Achemical involves one or more reactants changing into new products.

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.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of