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A bobsled slides down an ice track starting (at zero initial speed)from the top of a (n) 199 m high hill. The acceleration ofgravity is 9.8 m/s2. Neglect friction and air resistance and determine the bobsled's speed at the bottom of the hill. Answerin units of m/s.
A sailor strikes the side of his ship just below the surface of the sea. He hears echo of the wave reflected from the ocean floor directly below 9 s later. How deep is the ocean at this point.
An automobile has a mass of 1500 kg, and its aluminum brakes have an overall mass of 6.00 kg. (a) Assume all the mechanical energy that transforms into internal energy when the car stops is deposited in the brakes and no energy is transferred out of ..
A block of mass 2.50 kg is pushed 3.00 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. Determine the work done by the normal force exerted by the table
A juggler throws a ball straight up with some initial velocity. Half a second later, the juggler throws another ball straight up from the same height, then what is the initial velocity of each ball
The resonant frequency of a series RCL circuit is 10.2 kHz. The inductance and capacitance of the circuit are each doubled. What is the new resonant frequency
A radar unit sends out 0.05 microsecond pulses of microwaves whose wavelength is 25 mm. What is the frequency of these microwaves
A solid aluminum cylinder with density equal to 2700 kg/m3 has the weight equal to 0.66 N in air and the apparent weight of 0.22 N when immersed in an unknown liquid. What is the density of this liquid
An air-filled parallel-plate capacitor has plates of area 2.70 cm2 separated by 2.00 mm. The capacitor is connected to a 18.0-V battery. What is the magnitude of the uniform electric field between the plates
You are a professional frontier re-enactor who specializes in making lead shot. To do this you put 2 kg of ice into 2 kg of water, both at 0 C, into an insulated bucket.
A golf ball with a coefficient of restitution of 0.78 is tossed horizontally at 0.9 m/s from a height 1.5 m above the level ground. What is the maximum height of the first bounce of the golf ball
A femur is a bone in the leg whose minimum cross sectional area is about 4.0 x 10^-4 m^2. Find the maximum stress that this bone can withstand
Determine out the magnitude of the average force that the water exerts on the diver. This force is neoconservative.
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