Which ones reflect and emit light? star, asteroid, sun, polaris, meteor, earth, moon, comet, mars

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

How would doubling the made of an object change the objects potential energy

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.