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1. An aluminum sphere is 5.50 cm in radius. What is its volume expansion coefficient if it increases in volume 2.00 cm3 when heated from 100 oC to 151 oC?
2. 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?
3. 400 L of water is at 4 oC. If it took a heat 600 seconds to heat this up to 6 oC, what is the power rating of the heater?
4. A 95g cup of tea at 85 oC is poured into a 1.25 L large tub of water at 30 oC . What is the equilibrium temperature?
5. 150 g of ice at -10.5 oC is raised to the melting point and then raised to 76.0 oC. How much heat is added to the system?
6. A distant star is 7000 K and radiates 1.20 x1027 W. What is the star's radius?
in an electrically heated home the temperature of the ground in contact with a concrete basement wall is 12.0 oc. the
A 63.0 ?F capacitor is connected to a generator operating at a low frequency. at what frequency will the fuse burn out
What is the CD's moment of inertia for rotation about a perpendicular axis by the edge of the disk.
light of wavelength 6.7x10^-7m travels first through air, and then enters a medium of higher index of refraction. what is the new speed of the light wave
find the net force acting on a 2.50 c charge placed at the origin from 3 equal charges of -1.25c placed at the
A motorboat heads due east at 11.00 m/s across a river that flows toward the south at a speed of 3.40 m/s. What is the resultant velocity relative to an observer on the shore? If the river is 1360m wide, how long does take the boat to cross.
Estimate the number of breaths taken by a human being during an average lifetime
A 0.0400 kg golf ball initially at rest is given aspeed of 35.0 m/s when a club strikes.If the club and ball are in contact for 2.00 ms, what average force acts on the ball
a 3.00 m long rod is hinged at one end the rod is initially held in the horizontal position and then released as the
A spring has a spring constant of 578N/m. When used tosuspend an object in the air, the spring stretches by0.0640m. What buoyant force acts on the object
The drawing shows a top view of a square room. One wall is missing,and the wall on the right is a mirror. From point P in the center of the open side, a laseris pointed at the mirrored wall.
A single loop of copper wire moves at an unknown constant speed v into a region of uniform magnetic field B = 5.00 T. Calculate the induced current in the copper wire loop
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