Question

An object with a charge 7 C and a mass 0.3 kg
accelerates from rest to a speed of 13 m/s.
Calculate the kinetic energy gained.
Answer in units of J
Through how large a potential difference
did the object fall?
Answer in units of V

Answer 1

For the first question I have the answer as 25.35 I just don't know how to get the second question down :/

Answer 2

@Shane_B

Answer 3

Ok, sorry. Several tabs going.

Yes, the first part is correct...let me think about the second one for moment

Answer 4

OK, this is the same equation as before.

\[\Delta PE=q_0\Delta V\]Plug in the values you know to get:\[25.35J=(7C)\Delta V\]Now just solve for delta V (change in potential) to get your answer.

Answer 5

So 3.621428571

Answer 6

Yea...just adjust your answer for significant figures and you're done

Answer 7

Basically 3.6V

Answer 8

Oh okay thanks sooo much!!

Answer 9

np :)