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A wooden pole is 4.00m long , weighs 315 N , and has its centerof gravity 1.50m from one end. What force is needed to lift each end?
A block of mass 0.570 kg is pushed against a horizontal spring of negligible mass until the spring is compressed a distance x. The force constant of the spring is 450 N/m.
A doubly charged helium atom whose mass is 6.6 * 10^- 27 kg is accelerated by a voltage of 2400 V. What is its period of revolution
With an internal pressure of 5.245E6 a two mole sample of ideal gas at 200°C in a container of volume 1.5L is increased to 400°C. By what factor does the pressure increase
A 1400kg sedan goes through a wide intersection traveling from north to south when it is hit by a 2400kg SUV traveling from east to west. How fast was sedan traveling just before the collision
q1. a sanding disk with rotational inertia 2.4 10-3 kgbullm2 is attached to an electric drill whose motor delivers a
A bullet having a velocity of 680 m/s hits a target 510 m away. If the speed of sound is 340 m/s, how soon after the bullet hits the target does the sound of the shot reach the target ?
Two resistors have resistances R(smaller) and R(larger), where R(smaller)
A beanbag is thrown horizontally from a dorm room window a height h above the ground. find the direction of the beanbag's velocity just before impact
An automobile suspension involves both leaf springs with stiffness k and shock absorbers resist motion with a force -uv. The system is critically damped. If a car has mass 2000 kg and has shock absorbers with u = 2.5 x10^4 kg/s, how much should the c..
q1. a ball on a porch rolls 60 cm to the porchs edge drops 40 cm continues rolling on the grass and ultimately stops 80
A cannonball is dropped from the top of a building. If the point of release is 44.8 m above the ground, what is the speed of the cannonball
A high speed train is traveling at a constant 150 m/s ( about300mph) on a straight, horizontal track across the south pole. In What directionis the plumb line on the train deflected
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