Hello, what is a four letter word the second letter is a o, and the hint is, “a period or measurement of time”

Would corn syrup, molasses, or pancake syrup make a good lubricant in a car engine? explain your answer.

Which energy transformation occurs in the core of a nuclear reactor? nuclear energy mechanical energy nuclear energy - thermal energy thermal energy -- nuclear energy mechanical energy - nuclear energy

What are similarities and differences of reflection, refraction, diffraction and absorption?