Clark kent invented an anti-kryptonite device on may 1, 2016. unbeknownst to clark, lex luthor also invented the identical device on april 30, 2016. clark, using superhuman typing speed, files his application the same day (may 1.) lex put his application in the mail (and he has a postmark to prove it) on may 1. who wins the patent?

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Which governments provide garbage collection services to homes and businesses