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A Van de Graaff generator is used to demonstrate the effects of high potential. The device has a radius of 59.7 cm and stands in air. the maximum potential is 1.79×106 V . Note that an electric field of 3.0×106 V/m is sufficiently large to cause sparking in air. How much charge does the dome hold at its maximum potential?
A high-pass RC filter is connected to an AC source with a peak voltage of 18 V. The peak capacitor voltage is 5.27 V
A 5.2 x10^2-newton girl takes 10. Seconds to run up two flights of stairs to a landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
A parallel-plate capacitor has an area of 2.0cm^2, and the plates are separated by 2mm.
You have a mass of 87 kg and are on a 50-degree slope hanging on to a cord with a breaking strength of 221 newtons. Illustrate what must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved fro..
Two people are holding up the ends of a 4.75-kg wooden board that is l = 2.00 m long. A m = 3.00-kg box sits on the board, 0.50 m from one end. What forces do the two people exert.
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 m/s. Estimate the velocity of the third piece? Suppose each piece has a mass of 2 kg.
A certain car battery with a 14.0 V emf has an initial charge of 195 A•h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of 184 W.
A 2.00 µC charge is experienced by 0.438 N force in an electric field. What is the magnitude of the electric field?
The minute hand of a wall clock measures 14 cm from its tip to the axis about which it rotates. The magnitude and angle of the displacement vector of the tip are to be determined for three time intervals.
Charge Q = 10E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge. A) Find the potential difference VB - VA between the two points. B) Which point is at the higher potential? Type either "Po..
Illustrate the security threats that An industry will face when it implements a wireless network. Suppose that the industry occupies the six middle floors
The three ropes are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles with tensions T1 = 35 N andT2 = 70 N. What are the magnitude and direction of the tension Tvec3 in third rope.
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