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A 205-kg log is pulled up a ramp by meansof a rope that is parallel to the surface of the ramp. The ramp isinclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is0.900, and the log has an acceleration of 0.800 m/s2. Find the tension in the rope.
a nuclear power plant has an electrical power output of 1000MW and operates with an efficiency of 33%. what is the rise in temperature of the flowing water
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 25 m.
a baseball of a mass 0.173kg is thrown from the roof of a building 30.8m above the ground, with a initial velocity of 13.2m/s at an angle of 74 degrees above the horizontal. what is the max height the ball reaches
A ring is fitted loosely (with no friction) around a long, smooth rod of length L = 0.561 m. The rod is fixed at one end, and the other end is spun in a horizontal circle at a constant angular velocity of ? = 3.57 rad/s. The ring has zero radial velo..
A boat in a storm is subject to a force of 1750 N at 0.00 degrees and 1640 N at 145 degrees. How much of a third force and in what direction must be exerted to make the net force zero
A 518- physics student stands on a bathroom scale in an 846- (including the student) elevator that is supported by a cable. As the elevator starts moving, the scale reads 464. Find the magnitude of the acceleration of the elevator
question1a lunar landing craft approaches the moonrsquos surface. suppose that one-third of itsnbspweight is fuel that
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
if 60 of u.s. petroleum use goes for transportation and 1 of this goes for buses how much oil could be saved per year
a mass m 16 kg is pulled along a horizontal floor with no friction for a distance d 7.9 m. then the mass is pulled up
A 35 g bullet moving at 475 m/s strikes a 4.20 kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 270 m/s. How fast is the bag moving when the bullet exits.
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the total time the blue car is moving
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