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mihalych1998 [28]
3 years ago
9

PLS HURRY

Physics
1 answer:
Readme [11.4K]3 years ago
7 0

Answer:

The second one is the answer

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A car traveling south is 200 kilometers from its starting point after 2 hours. What is the average velocity of the car? (OP A. 1
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Answer:

A

Explanation:

take note that v=d/t (velocity is distance over(divided by) time, so in this case it would be 200 (distance) divided by 2 (time)

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3 years ago
If a rock falls from a cliff, at what point are its kinetic energy and its potential energy the same? Ignore air resistance.
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The gravitational potential energy it had from being above the ground is converted to kinetic energy as the rock falls. As kinetic energy increases, the velocity of the rock will also increase.

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6 0
2 years ago
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7. A car is travelling along a road at 30 ms when a pedestrian steps into the road 55 m ahead. The
trasher [3.6K]

Answer: Car collide with man

Explanation:

Given

Speed of car is u=30\ m/s

Distance of the man from the car is s=55\ m

Reaction time t_r=0.5\ s

Rate of deceleration a_d=-10\ m/s^2

Distance traveled in the reaction time d_o=30\times 0.5=15\ m

Net effective distance to cover d=55-15=40\ m

Distance required to stop the car

\Rightarrow v^2-30^2=2(-10)(s)\\\Rightarrow 0-900=-20s\\\Rightarrow s=45\ m

Require distance is more than that of net effective distance. Hence, car collides with the man.

6 0
3 years ago
What are two components that make up force?
Sveta_85 [38]
The answer is mass and acceleration
6 0
4 years ago
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The moon is not seen at all on the new moon.why???​
tino4ka555 [31]

<u>The moon is not seen at all on the new moon because:</u>

The moon itself doesn't make a light, it reflects sunlight. At the point when the moon lies between the Earth and the Sun, it is just the posterior of the moon that is light by the Sun. In this circumstance, the side of the moon confronting the Earth can't mirror any light whatsoever and seems dull.  

The distinction between another moon and a sunlight based over-shadowing is during a sun oriented obscuration, the moon is actually in the position to completely obstruct the sun during the day.

5 0
3 years ago
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