Two known forces F1 = 3.55 N at 74.0° below the positive x-axis and F2 = 2.80 N at 32.0° below the negative x-axis are acting on an object. What is the magnitude of the third force F3 so that the acceleration of the object is zero?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

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

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects