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A car weighs 10000N. Each tyre has a pressure on the road of 50N/cm². 1.if the pressure is increased by 60N/cm² what will the area in contact with the road be 2. If the pressure is reduced will the area in contact with the road be reduced or increased
consider a solid sphere of radius 4 cm at a temperature of 19 degrees celsius. suppose the sphere is completely
A rock of mass m = 2 kg is tied to a string of length L = 1.9 m and is twirled in a vertical circle. The speed v of the rock is constant; that is, it is the same at the top and the bottom of circle.
2.2 mol of neon gas is initially at a pressure of 1.8 atm and a temperature of 253oc. i if the gas is cooled at
A 5.000kg mass starts from rest and slides down on an inclined plane, hits a bumper at the bottom of the inclined plane and bounces back up the inclined plane and comes to rest again. Through the collision with the bumper, 0.700J of energy is lost.
If a capacitor has the initial charge of 5.0uC, L = 0.080H, C = 10uF, and R = 0, What is the maximum energy stored in the inductor
you and maria each own identical spaceships. as you fly past maria you measure her ship to be 96 m long and your own
A 12 kg- hammer strikes a nail at a velocity of 8.5m/s and comes to rest in a time interval of 7.7 m/s. What is the average force acting on the nail
The aluminium wire in a high-voltage transmission line is 2.7 cm in diameter. It is designed to carry a current of 1100 A. What is the voltage drop across a 32-km-long segment of this power line?
The vertical deflecting plates of a typical classroom are a pair of parallel square metal plates carrying equal but opposite charges. how fast is it moving when it reaches the postive plate
A magnetic field can force a charged particle to move in a circular path. What is the period of the motion
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 7.00 km from the source, What is the average power radiated by the source
question1a 27 kg chair initially at rest on a horizontal floor requires a 377 n horizontal force to set it in motion.
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