Find kinetic energy of an electron confined to given region
For an electron to be confined to an nucleus, its deBroglie wavelenth would have to be less than 10 to the power -14m. What would be the kinetic energy of an electron confined to this region?
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What constant torque is required to bring it up to an angular speed of 390 in a time of 8.50 , starting from rest? What is its final kinetic energy?
Find the acceleration of the crate if the applied force is 380 , the mass of the crate is 32 and the coefficient of kinetic friction is 0.42
What is the greatest distance at which these headlights can be resolved as separate points of light on a photograph taken with a camera whose aperture has a diameter of 11.5?
A 165 pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a battery with an emf of 21.3 V. If the 165 pF capacitor stores 112 pC of charge on its plates, what is the unknown capacitance?
75- block at rest on a ramp of height . When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 that has a coefficient of kin
You need to move a 144-kg sofa to a different location in the room. It takes a force of 109 N to start it moving. What is the coefficient of static friction between the sofa and the carpet?
Consider the 400-kg beam shown below. What point should I use for torque origin? What point should I use for torque origin?
If you were moving at 12 m/s and you heard a train whistle at a freqncy of 436 Hz, but the actual sound frequency was 412 Hz, how fast was the train moving?
The initial velocity of the clay is 15.5 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
518.0 without breaking, and cable B can support up to 410.0 . You want to place a small weight on this bar. What is the heaviest weight you can put on without breaking either cable?
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