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Two tugboats pulls a disabled supertanker. Each tug exerts a constant force of 1.80x106 N, one of them at an angle of 14° west of north and the other 14° east of north. As they pull the tanker 0.75 km toward the north. What is the total work they do on the supertanker?
A 676kW power station delivers power to a factory, How much less power is wasted in the transmission wires if the electricity is delivered from the power station at 54200V rather than 13700V
A quarter, having a radius of 1 cm. and a thickness of 1.3 mm., is placed in a uniform E field of 6300 N./C. What is the net positive charge on one of the faces of the coin
predict how to changing the variables may effect the distance traveled or the speed of the race car.
A circular coil of radius 6.0 cm has 1500 turns and a total resistance of 0.25. Initially it is in a region with a uniform magnetic field of 0.25 T perpendicular to the coil area. Find the average emf induced in the coil
An airplane with a speed of 77.7 m/s is climbing upward at an angle of 45.5 ° with respect to the horizontal. Relative to the ground, determine the angle of the velocity vector of the package just before impact
A 14292 kg railroad car is rolling at 1.21 m/s when a 3365 kg load of gravel is suddenly dropped in. What is the cars speed just after the gravel is loaded
A block starts with a certain speed at the top of a frictionless inclined plane with an unknown angle to the horizontal. To calculate the time required for the block to reach the bottom of the plane
A solenoid of radius 1.1 cm produces a magnetic field at its center is 0.28 T. What is the magnetic flux by the center of the solenoid.
Hanging from threads are two charged balls made of pith (a very light, spongy material that comes from inside the stems of certain plants). The balls each have a mass of 0.100 g and a charge of the same magnitude q and are attracted toward each ot..
A typical wind speed at midlatitudes at 700 hPa might be 40 knots, while synoptic scale vertical motion is 10 cm/s. what is the magnitude of the total flow
q1. youre carrying a 4.0-m-long 25 poles to a construction site when you choose to stop for a rest. you place one end
A chair of mass 13.0kg is sitting on the horizontal floor; the floor is not frictionless, Use Newton's laws to calculate the normal force that the floor exerts on the chair
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