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A cord with a mass of 500g is tied between two supports. The tension in the cord is 35N and it takes a wave 0.55s to travel from one end to the other. How long is the cord?
An electron with kinetic energy 3.90 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 12.0 cm. find the frequency of circling
Migrating geese tend to travel in straight-line paths at approximately constant speed. How far is the goose from its original position
A puck is sliding without friction on the ice at a speed of 2.48 m/s. Find the speed and direction of the second puck after the collision
You have a cylindrical cup of water that springs a leak 5 cm below the surface of the water. What is the velocity of the water coming out of the hole
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Suppose that only static friction supplies the centripetal force, & find the radius r of the tyre.
Write down an expression for the efficiency of the air cart bumper in terms of the initial and final kinetic energy of the cart. What defines a collision as elastic or inelastic.
A convex Lens of focal length 18 cm is used as the magnifying glass. At what distance from a tiny insect should you hold this lens to get a magnification of +3.00.
A spaceship(Mo = 10,000 kg & Lo = 42m) is observed to be 42.2m long while traveling towards earth Determine the speed of the space ship. Determine the radio frequency emitted by the ship
You are designing a pendulum clock whose period can be adjusted by ±10% by changing the length of the pendulum. Determine the range of change of length which provide this flexibility in the period
A parallel plate capacitor with a plate area of .8m^2 seperated by a .6mm mica sheet. The energy stored in the capacitor is
Since the vehicles stick together after the collision and take the direction of the large truck (greater momentum), I guessed that the small car would have a greater change in kinetic energy.
Two astronauts, each having a mass M are connected by a length of rope of length d have a negligible mass. They are isolated in space, What is the final angular speed of the astronauts
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