Brittany placed a cold piece of butter on a hot ear of corn. the butter began to melt.
the butter melted when it came into contact with the corn because heat was transferred from the corn to the butter by

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?