An object is located 5.0 cm from a concave mirror. the focal length is 15.0 cm. what is the image distance? use the equation attached. a.3.8 cm b.-3.8 cm c.-7.5 cm d.7.5 cm

In what direction does the medium move relative to the direction of the wave? explain.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.