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A voltage of 20.0 V is applied across the two ends of a Tungsten wire with a temperature coefficient of resistivity of 4.50×10-3 1/K. Initially the wire is kept at room temperature. If the wire is cooled down to freezing temperature, then the power dissipated by the wire will:
The barricade at the end of subway line has a large spring designed to compress 2.00 m when stopping a 1.00 x 10^5 kg train moving at 0,500 m/s. What speed would the train be going if it only compressed the spring 0.500 m?
A railroad car of mass 2.40 multiply.gif 104 kg is moving with a speed of 3.82 m/s. find the speed of the four cars after the collision
A 3 kg toy car with a speed of 5 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 5 m/s, how much kinetic energy is lost
Explain how fast would it be moving after it had fallen a distance of 0.010 m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
A 1.1 kg birdfeeder hangs from a horizontal tree branch. The birdfeeder is attached to the branch at a point that is 1.0 m from the trunk. where the branch attaches to the trunk
a ball is tossed into the air at a speed of 64.0 m/s at an unknown angle. If the ball is observed to rise to a maximum height of 7.80 m, elucidate at what angle was the ball thrown relative to the ground?
You need to push a box across the room. which side of the box should be the side down on the floor
A small earthquake starts a lamppost vibrating back and forth. What is the time constant for the damping of the oscillation
What is the tension in the string.At one time, television sets used "rabbit-ears" antennas. Such an antenna consists of a pair of metal rods.
A 525-ohm resistor and a 295-mH inductor are connected in series with an ac generator with an rms voltage of 20.0V
A 25g ball is fired with an initial speed v1 toward a 150g ball that is hanging motionless from a 1.30m string. The balls have a perfectly elastic collision. As a result, 150 g ball swings out until the string makes an angle of 37° with vertical. ..
A gymnast does a one-arm handstand. The humerus, which is the upper arm bone (between the elbow and the shoulder joint), What is the compressional strain of the humerus
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