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The resistance R of a particular carbon resistor obeys the equation
√(log R'/T) = a + b log R',
Where a = -1.16 and b = 0.675.
(a) In a liquid helium cryostat, the resistance is found to be exactly 10000 (ohms). What is the temperature?
(b) Make a log-log graph of R against T in the resistance range from 1000 to 30,0000.
An airplane needs to reach a velocity of 487 km/h to take off. On a 2000 m runway, what is the least acceleration necessary for the plane to take flight.
What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 529nm light? The index of refraction of the coating material is 1.53 and the index of the glass is 1.60.
A glass is half-full of water, by a layer of vegetable oil (n = 1.47) floating on top. A ray of light travelling downward during the oil is incident on the water at an angle of58.0°. Decide the critical angle for the oil-water interface
When a train's velocity is 12.0m/s eastward, raindropsthat are falling vertically with respect to the earth make tracesthat are inclined 30degrees to the vertical on the windows of the train, What is the magnitude of the velocity of the raindrop
Water flowing through a garden hose of diameter2.70cm fills a20.0-L bucket in1.30min. what is the speed of the water leaving the nozzle
The only force acting on a 1.2 kg canister that is moving in an xy plane has a magnitude of 4.4 N. How much work is done on the canister
A baking dish is removed from a hot oven and placed on a coolingrack, What was the net radiant power of the baking dish when it was first removed from the oven
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m/s above the floor. how long does it take to reach the floor.How far from a point on the floor directly below the edge of the bench would the ball land.
An ocean liner leaves New York City and travels 37.0° north of east for 171 km. How far east and how far north has it disappeared? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
Calculate the average potential energy for the v=1 state of a harmonic oscillator. Use the substitutions for α and ω from your class notes to simplify your answer.
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of magnitude 196 ?C on each plate. What is the dielectric constant of the dielectric slab
What is the self-inductance of a toriod of inner radius 5cm, outer radius 15cm, 10,000 turns. If the emf induced is 5 volts rms and the rate of current change is 0.5 amp/sec. What is the magnetic field at 8cm from the center for a current of 5 amp..
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