Gtwo point charges are located on the y axis as follows: charge q1 = -1.30 nc at y1 = -0.550 m , and charge q2 = 2.60 nc at the origin (y = 0). what is the magnitude of the net force exerted by these two charges on a third charge q3 = 5.00 nc located at y3 = -0.400 m? which direction is the net force?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

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 two particles are found in the center of an atom