The speed of sound v in air is approximately 331.4 m/s +0.6 T. The speed of light c is 300,000
km/sec, which means it travels from one place to another on
Earth more or less instantaneously. Let's say on a cool night
(air temperature 10° Celsius) you see lightning flash and then
hear the thunder rumble five seconds later. How far away in
km) did the lightning strike?

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?