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A student has the idea that the total work done on an object is equal to its final kinetic energy. Is this statement true always, sometimes, or never? If sometimes true, under what circumstances? If always or never, explain why.
In an L-R-C series circuit, 305 , 0.401 , and 5.98×10-8 . When the ac source operates at the resonance frequency of the circuit, What is the amplitude of the voltage across the resistor
YOu would like to shoot an orange out of a tree with your bow and arrow. The orange is hanging 5.00 m above the ground. What is the height of the arrow once it traveled the 55 m horizontally
A 1.8 hp electric motor provides a force of 382 N to maintain a constant speed for a long rope attached to a pulley lifting a bucket of coal from a mining shaft
The drawing shows a rectangular block of glass (n = 1.52) surrounded with liquid carbon disulfide (n = 1.63). A ray of light is incident on the glass at point A with a θ =29.0° angle of incidence. At what angle of refraction does the ray leave the gl..
Estimate the time constant in a RC circuit.
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the objectis 1.25 m/s, and its maximum acceleration is 6.89 m/s2.
A 1 m diameter wagon wheel consists of a thin rim having a mass of 9 kg, Determine the moment of inertia of the wagon wheel for rotation about its axis
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 24.0 cm, Calculate the speed of the proton
question when 92.8 v is applied across a wire that is 9.8 m long and has a 0.32 mm radius the magnitude of the current
A 243-g ball falls vertically downward, hitting the floor with a speed of 2.48 m/s, Calculate the magnitude of the change in the ball's momentum
When a surfer rides an ocean wave on her surfboard she is actually riding on. a. a crest that is toppling over. b. a trough of the wave. c. The rest position of the wave. d. A region of rarefaction.
A $100 cart is moving down an inclined plane at 1.30 m.s, The cart collides with a stationary object and rebounds with a speed of 0.970 m/s. What was the change in momentum
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