A15.6 g sample of ethyl alcohol absorbs 0.207 kcal of energy as it is heated. if the initial temperature of the ethanol was 21.5 °c, what is the final temperature of the ethanol? (cethanol = 0.58 kcal/kg °c) 22.9 ° c 25.0 ° c 44.4 ° c

The consumption of fossil fuels could be

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.

Which situation will produce the greatest change of momentum