Answer:
d) 3 m/s
Explanation:
As we know by equation of continuity

here we have



now from above equation we have


here we have


Answer:
c - the frequency of the waves decreases
Answer:
The body won't move or it will be moving with constant velocity
Explanation:
A body is said to be in mechanical equilibrium if the total force acting upon it is zero and the total torque acting on it is zero.[1] As the net force and torque on a body are zero, it will continue to move in a straight line with constant velocity and rotate with a constant angular velocity. If the velocity of a body in mechanical equilibrium is zero, then it will remain at rest.
This can be easily understood by interpreting the third law of Newton, 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. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.
To solve this problem we will apply the concept related to Angular momentum. Said conservation momentum says that its initial state must be equal to that of the final state, that is,


Here,
I = Moment of Inertia
Angular velocity
Rearranging to find the ratio between the moment of inertia we have,

Replacing,


Therefore the correct option is C.
The answer is B. cyan.
If an object reflects green and blue light we preceive the reflection not as separate colours but a mixture of both aka cyan.
Hope this helps.
r3t40