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A woman with a package in her hand is riding in a hot air balloon which is climbing at a constant speed of 8.0 m/s. Holding the package out over the edge of the gondola, she releases it at the instant that it is 96 m above the ground.
a. How long does it take for the package to hit the ground?
b. How fast is the package going the instant before it hits the ground?
A circular area with a radius of 7.80cm lies in the x-y plane. What is the magnitude of the magnetic flux through this circle due to a uniform magnetic field B = 0.229T that points in the +z direction
Evaluate maximum altitude?
A proton has a velocity of v ?= (2.00x10^7 m/s)i ? when it encounters a magnetic field B ?= (0.0200T)j ?. What is the radius of the circular path the proton
A spherical water drop 2.6 ?m in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 3800 N/C. How many excess electrons does it have
A 9.7 g object moving to the right at 11cm/s makes an elastic head-on collision with a 14 gram object moving in the opposite direction at 47 cm/s
A circuit consists of a resistor and a capacitor in series with an ac source that supplies an rms voltage of 240 V. What is the average power supplied by the source
The velocity of a boat with respect to the shore is 2 meters/second. The velocity of the water with respect to the shore is 1 meter/second. What is the distance traveled by boat after 3 minutes if the boat is traveling in the opposite direction of..
The heating coil of a hot-water heater has a resistance of 20.0 and operates at 210 V. If electrical energy costs $0.080/kWh, what does it cost to raise 290 kg of water in the tank from 15 °C to 74° C.
A wave traveling in the +x direction has an amplitude of 0.421 m, Write the equation of the wave
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
A small round solid object beta equals 3/4 of mass m and radius r is released from rest at height h on a circular loop track of radius R. The objects rolls without slipping and the radius of the object is much less
A 0.550 {\rm kg} glider on an air track is attached to the end of an ideal spring with force constant 458 {\rm N}/{\rm m}; Compute the total mechanical energy of the glider at any point in its motion
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