Final answer:
Power is the rate of doing work and is given by the formula P = W/t. For 800 joules of work done over 10 seconds, the power is 80 watts.
Step-by-step explanation:
The formula for power is P = W/t, where P represents the power in watts, W is the work done in joules, and t is the time in seconds over which the work is done.This formula essentially tells you how much work is done per unit of time. The unit of power in the International System of Units (SI) is the watt (W), where 1 watt is equivalent to 1 joule per second. So, if you have 1 watt of power, it means you are doing 1 joule of work every second. To calculate the power of 800 joules of work done over a 10-second period, you divide the work done by the time. So, P = 800 J / 10 s = 80 W. Thus, the power is 80 watts.