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The potential energy of two small particles in water is approximately:
U(r) = A/r - B/r^6
where r is the spacing between the particles
Write down a formula for the force between them.
Calculate the wavelength ?1 for gamma rays of frequency f1 = 6.40×10^-14 Now express this gamma-ray wavelength in nanometers
A 7650kg iceberg with density 931 kg/m3 is afloat in seawater with density 1030 kg/m3. find the buoyant force on the iceberg
Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. what is the length (in m) of the fiber
Two blocks with masses m = 16.7 kg and M = 70.1 kg are not attached. The coefficient of static friction between the blocks is 0.45 but the surface beneath M is frictionless. What is the minimum force F required to hold m against M?
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
Jill jumps off the diving board with a velocity of 1.7 m/s at 38 degrees above horizontal. if the water surface is 2 meters below the board: A. how long will it take for her to hit the water? B. where will she hit the water? C. with what velocity ..
A uniform disk of mass .53kg and radius 11cm is constrained to rotate on an axis about its center. find the KE attained by the system
A tennis ball gun launches tennis balls at 17.6 m/s . It's pointed straight up and launches one ball; 2.0 s later, What is the second balls' velocity at that point
While visiting Planet Physics, you toss a rock straight up at 14m/s and catch it 2.5s later. determine the mass of Planet Physics
A parallel plate capacitor has an electric field between its two plates of 525,000 V/m. The two plates are 2.2x10-5 m apart. find the speed of the proton when it reaches the negative plate
For an atom (mythical), there are three possible energy levels between which an electron can jump
You push with a 20N horizontal force on a 2 kg mass resting on the horizontal surface against a horizontal friction force of 12N. What is the acceleration.
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