Calculate the work performed by an ideal carnot engine as a cold brick warms from 150 k to the temperature of the environment, which is 300 k. (use 300 k as the temperature of the hot reservoir of the engine). the heat capacity of the brick is c = 1 kj/k.

57.94415 kJ

Explanation:

= Environment temperature = 300 K

= Brick temperature = 150 K

C = Specific heat of brick = 1 kJ/K

Work done is given by

The work performed is 57.94415 kJ

1 a

2 b

3 b

4 d

5 d

6 d

explanation:

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be