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1. A positively charged conducting sphere is orbited by an electron at a constant distance. The potential difference that the electron experiences between two points in the orbit is equal to zero.True or False?2. Four identical positive point charges lie at the corners of a square. The electrical potential at the center of this square is zero because the electric fields all cancel at that point.True or False?
In a simple model of the hydrogen atom, theelectron revolves in a circular orbit around the proton with aspeed of 1.1 x 10 6 m/s. What is the radius of the electrons orbit
Asterix and Obelix are standing on skateboards on level ground 2 m apart. Obelix holds a ball of mass 1 kg. in which direction will the center of mass move
A typical nuclear reactor generates 1000 MW(1000MJ/s) ofelectrical energy. In doing so, it produces 2000 MW of"waste heat" that must be removed from the reactor to keep it frommelting down. Many reactors are sited next to large bodies of waterso t..
The upper surface of a cube of gelatin, 7.0 cm on a side, is displaced 0.84 cm by a tangential force. what is the magnitude of the tangential force
A 5 m x 12 m swimming pool slopes linearly from a 1.20 m depth at one end to a 3.40 m depth at the other. What is the mass of water in pool.
In a period of 1 s, 4.00 x10^23 nitrogen molecules strike a wall with an area of 6.30 cm2. If the molecules move with a speed of 300 m/s and strike wall head-on in elastic impacts, what is the pressure exerted on the wall? (The mass of one N2 mole..
A 4.0m deep swimming pool measures 28m by 11m. It's filled with fresh water. What force does the water exert on the bottom of the pool
A thin metal film of length 2.80 cm, width of 0.700 cm, and thickness of 30.0 micrometers is used to measure the Hall effect. Calculate the drift velocity of the charge carriers
An ideal gas is compressed from a volume of 400 cm^3 to a volume of 150 cm^3 slowly and isothermally in a piston-cylinder system. determine the heat transfer
A hang glider and its pilot have a total mass equal to 119 kg. While executing a 360° turn, What is the net force on the hang glider
The intensity (in W/m2) of one sound is 7.12 times as great as the intensity of another sound. Relative to the quieter sound
A golf ball with mass 45.90 g and diameter 42.60 mm is struck such that it moves and rotates with a frequency of 3081 rpm and has a kinetic energy of 69.58 J. What is the linear speed of the golf ball
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