Physics ! all multiple choice! 1.) does an object moving in uniform circular motion have constant centripetal acceleration? true or false 2.) how do the angular velocities of three knots on a rope compare as it is swung around in a circle? how about their speeds? a.) the angular velocity and linear velocities are the same b.) the linear velocities are the same, the angular velocity increases as you move toward the outside dot c.) the angular velocity is the same, the linear velocities are fastest in the center d.) the angular velocity is the same, the linear velocities are fastest on the outside e.) both the linear and angular velocities increase as you move out 3.) an object travels with a constant speed in a circular path. the net force on the object is a.) zero b.) toward the center c.) away from the center d.) tangent to the object's path

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

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

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?