A metal rod of 100cm is heated through 100 degrees . calculate the change in length of the rod. take linear expansivity the material of the rod to be 3* 10raised to the power of minus 5per kelvin

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

What happens when a rubber rod is rubbed with a piece of fur?