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A speedboat is towing a paraglider at a constant speed and height on the end of a light rope of length 30m, which makes an angle q with the horizontal. The forces acting on the paraglider are the vertical lift, L, the horizontal drag, D, his weight, W and the tension in the rope, T.
How to draw a vector diagram to show the object is in equilibrium?
Ken and Kim are skating together on a rink at 3.00 m/s. Ken keeps asking Kim how much she weighs. Annoyed, Kim pushes away from Ken so that she speeds up to 4.00 m/s and he slows down to 2.40 m/s in the same direction. Friction, in the physics sense,..
Suppose your body was able to use the chemical energy in gasoline. How far could you pedal a bicycle at 15 km/hr on the energy in 2.0 gal of gas? ( 1 gal of gas has a mass of 3.2 kg )
A 21 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80.5 N and is directed at an angle of 30° above the horizontal. Determine the coefficient of kinetic friction.
A bug is on the edge of a rotating record player moving toward a light positioned along the edge of record player as well. Determine the accelerations acting on the bug
At a given instant the current and self-induced emf in an inductorare directed as indicated in the figure 30-63. The induced emf is23 V and the rate of change of the current is 24 kA/s; find the inductance in henrys.
The aluminum cable of a high-voltage transmission line carries a current of 600 A. What is the power lost to Joule heating in this cable
How far must it now sail to reach its original destination. find the potential energy of the system.
it is claimed that some professional baseball players can see which way the ball is spinning as it travels toward home
A simple pendulum is made from a 0.60-m-long string and a small ball attached to its free end. how much time elapses before it attains its greatest speed
What is the lowest frequency for standing waves on a wire that is 11.5 m long, has a mass of 120.0 g, and is stretched under a tension of 185.0 N
Cosmonaut Andrei, your co-worker at the International SpaceStation, tosses a banana at you at a speed of 18 m/s. At exactly the same instant, you fling a scoopof ice cream at Andrei along exactly the same path.
the kinetic energy of a particle is equal to the energy of a photon. the particle moves at 4.2 of the speed of light.
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