For two equal point masses separated by some distance and in an uniform gravitational field, the center of gravity:. i. is on the perpendicular bisector of the line joining the two masses.
ii. is coincident with the location of either one of the mass.
iii. could be anywhere as long as it is equidistant from the two masses.
iv. is exactly in the middle and on the line joining the two masses.

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?