Use Grignard reagents to make a primary, a secondary, and a tertiary alcohol. At least one of the three must involve an epoxide as the electrophile. You do not have to show the synthesis of the Grignard reagents, but you must use an alkyl, aryl, and vinyl Grignard reagent in your three examples.

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

It should be 2.8 c/m

Small amounts of matter are converted intolarge amounts of energy occurs in both fusion and fission reactions. they are nuclear reactions where a change in the identity or characteristics of an atomic nucleus results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.