A scientist throws a 0.2 kg apple and measures the amount of time it takes to return to its original height. Which of the following vectors
represent the initial velocity that will result in the longest time in flight
for the apple?

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

What kind of simple machine is a catapult?