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Block A sits on a table and is in thermal equilibrium with the table. The internal energy of block A is 100 J. Block B sits on the same table and is also in thermal equilibrium with the table. The internal energy of block B is 200 J. The temperature of block A is 300 K. What is the temperature of block B?
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate (a) the radius of the orbit, (b) the linear momentum of the electron.
A mass spring system had k= 55.6 N/m and m=0.41 kg. Find the frequency of its simple harmonic motion
A particle is located at the vector position rarrowbold = (9.00i hat bold + 10.00j hat bold) m and a force exerted on it is given by Farrowbold = (8.00i hat bold + 7.00j hat bold) N
A ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m. The maximum possible value of angular velocity of ball is
A soccer playrer kicks a 0.5kg ball from rest to a speed of 9m/s during a 0.15s contact between his foot and the ball. What is the average force applied by the players foot during the kick
If the rubber of the balloon itself has a mass of 2.00 g and the balloon is filled with helium, calculate the net upward force (the "lift") that acts on it in air
Transverse waves with a speed of 42.5 m/s are to be produced on a stretched string. Calculate the wave speed in the string if the tension is 8.00 N
The energy levels of a localized particle are 0, epsilon , and 2 epsilon . The middle level is doubly degenerate and the other levels are nondegenerate. Write and simplify the partition function.
A statue is found in an Archaelogical dig. Its weight is measured to be 96 lb and its volume 0.08ft3. What is the statues weight density
A point charge +2.40 is held stationary at the origin. A second point charge -4.30 moves from the point = 0.175 , = 0 , How Much work is done by the electric force on q2
An unstable particle having mass of 5.00x10^-27 kg is initially at rest. Find the rest masses of the fragments
A cockroach of mass m lies on the rim of a uniform disk of mass 7.00 m that can rotate freely about its center like the merry-go-round. At first the cockroach and disk rotate together with an angular velocity of 0.220 rad/s. Then the cockroach walks ..
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