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Two electrically charged spheres are separated by a distance of 10 metres. They experience a force of attraction equal to 5 Newtons. If the charge on one of the spheres is doubled, and the distance between them is also doubled, what would be the new force between the charges?
a racquet ball with mass m 0.252 kg is moving toward the wall at v 18.1 ms and at an angle of 25deg with respect to
A boat is heading upstream when a float is dropped overboard and carried downstream. What is the boats speed in still water
A 3.6 g spider is dangling at the end of a silk thread. You can make the spider bounce up and down on the thread by tapping lightly on his feet with a pencil. You soon discover that you can give the spider the largest amplitude on his little bunge..
A conducting rectangular solid of dimensions dx = 5 m, dy = 3m, and dz = 2m moves at a constant velocity V= 20 i m/s through a uniform magnetic field B = 30 mT j.
A very powerful vacuum cleaner has a hose 2.91 centimeter in diameter. With no nozzle on the hose, compute the weight of the heaviest brick that the cleaner can lift
A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high. What is their total energy at the top of the hill
In an attempt to determine the car's velocity midway down a 400-m track, two observers stand at the 165-m and 235-m marks and note the time when the car passes. What value do the two observers compute for the car's velocity over this 70m stretch?
A 289 kilogram log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. Determine what is the tension in the rope
Two equal parallel plate capacitors, each with area "A" and plate separation "d", areconnected in parallel with a voltage "V" applied between them. after the capacitors are fully charged the voltage source is removed. Given [A,d,V,K].
Two different balls are rolled (without slipping) toward a common finish line. Their angular speeds are shown to the right. determine how long does each ball take to reach the finish line
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
You have a concave spherical mirror with a 13.3-cm radius of curvature. You place an object on the mirror\'s axis, How far is the object's image from the mirror
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