Why does increasing temperature increases vibration of molecules in conductors so it decreases it's conductivity while in semi-conductors it increases it's conductivity and no vibrations occurs in the molecules?!

Is hydroelectricity animate or inanimate?

A runner moves west with an initial velocity of 4 m/s. She accelerates 3 m/s2 for 30 seconds. The runner's final velocity is

Someone places a chocolate bar near a working radar set that is used to locate ships and airplanes. which best describes what is likely to happen to the chocolate bar? it changes color as it absorbs visible light from the radar set.

Which memory disorder is a common illness on television and films

A car weighing 9,800 N was lifted by a crane to a height of 10 m in 60 s. What power was used?

Why is chopping carrots a physical change?

What value would you divide 50 by in order to get grams to kilograms

Organized elements into four groups based on properties

Microwave, radio signal, light, earthquake which does not belong

A 9.0-v battery is connected to a bulb whose resistance is 2.5 ω. part a how many electrons leave the battery per minute?