Answer:
Particle
Explanation:
To understand photoelectric effect the physicists has to view light as a particle and not wave. The wave nature of the light could not explain the phenomenon of photoelectric effect.
Photoelectric effect is emission of electrons from a material when electromagnetic radiation(Light) is incident on it. These emitted electrons are called photoelectrons.
The explain this effect Einstein proposed that beam of light is can not be a wave propagating through space, but a swarm of discrete energy packets, called as photons.
Answer: i think he's done 50% of work
Explanation:
The answer would be Estrogen, because that is a female sex hormone
Answer:
(i) Relative velocity of B w.r.t A= Sum of speeds of trains
=54+90
=144kmph
(ii)Relative velocity of B w.r.t Ground(G)=v
B/G
=−90kmph
v
G
=0
Relative velocity of ground(G) w.r.t B =v
G/B
=v
G
−v
B/G
v
G/B
=0−(−90)
v
G/B
=90kmph
The potential energy on the moon would be 1/6 of the potential energy on Earth
Explanation:
The potential energy of an object is the energy possessed by the object due to its position in a gravitational field, and it is given by
where
m is the mass of the object
g is the strength of the gravitational field
h is the height of the object above the ground
In this problem, the potential energy of the object on the Earth is
On the Moon, the gravity is
Therefore, if the same object (same mass) is placed at the same height 
on the Moon, its potential energy would be
Learn more about potential energy:
brainly.com/question/1198647
brainly.com/question/10770261
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