A600-n box is pushed up a ramp that is 2 meters high and 5 meters long. the person exerts a force of 300-n. what is the efficiency of the ramp?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

The bubbles in a carbonated soft drink are produced when carbonic acid decomposes to form carbon dioxide and water. in a closed system, this equilibrium exists as why does a carbonated soft drink lose carbonation when the container is left open? a.water evaporates, which favors the formation of h2co3. b.pressure decreases, which favors the formation of h2co3. c.the open container warms up, which causes more gas to escape. d.co2is removed, which favors the formation of h2co3.

Which of the following is most likely to be the best conductor of electricity? oxygen chlorine aluminum chromium