lines on the position-time graph show the velocities of different vehicles. Which line represents a vehicle moving at constant ve Position Time گر A A MEA co

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.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?