Aconvex lens has a focal length 30cm and a concave lens has a focal length of 0.05m. they are separated by 0.2m on a common axis. an object 50mm high is placed 6.0m away from the convex lens. what is the position of image?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

The two required components for a generator