You place 100 grams of ice, with a temperature of −10∘c, in a styrofoam cup. then you add an unknown mass of water, with a temperature of +10∘c, and allow the system to come to thermal equilibrium. for the calculations below, use the following approximations. the specific heat of solid water is 2 joules / gram, and the specific heat of liquid water is 4 joules / gram. the latent heat of fusion of water is 300 joules / gram. assume no heat is exchanged with the surroundings. express your answers in grams, using two significant digits.

if the final temperature of the system is -5∘c , how much water was added? grams

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis