The lateral magnification m ora mirror is calculated with the equation m in which is
the image height and is the object height for an inverted image, which relationship always
The signs of vand are the same
The signs of and are opposite
The magnitude of equals the magnitude of
The magnitude ofw is less than the magnitude of

Observations show that interstellar clouds can have almost any shape and

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence