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If the laser light wavelength is 1062 (this corresponds to a Neodymium-YAG laser), and the pulse lasts for 31 picoseconds, how many wavelengths are found within the laser pulse?
Ball at rest in your reference frame has a mass M. A second ball with the same mass is moving with speed v and collides with ball 1, the balls stick together and continue on the same path that the second ball was on.
A coil with an inductance of 1.8 H and a resistance of 6.7 ? is suddenly connected to a resistanceless battery with an ? = 80.0 V. What is the rate at which thermal energy is appearing
Suppose an oxygen molecule traveling at a velocity of 480m/s bounces back and forth between opposite sides of a cubical vessel 0.19 on a side. What is the average force per unit area
A straight 10-cm wire bent at its midpoint so as to form an angle of 90 degrees carries a current of 10 A. What is the magnitude of the magnetic force on this wire
Mike is riding his unicycle of wheel diameter 20 in. Mike rides for 30 m with an initial angular velocity of 0.75 rad/s, What is the unicycle's linear velocity at 30 m?
A spring with spring constant 19 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 2.5 and released. The ball makes 33 oscillations in 15 seconds. What is its utmost speed.
An elevator has mass 670 kg, not including passengers. What is the maximum number of passengers that can ride in the elevator
A 547-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. Find the gravitational force acting on it
A person runs 3.0 miles to the northwest (45 degrees with respect to the WE line), then 3.5 miles south. What is the persons net displacement
Two wheels have the same mass and radius of 4.3 kg and 0.50 m, respectively. One has the shape of a hoop, Find the net external torque that acts on each wheel
A sinusoidally varying voltage is represented by V(t) = (75 V)sin(120?t). What are its frequency and peak voltage
Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
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