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A power plant burns coal and generates an average of 600.0 MW of electrical power while discharging 996.00 MW as waste heat. Find the total electrical energy generated by the plant in a 30-day period.
compass needle points 25 degrees E of N outdoors. However, as it is placed 17 cm to the east of a vertical wire inside a building it points 61 degrees E of N. What is the magnitude of the current in the wire? The earth field there is 0.50X10^-4 T ..
The movement of the water because of the tides will give kinetic energy to the turbine blades, causing them to spin. In the calculations that follow ignore any frictional drag because of the seawater.
A 2.16 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0320 m. The spring has force constant 840 N/m.
A disk, initially rotating at 149 rad/s, is slowed down with a constant angular acceleration of magnitude 4.23 rad/s2. (a) Explain by how much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time?
A parallel-plate capacitor has a capacitance of c1 = 3.5 uF when filled with air and c2 = 23 uF when filled with a dielectric oil at potential difference of 12 V. What is the permittivity of this oil
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
Four identical charges, +Q, occupy the corners of a square with sides of length a. A fifth charge, q, can be placed at any desired location. Find the loction of the fifth charge, and value of q, such that the net electric force acting on each of t..
How long does it take for the top to complete first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
Seat belts and air bags save lives by reducing the forces exerted on the driver, A 58kg person is in a head-on collision. The car's speed at impact is 13m/s. Estimate the net force on the person if he or she is wearing a seat belt and if the air ..
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. A screen is placed 1 m beyond the slit. How far apart will the first dark bands on either side of the central maximum be?
What is the magnitude of the apparent weight of a 66 astronaut 4500 from the center of Earth's Moon in a space vehicle moving at constant velocity?
Find the work done by this force on the particle and the final speed of the particle as it moves along a path.
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