Answer:
The angular speed of the rod is 
Explanation:
The final kinetic energy is:

Clearing vf:

The conservation of angular momentum before and after collision is:

Clearing w:

Answer:
acceleration
Explanation:
Even though the initial and final speeds are the same, there has been a change in direction for the object
Superposition is a principle in physics. Applied to waves, it states that the amplitude of two superposed waves is the sum of the amplitudes of the two individual waves. Then the resultant amplitude of these two waves is 4 cm + 3 cm = 7 cm.
Answer:
Fraction of engine is 0.23
Explanation:
Given Data
m=700 kg
v=2.5 m/s
Fraction=?
Solution
Work done against gravity is given as
P=Fv
where F=mg
So
P=mgv
P=(700kg)×(9.8m/
)×(2.5m/s)
P=17.15 kW
To find Fraction

Time , Work, Horsepower
Explanation:
In General, Power is defined as rate of doing work in physics.
1.) By work and Time, we can calculate power as follows,
Power = Work done per unit Time
= Work done / time
2.) From Horsepower we can directly get the power.
Horsepower (hp) is a unit to measure the power, or the rate at which work is done, usually in the output of engines or motors. There are many types of horsepower. Two common ways of defining horsepower is being used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts.