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Naily [24]
3 years ago
15

A child pushes a toy car down a hill. The child has a mass of 20 kg. The car has a mass of 1.6 kg and a speed of 7.4 m/s2. When

the car has a gravitational potential energy of 30 J, what is the mechanical energy of the car?
Physics
1 answer:
Andrew [12]3 years ago
5 0

Answer:

The answer is 73.8 J

Explanation:

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Elena L [17]

Answer:

b.Law of conservation of mass

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1. 1. are the charged parts of an atom.
victus00 [196]

Answer:

» e. Electrons and protons

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Electrons are negatively charged and protons are positively charged.

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An electric circuit can have no current when a switch is
Finger [1]

Answer:

Open

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