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Over a certain region of space, the electric potential is V =5x - 3x2y + 2yz2. Find (a) an expression for the electric field (b) the magnitude of the electric field at the point (4, 0, -3).
Two equal positive charges and are separated with 0.77 meters and experience an electric force between them. They then exchange charge (electrons) somehow such that the both remain positive and after doing so the electric force between decreases by 1..
A girl throws a tennis ball upward with an initial velocity of 4 m/s. What is the maximum displacement of the ball
1. An intern pushes a 72 kg patient on a 15 kg gurney, producing an acceleration of 0.60 m/s^2. A) How much work does the intern do by pushing the patient and gurney through a distance of 2.5 m? Assume the gurney moves without friction. B) How far..
It is possible to shoot an arrow at a speed as high as 116 m/s. Determine how long would the arrow be in the air
What are the concerns about global warming? How could CO2 pollution be decreased while our energy needs are still being met? Assuming that the name has not been retired, what will be the name of the third Atlantic tropical storm in 2008?
question astronauts on a distant planet set up a simple pendulum of length 1.3 m. the pendulum executes simple harmonic
What is the weight of the displaced amount of water when the boulder is placed inside the tank (measured in N)? The tank had an original volume of water of 5000 L. while the boulder got placed inside the tank, the volume of water rose to 5010.165 ..
A 30-g pellet of this metal at 16oC hits a solid wall and comes to a complete stop. What would the speed of the pellet have to be in order for it to melt completely when it hits the wall, assuming that all of its kinetic energy is transformed into..
1000 kg of seawater at 17.5 C and salinity of 3 percent is mixed with 500 kg of pure water with initial temperature 5 C, Determine the final temp C and salinity % of the mixture?
question what mass of solid cao is needed to remove the sulfur dioxide from 1.0 106 m3 of air having an so2
A crate of 31.9- tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move while your force exceeds 345. After that you must reduce your push to 247 to keep it moving at a..
a 7.00-l vessel contains 3.50 moles of gas at a pressure of 1.60x106 pa. find a the temperature of the gas and b the
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