Explanation:
The efficiency of a heat engine is defined as the ratio of the work output to the heat input into the system.
- It is highly impossible to get an engine that is 100% efficient.
- A heat engine that is 100% efficient suggests that all the heat input into the system is used to do work completely.
- There is no heat loss.
Efficiency = 
x 100
Efficiency has no unit
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Yes, of course! by it's definition the potential energy is an energy that particle have in order to obtain kinetic energy. Or simply an energy to make some movement.
A binomial nomenclature, more commonly referred to as a scientific name.
B) Power
Because Power= Work/time
Answer:
v =3.41 m/s
Explanation:
given,
mass of block 1 = 6 Kg
mass of another block 2 = 4 Kg
coefficient of friction = 0.3
Assuming 6 Kg block is attached to the spring of spring constant 350 N/m
and distance between the two block is equal to 0.5 m
using formula
U = 43.75 J
using conservation of energy
KE = U - f.d
where f is the frictional force acting
v =3.41 m/s
