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A box of mass 50 kg starts from rest to slide down a ramp that makes an angle of 10.7 degrees with respect to the horizontal. 6.3 seconds later, it has covered a distance of 3.39 meters. What is the coefficient of kinetic friction?
Two charges, q1 and q2, are separated by a distance, r, and exert a force, F, on each other. What will the new force be if:
A block of mass 2.90 kilogram is pushed 2.60 meter along a frictionless horizontal table by a constant 16.0 Newton force directed 27.0 degree below the horizontal. Find the work done on the block by the applied force
A massless frictionless pulley, an ideal string, and two masses (m1 = 2.50 kg and m2 = 4.00 kg) are connected together, What is the magnitude of the tension force in the string
List and explain briefly similarities and differences between the electric force between two charges and the gravitational force between two masses.
Satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 3.70 104 s. What is the speed at which satellite travels.
The distance between the endpoints is 2.79m and exactly 8 cycles are completed in 22.0 seconds. what is the radius, (in meters) and angular velocity of the circular motion
Four particles with masses 8 kg, 4 kg, 2kg, and 2kg are connected by rigid rods of negligible mass as shown. calculate the moment of inertia of the system about the z axis
The driver of a car (total mass 1250kg) traveling 144km/h slams on the brakes and brings the car to a stop in 40.0m. Calculate the force required to stop the car
the man and the platform together weigh 1200 N. The pulley can be modeled as frictionless. Elucidate how hard the man has to pull on the rope to lift himself steadily upward above the ground.
How to create a condition of weightlessness inside aircraft
A 0.22-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.1 m. (a) Relative to the configuration with the stone at the top edge of the well, what is the gravitational potential energy of th..
A system has three energy levels. The ground state is nondegenerate; however the first and second excited states, energies e1 and e2, respectively, have degeneracies of 3 and 2, respectively. Find the average energy at temperature T.
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