A m = 3 g bullet traveling horizontally at 400 m/s hits a M = 3 kg wooden block,
which is initially at rest on a smooth horizontal table. The bullet buries itself in the block
without passing through.
The speed of the block after the collision is:

In a system, when potential energy decreases, then entropy also decreases. true false

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical