Mitchell records the amount of time a toy car takes to travel down a ramp one time for each of four slope angles. his lab partner, sarah, suggests that he run the same set of trials two more times. what arguments should sarah use to support her suggestion? check all that apply. more trials will prove the results. more trials will reduce mistakes. more trials will guarantee correct results. more trials will increase confidence in the results. more trials will identify other possible solutions.

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution. b.)biological evolution states laws that are part of mendel’s theory of genetics. c.)mendel’s genetics replaced darwin’s entire concept of biological evolution. d.)biological evolution is a law that explains why all genetics exist.

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?