A spring mass system completes an oscillation in 3.6s. At t=0 the mass is released from rest at a distance of +.15m from the equilibrium. What is the position of the cart at .9s?

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

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

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as