Answer:
11.56066 m/s
Explanation:
m = Mass of individual
v = Velocity of individual = 13.4 m/s
g = Gravitational acceleration = 9.81 m/s²
v' = Velocity of the individual after dropping
At the surface, kinetic and potential energy will equalize

The cliff's height is 9.15188 m
Define fall height as h' = 2.34 m

The person's speed is 11.56066 m/s
Electrons are present in all matter. The identification and analysis of cathode rays indicated their nature as subatomic particles, marking the first discovery of electrons. This finding became instrumental in explaining chemical bonds, largely due to the relative ease with which electrons move between atoms.
Answer:
Explanation:
Provided:
The trolley, with mass M, is allowed to roll freely without friction.
The coefficient of friction between the trolley and mass m is
.
A force F is applied to mass m.
The acceleration of the system is

The frictional force will counterbalance the weight of the block.
The frictional force is 





I do not agree. Many materials may fluoresce when exposed to ULTRAVIOLET light, not in microwaves.:)