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A 8760-kg car is travelling at 29.7 m/s when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 13.3 m/s, and it is h = 13.1 m above the freeway. What is the magnitude of the average drag force exerted on the car?
How much work does the electric field do in moving a -7.7 microCoulomb charge from ground to a point whose potential is +positive 55V higher.
a 1000kg car experiences a total power of 150hp (horsepower) if it starts from rest what is the magnitude of the velocity of the car in miles per hour 10s later
How many electrons would have to be removed from one sphere and added to the other to cause an attractive force between the spheres of magnitude 1.00 x 10^4 N (roughly one ton)? Assume that the spheres may be treated as point charges.
In a friction experiment, your wooden plank is horizontal. When a mass of 100 grams is hanging on the weight hanger of mass 50 grams, a slight push makes the block move at a constant speed along the plank. If the mass of a wooden block is 500 gram..
A 4.80 long, 600 steel beams extends horizontally from point where it has been bolted to the framework of a new building under construction. A 75 construction worker stands at the far end of beam.
A spherical balloon has a radius of 8.45 m and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of balloon have a mass of 1300 kg? Overlook the bouyant force on the cargo volume itself.
Illustrate at what angle should a curve of radius 140 m be banked, so cars can travel safely at 33 m/s without relying on friction?
A perfectly insulated system has work done by it at a rate of 13 W. At what rate is the internal energy of the system changing?
An airplane pilot wishes to fly due west. A wind of 72.0 km/h is blowing toward the south, What is the speed of the plane over the ground
A woman rides a carnival Ferris wheel at radius 16.0 m, completing 4.40 turns about its horizontal axis every minute. What are (a) period of the motion, and the magnitude of her centripetal acceleration at (b) highest point and (c) lowest point.
A 3.4 k and a 2.4 k resistor are connected in parallel; this combination is connected in series with a 1.8 k resistor. If each resistor is rated at 1/2 W (maximum without overheating), what is the least voltage that can be applied across the whole..
You are trying to slide a refrigerator across a horizontal floor. The mass of the refrigerator is 188kg, and you require to exert a force of 347N to make it just begin to move. What is the coefficient of static friction between floor and refrigera..
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