The new rotational speed of the combined system is 32 rad/s
<u>Explanation:</u>
Given-
Moment of Inertia, I = 8 kg m²
speed of rotation, ω = 4 rad/s
Mass of the lump = 1 kg
distance = 1 m
New rotational speed = ?
We know,
When the lump is dropped on the rotating disc then the angular momentum remains conserved.
Angular Momentum of the disc, Lₐ = Iω
Angular momentum of the lump, L ₓ = mvR
Since the angular momentum remains conserved,
Lₐ = Lₓ
8 X 4 = 1 X v X 1
New rotational speed, v = 32 rad/s
Therefore, the new rotational speed of the combined system is 32 rad/s.
Answer:
B
Explanation:
If the light is pointing down ,and then hits a surface of a 60 degree angle, then the direction will be away from the light since the light is touching a surface that is flat of a 60 degree angle then it will reflect off of it Perpendicular.
Answer:
Binding energy
Explanation:
The energy required to bind the nucleus is called binding energy.
Binding energy is equal to the product of mass defect and square of velocity of light.
Mass defect is the difference of mass of neucleons and the mass of atom.
Answer:
Planck postulates that the energy exchanges between matter and radiation do not take place in continuous manner but by discrete and indivisible quantities or quanta of energy. He then shows that the quantum of energy must be proportional to the frequency ν of the radiation. (1.1) where h is known as the Planck’s constant.
Explanation:
Answer:
c.they have opposite charges.
Explanation:
because the protons have a positive charge and the neutrons have no charge.