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A tennis player standing 12.2 mfrom the net hits the ball at 3.60°above the horizontal. To clear the net at the apex of itstrajectory, the ball must rise at least 0.335 m. If the ball just clears the net, how fast was the ball moving when it left the racquet?
Certain stars at the end of their lives are thought to collapse combining their protons and electrons together to form a neutron star. Such a star could be thought of as a giant atomic nucleus.
A three-picket fence (mass = 406 grams) on a glider is pulled by a constant force along a horizontal frictionless surface. Find the magnitude of the constant force in Newtons
A metal bar is used to conduct heat. When the temperature at one end is 100 C and at the other is 20 C, what will be the rate of heat transfer
Two cars traveling with the same speed move directly away from one another. What is the speed of the cars
mass, 0.057 kgs, driving force F0 = 8.9 N and linewidth 48 radians/second, has its damping constant, b, changed, Determine the new damping constant,b
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.94 m, 5.13 m) while a constant force acts on it. How much work is done by the force on the coin during the displacement
An electron is placed between two parallel plates that are separated by 2.2 cm and have a potential difference of 1000 V between them. What is the acceleration of the electron
Some good estimates about the human body can be made if it is assumed that we are made mostly of water. estimate the number of water molecules in that person
When pulling a mass hanging from a spring at a constant rate down then releasing it so it bobs up and down, what is its maximum amount of kinetic energy
A convex mirror has a focal length of -20 cm. What is the position of the resulting image in cm if the image is upright and one-fourth the object size
A meteoroid is speeding throughout the atmosphere, travelling east at 16.80 km/s while descending at 13.60 km/s. What is its speed in km/s.
A wheel accelerates from rest to 12 rad/s at a rate of 78 rad/s^2. Through what angle (in radians) did the wheel turn while accelerating
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