10. An airplane is flying east at 150m/s. If the forces on the airplane add to 0, describe what will
happen to its motion.

Answer:

48cm by the minus of difference of 32 CM length 20 CM because of the length of the building

The letter moves in Right to left direction.

Observation of the Letter “e” :

PROCEDURE:

1. Cut out a letter “e” and then  place it on slide face up.

2. Add a drop of water on the slide.

3. Place  coverslip on top of “e” and drop of water at 45-degree angle and lower. Draw what is on slide .Figure1.

4. Place slide on stage and view it  in low  power .Centre the “e” in

field of view. Draw what you see in Figure 2.

5. Move the slide to the left ,then move the slide to the right,

Answer:

True

Explanation:

Gas always live in free state but some gas is not . We can said that mostly gas volume can be changeable during disturbing by environment situation.

a ) v = v o + a t  ( the acceleration will be negative )

9.50 = 16.0 + a * 1.2

a * 1.2 = -16.0 + 9.50

a * 1.2 = - 6.5  

a = - 6.5 : 1.2

a = - 5.4167 m/s²

F = m * a = 950 kg * 5.4167 m/s²

F = 5,145.8 N ( the average force exerted on a car during braking )

b ) d = v o - a t² / 2

d = 16.0 * 1.2 - ( 5.4167 * 1.2² / 2 ) =

= 19.20 - 3.90 = 15.30 m

Answer:

electromagnetic radiation hopefully

Answer:

b. 0.6m/s, 0.7m/s, 0.61m/s, 0.62m/s

Explanation:

Precision of a measurement is the closeness of the experimental values to one another. Hence, experimental measurements are said to be precise if they are close to each other irrespective of how close they are to the accepted value. Precision can be determined by finding the range of each experimental value. The measurement with the LOWEST RANGE represents the MOST PRECISE.

Note: Range is the highest value - lowest value

Set A: 1.5 - 0.8 = 0.7

Set B: 0.7 - 0.6 = 0.1

Set C: 2.4 - 2.0 = 0.4

Set D: 3.1 - 2.9 = 0.2

Set B has the lowest range (0.1), hence, represent the most precise value.

Answer:1 7/25

Explanation:take the total distance7.3-4.1 then divide by the total time taken

The average velocity of the object is equal to -1.28m/s relative to the origin when it moves for 2.4 seconds.

Average velocity is a vector quantity and is defined as the change in position (∆x) divided by the time intervals (∆t) in which it occurs. The average velocity can be positive or negative and the S.I. unit of average velocity is m/s.

The average velocity of an object = ∆x/∆t

The average velocity of an object involves only the displacement of the object. However, the magnitude of the displacement of an object can be different from the actual path length.

Given, the displacement of the object = final position - initial position

∆x = 4.1 - 7.3 = -3.2m

The time, ∆t = 2.5 - 0 = 2.5 s

The average velocity of the object = ∆x/∆t = -3.2/2.5 = -1.28 m/s

Therefore, the average velocity of the object is -1/28 m/s relative to origin.

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Answer:

a = 3.5 m/s^2

Explanation:

a basic equation of physics is f = ma

we can rearrange that to a= f/m

so plug in your values: a = 175 / 50

you get a = 3.5 m/s^2

Answer:

Alloy, metallic substance composed of two or more elements, as either a compound or a solution. The components of alloys are ordinarily themselves metals, though carbon, a nonmetal, is an essential constituent of steel.

Explanation:

Alloys are usually produced by melting the mixture of ingredients. The value of alloys was discovered in very ancient times; brass (copper and zinc) and bronze (copper and tin) were especially important. Today, the most important are the alloy steels, broadly defined as steels containing significant amounts of elements other than iron and carbon. The principal alloying elements for steel are chromium, nickel, manganese, molybdenum, silicon, tungsten, vanadium, and boron have a wide range of special properties, such as hardness, toughness, corrosion resistance, magnetizability, and ductility. Nonferrous alloys, mainly copper–nickel, bronze, and aluminum alloys, are much used in coinage. The distinction between an alloying metal and an impurity is sometimes subtle; in aluminum, for example, silicon may be considered an impurity or a valuable component, depending on the application, because silicon adds strength though it reduces corrosion resistance.

An example of no work after the effort is work done by the collie to travel a distance in a straight line by lifting a mass.

In physics, the word "work" involves the measurement of energy transfer that takes place when an item is moved over a range by an externally applied, at least a portion of which is applied within the direction of the displacement.

The length of the path is multiplied by the element of a force acting all along the path to calculate work if the force is constant. The work W is theoretically equivalent towards the force f times the length d, or W = fd, to portray this concept.

The amount of work done by the coolie to travel a certain distance in a straight line by lifting a certain amount of mass. Here the work done is zero because when the coolie lifted the mass the force exerted in the upward direction makes an angle of 90° and as per the formula of work done it will be equal to zero.

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Answer:

This

Explanation:

Khan academy answer

Answer:(x-32) * 5/9

Explanation:

(52°F − 32) × 5/9 = 11.1111°C

Answer:

the answer is A

Explanation:

The answer is A

The Choice in which the bond Strength ranks in the correct order is Choice A; S-S < K-K < K-S

According to the question;

The bond strength of a bond increases with increasing polarity of the bond.

Evidently, From the options above; In Choice A;

The polarity of S-S < K-K < K-S

As such, the bond strength which ranks in the correct order is Choice A: S-S < K-K < K-S

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As the voltage across a capacitor goes from 97 V to 112 V, the charge on the capacitor rises by 15 C. The capacitance of the capacitor is 1 µF.

The capacitance of a capacitor is defined as the ratio of the charge stored on the capacitor to the voltage across it. Therefore, we can use the given information to calculate the capacitance of the capacitor as follows:

ΔQ = Q2 - Q1

= 15 µC

ΔV = V2 - V1

= 112 V - 97 V

= 15 V

C = ΔQ / ΔV

= (15 µC) / (15 V)

= 1 µF

Therefore, the capacitance of the capacitor is 1 µF.

This result shows that the capacitance of a capacitor is a constant value that depends on the physical characteristics of the capacitor, such as its geometry and the material between its plates. The charge on a capacitor and the voltage across it are related to each other through the capacitance of the capacitor, and any changes in the charge or voltage can be used to determine the capacitance.

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Answer:

add add more hot water in the flask painted shiny white while less of it in the one painted Matt black

Explanation:

Let's name the flasks A and B respectively

flask A due to the nature of its exterior will tend to reflect heat from the environment thus will need more hot water while flask B since it painted in Matt black the heat will be absorbed from the environment thus will require less hot water

The ball will reach a maximum height of 4.9 m and return back to its initial position with the same speed of 9.8 m/s. The answers are

a. 4.9 m

b. 9.8 m/s

Speed is the distance travelled by a body per time taken. It is a scalar quantity. It is measured in m/s.

Given that a baseball player throws a ball straight up in the air with a speed of 9.8 m/s.

(a) To know how high the ball go, let us use the formula

v² = u² - 2gH

Where

Substitute all the parameters to get H

0 = 9.8² - 2 × 9.8 × H

96.04 = 19.6H

H = 96.04/19.6

H = 4.9 m

(b) The ball will reach the height with zero speed but return back to the same point which it was thrown up with the same speed which is 9.8 m/s

Therefore, the ball will reach a maximum height of 4.9 m and return back to its initial position with the same speed of 9.8 m/s

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Answer:

professional communication style is expected to be formal while the casual is informal.

Explanation:

Answer:

It tastes like an orange, I don't think that you can replicate taste as much as looks, I could be wrong though. But yes it is confusing.

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Please tell me if you need me to elaborate more or show work!! I hope this helped and have a nice day!

According to the quantum mechanical model, electrons are best imagined to exist in orbitals (option b).

In the quantum mechanical model, electrons are not thought to follow specific, well-defined paths like planets in elliptical or circular orbits. Instead, they are described by wave functions that represent their probability distribution in three-dimensional space. These wave functions are called orbitals.

Orbitals define the regions around the nucleus where electrons are most likely to be found. They can have various shapes and orientations, such as s, p, d, and f orbitals, which are characterized by different symmetries and energy levels. The concept of orbitals is fundamental to understanding the behavior and properties of electrons in atoms.

Option B is the correct answer.

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Answer:

The Seaborg introduced the whole new row to the periodic table called actinides.

Explanation:

The american scientist Glenn Seaborg has many important contribution the chemistry. His work made a significant change in the mendeleev's periodic table. He introduced new row that is placed below the lanthanides row, called actinides.

He was co-discoverer or principle discoverer of plutonium and einsteinium. He was responsible for the discovery of more than 100 medical isotopes.

Thus, the Seaborg introduced the whole new row to the periodic table called actinides.

Answer:

The height is 1.20 m above the window.

Explanation:

Given that,

Height of window = 1.10 m

Time = 0.190 sec

We need to calculate the velocity

Using equation of motion

\(s=ut+\dfrac{1}{2}gt^2\)

Put the value into the formula

\(1.10=u\times0.190+\dfrac{1}{2}\times9.8\times(0.190)^2\)

\(1.10=u\times0.190+0.17689\)

\(u=\dfrac{1.10-0.17689}{0.190}\)

\(u=4.85\ m/s\)

We need to calculate the height

Using equation of motion

\(v^2=u^2+2gh\)

Put the value into the formula

\((4.85)^2=0+2\times9.8\times h\)

\(h=\dfrac{(4.85)^2}{2\times9.8}\)

\(h=1.20\ m\)

Hence, The height is 1.20 m above the window.

The ratio of the newly allowed intensity to the previously allowed intensity is 3.1623 x 10⁻³.

Banks says a leaf blower makes 64 to 78 decibels at 50 feet. To the operator's ear, the noise is 95-115 decibels. According to Dangerous Decibels, a public-private partnership aimed at reducing hearing loss, typical speech is around 60 decibels, washing machines 75 decibels, and chainsaws 115 decibels.

Performance that fits your needs. Setting the motor to a low speed makes less noise. According to the American Green Zone Alliance, an organization dedicated to zero-emission landscaping, the average fan produces about 65 dB of noise. Compare this to the average noise level of a traditional gas backpack blower.

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The car can safely slow down to a velocity of 2.58 m/s as per the given data.

Speed is the rate at which an object moves along a path in time, whereas velocity is the rate and direction of movement. In other words, velocity is a vector, whereas speed is a scalar value.

We can use the formula for deceleration:

Deceleration = (final velocity - initial velocity) / time taken

100 km/h = 100,000 m/3600 s = 27.78 m/s

Using the formula for deceleration, we get:

30 = (0 - 27.78) / t

t = 0.926 seconds

The minimum velocity the car can slow down to during a collision with the barrels without the crash being fatal is:

Final velocity = initial velocity - deceleration x time taken

Final velocity = 27.78 - 30 x 0.926

Final velocity = -2.58 m/s

The initial momentum of the car is:

p1 = m1v1 = 1200 kg x 27.78 m/s = 33,336 kg m/s

The initial momentum of the barrels is:

p2 = m2 x 0 = 0 kg m/s

The final momentum of the combined unit is:

p3 = (m1 + m2) x V

p1 + p2 = p3

33,336 = (1200 + M) x V

0.5 x (M + 1200) x V^2 = 0.5 x 1200 x \((2.58)^2\)

(33,336 / \((1200 + M))^2\) = (1200 x \((2.58)^2\)) / (M + 1200)

Therefore, the mass of water needed in the barrels to bring the 1200 kg-car down to the required speed is:

Mass of water = M - mass of barrels

Mass of water = 1851 - 1200

Mass of water = 651 kg

Thus, this can be concluded regarding the given scenario.

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The filament in the 60-watt bulb has greater resistance and will experience a greater voltage drop when both bulbs are connected in series to a 120V source.

In a 120V circuit, the resistance of a filament bulb is determined by its power rating (in watts) and the voltage across it. We know that power is given by the formula P = V^2/R, where P is power, V is voltage, and R is resistance.

To compare the resistance of the filaments in a 60-watt bulb and a 120-watt bulb, we need to calculate the resistance for each.

For the 60-watt bulb, we can use the formula R = V^2/P, substituting V = 120V and P = 60W. Solving for R, we get R = 240 ohms.

For the 120-watt bulb, using the same formula, we have R = V^2/P, substituting V = 120V and P = 120W. Solving for R, we get R = 60 ohms.

Therefore, the filament in the 60-watt bulb has a greater resistance (240 ohms) compared to the filament in the 120-watt bulb (60 ohms).

Now, when the two bulbs are connected in series to a 120V source, the voltage drop across each bulb depends on their resistances.

Using Ohm's law (V = IR), where V is voltage, I is current, and R is resistance, we know that the voltage drop across a resistor is directly proportional to its resistance. Therefore, the bulb with the greater resistance (60-watt bulb) will have a greater voltage drop compared to the bulb with the lower resistance (120-watt bulb).

In conclusion, the filament in the 60-watt bulb has greater resistance and will experience a greater voltage drop when both bulbs are connected in series to a 120V source.

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The amount of charge on an electron is a fundamental concept in physics and chemistry. In short, the charge on an electron is a fundamental unit of electric charge in physics, and is equal to -1.602 x 10^-19 coulombs.

To understand the charge on an electron, it's important to first understand the concept of electric charge. Electric charge is a property of subatomic particles that determines their ability to interact with electromagnetic fields. Electric charge can be positive or negative.

Electrons are subatomic particles that have a negative charge. The charge of an electron is considered to be the basic unit of electric charge in physics. In other words, the charge on an electron is used as the reference point for all other charges. The charge of an electron is equal to -1.602 x 10^-19 coulombs.

This value was determined through experiments and is considered to be a fundamental constant of nature. The charge of an electron is an important value in many calculations and measurements in physics and chemistry, such as in determining the behavior of atoms and molecules in chemical reactions.

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Answer:

the advantage gained by the use of a mechanism in transmitting force specifically : the ratio of the force that performs the useful work of a machine to the force that is applied to the machine.

Explanation:

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device trades off input forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.

Answer:

1.875 joules

Explanation:

K.E=1/2 mv²

K.E=1/2 0.15×5²

K.E=1.875 joules

Answer:mass

Explanation: