Find the mass of the worker
A worker stands still on a roof sloped at an angle of 39° above the horizontal. He is prevented from slipping by a static frictional force of 440 N. Find the mass of the worker.
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A positively charged particle of mass 6.00 10-8 kg is traveling due east with a speed of 25 m/s and enters a 0.46 T uniform magnetic field. What is the magnitude of the charge of the particle?
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. The throw is made with an initial speed of 15.0 m/s at an angle of 38.0^circ above the horizontal. What is the horizontal component o
A hollow sphere is rolling along a horizontal floor at 7.00 m/s when it comes to a 39.0^circ incline. how far does it go up the incline before coming to a stop and roll back down?
Meanwhile, Isaac is piloting his ship in the westward direction, also at 0.88, toward Albert's ship. With what speed does Isaac see Albert's light beam pass his ship?
A tank of water 3.0 m deep sits on a table 1.0 m tall. A hole is located 2.0 m from the bottom of the tank. Water flows out of the hole and strikes the ground. where does it strike the ground? Assume incompressible, nonviscous flow.
A sailboat leaves a harbor and sails 1.8 km in the direction 65° south of east, where the captain stops for lunch. A short time later, the boat sails 1.1 km in the direction 15° north of east. What is the magnitude of the resultant displac
A particular guitar string is supposed to vibrate at 183 Hz, but it is measured to vibrate at 219 Hz. By what percent should the tension in the string be decreased to correct the frequency.
When the loop is placed inside a solenoid and direction of the current is reversed the plastic beam will move in the opposite direction. Explain please
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