Light rays from an object after passing through a convex lens form an image at the focal point behind the lens (opposite side of the object). what is the actual position of the object? at the focal point in front of the lens at twice the focal length between the focal point and twice the focal length at a great distance, effectively infinite between the focal point and the lens nextreset

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f