A sample of iron absorbs 81. 0 j of heat, upon which the temperature of the sample increases from to if the specific heat of iron is 0. 450 j/g-k, what is the mass (in grams) of the sample?.

1) sections 1, 2, and 10 are significant primarily because they suggest the likelihood that a) widow wycherly is actually the woman in the full-length portrait. b) dr. heidegger wants to include his guests in an experiment with the water. c) dr. heidegger plans to drink some of the water from the vase and needs witnesses. d) the guests will be asked to witness dr. heidegger's transformation when he drinks the water.

The air that we breath is made mostly of which gaseous molecule

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?