Answers
The bike wheel that made 6.50 revolutions has rotated 40.82 radians.
What is angular displacement?Angular displacement can be defined as the angle by which a point revolves around a central point. When an object rotates about its axis in a circular motion then its velocity and acceleration change with time (t).
When the separations between the points remain the same throughout the motion then a body is concluded as rigid. The angular displacement of an object can be measured in radians.
θ = s/r
θ = 2πr/r can be simplified to 2π. Therefore, 1 revolution is equal to 2π radians.
Given, the number of revolutions of the bike wheel = 6.50 rev
The angular displacement = 6.50 × 2× 3.14 rad = 40.82 rad
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Related Questions
what would happen to the gravitational force between earth and the moon if the distance between them increased?
Answers
Answer:
The gravitation force would weaken.
Explanation:
It would weaken as they would have less of a effect on eachother. Additionally, the sun would most likely grab the moon and catapult it.. but we dont talk about it.
Explain why the water that is used to cool the reactor vessel of a nuclear power plant is kept separate from the water that is heated to produce steam for the turbine generators.
Answers
Explanation:
Reasons:
- to separate and
- to avoid formation of electricity.
Even though some things may be impossible such as raining cats and dogs, and humans turning into a different species, realistically, it can happen but at a very extremley low percent?
Answers
In the above case, It is not possible for it to rain cats and dogs as it is a figure of speech and not a literal occurrence. Similarly, humans cannot turn into a different species as it goes against the laws of science and biology.
While it may be possible for genetic mutations to occur, they are extremely rare and would not result in a change of species. Therefore, it is not realistic to expect these things to happen.
What is the species about?The statement above is not entirely accurate. Raining cats and dogs is a phrase used to describe heavy rain, it is not a real phenomenon. And humans cannot turn into a different species, it is a biological impossibility.
The concept of evolution over millions of years has led to the development of different species, but one species cannot turn into another within a short period of time or through any known scientific means.
Therefore, It is important to understand that some things are truly impossible, and it is not realistic to assume otherwise.
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See full question below
Even though some things may be impossible such as raining cats and dogs, and humans turning into a different species, realistically, it can happen but at a very extremley low percent? explain
If the half life of an isotope is 20 years, how much of the original amount will
remain after 20 years has passed?
Answers
Answer:
Half
Explanation:
If the half life of an isotope is 20 years, then half of the original amount will remain after 20 years has passed.
That's what "half-life" means.
Similarly, after ANOTHER 20 years, 1\4 of the original amount remains.
And after ANOTHER 20 years, 1\8 of the original amount remains.
And after ANOTHER 20 years, 1\16 of the original amount remains.
And after ANOTHER 20 years, 1\32 of the original amount remains.
And after ANOTHER 20 years, 1\64 of the original amount remains.
And after ANOTHER 20 years, 1\128 of the original amount remains.
How do you classify flammable liquid to gas and solid?
Answers
Answer:
A flammable liquid enjoys the attention of at least three different federal agencies: the DOT in matters of its transportation, OSHA as it might affect workplace safety, and the EPA concerning its cradle-to-grave management.A flammable liquid enjoys the attention of at least three different federal agencies: the DOT in matters of its transportation, OSHA as it might affect workplace safety, and the EPA concerning its cradle-to-grave management.Add to that a gaggle of state, regional, and local authorities; and we feel compelled to begin this blog entry with our favorite caveat: get expert advice before deciding what to do with that rusting drum of stale gasoline out back.Explanation:
I hope it help you;)
AV ASSIGNMENT what is the length of wire whose resistivity, 3x10^6 ohm with the r=0.2mm with a given Value of 15.5 ohm's Resistance.
Answers
Suppose you heat 1.00 kg of water and convert it into steam at the boiling temperature of water, 373 K, and at normal atmospheric pressure, 1.00 atm. What is the volume of the steam?
Answers
Answer:
The volume of the steam can be calculated using the ideal gas law, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. Since the mass of the water is given, we can calculate the number of moles using the molar mass of water, which is 18.02 g/mol.
n = (1.00 kg) / (18.02 g/mol) = 0.055 mol
Using the ideal gas law, we can calculate the volume of the steam:
V = (nRT) / P
V = (0.055 mol * 8.314 J/mol*K * 373 K) / (1.00 atm)
V = 14.3 m^3
A8 kg ball is held at postam A before being rolled down the ramp below. Asume no energy is lost due to
Position
A
A-5m)
Position
B
(x-2m)
Position
C
As
h-5m
Kinetic Energy
B
h-2.5 m
Gravitational Potential Energy
C
h-0m
Total Energy
Answers
The potential energy of the ball at position A is:
PE = mgh
where m is the mass of the ball, g is the acceleration due to gravity, and h is the height of the ball above the ground.
PE(A) = 8 kg * 9.8 m/s^2 * 5 m
PE(A) = 392 J
At position B, the ball has both kinetic and potential energy.
The potential energy of the ball at position B is:
PE = mgh
where m is the mass of the ball, g is the acceleration due to gravity, and h is the height of the ball above the ground.
PE(B) = 8 kg * 9.8 m/s^2 * 2.5 m
PE(B) = 196 J
The kinetic energy of the ball at position B is:
KE = (1/2)mv^2
where m is the mass of the ball and v is the velocity of the ball.
Since the ball is rolling down the ramp, we can use the conservation of energy principle to find the velocity of the ball at position B.
The total energy of the ball at position A is:
E(A) = PE(A)
E(A) = 392 J
The total energy of the ball at position B is:
E(B) = PE(B) + KE(B)
E(B) = 196 J + (1/2)(8 kg)v^2
E(B) = 196 J + 4v^2
Since energy is conserved, we have:
E(A) = E(B)
392 J = 196 J + 4v^2
196 J = 4v^2
v^2 = 49 m^2/s^2
v = 7 m/s
The kinetic energy of the ball at position B is:
KE(B) = (1/2)mv^2
KE(B) = (1/2)(8 kg)(7 m/s)^2
KE(B) = 196 J
At position C, the ball has only kinetic energy.
The potential energy of the ball at position C is zero since the ball is at ground level.
The kinetic energy of the ball at position C is:
KE(C) = (1/2)mv^2
KE(C
2. Circle the best answer:
1000 Newtons
1000 Newtons
A. The forces shown above are PUSHING / PULLING forces.
B. The forces shown above are WORKING TOGETHER/OPPOSITE FORCES.
C. The forces are EQUAL/NOT EQUAL.
D. The forces DO / DO NOT balance each other.
E. The resultant force is 1000 N TO THE RIGHT / 1000 N TO THE LEFT/ZERO.
F. There IS/IS NO motion.
Answers
According to the information we can infer that the forces are PULLING forces, OPPOSITE FORCES, EQUAL, forces DO balance each other, the resultant force is ZERO, and there IS NO motion.
How to explain each element in the image?According to the information of the image, we can conclude that the forces shown above are PULLING forces because they involve pulling a rope on each side. Also, the forces shown above are OPPOSITE FORCES because they act in opposite directions, pulling the rope towards different sides.
On the other hand, the forces are EQUAL in magnitude because each side exerts a force of 1000 Newtons. Additionally, the forces DO balance each other because they have the same magnitude and act in opposite directions. The individuals on each side are exerting equal forces, resulting in a balanced system.
Finally, the resultant force is ZERO because the forces are equal in magnitude and act in opposite directions. The combined effect of the forces is no net force or resultant force and there IS NO motion because the forces are balanced, resulting in a net force of zero. In a balanced system, the objects will remain at rest or in a state of uniform motion.
Note: This question is incomplete. Here is the complete information:
Attached image
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Within the living area of the colony, what atmospheric gases must be present on Venus?
Answers
Humans would need a breathable environment like that on Earth in the living section of a colony on Venus in order to survive. Nitrogen, oxygen, and trace amounts of other gases, such as carbon dioxide, make up the majority of the atmosphere on Earth.
What gases are present in Venus' atmosphere?The clouds are made of sulfuric acid, and the atmosphere is primarily carbon dioxide, the same gas that causes the greenhouse effect on Venus and Earth. And the heated, high-pressure carbon dioxide acts corrosively at the surface.
What gases are found in Mars' and Venus' atmospheres?For instance, compared to Earth, which has 99% nitrogen and oxygen in its atmosphere, Venus and Mars both contain more than 98% carbon dioxide and nitrogen.
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Two masses m1m1 and m2m2 exert a gravitational force of 12 N onto each other when they are 6 m apart. What will the gravitational force be if the masses are moved closer to be 3 m apart?
Answers
Answer:
48N
Explanation:
because as the distance is halfed. the force on the two objects are quadrupled.
what is the best name for binary compound of nitrogen and oxygen
A . Nitrogen oxide
B. Nitrogen oxnie
C.oxide nitrogen
D.Nitride oxygen
Answers
The average density of the body of a fish is 1080kg/m^3 . To keep from sinking, the fish increases its volume by inflating an internal air bladder, known as a swim bladder, with air.
By what percent must the fish increase its volume to be neutrally buoyant in fresh water? Use 1.28kg/m^3 for the density of air at 20 degrees Celsius. (change in V/V)
Answers
Answer:
Increase of volume (F) = 8.01%
Explanation:
Given:
Density of fish = 1,080 kg/m³
Density of water = 1,000 kg/m³
density of air = 1.28 kg/m³
Find:
Increase of volume (F)
Computation:
1,080 kg/m³ + [F × 1.28 kg/m³ ] = (1+F) × 1,000 kg/m³
1,080 + 1.28 F =1,000 F + 1,000
80 = 998.72 F
F = 0.0801 (Approx)
F = 8.01% (Approx)
Nitroball is similar to volleyball with no more than 3 touches per side?
Group of answer choices
True
False
Answers
Answer:
True!
Explanation:
A 56.4×10-12 F parallel plate capacitor is made of two conducting sheets of area 3.10 cm^2 separated by a film of mylar of dielectric colistant 3.1. The capacitor is connected to a 11.8 V battery.
€0 = 8.854 × 10-12 F/m.
Find the magnitude of the electric field between the plates of the capacitor?
Answers
The magnitude of the electric field between the plates of the capacitor is 19.47 V/m.
To find the magnitude of the electric field between the plates of the given capacitor, we can use the formula for electric field in a parallel plate capacitor. The electric field (E) between the plates of a parallel plate capacitor is given by the equation:
E = V/d
Where V is the voltage applied to the capacitor and d is the separation between the plates. In this case, the voltage applied is 11.8 V and the separation between the plates can be calculated using the area (A) and the dielectric constant (k) of the mylar film. The capacitance (C) of a parallel plate capacitor is given by the equation:
C = €0 * (A/d)
Where €0 is the permittivity of free space.
Rearranging the above equation, we can solve for d:
d = €0 * A / C
Substituting the given values, we have:
d = (8.854 × 10^(-12) F/m) * (3.10 × 10^(-4) m^2) / (56.4 × 10^(-12) F)
Simplifying the expression, we find:
d = 0.606 m
Now, substituting the values of V and d into the equation for electric field, we get:
E = (11.8 V) / (0.606 m)
E = 19.47 V/m
Therefore, the magnitude of the electric field between the plates of the capacitor is 19.47 V/m.
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Gamma rays have a higher frequency than visible light waves. What can you conclude from this?
A. Gamma rays carry more energy than visible light waves incorrect answer
B. Gamma rays carry less energy than visible light waves incorrect answer
C. Gamma rays can't be seen; visible light rays can incorrect answer
D. Gamma rays have a longer wavelength than visible light waves incorrect answer
Answers
Answer:
i think it d
Explanation:
Answer:
D
Explanation:
The higher the frequency, the longer the wavelength, so if gamma rays have a higher frequency, than gamma rays have a longer wavelength than visible light waves
What is the current in a 160 V circuit if the resistance is 2
Answers
V= IR
160 = I × 2
80 A = I = current
Answer:
80 A
Explanation:
by ohm's law, resistance is equal to the change in voltage over the current so if we plug and solve for current we get I = (160V)/(2V/A)= 80 A
An appeal of a state appellate court ruling can next be made to:
• A. a state trial court.
• B. the state supreme court.
• C. the U.S. Supreme Court.
• D. a U.S. Court of Appeals.
Answers
The decision of the country's highest court may then be appealing to that Supreme Court of both the U. S., but only in cases where the issue involves federal law.
Why is Supreme renowned?In particular, followers of hip-hop, surfing, and post - punk culture will find their clothing appealing. Every person who appreciates streetwear will discover the ideal item thanks to Supreme's wide range of clothing.
Why is Supreme so expensive?Rebellious and distinctive brand image! Despite giving a venture - capital group a 50% ownership in the company, Supreme has been able to keep its skater roots and fan base. To top it all off, the Supremes' emblem is distinctive, outstanding, and simple to recognize.
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The star Mintaka in the Orion constellation is about 30x larger than our sun with a radius of 5.74 x 10^9 m. It's surface temperature is about 29,500 K. Consider the spherical surface to behave as a blackbody radiator. What is the rate at which energy is radiated from this star, to 3 sig fig?
Answers
Due to the body is a blackbody e=1
\(\begin{gathered} P=5.6703\cdot10^{-8}\cdot(\pi\cdot(5.74\cdot10^9)^2)\cdot(29500^4-2.7^4) \\ P=4.445\cdot10^{30}W \end{gathered}\)This is the rate of energy over time that this star radiates
QUESTIONS
An ant walks eastward for 11.1 cm, then northward for 4,4 cm and finally westward for 11.1 cm. What is the magnitude of the displacement in cm Do
not include the units in your answer.
Answers
Answer:
4.4.
Explanation:
Hello,
In this considering the attached picture, we can see that the eastward movement is represented from O to A, the northward displacement from A to B and the westward displacement from B to C, which means that the resulting displacement is marked from O to C which includes the northwards movement since eastward and westward movement are the same.
In such a way, the magnitude of the displacement is simply 4.4 cm as no other dimension is taken into account due to the return to the same initial's x-axis position.
Regards-
A narrow beam of white light is incident on a sheet of quartz. Thebeam disperses in the quartz, with red light (λË700nm)traveling at an angle of 26.3o with respect to thenormal and violet light (λË400nm) traveling at25.7o. The index of refraction of quartz for red lightis 1.45. What is the index of refraction of quartz for violetlight?
Answers
Answer:
The index of refraction of quartz for violet light is 1.47.
Explanation:
It is given that, a narrow beam of white light is incident on a sheet of quartz.
The beam disperses in the quartz, with red light at an angle, \(\theta_r=26.3^{\circ}\) wrt to the normal and violet light traveling at an angle of \(\theta_v=25.7^{\circ}\)
The index of refraction of quartz for red light is 1.45.
We need to find the index of refraction of quartz for violet light.
Using Snell's law of red light as follows :
\(\mu_a\sin\theta_i=\mu_r\sin\theta_r\)
Here,
\(\mu_a\) is the refractive index of air
\(\theta_i\) is the angle of incidence
We can find the value of angle of incidence as follows :
\(\sin\theta_i=\dfrac{\mu_r \sin\theta_r}{\mu_a}\\\\\sin\theta_i=\dfrac{1.45\times \sin(26.3)}{1}\\\\\theta_i=\sin^{-1}(0.642)\\\\\theta_i=39.79^{\circ}\)
Now again using Snell's law for violet light as follows :
\(\mu_a\sin\theta_i=\mu_v\sin\theta_v\\\\\mu_v=\dfrac{\mu_a\sin\theta_i}{\sin\theta_v}\\\\\mu_v=\dfrac{1\times \sin(39.79)}{\sin(25.7)}\\\\\mu_v=1.47\)
So, the index of refraction of quartz for violet light is 1.47.
Two identical guitar strings are prepared such that they have the same length ( 0.62 m ) and are under the same amount of tension. The first string is plucked at one location, primarily exciting the second harmonic. The other string is plucked in a different location, primarily exciting the third harmonic. The resulting sounds give rise to a beat frequency of 324 Hz . What is the wave propagation speed on the guitar strings?
Answers
Answer:
The speed is 401.76m/s
Explanation:
To find the fundamental frequency we use
3rd.harmonic - 2nd.harmonic = 324Hz
And we know that
f=v/2L
So v=f2L
v= 324 x 2 x 0.62= 401.76m/s
A car's bumper is designed to withstand a 6.48-km/h (1.8-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.210 m while bringing a 830-kg car to rest from an initial speed of 1.8 m/s.
Answers
Answer:
6402.86 N
Explanation:
taking into account the energy-work theorem, we can write the following equation
\(\begin{gathered} W=K_f-K_i \\ Fd=\frac{1}{2}mv_f^2-\frac{1}{2}mv_i^2 \end{gathered}\)Where F is the force, d is the distance, m is the mass, vf is the final velocity and vi is the initial velocity.
Solving for F, we get:
\(F=\frac{mv_f^2-mv_i^2}{2d}\)Replacing m = 830 kg, vf = 0 m/s, vi = 1.8 m/s, and d = 0.210 m, we get:
\(F=\frac{(830)(0)^2-(830)(1.8)^2}{2(0.210)}=-6402.86\text{ N}\)Therefore, the magnitude of the force is 6402.86 N
What is the acceleration of a 25 kg mass pushed by a 10 N force?
Answers
Answer:
0.4 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
\(a = \frac{f}{m} \\ \)
f is the force
m is the mass
From the question we have
\(a = \frac{10}{25} = \frac{2}{5} \\ \)
We have the final answer as
0.4 m/s²Hope this helps you
Answer:
0.4 m/s²
Explanation:
hope this helps
If an airplane is accelerating down a runway at 2.5 m/s^2, how much is it’s velocity changing each second?
Answers
If an airplane is is accelerating down a runway at 2.5 m/s². It's velocity changes 2.5 m/s in each second.
What is acceleration?Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.
Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.
Hence, the velocity of the airplane changes 2.5 m/s in each second when it is accelerating down a runway at 2.5 m/s².
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Two students side in carts opposite to one another in a spinning Ferris wheel as shown.
Student A is originally at the bottom of the Ferris wheel while student B is at the top of the Ferris wheel. As the wheel turns, student B comes to the bottom white student A arrives at the top, as shown. The Ferris wheel spins at a constant speed so the two students are traveling with constant speed. Students A and B have masses ma and mb, respectively. The Ferris wheel has a radius R. What is the magnitude of the TOTAL work done on student A in moving from the bottom to the top of the Ferris wheel? The total work is the sum of the work done by all the forces on the body; i.e. Wtotal = sum(Fd). Neglect air resistance.
Also, what is the sign of the work done on student B by the Ferris wheel in moving from the top to the bottom?
Answers
Net work done on student B by the Ferris wheel in moving from the top to the bottom is mathematically given as
net work done on A =0.
Net work doneGenerally the equation for the work energy theorem is mathematically given as
net work done on A = change in kinetic energy of A.
Where, angular velocity is constant.
change in kinetic energy = 0.
Hence, from work energy theorem,
net work done on A =0.
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A car moving at 60 km/h comes to a stop in 10 s when the driver slams on the brakes.
In this situation, what does 60 km/h represent?
O Constant speed
O Average speed
O Final speed
O Initial speed
Answers
Answer:
Initial speed
Explanation:
A car moving at 60 km/h comes to a stop in 10 s when the driver slams on the brakes. In this situation, what does 60 km/h represent?
O Initial speed
Which example is a simple machine?
1. ramp
2. bicycle
3. car
4. steering wheel system of a boat
Answers
Answer:
Ramp
Explanation:
All of the other things are fairly complex, bikes have to be made with multiple parts so do cars and steering wheels are another part of a boat, a ramp usually consists of two or fewer parts making it the simplest.
What is the first job u do on the ISS if u were an astronaut
Answers
If I were an astronaut, the first job I would do on the International Space Station (ISS) would be to familiarize myself with the station and its systems.
What is expected at ISS?I would need to learn how to operate the various equipment and how to maintain the station in good working order. I would also need to learn the procedures for conducting experiments and for performing spacewalks.
Once I had a good understanding of the station and its systems, I would begin working on my assigned tasks. These tasks could include conducting experiments, performing maintenance, or teaching other astronauts new skills. I would also take the opportunity to conduct research on my own and to learn more about the space environment.
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I really need help! My amazing math teacher gave me some questions but these questions are physics questions. I don't know what to do, please help!
Answers
3.
a) Since Jimmy is on a swing, we can model the situation using a periodic function like sine or cosine. Since Jimmy starts from one of the high points, we can use the cosine function:
\(f(x)=A\cos (wx)+C\)b) It takes 1.5 seconds for jimmy to go from the high point in front of the swing to the high point behind the swing, this is half of the period, therefore:
\(\begin{gathered} \frac{T}{2}=1.5 \\ so\colon \\ T=3 \\ where \\ \omega=2\pi f \\ and \\ f=\frac{1}{T} \\ so\colon \\ \omega=\frac{2\pi}{3} \end{gathered}\)The equation will be given by:
\(\begin{gathered} H(t)=A\cos (\omega t)+C \\ where \\ A=1.5 \\ C=0.5 \\ H(t)=1.5\cos (\frac{2\pi}{3}x)+0.5 \end{gathered}\)c)
For t = 0.5:
\(\begin{gathered} f(0.5)=1.5\cos (\frac{2\pi}{3}(0.5))+0.5 \\ f(0.5)=1.25m \end{gathered}\)
