What happened as the mass of the Sun increased during the formation of the solar system?
A. The gravitational force of the Sun stayed constant.
B. The gravitational force of the Sun decreased.
C. The gravitational force of the Sun increased.
D. The gravitational force of the Sun gained inertia.

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

The pressure proportional to the area a- inversely b- directly c- increase d-decrease