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Calcium carbonate, CaCo3, can be in two different solid phases, calcite or aragonite. Which phase is more stable at room temp? At what pressure are both phases stable?
Hint: You might find it helpful to use the fact that 10 cm^3= 1kJ/kbar.
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
Two wheels can rotate freely about fixed axles through their centers. The wheels have the same mass, but one has twice the radius of the other. Compare the magnitudes of the two forces
A child is riding a merry-go-round which completes a revolution every 8.36 s. The child is standing 4.65 m from the center of the merry-go-round. Evalute the magnitude of the centripetal acceleration of the child?
The lowest frequency standing wave pattern that can be made on a certain string on a cello is 220Hz (which is a musical "A" note). calculate the frequency of the 3rd overtone
We compared two cases: single phase delivery (call the wasted power P1), and 2-phase delivery (P2), Find the ratio P1/P2 when load 1 = 3.1 A, load 2 = 7.4 A, and each delivery wire has a resistance of 0.25 ohm
The desperate contestants on a TV survival show are very hungry. The only food they can see is some fruit hanging on a branch high in a tree. With what speed does the rock leave the spring
What is an electric potential at a point
A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of +16.6 m/s in a time of 34.3 s, What is the tension in the hitch that connects the trailer to the car
A point charge 5.00 nC is at the center of a cube with sides of length 0.140 m. What is the electric flux through one of the six faces of the cube
A string length 2.0 m and linear mass density 25.0 mg/m vibrates at a fundamental frequency of 450.0 Hz. What is the speed of the transverse strin waves
A 50,000 kg locomotive is traveling at 50.0m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop
Assuming you can't use the electric heater, you put 0.2kg of water at 20(C) in a thermous. If you move the water up and down a height 10cm twice/second, how long must you shake the water to raise the temperature to 100(C)?
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