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It is proposed that future space stations create an artificial gravity by rotating. Assume a space station is constructed as a 3000 meter diameter cylinder that rotates about its axis. The inside surface is the deck of the space station. Find what rotation period will provide gravity? Determine what is the tangential speed?
A 79 kg skier starts from rest at the top of a ski slope 58 meters high, if the fricitonal forces do -11.3 kj of work on her as she descends, how fast is she going at the bottom of the slope?
In a very busy off-campus eatery one chef sends a 239-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter from left to right at 1.79 m/s. n what direction does the delectible dish move, if it moves at all
A ball of clay weighing 0.5 kg is thrown at a pendulum bob at rest weighing 4-kg. What is the velocity of the pendulum bob
A railroad boxcar that has " due east" momentum of 15,000 kgm/sec collides with and couples with a similar boxcar that has "due west" momentum of 20,000kgm/sec. After collision, the combination has ( ) kgm/sec total of momentum.
A rocket has a mass of 1.25 x 106 kg including fuel. Determine the constant rate at which the fuel must be burned
A child throws a stone horizontally from the top of a 15 m cliff with a speed of 10 m/s. If the stone weighs 2 N, find its kinetic energy and speed
Three successive resonance frequencies for a certain string are 481., 518., and 555. Hz. What is the fundamental frequency
what is Spectroscopic and Photometric Parallaxes ? Define specific heat capacity and thermal capacity.
The most intense beam of light that can propagate through dry air must have an electric filed whose amplitude is no greater than the breakdown value of Eair max= 3.0*10^6 V/m, CALCULATE THE MAXIMUM AMPLITUDE OF THE MAGNITIC FILED
What is the acceleration of gravity 14,200km from the center of earth. How long will it take a satellite at this distance to circle earth?
A worker pulls a box of mass 65 kilogram on the floor at an angle 20 degree above the horizontal. Find the force needed to maintain the box moving with a constant speed
Two positive charges, each of magnitude 1 x 10^-6 C, are located a distance of 17 cm from each other. compute the magnitude of the force exerted on each charge
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