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Consider the daughter of radon 222 through alpha decay. A sample, which initially contained 10 moles of this daughter particle, had 1.08999 kg left after 1.55 minutes.
a) calculate the atomic mass of that isotope of Po.
b) The Po would also undergo alpha decays.
Calculate the average KE of the alpha particles if the Po was initially at rest
A 5.40×10-2- wad of putty is thrown horizontally at the block, hitting it with a speed of 2 and sticking. far does the putty-block system compress spring.
You are standing on the road as a garbage truck recedes from you ata speed of 30 m/s. The trucks backup signal sound has a fixed frequency of 300 Hz. What frequencies do you hear from each garbage truck?
2.28 kg of water are changed from ice at 0degc into liquid water at 0degc. the latent heat of fusion for water is lf
the shaft of a pump starts from rest and has an angularacceleration of 3.00 rad/s2 for 18.0s. find the angle through which the shaft has turned
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a horizontal rifle is fired at a bulls -eye. the muzzle speed of the bullet is 670ms the gun is pointed directly at the
The unpolarized light of intensity I(not) is passed through two polarizers with axes oriented at 30degrees from each other. What intensity of light emerges
In an R-L-C series circuit the magnitude of the phase angle is 52.9? with the source voltage lagging the current. The reactance of the capacitor is 360? , Find the reactance of the inductor
question a metal sphere is insulated electrically and is given a charge. if 25 electrons areadded to the sphere in
Two blocks rest on a horizontal frictionless surface, the topblock is 5 kg and the bottom block is 10 kg. What is the acceleration of the "two block"system
A sperical source ratiates sound uniformly in all directions. At a distance of 18m, the sound intensity level is 100dB. what power is radiated by this source
in what way is the npv consistent with the principle of shareholder wealth maximization? what happens to the value of a
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