Magnetic storms can be caused by which of the following solar phenomena? Question 6 options:

sunspots

solar flares

solar heat

solar prominences

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?