Can two negatively charged balloons move apart without ever touching?

no, because objects have to touch to exert forces that attract and repel.

yes, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

no, because the space between objects is actually filled with charged particles that all interact.

yes, because electrons from one ballon jump to the other and push it.

The correct answer is B. Yes, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

Hope it helps and have a wonderful rest of your day/night!

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.