If the distance between a star and an orbiting body is known, what can Newton's law of universal gravitation calculate? A
the chemical composition of the body

B
the chemical composition of the star

C
the mass of the star

D
the mass of the body

If anyone who can me with this hw? i would really appreciate it

Find the mass by adding the numbers from the three sliders

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions