Occam's razor states that A. patterns in nature are really manifestations of random occurrences.
B. the laws of nature are the same everywhere in the universe.
C. if two hypotheses fit the facts equally well, choose the one with fewer assumptions.
D. the universe is expanding in all directions.

Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

If a star is moving toward earth, it is