I have an aluminum block sitting on the table, nearly cubical, shown to scale in the picture at right. I give it a push, and it slides across the table and comes to a stop after about 3 feet.

Estimate how much the block temperature rose as a result of sliding along the table.

Potentially useful things:

1in = 2.54cm, Q = mcT, Uint = Q - Wby, f = Fn ,W1D = Fx cos

Recall that friction work is uniquely unusual in its thermodynamic role; think of what really happens

when things are rubbed together! For convenience and consistency among you, here are some potentially needed constants for aluminum:

density = 2.7 g/cm3 specific heat c = 890 J/kg K Young's modulus Y = 7 x 1010 Pa

coeff of kin friction with wood: ~0.3