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Question: A capacitor consists of two 4.6-cm-diameter circular plates separated by 1.0 mm. The plates are charged to 130 V , then the battery is removed.
a) How much energy is stored in the capacitor?
b) How much work must be done to pull the plates apart to where the distance between them is 2.0 mm?
A potter's wheel -- a thick stone disk of radius 0.500 m and mass 120 kg -- is freely rotating at 50.0 rev/min. Find the effective coefficient of kinetic friction between the wheel and the rag
a 1.0-cm-diameter pipe widens to 2.0cm then narrows to 0.5cm. liquid flows through the first segment at a speed of
Explain how Karl lifed th cement. How much time would it take for the police officer to catch the speeder, assuming that the speeder maintains a sonstant speed? How fast will the police officer be traveling at this time.
With reference to these technologies, discuss the methodology of blood cell analysis and explain its limitations. Illustrate with diagrams where appropriate
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with fix acceleration. Find how fast was he going when he hit his brakes
An amusement park ride is shown in Fig. 1. It has a motorized vertical shaft with twoattached cables. The cables join at a seat which holds a seated passenger. The combinedseat and passenger have a weight of 1050 N. The seat swings in a horizo..
A car is traveling in a uniform circular motion on a section of road whose radius is r. The road is slippery, and the car is just on the verge of sliding.
A mover pushes a 98 kg crate up a ramp at constant speed. Find the parallel and perpendicular components for all of the external forces acting on the crate
The velocity of a ball changes from ‹ 9, ?7, 0 › m/s to ‹ 8.96, ?7.14, 0 › m/s in 0.02 s, What is the rate of change of momentum of the ball
A plane lands on a runway with a speed of 135 m/s, moving east, and it slows to a stop in 15.0 s. What is the magnitude and direction of the plane's average acceleration during this time interval?
The "size" of the nucleus in Rutherford's model of the atom is about 1.00 fm = 1.00E-15 m. Determine (in MeV) the electrostatic potential energy of the pair of protons
a 75 g frisbee is thrown from a point 0.9 m above the ground with a speed of 12 ms. when it has reached a height of 1.9
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