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Explain why the electrostatic interaction in ionic solids would (if alone) result in the collapse of the crystal to zero size and what it is that prevents this collapse in real crystals (be sure to be explicit)
An outboard motor propels a boat through the water at 13 mi/h. How much power is produced by the motor
A tin can is filled with water to a depth of 38cm . A hole 20cm above the bottom of the can produces a stream of water that is directed at an angle of 30? above the horizontal
An extremely thin film of soapy water (n = 1.30) sits on top of a flat glass plate with n = 1.11. What is the thickness of the film
Compare the distance he wanted to cover in the real world with the "theoretical" distance that could be covered if there was no air resistance - If the engine was close to 100% efficient how much petrol would be used to overcome air resistance duri..
An airplane propeller is 2.18m in length (from tip to tip) and has a mass of 117kg. What is the angular acceleration of the propeller
A person who is nearsighted has a far point of do = 4.8 m. Write an expression for the focal length of the glasses which will allow her to see distant objects clearly
A thin spherical shell made of plastic carries a uniformly distributed negative charge -7e-10 coulombs (indicated as -Q1 in the diagram). Two large thin disks made of glass carry uniformly distributed positive and negative charges 1.7e-05 coulombs..
Suppose two identical spheres are insulated: sphere A carries +3.54Q and sphere B carries -20.2Q, What is the charge on sphere A now
A hydrogen atom is in the inital state ni = n, where n > 1. Find the frequency of the electron's orbital motion
An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel
Neutron stars consist only of neutrons and have unbelievably high densities. Calculate the density of such a star
An Automobile engine slows down from 4500 rpm to 1200 rpm in 2.50 s. Calculate (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
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