Is a Sot an object of height 5cm prod
f = 15Ls.
..
Х
ductivity of a wire of length 200cm, diameter 350
= 200 200
-? A=0.0962
e.
e
.-2010.096
220.961
0:096
fa substance is 3 minutes, what percentage
ntre 2021​

Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?