Acar suddenly slams on its brakes and skids west for 8 m before stopping. the force of friction acting on the car was directed

up
down
east
west
none of the listed answers are correct

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

If element x has 99 protons how many electrons does it have

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity