Abattery-operated car utilizes a 12.0 v system. initially, the car is at rest at the base of a 163 m high hill. some time later, the 690 kg car reaches the top of the hill with a speed of 25.0 m/s. how much charge did the batteries move through the motor to accomplish this, neglecting friction? note that a battery provides energy by moving charge through the battery voltage, which is 12 v in this case. (hint: the car clearly gains kinetic energy and gravitational potential energy, so that energy most be coming from somewhere. what object in this problem is the original source of that energy? )
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Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 08:30
What properties of a moving object are used in determining the object's energy of motion
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Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
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Physics, 22.06.2019 22:00
Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?
Answers: 1
Abattery-operated car utilizes a 12.0 v system. initially, the car is at rest at the base of a 163 m...
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