Meg ran 100 meters in 7.8 seconds. linda ran 100 meters in 14.5 second which statement is correct

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation