How does milk of magnesia act to calm an upset stomach?
a) acidic milk of magnesia to counteract the stomach acid.
b) an upset stomach requires more acid instead of milk of magnesia.
c) the basic ph of milk of magnesia neutralizes any extra stomach acid.
d) milk of magnesia has a neutral nature which dilutes the stomach acid.

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.