Select the statements that correctly describe how a barometer measures pressure. a. Pressure exerted by the atmosphere is equal to pressure exerted by the column of mercury.
b. The pressure exerted by an enclosed gas is equal to the height difference of a column of mercury in a U-tube.
c. A column of mercury inverted in a dish of mercury measures pressure exerted on the open surface of the mercury.
d. The diaphragm changes shape in response to exerted pressure.

How can one make a supersaturated solution? (apex)

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.