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An electron and a proton attract each other with a 1/ r2electric force, just like the gravitational force. Assume that an electron moves in a circular orbit about a proton with a period of the circular motion of 16.06 hour. Determine the radius of the orbit? (Note, this is an unrealistic situation!)
Four objects are situated along the y axis as follows: a 2.01 kg object is at +3.16 m, Where is the center of gravity of this system
An engine absorbs 3,470 J of heat energy each cycle and expels 1,150 J. If it is a reversible heat engine and the hot reservoir is at 730 K, what is the temperature of the cold reservoir
A compound microscope uses a 73.0mm lens as the objective and a 2.1cm lens as the eyepiece. find the total magnification produced by the microscope
Write down the mathematical relationship between velocity (v) and time (t) for a coin tossed up into the air after it leaves the thrower's hand at t=0 with a velocity of +15.0 m/s. Assume that the positive direction is upward and the acceleration of ..
A bowling ball of mass 6.50 kilogram and radius 9.82 centimeter rolls without slipping down a lane at 3.32 m/s. determine its total kinetic energy
A student records the temperature of the gas is as he increases the pressure inside the container and plots the data in the graph shown below, How many moles of gas are inside the container
what is the charge on the surface of a conducting sphere of radius 0.20 m whose potential is 450 v with v 0 at
Consider 10 air molecules in an otherwise empty room. Find the probability that exactly four molecules are in the front third and exactly six in the top half, exactly three molecules are both in the front third and the top half (that is, the same mol..
Two cars emerge side by side from a tunnel. Car C is traveling at a speed of 60 km/h with an acceleration of 40 km/h/min. find who is first to come out of the tunnel first
An ice skater is gliding horizontally across the ice with an initial velocity of +6.46 m/s. How much time elapses before her velocity is reduced to +2.69 m/s
an object with a mass of 4kg is on a table and 2m away from another object with mass 10kg. find the center of gravity of these objects
A stationary particle of charge q = 2.4 × 10-8 C is placed in a laser beam (an electromagnetic wave) whose intensity is 2.7 × 103 W/m2. Determine the maximum magnitude of the electric force
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