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Two blocks of masses m1 and m2 hang at the ends of a string that passes over the very light pulley with low friction bearings. Determine the force that the string exerts on each block for case when the blocks have different masses, but the heavier block 1 (mass m1) is positioned higher than the light one. Answer should be in terms of m1, m2, and g.
A 50 kg diver steps off a 10 m high platform and strikes the water below in 1.43 seconds. determine the average frictional force that stopped his motion while in the water
An oil production well produces from a formation that is 10 ft thick and has a permeability to oil of 50 millidarcies. The well produces only oil. Estimate the steady state production rate in bbl/day, assuming that the pressure (P) at the effective d..
A moving 4.3 kg block collides with ahorizontal spring whose spring constant is 321 N/m, What is the speed of the block when it hits the spring
a 15.0-cm-iong solenoid with radius 2.50 cm is closely wound with 600 turns of wire. the current in the windings is
there are a total of four pulleys. one pulley is on the 20 degree mark with 90 gm grams per meter over it. another
A player hits the ball at 48.2 m/s at an angle of 29.0 degrees above the horizontal. The outfield bleachers are 145 m away from home plate. What is the maximum height, above where the player hits the ball that the bleachers can be
A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18.0 cm. (a) Another car is behind your car, 9.00 m from the mirror, and this car is viewed in the mirror by your passenger
A source has a half-life of 12 hours and an initial activity of 10mCi. After 4 days what is its activity? Calculate the % of activity remaining in a source after 10 half lives.
Calculate the change in potential energy of a 92.8 kg man when he takes an elevator from the first floor to 29th floor, if the distance between floors is 4.41 m.
Consider a generator with a 350 turn coil on its armature and a uniform magnetic field of 5.4 T. how fast do we need to rotate the coil
q1. consider a too-small space station that consists of a 3.1 m radius rotating sphere. a man standing inside is 2.0 m
A car accelerates from 20 to 60 miles per hour in 6 seconds. What is the average speed of the car during this six-second interval? (Utilize the units given in the problem.)
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