Questions have multiple answers !

act Question 7 0 / 1 pts A group sets out to answer the research question "are mass and acceleration related?" They conduct trials with three different masses and plan to use an t' analysis on their data. What feedback would improve their experimental design? At isn't useful here. Only test two masses. lest more than three masses. Run fewer trials arttal Question 8 0.5 / 1 pts Another group sets out to answer the research question "are mass and acceleration linearly related?" They conduct trials applying three different forces and plan to use a t' analysis on their data. What feedback would improve their experiment? Only test to forces Test more than three forces. At isn't appropriate here. Keep the force constant incorrect Question 9 0 / 1 pts A group constructed two pendulums of different masses and measured their periods multiple times. Their t' analysis indicated their two samples were distinguishable. What can you infer from these findings? Their & was larger thans. I ney Found a Limitation of the equation I-2"pl'sgrin/el. "The two masses might have been too similar. The period of a pendulum doesn't depend on mass