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A 1200-kg car rolling on a horizontal surface has speed = 65km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.3m.
What is the spring stiffness constant of the spring?
A voltage of 14 V is placed on a capacitor with C = 103 pF (picofarads). How much energy is stored in the capacitor
Calculate the absorbed dose in Gy to the skin of a person which receives 1500 ergs/gm of beta radiation from a cloud of radioactive krypton-85 gas.
One end of a metal rod is in contact with a thermal reservoir at 691 K, and the other end is in contact with a thermal reservoir at 105 K. what is the change in entropy of the rod
A car is traveling at 44.0 km/h on a flat highway. what is the minimum distance in which the car will stop
A spherical conductor with radius 2.00 cm is centered on the origin and holds charge q1=-250 nC, Find the surface charge density a(charge per area) on the outside surface of the outer spherical shell
A 50.0-g bullet is shot straight upward with a muzzle speed of 350 m/s. Find the maximum height the bullet can reach
Sketch a graph of maximum kinetic energy, KE max against visible light frequency, v for this experiment Label threshold frequency Vc.
An FM radio station broadcasts an oscillating radio wave, What is the frequency of the oscillations in the radio transmitter
A vacuum diode consists of a cylindrical cathode of radius 0.05cm, mounted coaxially within a cylindrical anode 0.45 cm in radius. Find its speed when it strikes the anode
Find the drift velocity of conduction electrons in a gold wire of diameter 2.88 mm when a current of 0.123 A flows in it
While moving down the track at 10.0 m/s, you uniformly accelerate to 32.0 m/s in 10 s. Illustrate what is the average net force that you have applied to the car during the 10 s interval?
A gymnast with mass m1 = 43.0 kg is on a balance beam that sits on (but is not attached to) two supports. What is the force the left support exerts on the beam
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