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An asteroid of mass 58,000 kg carrying a negative charge of 15.0 ?C is 180 m from a second asteroid of mass 52,000 kg carrying a negative charge of 11.0 ?C. What is the net force the asteroids exert upon each other? (G = 6.673 × 10-11 N•m2/kg2 and k = 9.0 × 109 N•m2/C2.)
A hiker's trip consists of three segments. Path A is 7.00 km long heading 60.00 degrees north of east. Path B is 6.00 km long in the direction due east. Path C is 5.00 km long heading 315 degrees counter clockwise from east. Graphically add hiker's d..
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. what is the magnitude of the average current in this region
A 14.40 kg block and a 25.3 -kg block are resting on a horizontal frictionless surface. Between the two is squeezed a spring (spring constant = 1108 N/m).
we have a tuning fork with a frequency f resonating in a cavity with an open top of width 2.54cm and a length of 20.4cm at 20 degrees celsius and one atm
Two 24 cm focal-length converging lenses are placed 16.50 cm apart. An object is placed 39.0 cm in front of one. Where would the final image formed by the second lens be located.
a rifle with a mass of 2.5 kg fires a bullet with a mass of 0.0045kg. the bullet moves with a muzzle velocity of 350m/s after the rifle is fired
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the electrical repulsion that each bag exerts on the other.
a 30 kg child stands on the edge of a stationary merry-go-round of radius 2.0 m. What is the angular speed of the merry-go-round just after the ball is caught
A closed system is observed to have 17 objects in it. Initially, the total energy of the system is 4714 J. After 1.7 h have passed, how much total energy will the system contain
A distant galaxy is moving away from the earth with a speed that results in each wave- length received on the earth being shifted, Find the speed of the galaxy relative to the earth
You are an astronaut (m = 100 kg) and travel to a planet that is the same radius and mass as the Earth, What is your apparent weight at the equator of this planet
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 550 m to be the other plate. How much charge can the cloud hold before the dielectric strength of the air is e..
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