suppose that the bike rider in problem 15 pedaled up the hill and never came to a stop. in what system is energy conserved? from what form of energy did the bike gain mechanical energy?
Answers
The system in which the energy is conserved in Isolated system.
The bike gain mechanical energy from heat energy (friction force).
What is law of conservation of energy?The law of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.
The system must be isolated for the mechanical anergy to conserved. During the energy conservation, the kinetic energy of the bike from the ground level is converted into potential energy at the maximum height.
Mathematically, the formula for this energy conservation is written as;
Δ K.E = Δ P.E
where;
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Related Questions
How does the law of conservation of mass apply to this reaction: Mg + HCI + H2 MgClz?
O The equation needs to be balanced. There are fewer hydrogen atoms in the equation than magnesium or chlorine.
© Only the hydrogen needs to be balanced. There are equal numbers of magnesium and chiorine.
Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side
©
The
law of conservation of nÖss has already been
the equation.
applied. There is an equal number of each element on both sides of
Answers
You can’t just look at the individual elements. To balance the equation, Magnesium will be part of the balancing and hence you will be adding Magnesium to both sides of the equation etc
A7 lb bowling ball accelerates at a rate of 7 m/s2. If the net force on the bowling ball is
tripled, what will be its new acceleration? (1 point)
a. 2.3 m/s2
b. 7 m/s2
c. 14 m/s2
d. 21 m/s2
Answers
Answer: c
Explanation:
If the net force on the bowling ball is tripled, its new acceleration is 21 m/s². The correct option is d.
What is force?The force is the action of push or pull which can move or stop the object.
The initial force is F = mass x acceleration
F = 3.17515 kg x 7 m/s²
F = 22.23 N
When the net force is tripled, the new acceleration will b e
3 x F =m x a'
3 x 22.23 = 3.17515 x a'
a' = 21.003 m/s²
Thus, the new acceleration is 21 m/s². The correct option is d.
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Why do you expect the last color of the sunset to be on the red end of the visible spectrum?
Answers
We expect the last colour of the sunset to be on the red end of the visible spectrum because of the dispersion of light. Due to the particles present in the atmosphere, the light rays undergo scattering and the light of shorter wavelengths like blue gets dissipated but light rays of longer wavelengths travel long distances without getting dissipated.
Dispersion of light is the phenomenon in which the light from the sun is split into its constituent colours which are Violet, Indigo, Blue, Green, Yellow, Orange, and Red when it passes through a prism or due to the particles present in the earth's atmosphere.
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If a skateboarder is moving at 4 meters per second then changes its velocity to 10
meters per second over the course of 10 seconds what is the skateboards acceleration?
Answers
Answer:
i was doing this is it actually 0.6
Explanation:
;D
The acceleration of the skateboard from its initial velocity to the final velocity over the given time is 0.6m/s².
What is Motion?Motion is simply the change in position of an object over time.
From the First Equation of Motion;
v = u + at
Where v is final velocity, u is initial velocity, a is acceleration and t is time elapsed.
Given the data in the question;
Initial velocity u = 4m/sFinal velocity v = 10m/sTime elapsed t = 10sAcceleration of the skateboard a = ?To determine the acceleration of the skateboard, we substitute our given values into the expression above.
v = u + at
10m/s = 4m/s + ( a × 10s)
( a × 10s) = 10m/s - 4m/s
a × 10s = 6m/s
a = 6m/s ÷ 10s
a = 0.6m/s²
Therefore, the acceleration of the skateboard from its initial velocity to the final velocity over the given time is 0.6m/s².
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1. Label the parts of the chicken wing in the black wing diagram below
Answers
Module 3 Discussion!
After reading Ch.12 and 13 of the text (The essentials of Finance and Accounting for nonfinancial managers/ Third Edition) on Strategy and Financial Forecasting, watching the SWOT video based on Paley’s Products from the Ratio Analysis in Module 2 and the additional narrative information in Appendix C, Phase
Create a SWOT analysis that will reflect the TOWS analysis as described in Ch. 12 of the text. The purpose of the SWOT analysis is to lay out several issues and possibilities to be considered in Paley’s strategic planning. The strengths and weaknesses are internal issues, whereas the opportunities and threats are external.
The second part of the analysis is to create actions based on the SWOTs. This is sometimes called a TOWS analysis and is done by comparing the boxes, two at a time:
Offensive actions come from strengths that link to opportunities, so a specific strength can be applied to exploit an opportunity.
Adjusting actions come from addressing weaknesses, which then can be used to exploit opportunities that previously had not been possible.
Turnaround actions come from weaknesses that link to threats. These are high-risk issues where a priority needs to be given to addressing the weakness to minimize the vulnerability.
Defensive actions come from threats that link to strengths. These are latent issues because if the threat materializes, an already-existing strength is available to counter it.
Additional actions can be included to address other issues not directly identified in the SWOTs.
3. From the actions identified in part 2, pick 3-5 strategic actions that you feel Paley must achieve or at least start in the upcoming year and state your reasons for including them.
Attach your completed SWOT form and list of strategic actions with supporting logic and facts from the case as your answer for this discussion question. These actions are the foundation for the strategic plan
Answers
SWOT Analysis Strengths- Paley’s Products has a low overhead cost with the company operating at a high level of efficiency, resulting in competitive pricing.- They have a team of experienced employees who have worked in the industry for several years.- They have a variety of products in the portfolio that can satisfy customers from different sectors.- They are reputable and have a loyal customer base.Weaknesses- They have been slow to adopt new technology, and this may be a disadvantage to the company.- Limited marketing and sales promotion are affecting their sales revenue.-
They depend on a few key customers for the bulk of their sales revenue, leaving them vulnerable to market changes.Opportunities- Expansion of the product line to include unique products.- The establishment of strategic partnerships with other businesses in the industry.- Exploration of new markets, such as international markets.- Improvement of marketing techniques to increase brand awareness.Threats- Changes in consumer preferences towards environmentally friendly products.- Increase in competition from other businesses in the industry.- Fluctuating market prices for raw materials that may lead to price increases.
Strategic Actions to be taken by Paley Products1. Development of an E-commerce platform to allow online transactions with customers. The E-commerce platform will enable Paley to reach a wider customer base, expand its reach, and increase sales revenue.2. Investment in the research and development of new environmentally friendly products. Paley will remain competitive and cater to the needs of consumers who prefer green products.3. Establishment of strategic partnerships with other businesses in the industry to leverage the strength of other companies in the industry and to develop new products or increase market share.4. Improvement of marketing techniques to increase brand awareness and improve visibility. A marketing strategy that incorporates social media and other digital channels can help promote the brand to potential customers.5. Expansion into international markets. This will enable Paley to diversify its customer base and generate more revenue. Paley can start by targeting nearby countries, then expand globally as they gain more experience and financial stability.
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If light from one star is 40 times brighter (has 40 times more flux) than light from another star, what is their difference in magnitudes?
Answers
The difference between the magnitudes of stars will be 4.0 magnitudes.
What is the Magnitude of a Star?The term magnitude is used to refer to a star's brightness.
Two different magnitudes are used by astronomers to describe stars. The brightness of the star as seen from Earth is known as its apparent magnitude. The perceived brightness is the basis for the magnitude scale. Astronomers can use this to establish the star's exact absolute magnitude. The real brightness of the star is measured by its absolute magnitude.
According to the question, the difference between the magnitude of two stars will be :
\(m_b-m_a\)=2.5 log(\(I_A/I_B\)) where,
\(m_a\) and \(m_b\) is the magnitude of star A and Star B and,
\(I_A\) and \(I_B\) is the intensity of star A and Star B
As per the given value, the intensity ratio of the two stars is :
\(I_A/I_B\)=40
So, by using the formula :
\(m_B-m_A\)=2.5 log(\(I_A/I_B\))
=2.5 log (40)
=4.0 magnitudes.
Hence, the magnitude difference between two stars is 4.0 magnitudes.
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The gymnast swings from one bar to the other bar several times.
Describe how the gravitational potential energy store and the kinetic energy store of the
gymnast change as she moves between the bars.
Answers
Each and every ounce of potential energy begins to transform into kinetic energy. Also, the height at the bottom is zero and is not present. Her ability to sense energy is thus at its optimum, and potential energy equals zero.
In plain terms, what is kinetic energy?Kinetic energy is indeed the power a thing has as a result of motion. Applying a force is necessary in order to accelerate an object. We must exert effort in order to apply a force. Once the job is finished, energy is transferred to the item, which then moves at a new, constant speed.
Why is it known as kinetic energy?An object or particle has kinetic energy because of its motion. When an item undergoes work—the transfer of energy—by being subjected to a net force, it accelerates and acquires kinetic energy.
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Part C
Just like in the diagram, when Earth was primarily liquid, it separated into layers. What prediction can you make about the
densities of Earth's different layers?
Answers
When the Earth was primarily liquid, it separated into layers. The density of Earth's different layers may be predicted. For instance, it is assumed that the outermost layer, or crust, is less dense than the inner layers.
The Earth's crust is mostly composed of silicates (such as quartz, feldspar, and mica) and rocks, which are less dense than the mantle, core, or outer core.
The mantle is composed of solid rock, which is denser than the Earth's crust.
The core is the most dense layer, and it is composed of a liquid outer core and a solid inner core.
Most of the Earth's layers are composed of different types of rock and minerals.
The layers were formed from the molten material that cooled and solidified.
The Earth's layers are divided into four groups, or spheres, that represent different levels of density.
The lithosphere is the outermost layer, which includes the crust and upper mantle.
The asthenosphere is the soft layer beneath the lithosphere.
The mantle is a solid layer that surrounds the core.
The core is the Earth's central layer, consisting of a liquid outer core and a solid inner core.
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Consider an air-filled charged capacitor. Howcan its capacitance be increased?
Increase thecharge on the capacitor.
Decrease thecharge on the capacitor.
Increase thespacing between the plates of the capacitor.
Decrease thespacing between the plates of the capacitor.
Increase thelength of the wires leading to the capacitor plates.
Answers
The capacitance of an air-filled charged capacitor can be increased by increasing the spacing between its plates. Correct alternative is option B.
Capacitance is the ability of a capacitor to store electrical charge. It depends on several factors, including the size of the capacitor's plates, the distance between them, and the material between the plates.
In the case of an air-filled charged capacitor, the distance between the plates (i.e., the spacing) is a significant factor in determining its capacitance. The closer the plates are to each other, the higher the capacitance, and vice versa.
Therefore, to increase the capacitance of an air-filled charged capacitor, we need to increase the spacing between its plates. This can be achieved by physically moving the plates apart or using a different capacitor with wider plate spacing.
Increasing the charge on the capacitor will not increase its capacitance, but it will increase the amount of charge stored in the capacitor, which is related to its energy storage capacity. Decreasing the charge on the capacitor will not affect its capacitance but will decrease the amount of charge stored in the capacitor.
Similarly, increasing the length of wires leading to the capacitor plates will not affect its capacitance. The capacitance is only determined by the properties of the plates and the spacing between them.
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solve the equation below for vi.
d=vit +.5at2
Answers
Answer: \(\dfrac{d-0.5at^2}{t}=v_i\)
Explanation:
\(d=v_it+0.5at^2\\\\\\\text{Subtract}\ 0.5at^2\ \text {from both sides:}\\d-0.5at^2=v_it\\\\\\\text{Divide both sides by t:}\\\dfrac{d-0.5at^2}{t}=v_i\)
A student fires a cannonball vertically upwards with a speed of 22.0m/s from a height of 40.0m. On the descent, the cannonball misses the building and lands on the ground. Determine all unknowns and answer the following questions. Neglect drag and horizontal motion of the cannonball.What was the cannonball's maximum height (measured from the ground)? With what speed did the cannonball strike the ground? What was the cannonball's total flight time?
Answers
We are given that an object is launched with an initial height and we are asked to determine its maximum height. To do that we will determine first the time it takes the object to reach the maximum height which is given by the following formula:
\(t=\sqrt[]{\frac{2v_0}{g}}\)Where:
\(\begin{gathered} t=\text{ time for maximum height} \\ v_0=\text{ initial velocity} \\ g=\text{ acceleration of gravity} \end{gathered}\)Replacing the values we get:
\(t=\sqrt[]{\frac{2(22\frac{m}{s})}{9.8\frac{m}{s^2}}}\)Solving the operations we get:
\(t=2.12s\)Now, to determine the height associated with this time we will use the following formula:
\(h=h_0+v_0t-\frac{1}{2}gt^2\)Where:
\(h_0=\text{ initial height}\)In this case, the initial height is 40 meters. Replacing the known values:
\(h=40m+(22\frac{m}{s})(2.12s)-\frac{1}{2}(9.8\frac{m}{s^2})(2.12s)^2\)Solving the operations:
\(h=64.61m\)Therefore, the maximum height the ball reaches measured from the ground is 64.61 meters.
Now we are asked to determine the final velocity of the object. To do that, we will use the following formula:
\(2gh=v^2_f-v^2_0\)Where:
\(\begin{gathered} h=\text{ }initial\text{ height} \\ v_f=\text{ final velocity} \end{gathered}\)Now we solve for the final velocity first by adding the square of the initial velocity:
\(2gh+v^2_0=v^2_f\)Now we take the square root to both sides:
\(\sqrt{2gh+v^2_0}=v^{}_f\)Replacing the known values:
\(\sqrt[]{2(9.8\frac{m}{s^2})(40m)+(22\frac{m}{s})^2}=v_f\)Solving the operations:
\(35.6\frac{m}{s}=v_f\)Therefore, the final velocity is 35.6 meters per second directed towards the ground.
Now we are required to determine the time the object stays in the air. To do that we will use the following formula:
\(v_f=v_0-gt\)We will solve for "t" first by subtracting the initial velocity from both sides:
\(v_f-v_0=-gt\)Now we divide both sides by the acceleration of gravity with the negative sign:
\(\frac{v_f-v_0}{-g}=t\)Now we replace the values, but we need to have into account that since the final velocity is directed towards the ground its sign is negative:
\(\frac{-35.6\frac{m}{s}-22\frac{m}{s}}{-9.8\frac{m}{s}}=t\)Solving the operations:
\(5.87s=t\)Therefore, the cannonball's total time is 5.87 seconds.
A capacitor is a simple electrical device. It consists of three parts sandwiched tightly together. Two outer layers made of conductors are separated by an insulating middle layer. A simple circuit is made with a capacitor, a wire, and a battery. When fully connected, which of the following occurs?
1. The insulator stops the flow of electricity.
2. One plate becomes positively charged.
3. The net charge on the capacitor remains at zero.
Answers
I only
II only
I, II, and III
I and II only
Answers
A substance that prevents free flow of electrical current is known as an electrical insulator. The electrons in the insulator's atoms are securely bonded and immobile.
Which plate is electrically positive?Protons are in overabundance on an aluminium plate that is positively charged. A positively charged aluminium plate has a deficiency of electrons when viewed from the perspective of electrons. We might characterise each extra proton as being somewhat dissatisfied in terms of people.
How could a plate get charged up positively?The other plate develops an imposed positive charge as a result of the electron's electric field, which pulls on the electrons that are in that plate and repels other electrons.
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An orrery is a mechanical model of the solar system. Gear ratios approximate the ratio of orbital periods for various planets and accurate ratios are necessary to build an accurate orrery. The numerator and denominator of the rational approximation corresponds to the number of teeth in the two gears that model the corresponding orbits. Calculate the ratio approximation of planet1pe
Answers
1:12.375 is the combined gear ratio. This indicates that there will be 12.375 full Moon rotations in a full cycle, or one year.
What is the gear ratio for orrery?The accuracy over a year is 99.94% since the simulated value is similar to the real value and the inaccuracy is less than 0.06%. An orrery is often a mechanical representation of the Solar System, or at the very least, the main planets. In order to imitate the motion of the planets (and, in certain circumstances, major moons) around the Sun, this gadget is powered by a clockwork mechanism.
The pinion is the smaller of the two gears in mesh, and the gear ratio is the ratio of the number of teeth in the gear to the number of teeth in the pinion. By dividing the output speed by the input speed (i= Ws/ We) or by dividing the number of teeth on the driving gear by the number of teeth on the driven gear (i= Ze/ Zs), the gear ratio may be computed.
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A 615.00 kg race car is uniformly traveling around a circular race track. It takes the race car 20.00 seconds to do one lap around the 80.00 m radius circular track. What is the frequency of the race car's circular motion?
Answers
Answer:
The value is \(f = 0.05 \ Hz\)
Explanation:
From the question we are told that
The mass of the car is \(m = 615 \ kg\)
The period of the circular motion is \(T = 20 \ s\)
The radius is \(r = 80 \ m/s\)
Generally the frequency of the circular motion is
\(f = \frac{1}{T }\)
=> \(f = \frac{1}{ 20 }\)
=> \(f = 0.05 \ Hz\)
Is potential energy higher at the equilibrium position?
Answers
A cow standing atop a building in Times Square recalled a funny joke and began to laugh. The uncontrollable laughter caused the cow to fall over the side of the building. He fell for a time period of 3.5 s and landed in a bed of bushes. How fast was the cow moo-ving when he reached the bushes?
Which equation should be used to solve the problem?
Answers
Answer:
Vf = 34.3 m/s
1st equation of motion was used to solve.
Explanation:
In order to find the final speed of the cow, when it hits the bushes, we can use first equation of motion:
Vf = Vi + gt
where,
Vf = Final Velocity of Cow = ?
Vi = Initial Velocity of Cow = 0 m/s
g = acceleration due to gravity = 9.8 m/s²
t = time taken = 3.5 s
Therefore,
Vf = 0 m/s + (9.8 m/s²)(3.5 s)
Vf = 34.3 m/s
1st equation of motion was used to solve.
suppose that the force exerted on an electron is 5.6 x 10-17 n, directed to the east. (a) find the magnitude of the electric field that exerts the force. (b) what will be the direction of the electric field? (c) if the electron is replaced by a proton, what will be the magnitude of force exerted? (d) what will be the direction of force on the proton?
Answers
Answer:
Explanation:
(a) To find the magnitude of the electric field (E) that exerts a force on an electron, we can use the equation:
F = q * E
where F is the force exerted on the electron, q is the charge of the electron (approximately -1.6 × 10^-19 C), and E is the electric field.
Substituting the given values into the equation, we have:
5.6 × 10^-17 N = -1.6 × 10^-19 C * E
Solving for E, we get:
E = (5.6 × 10^-17 N) / (-1.6 × 10^-19 C)
E ≈ -3.5 × 10^2 N/C (magnitude)
The magnitude of the electric field that exerts the force is approximately 3.5 × 10^2 N/C.
(b) The negative sign indicates that the electric field is directed opposite to the force. Therefore, the direction of the electric field is to the west.
(c) If the electron is replaced by a proton, the magnitude of the force (F) exerted can be calculated using the same equation:
F = q * E
For a proton, the charge is the same as the electron but with a positive sign (+1.6 × 10^-19 C). Substituting this value and the magnitude of the electric field (3.5 × 10^2 N/C) into the equation, we have:
F = (1.6 × 10^-19 C) * (3.5 × 10^2 N/C)
F ≈ 5.6 × 10^-17 N
The magnitude of the force exerted on the proton is approximately 5.6 × 10^-17 N.
(d) The force on the proton will be in the same direction as the electric field, which is to the west.
A 1210-turn solenoid 17.2 cm long and 1.58 cm in diameter carries 165 mA. How much magnetic energy does it contain? Express your answer with the appropriate units. My answer was 4.56*10^-4 J and was marked WRONG.
Answers
According to the question the length of the solenoid. For this problem is \(4.56 * 10^{-3\) J.
What is solenoid?A solenoid is an electrical device that is used to convert electrical energy into mechanical energy. It consists of a coil of wire wound around a metal core, and when electric current passes through it, a magnetic field is created. This magnetic field then causes a metal plunger to move in and out of the coil, creating a mechanical force. Solenoids are commonly used in applications such as electric door locks, automatic valves, and electric actuators.
The magnetic energy stored in a solenoid is given by the formula \(U = (1/2) \mu n^2I^2L\)L, where μ is the permeability of free space (\(\mu = 4\pi*10^{-7} Tm/A\)), n is the number of turns, I is the current, and L is the length of the solenoid. For this problem, \(U = (1/2)(4pi*10^{-7})(1210)^2(165\times10{^-3})^2(17.2\times10^{-2}) = 4.56 * 10^{-3} J.\).
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What do all scientific areas of study have in common?
Answers
Answer:
They examine theories in a systematic manner.
Explanation:
After t seconds the displacement, s(t), of a particle moving rightwards along the x-axis is given (in feet) by s(t) = 5t^2 − 7t + 2 . Determine the average velocity of the particle over the time interval [1, 2]. 1. average vel. = 6 ft/sec 2. average vel. = 5 ft/sec 3. average vel. = 8 ft/sec 4. average vel. = 7 ft/sec 5. average vel. = 4 ft/sec
Answers
the average velocity is given by the change in displacement divided by the change in time: average velocity = (change in displacement) / (change in time) = 8 ft / 1 sec = 8 ft/sec.
To determine the average velocity of the particle over the time interval [1, 2], we need to find the change in displacement and divide it by the change in time.
Given that the displacement function is s(t) = 5t^2 - 7t + 2, we can find the displacement at the endpoints of the interval:
s(1) = 5(1)^2 - 7(1) + 2 = 5 - 7 + 2 = 0
s(2) = 5(2)^2 - 7(2) + 2 = 20 - 14 + 2 = 8
The change in displacement is s(2) - s(1) = 8 - 0 = 8 feet.
The change in time is 2 - 1 = 1 second.
Therefore, the average velocity is given by the change in displacement divided by the change in time:
average velocity = (change in displacement) / (change in time) = 8 ft / 1 sec = 8 ft/sec.
Therefore, the correct answer is 3. average vel. = 8 ft/sec.
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Newton's third law states that any action will have a(n) _______ and ______ reaction.
Answers
Newton's third law states that any action will have a(n) equal and opposite reaction.
if a balloon is cooled what will happen to the volume
Answers
If a balloon is cooled, its volume will decrease. This is because gases behave differently than solids and liquids when subjected to temperature changes.
In general, as the temperature of a gas decreases, the particles in the gas slow down and move closer together. This results in a decrease in the volume of the gas, since the same number of particles are now occupying a smaller space.
In the case of a balloon, the gas inside it will behave in the same way. As the gas cools, the particles will move closer together and the pressure inside the balloon will decrease, causing the balloon to shrink. This is why helium balloons, for example, tend to deflate in cold temperatures.
It is important to note that the decrease in volume will depend on the initial temperature and pressure of the gas, as well as the temperature to which it is cooled. In addition, if the cooling process is severe enough, the gas may even condense into a liquid or solid, which will result in a much greater decrease in volume.
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express 0.0097 in scientific notation
Answers
Explanation:
Move the decimal point until it is behind the first non-zero digit.
In this case, we move it 3 places to the right so it is behind the 9.
Therefore, 0.0097 = 9.7×10⁻³.
A square wave can be synthesized as a series of odd harmonics with amplitudes
an=1na,n=1,2,3...., where a is the amplitude of the fundamental f1. Given that
a=10−3m find the amplitudes of the first five harmonics in the series of the square wave.
Answers
A square wave can be synthesized as a series of odd harmonics, where the amplitude of each harmonic is given by the formula an = 1/(na). In this case, the amplitude of the fundamental frequency (a) is 10^-3 m.
We are asked to find the amplitudes of the first five harmonics in the series.
1. For the first harmonic (n = 1), the amplitude is:
a1 = 1/(1 * 10^-3) = 1000 m
2. For the second harmonic, since n = 2 is not an odd integer, we skip it.
3. For the third harmonic (n = 3), the amplitude is:
a3 = 1/(3 * 10^-3) = 333.33 m
4. For the fourth harmonic, again n = 4 is not odd, so we skip it.
5. For the fifth harmonic (n = 5), the amplitude is:
a5 = 1/(5 * 10^-3) = 200 m
To summarize, the amplitudes of the first five harmonics in the square wave series are as follows: a1 = 1000 m, a3 = 333.33 m, and a5 = 200 m. Note that only odd harmonics contribute to the square wave, and even harmonics are not included in this analysis. The string vibrates at twice the fundamental frequency, which is the lowest possible standing wave. A wave is the vibration of a string. A vibrating string produces a sound with a constant frequency, or pitch, due to resonance. If the length or tension of the string is properly adjusted, a melodic tone will be created.
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A wheel with radius 28 cm is rotating at a rate of 16 rev/s.
In a time interval of 9 s, what is the angle in radians through which the wheel rotates?
Answers
The angle in radians through which the wheel rotates can be determined using the formula:
Angle (in radians) = (Number of revolutions) × (2π)
Given that the wheel is rotating at a rate of 16 rev/s for a time interval of 9 seconds, we can calculate the number of revolutions by multiplying the rate by the time:
Number of revolutions = (16 rev/s) × (9 s) = 144 rev
Substituting this value into the formula, we can find the angle in radians:
Angle (in radians) = (144 rev) × (2π) = 288π radians
Therefore, in a time interval of 9 seconds, the wheel rotates through an angle of 288π radians.
To understand why we use the formula Angle (in radians) = (Number of revolutions) × (2π), it's important to note that one revolution corresponds to an angle of 360 degrees or 2π radians. In this case, the wheel is rotating at a given rate, so multiplying the rate by the time gives us the number of revolutions. Multiplying the number of revolutions by 2π gives us the angle in radians.
By performing the calculations without using the listed phrases, we arrive at the result of 288π radians for the angle through which the wheel rotates in a time interval of 9 seconds.
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3.-¿ Como actuarias tú, si en pleno juego el árbitro toma una decisión, apesar de estar equivocado?¿finalizado el encuentro te despedirias del arbitro? Si - No ¿Porqué?
Answers
Answer:
Comprobar explicación
Explanation:
Si el árbitro toma una decisión en el medio del juego, a pesar de estar equivocado, normalmente, como humano, las emociones están destinadas a superarlo, pero de acuerdo con el reglamento, hay conductas aceptables y una protesta llena de emociones. en el árbitro puede salirse de las manos y conducir a más castigos de acuerdo con los libros de reglas.
Después del partido, por lo general, aún me despediría y expresaría mi desagrado tan cortésmente como pueda, pero porque cuando uno se equivoca, las emociones que lo acompañan pueden volverse increíblemente incontrolables, por lo tanto, es mejor mantener el control y no obtener castigado aún más.
¡¡¡Espero que esto ayude!!!
Helppppppp pleaseeee
Answers
Answer: (Sorry, but I don't know how to calculate mass)
1. 15 N
2. 0.4921 \(\frac{ft}{s^2}\) (feet per second squared)
4. 150 N
5. 8.202 feet per second squared
Q 1. Choose the correct answer.
Which scientist studied and wrote a thesis on convection currents?
Dietz
Tuzo-Wilson
Wegener
McKenzie
Answers
Answer:
Dietz
Explanation:
He is the guy you must justt be smart and know stuff.
does frequency of the sound affect speed of sound
Answers
Answer:
One of the more important properties of sound is that its speed is nearly independent of frequency. ... Therefore, the relationship between f and λ is inverse: The higher the frequency, the shorter the wavelength of a sound wave. The speed of sound can change when sound travels from one medium to another.