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A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the ball take to hit the ground after it reaches its highest point? (d) What is its velocity when it returns to the level from which it started?
A motor rotating a gringing wheel which is 5m in radius, isrotating at 60 rev/min. What is the initial speed of the wheel
A stroboscopic photo of a club hitting a golf ball, such as the photo shown in the figure below, was made by Harold Edgerton in 1933. find the average force exerted by the club on the ball
A conducting sphere with an inner insulating sphere inside of it, carries a total charge of 5 nC. The charge within the inner insulating sphere is -5 nC, find the charge on the outer surface of the conducting shell
x = 2 + 3t - t^2, Where x is in meters and t is in seconds, Determine At the time is the object at rest
A particle moves along the x axis. It is initially at the position 0.210 m, moving with velocity 0.090 m/s and acceleration -0.340 m/s2. Find its velocity at the end of this time interval
A current density of 6.00 multiplied by 10-13 A/m2 existsin the atmosphere at a location where the electric fieldis 70 V/m. Calculate the electrical conductivity of the Earth's atmosphere in this region.
bones and muscles a patient in therapy has a forearm that weighs 20.5 n and that lifts a 112.0-n weight. these two
A 40.3-cm diameter disk rotates with a constant angular acceleration of 2.50 rad/s2. Find the linear velocity and tangential acceleration of P at t = 2.30 s
A spaceship moving away from the Earth at a velocity v1 = .75c with respect tot he Earth, What is the velocity of the rocket with respect to the Earth
A string is wound around a metal wheel that is free to spin on a frictionless pivot. A hanging mass is connected to the other end of the string. What is the initial velocity of the hanging mass
A disk-shaped merry-go-round of radius 2.03m and mass 185kg rotates freely with an angular speed of 0.671rev/s. What is the final angular speed of the merry-go-round
Consider an athlete who jumps a horizontal distance of 9m after reaching a maximum height of 1.5m. What was the takeoff speed v0 of the athlete
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