Four students described the characteristics of four different states of matter. the table below shows the descriptions given by each student.
a indefinite shape, definite volume
b indefinite shape, indefinite volume
c definite shape, definite volume
d consists of atomic particles broken away from nuclei
which student described solids?

Under normal temperature and pressure conditions, what type of rock could be formed from weathering in erosion of metamorphic rock

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

Why do astronauts in the space shuttle weigh less?