I NEED HELP ASAP! WILL MARK BRAINLIEST!!

What color is the sky?

Work = force × a. work b. energy c. distance d. momentum

Which of these activities increases the amount of carbon in the atmosphere?

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.