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A 100 g meter stick is allowed to pivot about its center. A 1 g bb is shot at the end of the stick (where it is embedded) causing it to rotate. Air resistance causes an average frictional torque of .1 Nm on the stick, making it stop after rotating 10 times. What is the initial velocity of the bb?
what is the maximum amount the spring may be stretched and the box remain at rest.
Consider an airless, non-rotating planet of mass M and radius R. Calculate the ratio h/R of the projectile's maximum height to the planet's radius
A disk of radius has a total charge uniformly distributed over its surface. The disk has negligible thickness and lies in the xy plane. What is the electric potential V (z) on z axis as a function of z, for z>0.
A skier of mass 68.4 kg glides down a hill of slope 26.5 degree at constant speed. If she travels a distance 35.0m down the hill, what is (a) the work done by friction and (b) the coefficient of friction between her skis and the slope?
A box is put on a slide to move it from one part of a factory to another the slide is at an angle of 20 degrees below the horizontal the coefficient of friction between the box and slide is 0.352 what is the acceleration of the box.
Presume your local government wants to raise your taxes in order to support the construction of wind and solar power plants that can give your town with low-polluting energy and help decrease your town's dependence on fossil fuels for energy. Would y..
An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 meter per second. Find the velocity of the third piece?
The internal energy of a system changes becasue the system gains 176 J of heat and performs 312 J of work. During this return process, what work is involved
define why a dielectric increases the maximum operating voltage of a capacitator even though the physical size of the capacitator doesn't change.
Both teenagers pull with a force of 55 at an angle of 35 relative to the forward direction, that is the direction of motion. In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magn..
A golf ball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.8 s after being hit, How high is the fence
Suppose that you have two identical capacitors and a single resistor. If you make an RC circuit with one capacitor, What is the time constant for this circuit
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