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A 34.7 meter long aluminum wire at a temperature of 24.3oC has a radius of 0.295 millimeter. If a potential difference of 15.6 Volt is applied across the length of the wire, compute the current in the wire. If the wire is heated to 76.8oC and the 15.6 Volts potential difference is maintained, compute the resulting current in the wire?
If the wire is heated to 73.8oC and the 19.2 Volts potential difference is maintained, compute the resulting current in the wire?
A bicycle is moving at a speed v = 4.26 m/s. If the radius of the front wheel is 0.450 m, how long does it take for that wheel to make a complete revolution.
A tuning fork generates sound waves by a frequency of 248 Hz. The waves travel in opposite directions along a hallway, are reflected by walls, and return. The hallway is 46.0 m long and the tuning fork is located 14.0 m from one end.
De Broglie postulated that the relationship λ= h/p is valid for relativistic particles. What is the de Broglie wavelength for a (relativistic) electron having a kinetic energy of 3.22 MeV?
A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.5x), How much work is done on the can by the force
A 300 g bird flying along at 5.7 m/s seesa 10 g insect heading straight toward it with a speed of 35 m/s (as gauged by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch.
Does this mean that the balloon is also storing several Joules of energy?
a series RLC circuit has a resistance of 500 ohms, and inductance of 20.0 mH, and a capacitance of 2.00 uF. what is the peak current in this circuit
Observer S detects two flashes of light. A big flash occurs at x1 = 1242 m and, 6.06 ?s later, a small flash occurs at x2 = 802 m. what is the time interval between the flashes
Use the worked example above to help you solve this problem. A skier starts from rest at the top of a frictionless incline of height 20.0 m, Find the skier's speed at the bottom
A 0.14-kg pinecone falls 16m to the ground, where it landswith a speed of 13m/s. (a) With what speed would the pinecone have landed if there had been no air resistance? (b) Did air resistance do positive work, negative work, or zero work on the pi..
A space traveler moving at a speed of 0.56c by respect to the earth makes a trip to a distant star that is stationary relative to the earth. He measures the length of this trip to be 7.9light-years.
The current indoor world record time in the 200-m race is 19.92 s, held by Frank Fredericks of Namibia (1996), Find the mean speed in meters per second corresponding to the record time for the 200-m event
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