Which is an example of tuition

An AP Physics student is attempting an FRQ problem. They arrive at the following expression for the total distance an object has

zysi [14]

The student's answer is wrong because the unit of his answer is meter - seconds which is not unit of distance (meter).

<h3>Total distance traveled by an object</h3>

The total distance traveled by an object projected upward is calculated from third equation of motion a shown below.

<h3>Equation for the motion of the object</h3>

v² = u² - 2gh

where;

v is final velocity
u is initial velocity
g is acceleration due to gravity

at maximum height, the final velocity is zero, v = 0

0 = u² - 2gh

2gh = u²

h = u²/2g

The equation for the total distance an object has traveled during upward projection is "h = u²/2g".

<h3>Dimension of the student's answer;</h3>

d = (2vh)/g = (m/s x m) / (m/s²) = (m²/s) / (m/s²) = m.s

Thus, the student's answer is wrong because the unit of his answer is meter - seconds which is not unit of distance (meter).

Learn more about distance here: brainly.com/question/2854969

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7 0

2 years ago

A point on a wheel of radius 40 cm that is rotating at a constant 5.0 revolutions per second is located 0.20 m from the axis of

Margarita [4]

Answer:

$197.2 m/s^2$

Explanation:

The centripetal acceleration of a point moving by circular motion is given by:

$a=\omega^2 r$

where

$\omega$ is the angular velocity

r is the distance from the axis of rotation

The point on the wheel makes 5.0 revolutions per second, so the frequency is

$f=\frac{5}{1}=5 Hz$

and the angular velocity is

$\omega=2\pi f = 2\pi (5)=31.4 rad/s$

While the distance of the point from the axis of rotation is

$r=0.20 m$

Substituting, we find the acceleration:

$a=(31.4)^2(0.20)=197.2 m/s^2$

5 0

3 years ago

Read 2 more answers

What is the tendency of an object to resist a change in motion

liubo4ka [24]

The tendency of an object to resist change in its motion is known as inertia

6 0

4 years ago

The idea that the universe began from a single point and expanded to its current size explains a large number of observations, i

jenyasd209 [6]

The United States of green

4 0

3 years ago

Read 2 more answers

Select the sentences about the physical nature of light that are true. Check all that apply. Check all that apply. Blue light ha

Phoenix [80]

Correct options:

- Blue light has a wavelength of 750 nm, the longest wavelength of visible light, and red has a wavelength of 500 nm. --> FALSE. It's actually the opposite: blue light has a wavelength of approx. 500 nm, while red has a wavelength of 750 nm, the longest wavelength of visible light.

- Light is electromagnetic radiation, a type of energy embodied in oscillating electric and magnetic fields. --> TRUE. Electromagntic radiation is a type of transverse waves, consisting of electric and magnetic fields oscillating perpendicularly to each other.

- The units of frequency are distance per second. --> FALSE. Frequency is measured in Hertz (Hz), which corresponds to 1/seconds ( $s^{-1}$ .

- The more closely spaced the waves, that is, the longer the wavelength, the more energy there is. --> FALSE. The energy of an electromagnetic wave is inversely proportional to the wavelength:

$E=\frac{hc}{\lambda}$

that means, the longer the wavelength, the less energy there is.

- Grass appears green because it reflects primarily the wavelength associated with green light and absorbs the others. --> TRUE. The color of the objects as we see them corresponds to the color they reflect, while all the other colors are absorbed by the object.

- Light in a vacuum travels at 3.00×108mph. --> FALSE. The units are wrong: the speed of light in a vacuum is $3.00\cdot 10^8 m/s$ .

- Electromagnetic radiation can be characterized by wavelength, amplitude, and frequency. --> TRUE. Wavelength is the distance between two consecutive crests, amplitude is the maximum displacement of the wave relative to the equilibrium position, frequency is the number of oscillations per second.

- The presence of a variety of wavelengths in white light is responsible for the way we perceive colors in objects. --> TRUE. White light consists of many different colors, and depending on which of them are absorbed/reflected by the objects, we perceive them in different ways.

7 0

4 years ago