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What is the definition of the joule in terms of the basic SI units?
A golf club has a lightweight flexible shaft with a heavy block of wood or metal (called the head of the club) at the end. A golfer making a long shot off the tee uses a driver, What is the speed of the club head immediately after the collision
Objective questions based on work, energy, power.
A 0.03 kg (lead) bullet hitsa steel plate and melts and splatters on impact. Assuming that the bullet recieves 80% of the collision energy, at what minimium speed must it travel to melt on impact?
What is the angle between a wire carrying 8.30 A and the 1.20 T field it is in, if 50.0 cm of the wire experiences a magnetic force of 2.80 N, What is the force on the wire
An electromagnetic wave has an electric field amplitude of 320 V/m.
An AC generator consists of eight turns of wire, each having area A = 0.0890 m2, with a total resistance of 11.4 ?. Determine the induced emf and current as functions of time
The index of refraction of crown glass forviolet light is 1.529, while for red light it is 1.509. What is the speed of red light in crownglass
A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. The wire has radius r = 4.3 10-4 m and is made of copper having a density of ? = 8960 kg/m3. Calculate the final speed of the wire as it leaves th..
A uniform meter stick of mass M has ahalf-filled can of fruit juice of mass m attached to oneend. Calculate the mass of the can of juice
a revolving car wheel has a radius of 15m and a mass of 3 X 10^4 kg. what torque needs to be applied to stop the car wheel in 15 sec
A loud speaker diaphragm is producing a sound for 2.5s by moving back and forth in simple harmonic motion. How many times does the diaphragm move back and forth
A 1kg block at the bottom of a ramp is on a compressed spring with the spring constant k=300N/m. what is the initial acceleration of the block up the ramp
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