• ### Why is loudspeaker a motor not a generator? Could anyone give reasoning?

2 answers · Physics · 1 year ago
• ### Is loudspeaker a motor or a generator?

7 answers · Physics · 1 year ago
• ### Physics question?

what is an impulse in physics? Could anyone explain it in detail with some examples. Thanks.
what is an impulse in physics? Could anyone explain it in detail with some examples. Thanks.
1 answer · Physics · 1 year ago
• ### Newton's work and satellite motion?

A satellite has a period of 90 minutes around the Earth. Using Newton’s Law of Gravitation and explain how the altitude of the satellite can be found and calculate the value given that the Earth’s radius is 6380km.
A satellite has a period of 90 minutes around the Earth. Using Newton’s Law of Gravitation and explain how the altitude of the satellite can be found and calculate the value given that the Earth’s radius is 6380km.
1 answer · Physics · 1 year ago
• ### Physics question (Centripetal force + motion of satallites)?

An ice skater coasts around a uniform circular track at constant speed. Compare and contrast the motion of the skater with the motion of a satellite orbiting the Earth. Thanks.
An ice skater coasts around a uniform circular track at constant speed. Compare and contrast the motion of the skater with the motion of a satellite orbiting the Earth. Thanks.
1 answer · Physics · 1 year ago
• ### Projectile motion question?

A football player kicks a football that has a “hang time” of 4.5s and is caught 46m away. If the ball leaves the players foot at a height of 1.5m and is caught overhead at a height of 2.1m, find the ball’s initial velocity.
A football player kicks a football that has a “hang time” of 4.5s and is caught 46m away. If the ball leaves the players foot at a height of 1.5m and is caught overhead at a height of 2.1m, find the ball’s initial velocity.
2 answers · Physics · 2 years ago
• ### Projectile motion Question?

Novak has match point in the Wimbledon final and attempts to serve an ace. He serves the ball at 23.6m/s horizontally, and the ball leaves his racquet 2.39m above the court surface. If net is 12m away and has a height of 0.91m, will Novak’s serve clear the net?
Novak has match point in the Wimbledon final and attempts to serve an ace. He serves the ball at 23.6m/s horizontally, and the ball leaves his racquet 2.39m above the court surface. If net is 12m away and has a height of 0.91m, will Novak’s serve clear the net?
1 answer · Physics · 2 years ago
• ### Projectile motion question?

Novak has match point in the Wimbledon final and attempts to serve an ace. He serves the ball at 23.6m/s horizontally, and the ball leaves his racquet 2.39m above the court surface. If net is 12m away and has a height of 0.91m, will Novak’s serve clear the net?
Novak has match point in the Wimbledon final and attempts to serve an ace. He serves the ball at 23.6m/s horizontally, and the ball leaves his racquet 2.39m above the court surface. If net is 12m away and has a height of 0.91m, will Novak’s serve clear the net?
2 answers · Physics · 2 years ago
• ### Explain how the movement of elevators in tall buildings sometimes make you feel "heavy" or "light"?

1 answer · Physics · 2 years ago