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Assuming dissipative forces can be ignored, how fast will an empty barrel with a radius of 57 cm be moving after traveling 24 m down in incline plane with a 30o slope? Assume the barrel is initially at rest and that its moment of inertia can be approximated as a hollow cylinder rotating about its axis: Icylinder=MR2. Your answer should be given to a tenth of a m/s.
A power of 1 horesepower is equivalent to 746 W. What is the power output in horsepower of an electric motor that draws acurrent of 4 A at 120 V and is 80 percent efficient
A trough is 5 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x10 from x=1 to x=1. The trough is full of water. Find out the amount of work in foot-pounds required to empty the t..
A 4.00mm -tall object is 27.0cm from the center of a silvered spherical glass Christmas tree ornament 6.00cm in diameter. What is the position of its image
A bullet of mass m = 25 g is fired into a wooden block of mass M = 4.5 kg. The block is attached to a string of length 1.5 m. The bullet is embedded in the block, causing block to then swing.
A potter's wheel (a solid, uniform disk) of mass 6.0kg and radius 25cm spins about its central axis with an angular speed of the wheel is 15rpm. Find the new angular speed of the system
A 2 kg projectile is shot straight up with initial velocity v0= 50 m/s. find the Maximum value of the gravitational potential energy
An electric field of intensity 3.4 kN/C is applied along the x-axis. compute the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true.
a 100 liter meteorological balloon is filled with helium at stp conditions 25oc and 760 mm hg. what will its volume
An electron is released from rest at a perpendicular distance of10.8 cm from a line of charge on a very long nonconducting rod.That charge is uniformly distributed, with 8.1 μC per meter.What is the magnitude of the electron's initial acceleration..
Two cars are each traveling at 27.0 m/s, and they are approaching each other. What frequency of is heard by the driver of the other car
A projectile is fired in such a way that its horizontal range is equal to 14 times its maximum height. What is the angle of projection
Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead, What is the power loss due to resistance in the line
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