Q. Two radio-frequency point sources separated by 3.00 m are radiating in phase with λ = 0.5m. A detector moves in a circular path around the two sources in the plane containing them. Without written calculation, find how many maxima it detects.
Q. Before going into orbit, an astronaut has a mass of 55 kg. While in orbit, a measurement determines that a force of 100 N causes her to move with the acceleration of 1.90 m/s2. To regain her original weight, must she go on a diet or start eating more candy?