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A high-voltage transmission line with a resistance of 0.325 /km carries a current of 1.30 kA. The line is at a potential of 750 kV at the power station and carries the current to a city located 149 km from the power station. What is the power loss due to resistance in the line?
What fraction of the transmitted power does this loss represent?
A thermometer containing 0.10 g of mercury is cooled from 14.0° C to 8.1° C. How much energy was lost by the mercury in this process
The mass density of crystalline carbon (diamond) is 3.50×103kg/m^3. Calculate the number density of carbon atoms per cubiccm.
a 1.0m length of straight wire carries a current of 21 a in a uniform magnetic field of 60 mt whose direction is at an
A 9200 kg boxcar traveling at 18 m/s strikes a second boxcar at rest. The two sticktogether and move off with a speed of 12m/s. What is the mass of the second car
For a simple harmonic oscillator with k = 4.0 N/m and A = 0.75 m, the time between maximum velocity and maximum acceleration is 2.50 s. (a) what's the oscillation period? (b) What's the mass? (c) find the maximum velocity and maximum acceleration.
A snow surface has a temperature of -10C. What is the full spectrum remittance (assuming that snow can be treated as a blackbody for long wave radiation)?
A bullet is moving at a speed of 410 m/s when it embeds into a lump of moist clay. The bullet penetrates for a distance of 0.0721 m. Determine the acceleration of th ebullet while moving into the clay.
Two forces, vector F 1 and vector F 2, act on the 5.00 kg block shown in the drawing. The magnitudes of the forces are F1 = 48.0 N and F2 = 39.0 N. What is the horizontal acceleration (magnitude and direction) of the block?
An engine develops an output of 117 hp when rotating at 2300 rpm. Compute the output torque
a variable force f(x) =8x^3 -2x acts on a 2.4 kg objects movinf it from x=0.2 to x=1.4 m. what was the work done on the object
three resistors of 75, 50 , 100 ohms are connected to a 9 volt source. determine the power dissipated by the circuit
A sealed box is placed inside a sealed container. A pressure gage attached to the box reads 60.0 kPa, what is the absolute pressure inside the box
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