Alexander graham bell used an electrical wire to
a. transmit radio waves.
c. transfer power to machines.
b. build a better light bulb.
d. send voices over long distances.

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

Explain why you think this diagram shows what happened to the carbon in the biodome.