How are scientific theories different than laws or hypotheses? theories can be changed to better fit new evidence theories can remain the same over hundreds of years theories can be proven beyond any doubt or questioning theories can develop without any supporting observations

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit