Answer:
The value is
Explanation:
From the question we are told that
The wavelength is 
The velocity is 
The mass of electron is 
Generally the energy of the incident light is mathematically represented as

Here c is the speed of light with value
h is the Planck constant with value 
So

=> 
Generally the kinetic energy is mathematically represented as

=> 
=> 
Generally the ionization energy is mathematically represented as

=>
Hey!
Transmission light is the passage of light through a medium. Hence, the right answer must be option A.
Hope this helps :)
To solve the exercise it is necessary to apply the equations necessary to apply Newton's second law and the concept related to frictional force.
An angle of 30 degrees is formed on the vertical at an applied force of 2.3N
In this way the frictional force, opposite to the movement will be given by

where,
Kinetic friction constant
N = Normal Force (Mass*gravity)
The friction force is completely vertical and opposes the rising force of 2.3 N. The Normal force acts perpendicular to the surface (vertical) therefore corresponds to the horizontal component of the applied force.
The ascending force would be given by

As the block is moving upward, the friction force acts downward, also its weight acts downward. We can have


Considering the horizontal force the normal force on the block must be balanced by the horizontal component of pishing foce


Then the frictional force




Therefore the coefficient of kinetic friction is 0.26
Answer:
1. Momentum is conserved in the collision.
Explanation:
1. Which statement best describes this collision as compared to other types collision?
a. The colliding bodies do not stick together
b. Kinetic energy is conserved in the collision
c. Momentum is conserved in the collision. True
d. None of the statements describe the collision.
e. The colliding bodies stick together.
The questions 2, 3 and 4 are not completed.
Answer:

Explanation:
According to the newton's second law of motion we can apply F=ma hear
Force = mass * acceleration
(assume the piano is moving left side )
←F = ma
