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Calculate the change in electric potential energy (Ep) for a parallel plate capacitor that has a potential difference of 1.5 x 103 V, if an electron is moved from one plate to the other
In a classic model, the electron of a hydrogen atom circles the proton at a radius of 1.3225x 10-9 m when it is in the n=5 state. What is its electric potential energy?
During our "field trip" to the Dept. of Physics cloud chamber, you should have observed the formation of tracks. If you didn't, please go back and have a look since if you are by yourself you'll have plenty of room to see. Which of the following i..
Examine the normalization condition as applied to the second-state wave function. Can you see a way to apply the results of (a) and (b) to evaluate the integral? [Hint: What happens if you regard the SHO parameter a as a variable and differentiate..
A ladder 6.10 m long leans against the side of a building. If the ladder is inclined at an angle of 76° to the horizontal, what is the horizontal distance from the bottom of ladder to the building.
The star Betelguese has a radius and surface temperature of about 10^8 miles and 3000K. The sun has a radius and surface temp of about 5x10^5 miles and 6000k. Find the ratio of the power radiated by the sun and Betlguese Psun/Pbet.
The force constant of a spring is 500 N/m and the unscratched length is 0.64 meter. find the external force on the block before it is removed
We know the speed on the X-axis and have the thrust required curve; that gives us the intercept point on the curve through which the horizontal/constant thrust.
stan accelerates from a standing start at 2 ms2 and one second later kathy accelerates from a standing start at the
Two balls make up a closed system. Ball A has315 J of energy and ball B has767 J. After they collide, ball A has605 J. How much energy does ball Bhave after they collide?
A 50 kg woman stands on the back of a 6 m long, 125 kg raft that is floating at rest in still water with no friction. The raft is 0.50 m from a fixed pier.
An electric motor rotating a workshop grinding wheel at a rate of 81 rev/min is switched off. Suppose the wheel has a steady negative angular acceleration of magnitude 1.90 rad/s2.
A physics book is thrown horizontally 20m/s out of a 5m high window. How far horizontally did the student throw the book
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