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As a 5-kg block travels around a 0.6-m radius circle it has an angular speed of 14 rad/s. The circle is parallel to the xy plane and is centered on the z axis, 0.92 m from the origin. The magnitude of its angular momentum around the origin is?
The plates of a parallel-plate capacitor have a separation of 4.04mm , and each has an area of 15.4cm2 . Each plate carries a charge of magnitude 6.65×10?8C, What is the potential difference between the plates
A glass bead charged to 3.8 nC exerts an 6.0Ã-10âˆ'4N repulsive electric force on a plastic bead 2.7 cm away
A doubly charged helium atom whose mass is 6.6 10-27 kg is accelerated by a voltage of 2500 V. What is its period of revolution
The first-order principal maximum produced by a grating is located at an angle of ? = 15.0 degrees. What is the angle for the third-order maximum
The heat of vaporization of ethyl alcohol is about 200cal/g. If 1.30 kg of it were allowed to vaporize in a refrigerator, how various grams of ice would be formed from 0°C water.
Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from P1 = 2.5atm to P2 = 1.3atm, Calculate the total heat flow into or out of the gas
You land on a new planet with radius 5000km. You measure the freefall acceleration due to gravity to be 8.5m/s^2 at the surface
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.6 m/s at ground level. For what time interval is the rocket in motion above the ground
A motor attached to a 120 V/60 Hz power line draws an 8.10 A current. Its average energy dissipation is 810 W. What is the motor's resistance
A 75 kg person escapes from a burning building by jumping from a window 25-m above a catching net. Assuming that air resistance exerts a 95-N force on the person all through the fall, determine out the person's velocity just before hitting the net..
An 82 kg lumberjack stands at one end of a 355 kg floating log. Both the log and the lumberjack are at rest initially. If the lumberjack now trots toward the other end of the log with a speed of 2.70 m/s relative to the log, what is the lumberjack's ..
A 230g baseball is pitched at 42m/s spinning at 40rad/s . You can treat the baseball as a uniform solid sphere of radius 4.0cm
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