A student throws a 10 gram of gum is thrown across the physics lab from a distance of 3.4 m. When the gum has a horizontal velocity of v0 it connects with a mass on the end of 1.72 kg simple pendulum which is initially at rest. The pendulum has a length of L of 0.86 m. The gum sticks to the pendulum mass and swings backwards to gain a vertical height of 12.7 cm.

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.

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.