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Q. A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
At first the truck is traveling at constant velocity. Find out the tension in the string holding the ornament, and the angle of the string to the y-axis.
At one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s.
What is the speed of the runner. What is the total translational kinetic energy of gas molecules.
At what distance along the central axis of a ring of radius 1.8 cm and uniform charge 66 C is the magnitude of the electric field maximum.
What is the rms speed of nitrogen molecules contained in an 7.9 m3 volume at 2.1 atm if total amount of nitrogen is 1100 mol.
How far above the aim is the point
suppose an electric motor continuously operating with average power 4.65 kW runs the pump. Find its efficiency.
Find out the overall change in internal energy between the initial and final states per unit mass of water.
Sherlock Holmes examines a clue by holding his magnifying glass (with a focal length of 15.0 cm) 10.0 cm away from an object. Find the image distance and the magnification. explain the image that he observes.
How much charge does the battery supply to each plate.
A man in search of his dog drives first 10mi northeast, then 54mi straight south, and finally 6mi in a direction 30° north of west. What are the magnitude and direction of his resultant displacement.
A 65kg trampoline artist jumps vertically upward from the top of a platform that is 2 m above the trampoline with a speed of 4.80m/s.
An ideal gas is enclosed in a cylinder that has a moveable piston on top. The piston has a mass of 6200 g and an area of 5 cm2 and is free to slide up and down.
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