The unit for measuring electric power is the
a. volt.
b. ampere.
c. watt.
d. ohm.

(C) Watt

Explanation:

The unity of power is watt

Power is nothing but the rate of change of energy with respect to time

So power is given by , here W is work done and t is time

We know that unit of work done is joule and unit of time is sec

So unit of power is J/sec which is called watt

So option (c) will be correct option

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

3. dark matter

empty space could also be a simple vacuum