The surface tension of a liquid is being measured with a ring as shown. the ring has an outside diameter of 10 em and an inside diameter of9.5 em. the mass of the ring is 10 g. the force required to pull the rij1g from the liquid is the weight corresponding to a mass of 16 g. what is the surface tension of the liquid (in n/m)?

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon