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A Spring with a spring constant k is hung vertically. A mass m is attached to it and released in such a way that the spring is unstretched upon release. The Mass extends to the maximum spring extension x. determine the following in terms of m,k,and g.
A) Determine X
B) Determine the maximum speed of the mass
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. Sodium is 2.3 eV, What is the stopping potential for the emitted electrons
At the moment of ignition the mass of a rocket is 100 kg. For the first 10 s it burns fuel at the rate of 5 kg/s. find The magnitude of the force developed by its engine
Calculate how much work is done when 5 moles of an ideal gas at27ºC expand is othermally from an initial volume of 1 liter toa final volume of 2 liters.
A nuclear power plant produces an average of 4.90 × 103 MW of power during a year of operation. Find the corresponding change in mass of reactor fuel
A solar concentrating heat exchanger system directs sunlight onto a long straight pipe. The pipe receives heat from sunlight at the rate of 153.616 Btu/hr per foot of length, find the rate of entropy production in this solar concentrator
A section of copper transmission line carries a steady current of 265A and has resistance 0.82 ohem, Ignoring the energy needed to refrigerate the superconductor, how much energy will be saved in one year
Evaluate if the ball clears the crossbar, what is its height with respect to the crossbar when it reaches the plane of the crossbar?
A 58 kg gymnast does a vault. He is traveling at 5.6 m/s just before he lands. He comes to a stop in 0.08 s. What is the average net force acting on him during this time
1200 kg car at velocity 25m/s brakes and stop moving after 40m. What is the coefficient friction between the tires and road
A 14.0 capacitor and a 5.50 inductor are connected in series with an open switch. The capacitor is initially charged to 6.70 What is the angular frequency of the charge oscillations
A jumper in the long jump goes into the jump with a speed of 12.0 m/s at an angle of 20 degrees above the horizontal. How far does the jumper jump.
An 8 g bullet is fired into a 2.5 kg ballistic pendulum and becomes embedded in it. If the pendulum raises a vertical distance of 6cm, compute the initial speed of the bullet.
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