Infer why gases such as the oxygen used at hospitals are compressed. why must compressed gases be shielded from high temperatures? what must happen to compressed oxygen before it can be inhaled?

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

Apossible explanation for a set of facts that can be tested by further investigation is called

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?