1. A 55kg olympic diver can jump .65 m high on solid ground. With the help of bouncing on the diving board, she can jump 2.5 m above the board. How much elastic energy is stored in the diving board? (Hint: make the initial situation when the diving board is bent down the most and the final situation when the diver is at her highest point.)

70 give a real life example showing how sensory neurons work with the motor neurons

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?