Answer:
50 W
Explanation:
Power: This can be defined as the rate at which work is done or it is the rate at which energy is used. The S.I unit of power is Watt (W).
The formula for power is given as
P = W/t ................................ Equation 1
Where P = amount of power used by Jenna, W = Work done by Jenna, t = time taken to do the work.
Given: W = 150 J. t = 3 Seconds,
Substitute into equation 1
P = 150/3
P = 50 Watt.
Hence Jenna uses 50 W of power
Answer:
50 W
Explanation:
By definition, power is the rate at which work is done or of transferring heat, i.e. the amount of energy transferred or converted per unit time. Its unit is Watt or J/s.
Mathematically,
Power = workdone/time
Given:
Workdone = 150 J
Time = 3 s
Power = 150/3
= 50 W.
