2. a car traveling at 32m/s
slams on the brakes after noticing
an obstacle ahead. the car slows
down at a constant rate before
coming to a stop 4.2 seconds
later. how far did the car travel in
the 4.2 seconds it took to stop?
a. 7.6 m
b. 67.2 m
c. 86.4 m
d. 134.4 m

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Give an example in which the electrical energy changes to light energy

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.