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A crane raises a load by a cable. If the total mass of the load is 1500kg and the tension in the cable is 23500N, calculate the upwards acceleration of the load.
Two non conservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. What is the transform in the car's kinetic energy, ΔKE = KEf - KE0, from A to B.
A total charge of 14 mC passes through a cross-sectional area of a nichrome wire in 1.4 s. I need to know how many electrons pass through the cross-sectional area in 23.0 s
A fission-based nuclear bomb (such as those used in World War II) uses the same nuclear reactions, What is the average power Pavg of such a nuclear bomb
Show that the total charge contained in the charge distribution is Q. Show that the electric field in the region r = R is identical to that produced by a point charge Q at r = 0.
What is the average useful power output of a person who does 7.35x106 J of useful work in 6.50 h?
What is the distance between the mirror and the image (negative result for a position behind the mirror, a positive result for a position in front of the mirror)?
how much work is required to turn an electric dipole 180deg in a uniform electric field of magnitude e 42.0 nc if p
Suppose you measure a delay of 0.3 s between seeing the drum strike and the sound. What is the corresponding distance? Express your answer in football fields.
At a particular point, a satellite in an elliptical orbit has a gravitational potential energy of 7000 MJ with respect to Earth's surface and a kinetic energy of 4000 MJ. At another point in its orbit, the satellite's potential energy is 2000 MJ...
Four identical charged particles (q= +10.0µC) are located on the corners of a rectangle. find the direction of the total electric force exerted on the charge at the lower left corner by the other 3 charges
Explain the forces and changes a electron undergoes as it forms an intramolecular bond with oxygen to form water molecule.
suppose the motion in problem 3.7 is taking place in a viscous medium. in 16 seconds the amplitude reduces to half of
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