force= mass x acceleration= 0.2 x 20= 4 N
(N stands for newton btw)
Answer:

Explanation:
d = Slit separation = 0.11 mm
= Angle = 
m = Order = 2
= Wavelength
We have the relation

The wavelength of the light is
.
The correct answer is A. The water at this conditions is in the solid phase. This can be verified by using a phase diagram. A phase diagram is a figure which shows the phases of a certain substance at a specific temperature and pressure.
Answer: Newton's third law
Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
Explanation:
Answer:
We conclude that the required momentum is 80 kgm/s.
Explanation:
Given
To determine
The momentum p = ?
Important Tip:
- The momentum of an object is the product of mass and velocity.
We can determine the momentum using the formula

where
now substituting m = 20 and v = 4 using the equation


kg m/s
Therefore, we conclude that the required momentum is 80 kgm/s.