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An underground telephone cable, consisting of a pair of wires, has suffered a short somewhere along its length (at point P in the Figure). The telephone cable is 6.00 km long, and in order to decide where the short is, a technician first measures the resistance among terminals AB; then he measures the resistance across the terminals CD. The first measurement yields 20.00 Ω; the second 115.00 Ω. Where is the short? Give your answer as a distance from point C. Suppose that the telephone wires are of uniform diameter.
The decay constant of Radon is .181/day. A sample of Radon contains 6.00x10^8 Radon atoms. How many atoms are left after 12 days
If an ocean wave strikes the land every 12 seconds and the horizontal distance between adjacent crests and troughs is 4 m, what is the average speed of the wave
question what should be the index of refraction of a transparent sphere in order for paraxial rays from an infinitely
A model rocket is constructed with a motor that can supply a total impulse of 36.0 N·s. The mass of the rocket is 0.164 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance.
A flat sheet of paper of area 0.260{\rm m^{2}} is oriented so that the normal to the sheet is at an angle of 54^\circ to a uniform electric field of magnitude 18{\rm N/C}. Find the magnitude of the electric flux through the sheet
A small rocket maintains a constant thrust as to produce an acceleration of 2 m/s^2. determine the maximum achieved rocket thrust
A rabbit runs in a straight line with a velocity of +1.40 m/s for a period of time, rests for 12 s, and then runs again along the same line at +0.63 m/s for an unknown amount of time.
Suppose that the earth is a uniform sphere and that its path around the sun is circular. Determine the kinetic energy that the earth has because of its motion around the sun
Suppose you are climbing up stairs, gaining 10 meters of height per minute. In order to do that, your body has to do some work, using energy, at a given rate. What is the power produced by your body? Ignore energy losses.
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 1.7 × 10-4m2, find the cross-sectional area of the water stream at a point 0.11 m below the faucet
Suppose that an insulating container of negligible mass contains 0.12 kg of water at a temperature of 4 degrees C. what is the final mass (in kg) of the water in the system
A bag of sugar weighs 7.00 lb on Earth. Find the mass of the bag of sugar in kilograms at each of the three locations
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