3 years ago

A basketball rolls down a hill until it comes to a stop in a ditch

Physics

2 answers:

tester [92]3 years ago

8 0

Answer:

1st law.

Explanation:

dmitriy555 [2]3 years ago

3 0

A :-) the first law of motion -
The first law of motion states that a object will be at motion or rest until a unbalanced force is applied on it.

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Answer:

Explanation:

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b )

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c )

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Read 2 more answers

two negative charges that are both -3.0 C push each other apart with a force of 19.2 N how far apart are the charges

Hoochie [10]

The electrostatic force between two charges q1 and q2 is given by
$F=k_e \frac{q_1 q_2}{r^2}$
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If we use F=19.2 N and q1=q2=-3.0 C, we can find the value of r, the distance between the two charges by re-arranging the previous formula:
$r= \sqrt{k_e \frac{q_1 q_2}{F} }= \sqrt{ 8.99 \cdot 10^9 N m^2 C^{-2} \frac{(-3.0C)^2}{19.2 N} } =6.49 \cdot 10^4 m=64.9 km$

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3 years ago