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The uniform diving board has a mass of 33 kg. There are 2 distances on it: 1. the distance from point A to point B is 1m. 2. The distance among point B and the end of the diving board is 3.6 m. discover the force on the support A when a 69 kg diver stands at the end of the diving board. The acceleration of gravity is 9.8.
Two coils of wire are placed close together. Initially, a current of 4.70 A exists in one of the coils, but there is no current in the other. What is the mutual inductance of the two-coil system
A zone plate is to be set up on an optical bench , where it will be used an an enlarging lens. find the focal length of the zone plate
The length of a string is 532cm. It is held fixed at each end. The string vibrates in seven sections; i.e. string has seven antinodes, and the string vibrates at 150 Hz. What is the wavelength.
A 2.90 box is moving to the right with speed 8.50 on a horizontal, frictionless surface, What distance does the box move from its position at before its speed is reduced to zero
A 50 kilogram person is ice-skating due north with a velocity of 5.8 m/s when he collides with a 42 kilogram kid. find the direction of the kid velocity just before collision
a ball leaves a 0.60 meter high table with an initial horizontal velocity of 2.4 ms. predict the time required for the
what is the electric potential energy of an electron at the negative end of the cable relative to the positive end of
A ray of light passes from air through dense flint glass andthen back into air. How far is the ray displaced as aresult of traveling through the glass
There is evidence that elephants communicate via infrasound,generating rumbling vocalizations as low as 14 hz that can travelup to 10 km. The intensity level of these sounds can reach98 dB, measured a distance of 4.5 m from the source.
A 57-kg water skier is being pulled by a nylon tow rope that is attached to a boat. The unstretched length of the rope is 11 m, What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.90 m/s2
A 7.3 m diameter solid sphere can be rotated about an axis through its center by a torque of 10.8 m*N which accelerates it uniformly from rest through a total of 150 revolutions in 16.0s
A load of 50kg is applied to a lower end of a steel rod 80cm long and 0.6cm in diameter. How much will the rod stretch
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