I WILL GIVE BRAINLIEST Which of the following statements is true?

If a hypothesis is proven false, a mistake has been made in the experiment.

The independent variable is what changes as a result of the dependent variable.

Changes in the independent variable cause changes in the dependent variable.

Once a hypothesis is proven true, it becomes a theory and cannot be disproved.

Gunpowder residue is most likely to show up where on a shooters hands

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little