The closer to 100 percent a machine effeceny is the better it is at reducing

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

Suppose that a comet that was seen in 563 a. d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

How is the gravitational force related to the distance between two objects?