The weight of a column of air pushing down over an area is called which of
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these?
A. density
B. volume
C. mass
D. air
pressure


What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above

One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.