Atoy robot is programmed to move in a straight line across a desktop according the equation x=-(11/15t^3) + 3.1t, where x is in inches and t is in seconds. at some point during the trip across the desktop, the robot is at rest. what is the robot's acceleration at this point? select one: a. −3.5 in / s2 b. 11 in / s2 c. −5.3 in / s2 d. 13 in / s2

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

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 of the following are guidelines to follow for obtaining accurate observations