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ira [324]
2 years ago
9

Please help :)

Chemistry
1 answer:
melamori03 [73]2 years ago
4 0
The driving thrust of the car produced by the engine is the main forward force. 

The main opposing forces are air resistance (from the wind) and friction (between the tyres and the road)

Since the air resistance + friction = driving force the car moves at a constant speed.
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What is the potential energy of 25kg rock sitting on the cliff with a height of 230m?​
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Answer:

<h2>57,500 J</h2>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

PE = 25 × 10 × 230 = 57,500

We have the final answer as

<h3>57,500 J</h3>

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