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Two identical masses m are initially at rest, a distance x apart. A constant force F accelerates one of them toward the other until they collide and stick together. What is the (rest) mass of the resulting particle?
a cessna aircraft has a lift-off speed of 120 kmh.a what minimum constant acceleration does the aircraft require if the
A wave is described by y = 0.020 9 sin(kx - ?t), where k = 2.05 rad/m, ? = 3.67 rad/s, x and y are in meters, and t is in seconds, Determine the amplitude, wavelength, frequency and of the wave
How much would a 80.0 kg person weight on Mars, where the acceleration of gravity is 3.93 m/s^2, and on Earths Moon, where the acceleration of gravity is 1.63 m/s^2.
The electric field everywhere on the surface of a thin, spherical shell of radius 0.795 m is of magnitude 852 N/C, What is the net charge within the sphere's surface
An airplane is flying due north at 180 m/s. The Earth's magnetic field has a northward component of 0.3 mT and an upward component of 0.46 mT. what is the motional emf between the wingtips
what is a catapult ? what is the traditional use of a catapult ? when were catapults in greatest use ? what
Jack and Jill ran up the hill at 3.3 m/s . The horizontal component of Jill's velocity vector was 2.0 m/s. What was the angle of the hill? Illustrate what was the vertical component of Jill's velocity?
A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 550 kg. Before a trip, the flywheel is attached to an electric motor, Find the kinetic energy stored in the flywheel
A factory worker pushes a 28.4 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 32degrees below the horizontal. How much work is done on the crate by friction during this displacement
A golf ball is driven from a level fairway. At a time of 4.54 slater, the ball is traveling downward with a velocity of 42.4 m/sat an angle of 20.4° below the horizontal. Neglecting airresistance, calculate the initial velocity (magnitude anddirec..
A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker (without reflecting from the walls) create an intensity level of 75.1 dB. What is the total intensity level
A 0.590-kg slab of granite isheated so that its temperature increases by 7.10° C. what is the specific heat of granite
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