a framed picture hangs from two cords attached to the celling. which shows the correct free body diagram of the hanging picture?

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

What type of light does this light bulb produce most (i. e. at what wavelength does the spectrum have maximum intensity)?

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