We need a system to use those air vibrations to push against the surface of the inner ear fluid.
The top of the trajectory is the point where it changes from rising to falling. At that exact instant, its vertical speed is zero.
Answer:
A. investigates the overall structure and history of the Universe.
Explanation:
Astronomy is the branch of natural science that studies the objects of a celestial nature.
Cosmology is a part of astronomy that examines the origin and the how the universe changes with the passage of time. The model which is widely accepted as how the universe came into being is the Lambda-CDM model.
According to the Lambda-CDM model the universe consists of cold dark matter, matter and dark energy.
Answer:
When the piston is pulled up, air gets sucked into the pump through the inlet. The pump chamber depressurizes as it fills with air. When the piston is forced down, the air becomes compressed and closes the inlet. Then the air flows out from the outlet
Answer:
The force exerted by the ball on the bat has a magnitude of 100 N and its direction is exactly opposite to that of the force exerted by the bat on the ball.
Explanation:
Recall that Newton's third law tells us that : "For every action, there is an equal and opposite reaction."
Therefore if the bat acts on the ball with a force of 100 N, the ball acts on the bat with a similar magnitude of force (100 N) but direction opposite to the original force.
![F_{ab} = -\,F_{ba}](https://tex.z-dn.net/?f=F_%7Bab%7D%20%3D%20-%5C%2CF_%7Bba%7D)