Question
In Physics, you might have heard about an ''insulator'' but you might have frequently asked yourself, what is an insulator? An insulator is basically a material or substance that resists or does not allow current to pass through it. They are generally ...
0
1 month 0 Answers 145 views 0

Poll

Results
The shock from the car battery will not kill you. In fact, under normal circumstances, a 12-volt car battery usually doesn't even shock you. That is not to say that car batteries completely harmless. There are many ways to get ...
0
10 months 0 Answers 709 views 0

Question
Your laptop computer does emit radiation. In fact, your laptop emits several different kinds of radiation: 400 to 800 THz electromagnetic radiation. This is the visible light given off by the laptop's screen that makes it possible for you to see what ...
0
1 year 0 Answers 733 views 0

Question
Actually, gravity is the weakest of the four fundamental forces. Ordered from strongest to weakest, the forces are 1) the strong nuclear force, 2) the electromagnetic force, 3) the weak nuclear force, and 4) gravity. If you take two protons ...
0
1 year 0 Answers 705 views 0

Question
A microwave oven does emit thermal radiation to heat up food. Microwave radiation is thermal radiation. For some reason, pre-college teachers and books have a mistaken notion that thermal radiation = infrared radiation. All frequencies of the electromagnetic spectrum carry energy, from radio waves, ...
in progress 0
1 year 0 Answers 884 views 0