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Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.4545 N when separated by 50 cm, center-to-center. The spheres are then connected with a thin conducting wire. When the wire is removed, the spheres repel each other by an electrostatic force of 0.3568 N. What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here.
Air passes through a large-diameter glass tube, then through a small-diameter tube, and finally through a large-diameter tube again, Find the velocity of the air in the small-diameter tube
A 2.30 kg mess kit sliding on a frictionless surface explodes into two 1.15 kg parts: 2.32 m/s, due north, and 5.90 m/s, What is the original speed of the mess kit
A tightrope walker walks across a 30.0 m long wire tied between two poles. what is the mass of the tightrope walker
A painter is standing on scaffolding that is raised at constant speed. As he travels upward, he accidentally nudges a paint can off the scaffolding and it falls a distance 15.4m to the ground. find the speed of the can just before it hits the groun..
You are playing college basketball and some time after crossing the midcourt line you shoot the ball at an angle of 53 degrees above the horizontal. how many points did you score
Two hockey players( one of mass 10 kg, and the other of mass 15kg) are skating and collide and stick together.? the velocity of the first sketer is 10 m/s, the other is 17 m/s. what is their speed at the moment of the collision? question: is there a ..
A computer disk drive is turned on starting from rest and has constant angular acceleration. Determine what is its angular acceleration
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 6.00×10?11 mm of Hg, determine the mean free path of a molecule
A23.0-mW laser beam of diameter1.85mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
Light in a vacuum is incident on a transparent glass slab. The angle of incidence is 38.8°. What is the index of refraction of the liquid
a skier of mass 105 kg travels down a ski trail of height 240m. if the skier has a speed of 40 ms at the bottom of the
a radio wave, sent from mars to the earthwhen the two are closest to eachother, takes 3.03 minutes. calculate the distance between perihelion and aphelion for mars
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