Answer:
The correct answer is "24 V".
Explanation:
The given values are:
Current,
I = 0.50 A
Resistance,
R = 12 W
As we know,
⇒
On substituting the given values, we get
⇒
⇒
⇒
A student stays at her initial position for a bit of time, then walks slowly in a straight line for a while, then stops to rest
1 answer:
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Answer:
d) v1 = v2 = v3
Explanation:
This can be answered using conservation of energy. We calculate the mechanical energy E=K+U (sum of kinetic and gravitational potential energies) at the original and final points, and impose they are equal.
At the original point we have, for the three balls:
At the final point we have, for the three balls:
Since we have , and
is the same for all balls, then
is the same for all balls, which means that
, the final velocity, is the same for all balls.