Two ice skaters, Karen and David, face each other while at rest, and then push against each other's hands. The mass of David is three times that of Karen. How do their speeds compare after they push off

Carbon 14 is a naturally occurring stable

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.