What is the best way to define work?
a. applying force for a period of time.
b. moving a certain distamce
c. appying a force over a distance
d. appying force at a given speed?

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6