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One end of a string 7.8 m long is moved up and down with simple harmonic motion at a frequency of 72.0 Hz. The waves reach the other end of the string in 0.34 s. What is the wavelength of the waves on the string?
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. What is the magnitude of the impulse that acts on the block of wood
A golf ball of mass 0.045 kg is hit off the tee at a speed of 32m/s. Find the average force exerted on the ball by the golf club
A 1 kg ball is attached to a 2 m long piece of very light string and suspended in such a way that it can freely swing and it passes just above the ground. completely describe the motion of the two masses after the 1 kg ball is released
A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. What is the electric-field energy stored in the capacitor
a partice moves along the path y=-0.090x^6(-7)meters with a constant speed of 4 m/s. assume dx/dt>_0. Determine the cartisian components of velocity and acceleration at x= - 2m
A particle leaves the origin with an initial velocity v(bold)=2.4m/s xhat, How far does the particle move in the x direction before it turns around
Find the peak magnetic field in an electromagnetic wave whose peak electric field is 200N/C
Establish the initial volume of the gas . What is the magnitude of normal force that each brake pad applies to the rim.
A 1.2µF capacitor is charged to a potential difference of 11.0V. The wires connecting the capacitor to the battery are next disconnected from the battery and connected across a second, initially uncharged, capacitor. The potential difference across t..
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, An elephant has legs that stretch 2.3 m from its shoulders to the ground. How much time is required for one leg to swing forward after completin..
an 1800 kg car is moving at 14 m/s slows to 8.0 m/s in 4.4 s. Use the impulse momentum theorem to find the magnitude of the force on the car
A 1.0-cm-thick layer of water stands on a horizontal slab of glass. What is the ray's direction of travel in the glass
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