Practice it) in a crash test, a car of mass 1.53 103 kg collides with a wall and rebounds as shown in the figure. the initial and final velocities of the car are vi = -14.7 m/s and vf = 2.65 m/s, respectively. if the collision lasts for 0.142 s, find (a) the impulse delivered to the car due to the collision and (b) the size of and direction ('+' or '−') of the average force exerted on the car.

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

Which branches of natural science include the study of an organism that lived 10 million years ago

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents