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A customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.31 m. The mug slides off the counter and strikes the floor 1.93 m from the base of the counter.
What was the direction of the mug's velocity just before it hit the floor? (below the horizontal)
The voltage and power ratings of a particular light bulb, which are its normal operating values, are 110 V and 60 W. what is the operating voltage of the bulb
Alpha particles of kinetic energy 5.10 MeV are scattered at 90° by a gold foil. What is the impact parameter
To initiate a nuclear reaction, an experimental nuclear physicist wants to shoot a proton into a ^12 C nucleus. With what speed must the proton be fired toward the target
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 183 MeV, How many nuclei are in the beam
At t = 0, a stone is dropped from a cliff above a lake; 2.2 seconds later another stone is thrown downward from the same point with an initial speed of 48.0 m/s. Find the height of the cliff
A magnetic feild has a magnitude of 1.2x10^-3 T, and an electric feild has a magnitude of a 4.6x10^3 N/C. Both feilds point in the same direction. A positive 1.8μC charge moves at a speed of 3.1 x10^6 m/s in a direction that is perpendicular to bo..
A flywheel with a diameter of 0.510 m is rotating at an angular speed of 178 rev/min. What is the linear speed of a point on the rim of the flywheel
A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 360. When a jet aircraft is taking off, the sound intensity level experienced by the crew member is 91 dB. What would the sound intensit..
A flight attendant pulls her 61N flight bag a distance of 279m along a level airport floor at a constant velocity. The force she exerts is 41N at the angle of 50° above the horizontal.
A 2,500-kg car moving east at 10.0 m/s collides with a 3,000-kg car moving north. Find the speed of the 3,000-kg car before the collision
A man of mass 91 kg drops to a concrete patio from a window 0.63 m above the patio. What is the magnitude of the average stopping force exerted on him by the patio
A ball rolls down a hill. What causes constant acceleration down the hill? What determines how much acceleration there is (is the angle/incline of the hill a factor)
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