One of the more popular rumors about New York City is that dropping a penny from the top
of the Empire State Building can result in the
death of a pedestrian below. In reality, a penny,
dropped from rest, reaches a speed of only
100.0 m/s at the bottom of the tower. How long
does it take the penny to fall?

Anybody wanna ? (picture included? )

Which of the following is the best name for mgcl2

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?