A100 ω resistive heater in a tank of water (1kg) increases its temperature from 10°c to 20°c over a period of 1 hour. during this period of time your measurements show that the voltage of the heater was 50v. how much energy is not absorbed by the water and leaves the system into the srroundings? assume constant specific heat and density.

48.52 kJ

Explanation:

Given

Resistance

temperature increases from

Voltage=50 V

Heat given(H)

Where V=voltage applied

t=time

R=Resistance

Heat absorbed by water is

where

m=mass of water

c=specific heat of water

=change in temperature

Therefore  90-41.48=48.52 kJ is not absorbed by water and leaves the system into the surroundings.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles