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An automobile moves at a constant speed over the crest of a hill. the driver moves in a vertical circle of radius 17.5m. at the top of the hill, she notices that she barely remains in contact with the seat. find the speed of the vehicle.
what are some popular voltagecurrentresistance analogies? what are some ways you have learned about or will learn about
A 3 ohm resistor is mounted in parallel with a resistor R=11 ohm , and this combination is connected in series with an 4 ohm resistor and a 12 Volts battery. What is the current through the R resistor? Amp
A gun shoots bullets that leave the muzzle with a speed of 205m/s. If a bullet is to hit a target 151m away at the level of the muzzle, the gun must be aimed at a point above target.
The potential energy stored in the compressed spring of a dart gun, Find by how much is the spring is compressed
An elevator moves downward in a tall building at a constant speed of 4.00 m/s. Estimate the highest floor from which the bolt can fall if the elevator reaches the ground floor before the bolt hits the top of the elevator
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, what is the coefficient of kinetic friction
A pendulum hangs from an inclined wall. Suppose that this pendulum is released at an initial angle of 10 degrees and it bounces off the wall elastically when it reaches an angle of -5 degrees
A boy of mass 48.3 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. Find the final velocity of the skateboard
A helicopter lifts a stretcher with a 74 kg accident victim in it out of a canyon by applying a vertical force on the stretcher. what power is deliever by the helicopter
It is desired to slip an aluminum ring over a steel bar. At 10 the inside diameter of the ring is 4.550 and the diameter of the rod is 4.580. Find the temperature at which the ring can be removed
Inside a sealed wooden box of mass M there hangs, by a thread of negligible mass, a lead pellet also of mass M. What is the acceleration of the center of mass of the system of box
Travelling at a speed of 17.10 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.740. What is the speed of the automobile after 1.81 s have el..
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