Max K: What will be the equilibrium temperature when a 277 g block of copper at 322°C is placed in a 175 g aluminum calorimeter cup containing 820 g of water at 12.8°C?
An answer and a explanation would be helpful
I value the explanation over justthe answer

Moises Z: (A) How far up the plane does it go? (B) How long does it take to get there? (C) What is its speed when it gets back to the bottom? Find numerical answers for theta = 31.1 degrees and v = 3.45 m/s.
Explanation please???
Thanks! i got it!
to get the acceleration i used a= [...]

Martin Jessen: Consider a harmonic oscillator at four different moments, labeled A, B, C, and D, as shown in the figure http://session.masteringphysics.com/problemAsset/1003620/23/1003620.jpg .
Assume that the force constant k, the mass of the block, m, and the amplitude of vibrations, A, are given. Assume that there are no resistive forces; that is, E=constant.
Consider the [...]

ricahrd l: A 40 g block of ice is cooled to -76°C. and is then added to 640 g of water in an 80 g copper calorimeter at a temperature of 28°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. Remember that the ice must first warm to 0°C, [...]

Taj: You pull with a force of 225 N on a rope that is attached to a block of mass 26 kg, and the block slides across the floor at a constant speed of 1.3 m/s. The rope makes an angle of 25 degrees with the horizontal.
A) What is the net force on the block?
B) [...]

phaegmoristic: What is the heat capacity of the wood?

annettejones15: On a cold winter day, the outside temperature is −5.0 °C while the interior of a well-insulated garage is maintained at 20.0 °C by an electric heater. Assume the walls have a total area of 75 m2, a thickness of 0.15 m, and a thermal conductivity of 0.042 W/(m · C°). [...]

friend: Two identical blocks, each of mass M, are connected by a light string over a
frictionless pulley of radius R and rotational inertia I. The string does not slip on
the pulley, and it is not known whether or not there is friction between the plane
and the sliding block. When this system is released, it is [...]

hafsa a: 3 A 4.8kg block on a 39O inclined plane is acted on by a horizontal force of 46N (see the figure below) . The coefficient of kinetic friction between block and plane is 0.33.
(a)What is the acceleration of the block if it is moving up the plane?
(b)With the horizontal [...]

The Trickster: In the Figure http://img225.imageshack.us/img225/8613/delete3cv1.gif
the coefficient of kinetic friction between the two blocks shown is 0.44. The surface of the table and the pulleys are frictionless.
(b) Determine the magnitude of the acceleration of each block.
2kg block, 3kg block, & 10kg block
(c) Find the tension in the strings.
T1 & T2