What happens to digital signals sent wirelessly over long distances? A. The signals become stronger the farther they are from the
recipient.
B. The signals change so that data are less likely to be reliable.
C. The signals become weaker as they move away from the source.
D. The signals are more likely to be affected by noise.

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?