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An air-hockey puck floats across the table and bumps into a second puck, initially at rest. The first puck (mass 0.0250 kg) is moving initially due East at 5.50 m/s. The second puck's mass is 0.0500 kg. Immediately after the collision, the first puck is moving 65.0° North of East and the second pick is moving 37.0° South of East. Find the speeds of both picks after the bump.
The force stretching the D string on a certain guitar is 170 N. The string's linear mass density is 0.006 kg/m, What is the speed of the waves on the string
A rigid tank contains 1.30 moles of an ideal gas. Determine the number of moles of gas that should be withdrawn from the tank to lower the pressure of the gas from 24.5 atm to 4.40 atm. Assume volume of the tank and the temperature of the gas rema..
What's the difference between a rotational and a circular motion and Why does vertically falling rain make slanted streaks on the side windows of a moving auto
An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.55 106 N/m, What was the speed of the car before impact
The figure below shows a mercury barometer. Consider two barometers, one using mercury and another using an unknown liquid. estimate the density of the unknown liquid
How long does it take for amplitude to drop to half its initial value . How long does it take for mechanical energy to drop to half its initial value.
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 3.0 V for 0.95 ms, Find the current that flows during a pulse
The volume flow rate of the water supplied by a well is 1.53 x10-4 m3/s. The well is 31.8 m deep. Find the pressure difference the pump must maintain
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
A charge Q is uniformly distributed along the x axis, what is the electric potential (relative to zero at infinity) at the point, x = 8.0 m, on the x axis,
A proton moving at 7.6 × 106 m/s through a magnetic ?eld of 8.8 T experiences a magnetic force of magnitude 2.5 × 10?12 N. What is the angle between the proton's velocity and the field
Consider the design of a solar-powered alternate power generation infrastructure that could maintain sufficient electrical power to meet current US annual demand.
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