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A piano wire with mass 2.90g and length 82.0cm is stretched with a tension of 35.0N . A wave with frequency 100Hz and amplitude 1.90mm travels along the wire.
Part A Calculate the average power carried by the wave.
Part B What happens to the average power if the wave amplitude is halved?
A 96N grocery cart is pushed 10m along an aisle by a shopper who exerts a constant horizontal force of 40-N. If all frictional forces are neglected and cart starts from rest, what is the grocery cart's final speed.
In a bicycle race, the leader is travelling with a constant velocity of 11.10 m/s and is 10.0 m ahead of the second-place cyclist. The second place cyclist has a velocity of 9.50 m/s and an acceleration of 1.20 m/s squared. How much time elapses b..
The gravitational acceleration on the Moon is a sixth of that on Earth. The weight of an apple is 1.03 N on Earth. What is the weight of the apple on the Moon
An 0.82 kg bucket full of water is being swung by a rope in a vertical circle of diameter 2.31 m. Compute the least speed a bucket must be moving so that the water doesn't fall out.
Illustrate at what angle should a curve of radius 140 m be banked, so cars can travel safely at 33 m/s without relying on friction?
A 25 g rifle bullet traveling 270 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, find horizontal components of the pendulum's displacement
A plane is flying in the horizontal plane. At time t1 = 0 s with the components of its velocity are vx= 100 m/s and vy = 120 m/s. At time t2= 20 s the components are vx = 80 m/s and vy = 142 m/s.
Dan is gliding on his skateboard at 2.0 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.0 m/s. How fast is Dan going as his feet hit the ground? Dan's mass is 60 kg and the skateboard's mass is 5.0 kg.
A wheel 2.25 m in diameter lies in a vertical plane and rotates about its central axis with a constant angular acceleration of 3.50 rad/s2, find the angular position of the point P
An object is 17 mm in front of a converging lens, and the image is 3 mm behind the lens. What is the focal length of the lens? Reply In mm
What is average kinetic energy of each helium atom
The sun moves in an orbit about the center of the Milky Way Galaxy at a speed of 290 km/s with a radius of 3 x 1020 km. How many stars are in the galaxy
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