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In loading a fish delivery van, a man pushes a block of ice up a 16o incline at constant speed. The push is 165 Newton in magnitude and parallel to the incline. The block has a mass of 34.0 kilogram.
Find the force of kinetic friction on the block of ice?
An open-pit coal mine consumes 71hectares of land, down to a depth of 23m, each year. What volume of earth, in cubic kilometres, is separate in this time.
a 0.25kg block is placed on a light vertical spring k5 x 103nm and pushed downwards compressing the spring and
A man in search of his dog drives first 10mi northeast, then 54mi straight south, and finally 6mi in a direction 30° north of west. What are the magnitude and direction of his resultant displacement.
A particle with a charge of 5 x 10^-6 C and a mass of 20g movesuniformly with a speed of 7m/s in a circular orbit around astationary particle with a charge of -5 x 10^-6 C. What is the radius of the orbit?
a 43-year - old mother of three comes to a physicians office with suspected breast cancer. because she is located in a
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has amass of 5.7×104 kg, and the force causes itsspeed to change from 7400 to 5900 m/s. (a) What isthe work done by the..
Find the total number of lines in a 3.0cm -wide diffraction grating whose third-order spectrum has the 660nm hydrogen theta spectral line at an angular position of 41degree celcius.
A bullet with a mass of .06 kg hits a 5.0 kg block with an initialspeed of 225 m/s. The block is connected to a spring. Thefriction between the block and the table is negligible. Uponimpact the bullet bounces back from the box with a speed of 75m/s.
In one such decay the electron and the neutrino are emitted at right angles to each other. The electron (mass 9.11x10^ -31 kg)has a speed of 3.8x10^ 7 m/s and the momentum of 7.6x10^ -24 kg m/s. What is the recoil speed of the nucleus?
Consider a fish of average size swimming near the bottom of a lake of depth 46 m. What is the water pressure next to the fish
A uniform 25 kg door that is 2.4 m high by 1.10 m wide is hung from two hinges that are 20 cm from the top and 20 cm from the bottom. If each hinge supports half the weight of the door, find the magnitude and direction of the horizontal components of..
A 2.5 kg solid sphere (radius = 0.10m) is released from rest at the top of a ramp and allowed to roll without slipping. obtain its translational kinetic energy
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