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A physics book slides off a horizontal table top with a speedof 1.15 m/s. It strikes the floor in0.500 s. Ignore air resistance.(Assume the book's horizontal direction and upward are positive.)
(a) Find the height of the table top above the floor inmeters?
An explosion breaks an object, originally at rest, into two fragments. One fragment acquires twice the kinetic energy of the other. What is the ratio of the masses
The lens of an endoscope is carefully matched such that the light ray from the edge of the lens enters the fiber at an angle. What focal length should the lens have
A box slides down a 25° ramp with an acceleration of 1.070m/s2. Resolve the coefficient of kinetic friction between box and ramp.
A spherical water drop, 1.80 ?m in diameter, is suspended in calm air owing to a downward-directed atmospheric electric field E = 452 N/C. What is the weight of the drop
An electric field of 300 V/m is confined to a circular area d = 11.1 cm in diameter and directed outward perpendicular to the plane of the figure. If the field is increasing at the rate of 22.0 V/m·s, what are direction and magnitude of the magnet..
A 8.00 nF capacitor is connected to a battery and is charged to a maximum charge of 7.40 ?C through a 1.60 k? resistor. What is the voltage of the battery
A wire whose resistance si R120ohm is cut in 7 equally longpecies, which are then connected in parallel way. What is the resistance of the parallel contribution
A 2.5 kg stone is dropped from a height of 4m. What is its momentum on impact
A particle with a mass of 4.10 × 10-20 kg is oscillating with simple harmonic motion with a period of 2.9 × 10-5 s and a maximum speed of 2.3 × 103 m/s.
A 1.0-cm-diameter pipe widens to 2.0 , then narrows to 0.5 . Liquid flows through the first segment at a speed of 4.0. Speed of 2nd segment, and 3rd? Whats the vol flow rate?
A computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s(squared) until it reaches its final angular speed of 7200 rpm
A proton accelerates from rest in a uniform electric field of 670 N/C. At some later time, its speed is 1.38 106 m/s. How far has it moved in that interval
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