Physics, 15.04.2020 05:16 genesis3105
If a large enough electric field is applied, even an insulator will conduct an electric current, as is evident in lightning discharges through the air. Explain how this happens, taking into account the opposite charges in an atom and how ionization occurs.
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Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s
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What is the kinetic energy of an object that has a mass of 50.0kg and a velocity of 18 m/s?
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Physics, 23.06.2019 21:00
Asample of a gas in a rigid container has an initial pressure of 5 atm at a temperature of 254.5 k. the temperature is decreased to 101.8 k. what is the new pressure?
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Physics, 24.06.2019 00:00
Two ropes support a 15.0 kg load between them. determine the magnitude of the tension force in each of the ropes. t1 points nw at an angle of 15.0 degrees to the horizontal. t2 points ne at an angle of 20.0 degrees to the vertical.
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