Sometimes scientists make a mistake, or and need to do the experiment again?

In what direction does the medium move relative to the direction of the wave? explain.

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear