A light bulb has a resistance of 144 Ω and is designed for use with a 120 V power supply. What is the power output of the light bulb? If the bulb is accidentally connected to a 240 V power supply, what would be the power output of the light bulb? Why might this be dangerous? What resistance would be needed in a light bulb that works on 240 V so that it would have the same brightness as the original light bulb?

Inelastic is the answer your looking for.

Texas-flood watch and coastal flood barrierscalifornia-try and look for under ground water stream 

The answer to the question is (a)   

The figure is missing but we can answer anyway.the correct answer is "releasing the string". in fact, when the person is holding the bow and the arrow, the kinetic energy of the arrow is still zero (because the arrow is not moving). the moment the arrow is released, it acquires a velocity v, so its kinetic energy will become different from zero: where m is the mass of the arrow and v its velocity.  all the other options, instead, do not increase the kinetic energy of the system: -  pulling farther back on the string : this will just increase the elastic potential energy of the system-  holding the arrow higher: this will increase the gravitational potential energy of the system (which is given by u=mgh, where h is the height above the ground)-  decreasing the mass of the arrow: this will decrease the gravitational potential energy of the system (which is given by u=mgh, where m is the mass)