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A water skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 70.3 kilogram water skier has an initial speed of 6.10 m/s. Later, the speed increases to 11.3 m/s. find the work done by the net external force acting on the skier.
question a beam of light in air is incident on the surface of a slab of fused quartz. part of the beam is transmitted
A +22.0-nC charge in anE-field is moved by an applied force. If 55.0 nJ of work are done on the charge by theforce, what is the change in potential experienced by the charge
A flat uniform circular disk has a massof 2.30 kg and a radius of58.0 cm. It is suspended in ahorizontal plane by a vertical wire attached to its center. Calculate the rotational inertia of the disk about the wire
A body moves with shm and passes two points A and B 56cmapartwith the same velocity,having occupied 2s in passing from A toB. Find the period and amplitude of the oscillation
a lead bullet weighing 0.0200 lbf and traveling horizontally at 3000. fts is suddenly stopped by a perfectly rigid
A block of mass 16.7 kg supported by a vertical massless cable is initially at rest. estimate the magnitude of the net force acting on the mass
A 54.0-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 520 kg · m2 and a radius of 2.00 m. Is the mechanical energy of the system constant
an electric field is constant at every point on a square surface that is 0.80 m on a side. this field has a magnitude
Calculate the power required by an object to lift another object
a pendulum of period 2 s is released from rest at an inclination of 5 degrees to the downward vertical. what is its
A spherical Van de Graaff ball of radius 0.15 m is charged to 500,000 Volts. It is spinning at 60 rpm; calculate the magnitude of its magnetic moment
When Albert turns on his small desk lamp, the light falling on his book has intensity Io. When this is not quite enough he turns the small lamp off, What is the intensity of light falling on the book
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