Use the blue slider labeled Mass to carefully adjust the mass of the red block until it neither sinks nor floats. The block should stay wherever your cursor places it, without moving up or down. Next, remove the block from the water and put it on the scale. Record its new mass.

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !