2points
maria was riding her bike at a velocity of 3 m/s to the north. her velocity
changed to 11 m/s to the north. what was her change in velocity?
a. -8 m/s north
o
b. 3 m/s north
o
c. 8 m/s north
o
d. 14 m/s north

Need on both questionswill markbr />

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?