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Consider the two blocks attached by a mass less rope that is strung over a frictionless and mass less pulley. The block on the ramp has a mass of 6 kilogram and the mass hanging by the rope has a mass of 2 kilogram. If the ramp is also frictionless, which direction are the blocks moving and are they accelerating? Evaluate what is the tension in the rope? The angle of the ramp with the horizontal is 30 degree.
A net force of 20 N accelerates a 9-kg mass over a distance of 20 m. What is the increase in kinetic energy of the mass
Two lasers, one red (with wavelength 633.0 nm) and the other green (by wavelength 532.0 nm), are mounted behind a 0.150-mmslit. On the other side of the slit is a white screen. When the red laser is turned on, it creates a diffraction pattern on the ..
water flows at 0.56 ms through a pipe 19 cm in diameter when the pressure is 34000 pa. determine the water velocity
A person throws a ball from height of 0.950 meter with a vertical velocity of +6.00 m/s and misses it on the way down. Find what is its velocity when it hits the ground
a certain system has 6x10624 degrees of freedom, which internal energy increases by 1%; then, by what factor does the number of accessible estates increase
the red color of hemoglobin is a consequence of the strong absorption by this protein of yellow and green light in the
A circular wire loop of area 0.18m squared carries a current of 4 A. the coil lies in a horizontal plane with the current flowing in the counterclockwise direction, find the magnitude of the torque which acts on the loop
A box of textbooks of mass 24.7 kg rests on a loading ramp that makes angle a with the horizontal. The coefficient of kinetic friction is .25 and the coefficient of static friction is .37. Find out the minimum angle at which the box starts to sl..
A microphone is located on the line connecting two speakers that are 0.766 m apart and oscillating 180° out of phase. What is the next lowest frequency that produces an interference maximum at the microphone's location
suppose that sound is emitted uniformly in all directions by a public address system. the intensity at a location 25 m
a large reel of paper installed at the end of a paper machine. d1 2m j 1000kgm2 n1 60rpm tension on paper 1000n.
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 33.5 dB. What is the intensity delivered to the eardrum
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