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A 250 g, 24-cm-diameter plastic disk is spun on an axle through its center by an electric motor. What torque must the motor supply to take the disk from 0 to 1600 rpm in 4.1 s?
A 11.0 cm -diameter compressed-air tank is 70.0 cm tall. The pressure at 30.0 degrees C is 130 atm. How many moles of air are in the tank
An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 14.9 N. compute the volume of the object
A 220 g block hangs from a spring with spring constant 12 N/m. At t=0;{rm s} the block is 31cm below the equilibrium point and moving upward with a speed of 89.0 cm/s. What is the block's distance from equilibrium while the speed is 30 cm/s.
The Earth has a radius of approximately 6.37 x 10 ^ 6 meters (m). Determine the surface area of the Earth in square kilometers
A uniform rod of mass 3.05×10?2kg and length 0.350m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the rod after the rings leave it
question1a solid cylinder of mass 8.9 kg and radius 32 cm is yoked to a spring as shown. to be precise axle of the
question11 the molecular mass of helium is 4 gmol boltzmannrsquos constant is 1.38066 times 10minus23 jk universal gas
question1sam whos mass is 70 kg takes off across level snow in his jet powered skis. the skis have a thrust of 204 n
how long one electron to travel the full length of the cable.
You want to shoot a 19cm long arrow parallel to this axle and through the wheel without hitting any of spokes. Suppose that the arrow and the spokes are very thin.
A 2.0kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 360m/s, find the speed of the block immediately after the bullet exits
define How fast is the osprey approaching. Two of the fragments move with the same speed right after the explosion as the entire projectile had just before the explosion.
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