Water drips from the nozzle of a shower onto the floor 2.45 m below. The drops fall at regular intervals of time, with the first drop striking the floor at the instant the third drop begins to fall. Assume that air resistance is negligible. (a) How long does it take for the water drop to fall from the nozzle to the ground?
(b) What is the height of the second drop (from the floor) when the first drop strikes the floor?

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force