Homework Statement
A 2.0x10^2 g pendulum bob is raised 22cm above its rest position.The bob is released, and it reaches its maximum speed as it passes the rest position.
Calculate its maximum speed at that point by applying the law of conservation of energy and assuming that the efficiency...
Homework Statement
What will be the equilibrium temperature when a 245-g block of copper at 285° c is placed in a 145 g aluminium calorimeter cup containing 825 g of water at 12°c?
Homework Equations
q=mcΔt
qlost+qgained=0
-qlost=qgained
-m1c1t1=m2c2t2
The Attempt at a Solution...