Why are the marked lines on a beaker like this useful for measuring the volume of a liquid?

Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball