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Troyanec [42]
3 years ago
13

Choose the correct statement about the acceleration of the car.

Physics
1 answer:
brilliants [131]3 years ago
4 0

Answer:

Whats the question/word problem or where is the graph (if included) representing this problem?

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How does the speed of an object relate to the energy of the object
Ann [662]

Answer:

Increasing the speed of an object decreases its motion energy. Increasing the speed of an object increases its motion energy. Increasing the speed of an object does not affect its motion energy. Whether or not its motion energy is affected depends on how much its speed was increased.

Explanation:

7 0
3 years ago
You want to estimate the height of the Empire State Building. You start at its base and walk 15 m away. Then you approximate the
MatroZZZ [7]

Answer:

429 m

Explanation:

In this exercise you are suppose to simulate a right triangle, the catheti are the distance you walked and the height of the empire state building.

tan(88) = (height) /(distance you walked)

28.64 = height / 15

height = 429 m

8 0
3 years ago
In an incline projection the horizontal motion is uniform motion (vx)= constant why?​
svet-max [94.6K]

Answer:

it is constant because there is not any force that oppose the horizontal motion

but the vertical velocity is not constant because there is a gravitational force that oppose the motion .

5 0
3 years ago
What are 5 uses of reflection?
Gre4nikov [31]
<span>here u go!
fiber-Optics
Mirrors
Sonar
Radar
Study of seismic waves </span>
3 0
3 years ago
Read 2 more answers
A mountaintop is a height y above the level ground. A woman measures the angle of elevation of the
Kamila [148]
Refer to the diagram shown below.
We want to find y in terms of d, φ and θ.

By definition,
tan (\theta) =  \frac{y}{x} \\\\ tan( \phi) = \frac{y}{x-d}

Therefore
y = x tan(θ)                   (1)
y = (x - d) tan(φ)           (2)

Equate (1) and (2).
(x - d) \, tan(\phi) = x \, tan(\theta) \\ x[tan(\phi) - tan(\theta)] = d \, tan(\phi) \\ x= \frac{d tan(\phi)}{tan(\phi)-tan(\theta)}

From (1), obtain the required expression for y.

Answer:
y= \frac{d \, tan(\phi) \, tan(\theta)}{tan(\phi)-tan(\theta)}

7 0
3 years ago
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