A heat engine uses thermal energy that flows from a heat source with a temperature of 325k to a cold sink that has the temperature of 135k what is the efficiency of the heat engine

Efficiency = 58.5%

Explanation:

Given the following data;

Temperature of the cold sink, Tc = 135K

Temperature of the hot sink, Th = 325K

The efficiency of an engine is given by:

Efficiency = [1 - (Tc/Th)] * 100

Where;

Substituting into the equation, we have;

Efficiency = [1 - (135/325)] * 100

Efficiency = (1 - 0.4154) * 100

Efficiency = 5.85 * 100

Efficiency = 58.5%

Therefore, the efficiency of the heat engine is 58.5 percent.

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

hope this : )