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A bullet shot straight up into the air returns to it's starting point in 10 seconds. What is the initial speed of the bullet?
A 779-kg car stopped at an intersection is rear-ended by a 1820-kg truck moving with a speed of 15.0 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find out the final speed of both vehicles ..
During an adiabatic process, the temperature of 3.62mol of a monatomic ideal gas drops from 460C to 215C a) Find the work done by the gas. b)Find the heat the gas exchanges with its surroundings. c)Find the change in its internal energy.
Find out , the magnitude of the force each plate experiences due to the other plate as a function of , the potential drop across the capacitor.
A rotating cylinder about 18km in length and 6km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that residents on it will experience the same acceleration because of gravity on Earth.
Light travels at about 0.75c in water. What's the wavelength in water of light whose wavelength in vacuum is 664nm
Ask a A projectile is fired with an initial speed of 66.4m/sat an angle of 37.6? above the horizontal on a long flat firing range. Determine the direction of the projectile 1.32s after firing
What are the two main mechanisms that the planet Earth uses to balance water that goes up with the water that comes down over Earth.
A long, straight wire of length 0.75 m carries a current of I=1.5 A in a region where B= 2.3 T. what is the angle between the field and the wire
An electron has an initial velocity of (15.0 j + 22.0 k) km/s and the constant acceleration of (3.00*10^12 m/s^22)i in a region in which uniform electric and magnetic fields are present. If B = (400 µT)i, find the electric field E.
a boy pulls a loaded wagon having a total mass m=100kg. He applies a constant force F=100N along the handle at 30 degrees, compute the horizontal force on the wagon
A 55.6 kg child slides down a water slide with a velocity of 0.9 m/sec at the top. At the bottom of the slide, she is moving horizontally, y=1.5 meters above the water. She splashes into the water d=2 meters to the left of the bottom of the slide.
What will most likely cause arcing at the switch contacts.
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