Calculate the period of a ball tied to a string of length
0.507m
making 2.2 revolutions
every second. Your answer must
Be within the ± 2.0%.

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

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Rohit is trying to tune an instrument