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1 year ago

7

A car with a mass of 1000 kg accelerates from 0 to 90 km/h in 10 seconds. a) What is its acceleration? b) What is the net force

on the car?

1 answer:

kompoz [17]1 year ago

3 0

Answer:

v

f=90km/h=25m/s

v_{_{i}}=0v

i=0

t=10\;\mathrm{s}t=10s

m=1000\;\mathrm{kg}m=1000kg

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Imagine that the earth and the-moon have positive charges of the same magnitud. How big isäºthe charge necesary to produce an el

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Answer:

5.7 x 10^12 C

Explanation:

Let the charge on earth and moon is q.

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mass of moon, Mm = 7.35 x 10^22 kg

Let d be the distance between earth and moon.

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3 years ago

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