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A 70 kg object is being pulled up a slope of 35 degrees with the horizontal so that the rope is parallel to the slope. If the object is accelerating up the ramp at 0.6 m/s2 and the coefficient of kinetic friction is 0.4, what is the magnitude of the force pulling the block? Start with a free body diagram.
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..
Write down an equation for the radial component
a 61.0-kg skier starts from rest at the top of a ski slope of height 67.0 mathe skier crosses a patch of soft snow
A 2kg box slides along a frictionless surface with a speed of 15m/s and approaches a horizontal spring with a spring constant of 2000N/m. If one end is fixed, How far will the spring compress in stopping the box
An energetic father stands at the summit of a conical hill as he spins his 21 child around on a 5.1 cart with a 2.1--long rope. The sides of the hill are inclined at 25 . He keeps the rope parallel to the ground, and friction is negligible. What rope..
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
A displacement, s, of an object as a function of time, t, is given by , Find an expression for the acceleration of the object
write the equation for a wave traveling in the negative direction along the x-axis and having amplitude 0.010-m a
An 89 kg man lowers himself to the ground from a height of 6.2m by holding onto a rope that runs over a frictionless pulley to a73 kg sandbag
How much charge passes through the hair dryer. Find the magnitude of the magnetic field at the center of the square.
An inductor with an inductance of 2.10 H and a resistance of 7.90 Omega is connected to the terminals of a battery with an emf of 6.00 V and negligible internal resistance. Find the initial rate of increase of current in the circuit
A solenoid of radius 1.6 cm has 351 turns and a length of 10 cm.The permeability of a free space is 1.25664 × 10^?6 V · s/A · m. Find the rate at which current must change through it to produce an emf of 56 mV
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