n a binary-star system, each star has the same mass which is 9times that of the Sun, and they revolve about theircommon center of mass. The distance between the stars is 6 times the distance between the Earth and the Sun. Whatis their period of revolution in Earth years

specific latent heat of fusion, lf, of a substance is defined as the amount of heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.

explanation:

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle