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Two blocks with masses M1=7.90kg and M2=1.20kg are attached by a thin string which goes over a frictionless, massless pulley. M1 slides on an incline and there is friction between M1 and the incline. The incline is at an angle of 30.0 degrees from horizontal as shown. M2 travels down at a constant velocity of 0.59m/s. Calculate the magnitude of the frictional force acting on M1.
a dog walking quickly away from a motion detector. Draw a velocity graph that could represent this motion
A newly discovered planet has twice mass of the earth, but the acceleration because of gravity on the new planet's surface is exactly the same as the acceleration due to gravity on the earth's surface. What is the radius Rp of the new planet in te..
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center.
What is the period of revolution? please give me answer and units to both questions. dont just give me equation
A green photon ( = 551 nm) is absorbed by a free hydrogen atom, initially at rest. What is the recoil speed of the hydrogen atom
A stone is thrown from the top a tall building with initial velocity of 25 m/s, directed at an angle of 30 degrees above the horizontal. how tall is the building
An ambulance with a siren emitting a whine at 1200 Hz overtakes and passes a cyclist pedaling a bike at 2.44 m/s, How fast is the ambulance moving
You are asked to construct a capacitor having a capacitance near 1 nF and a breakdown potential in excess of 10,000 V. What is the breakdown potential of this capacitor
A proton in the upper atmosphere moves at 8.6×105m/s , perpendicular to Earth's magnetic field, Find the curvature radius of the proton's trajectory
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s, A physics-110 student needs 500 W of Power to climb two flights of staris to get to the physics class room in 40 s
A wooden block with mass 0.33kg rests on a horizontal table, connected to a string that hangs vertically over a friction-less pulley on the table's edge, Find the block's acceleration if k =0.18.
It is desired to slip an aluminum ring over a steel bar. At 10 the inside diameter of the ring is 4.550 and the diameter of the rod is 4.580. Find the temperature at which the ring can be removed
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