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Two atoms will interact via electronical forces between their protons and electrons. One fairly good approximation to the electrical energy is the Lennard-Jones formula U(r)=k[(a/r)^12 - 2(a/r)^6] where r is the center-to-center distance between the atom and k is a positive constant. a) plot U vs r. b) determine the force that goes with this potential. c) show that the equilibrium separation is a. d) what is the effective spring constant about the point r=a?
Carbon 12 is defined such that 12g is one mole. So if a diamond is 37.5 g, how many moles of carbon are in it? How many molecules of carbon are in it
A system consisting entirely of electrons and protons has a net charge of 1.64×10?15C, How many electrons and protons are in this system
The during an Apollo moon landing, reflecting panels were placed man the moon. find the distance between the astronomers and the moon
A bowling ball of mass 2.7 kg and radius 9.5 cm rolls from rest, What is the speed of the ball at the bottom of the incline
The "Analyze an Issue" task assesses your ability to think critically about a topic of general interest and to clearly express your thoughts about it in writing. Each Issue topic makes a claim that can be discussed from various perspectives and ap..
What observations can one make to prove that something is flowing through wires connected to aligh tbulb and a batery?
15.0 meters from a sound source that radiates freely in all directions, the intensity is 0.00105 W/m2. What is the rate at which the source is emitting sound energy
Imagine for a moment that the moon is held in its orbit about the earth by electrical forces rather than by gravitation. What is the necessary electrical charge -Q that would be on the earth and +Q that would be on the moon to hold the moon in a circ..
a physics student swings a pail of water in a vertical circle 1.0 m in radius at a constant speed. if the water is not
Suppose you have a spherical balloon filled with air at room teperature and 1.0 atm pressure; its raidus is 12cm. what's the balloon's new radius
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). What is the speed at which the satellite travels
How high will a 0.32kg rock go if thrown straight up by someone who does 119J of work on it? Avoid air resistance.
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