Yes you are right, Good Luck!
doesnt the answer is rotary??
Answer:
reproduction
Explanation:
A living thing is characterized by its ability to perform certain functions including growth, irritability, reproduction, respiration etc. Of all these characteristics, REPRODUCTION is key to the survival of an organism's species.
An individual organism will definitely survive without reproducing i.e it will continue living and undergoing its day-to-day activities. However, in order to ensure that its species amongst others survive and not be EXTINCT, it has to reproduce. Reproduction gives rise to more of the same species of organism to form a POPULATION.
Natural frequency is a frequency
when an object hits a s surface and causes ripples or vibrations or disturbance
of their nearby source. An example is throwing a stone to water. When you throw
a stone, it creates a wave around the fallen stone. The water is being
disturbed by the stone and creates a wave. This is a natural frequency.
Answer:
Option B:
The normal force
Explanation:
The normal force does no work as the box slides down the ramp.
Work can only be done when the force succeeds in moving the object in the direction of the force.
All the other forces involved have a component that is moving the box in their direction.
However, the normal force does not, as it points downwards into the ramp. Since the normal force is pointing into the ramp, and the box is sliding down the ramp, we can say that no work is being done by the normal force because the box is not moving in its direction (which would have been the box moving into the ramp)
