Asimple pendulum of mass m and length l hangs from a trolley of mass m running on smooth horizontal rails. the pendulum swings in a plane parallel to the rails. using the position x of the trolley and the angle of inclination θ of the pendulum as generalized co-ordinates, find the hamiltonian and show that x is ignorable.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same