It's not physics it's physical science but i figured this was the closest subject to it. 1. the life cycle of a star begins with a cloud of gas and dust called a (1 point)

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.