In doing a load of clothes, a clothes dryer uses 19 A of current at 240 V for 29 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

The time taken is 6.80 h.

Explanation:

The expression for the electric energy in terms of voltage and current is as follows;

E= V'It

Here, V' is the voltage, I is the current and t is the time.

Calculate the electric energy of the clothes dryers.

E= VIt

Convert time taken from minutes to hours.

t= 29 min

Put I= 19 A, V= 240 V and .

E= 2204 W

Calculate time which is used to surf the internet on the computer by rearranging the expression for the electric energy.

Put E= 2204 W, I= 2.7 A and V= 120 V.

t= 6.80 h

Therefore, the time taken is 6.80 h.

Explanation:

heat will always be transferred from a warmer object to a cooler object. ... Hot objects cool down because their heat is moving out of them into the cooler objects around them. Relatively cool objects warm up because the heat from other objects around them is moving into the cooler object.