3 years ago

PLEASE HELP ASAP!!!!!!!!!!

Physics

1 answer:

Marianna [84]3 years ago

7 0

Hey,

I think the answer's are 1,3

Hope this helpss

~Girlygir101~

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You can change the momentum of an object by giving the object more force or less force.

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Graph C

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When the distance between two charges is halved, the electrical force between them?

Llana [10]

If the distance between two charges is halved, the electrical force between them increases by a factor 4.

In fact, the magnitude of the electric force between two charges is given by:
$F= k \frac{q_1 q_2}{r^2}$
where
k is the Coulomb's constant
q1 and q2 are the two charges
r is the separation between the two charges

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the magnitude of the force changes as follows:
$F'=k \frac{q_1 q_2}{r'^2}=k \frac{q_1 q_2}{( \frac{r}{2})^2 }=k \frac{q_1 q_2}{ \frac{r^2}{4} } =4k \frac{q_1 q_2}{r^2}=4 F$
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3 0

3 years ago

PLEASE HELP ME ASAP!!!!!!!!!

NNADVOKAT [17]

Answer:

letter C. velocity hope this helps

7 0

3 years ago

Look at the velocity versus time graph below. What is the magnitude of the displacement of the object after it travels for three

Elza [17]

Answer:

C. 12m

Explanation:

$veocity = \frac{displacement}{time}$

from the graph v = 4m/s and t = 3 s

d = vt = 4 × 3 = 12 m

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3 years ago