In doing a load of clothes, a clothes dryer uses 16 A of current at 240 V for 45 min. A personal computer, in contrast, uses 2.7 A of current at 120 V. With the energy used by the clothes dryer, how long (in hours) could you use this computer to "surf" the internet?

Explanation:

Given that,

Current of clothes dryer, I = 16 A

Voltage, V = 240 V

Time, t = 45 min = 2700 s

Current of personal computer, I' = 2.7 A

Voltage, V' = 120 C

Energy used by clothes dryer is given by :

Let t' is the time for this computer to "surf" the internet. Again using formula of energy used as :

So, for 8.83 hours you could use this computer to "surf" the internet.

probably not if net force is zero

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.