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A 30,000-kg truck travelling at 10.0m/s collides with a 1700-kg car travelling at 25m/s in the opposite direction. If they stick together after the collision, how fast and in what direction will they be moving?
During a 75-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 6.3-mA current in a nearby secondary coil. What is the change in the primary current
A 300-kg elevator is raised with a constant speed through a vertical distance of 100 m in two minutes. What is the useful output power of the hoist
If the free ends of the two cylinders are maintained at constant temperatures of 93?C (steel) and 28?C(copper), how much heat will flow through the cylinders in 25 min
A pair of power transmission lines each have a 0.86ohms resistance and carry 940A over 13km. If the rms input voltage is 24kV. Calculate the voltage at the other end
A helicopter lifts a 72 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/12. How much work is done on the astronaut
A person walks into a room that has, on opposite walls, two plane mirrors producing multiple images. Find the distances from theperson to the first three images seen in the left-hand mirror, whenthe person is 5.00 ft from the mirror on the left wall ..
How much heat flows from 1.00 kg of water at 36.0°C when it is placed in contact with 1.00 kg of 22°C water in reaching equilibrium
q1. a 1035 kg car carrying four 78 kg people travels over a rough washboard dirt road with corrugations 5.0 m apart
A circular-motion addict of mass 85 kg rides a Ferris wheel around in a vertical circle of radius 10 m at a constant speed of 6.0 m/s. (a) What is the period of the motion
A 750g aluminum pan is removed from the stove and plunged into a sink filled with 10.0kg of water at 20.0C. What was the initial temperature of the pan
A thick cylindrical shell of inner radius a= 5 cm and outer radius b= 10 cm and has a net charge ZERO. find the inner and outer surface charge densities
Light travels at a speed of about 3.0 10^8 m/s. How many miles does a pulse of light travel in a time interval of 0.1 s, which is about the blink of an eye
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