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

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

explanation:

the masses of the objects and the distance between them