In gravitational attraction what two factors affect two objects

What is the speed of light through a substance with index of refraction of 1.22? 3.66 * 10^8 m/s 3.00 * 10^8 m/s 2.01 * 10^8 m/s 2.46 * 10^8 m/s

In a vacuum light, waves and radio waves have the same A) frequency B) period C) speed D) wavelength

Water can be described in a variety of ways. Which of the following statements describes a chemical property of water? A. At room temperature, water has an approximate density of 1 g/mL. B.

All galaxies follow the law of gravity. a. True b. False

What factors determine the magnitude of the electric force between two particles? a. charge and distance b. mass and distance c. charge and density d. mass and charge

Suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration. a) The car is decelerating and its acceleration is positive.

What are the moons of the outer planets made of, and how is their composition different from that of our Moon?

What is the main difference between geocentric and heliocentric models of the solar system

A flywheel in a motor is spinning at 530 rpm when a power failure suddenly occurs. The flywheel has mass 40.0kg and diameter 75.0cm. The power is off for 39.

Witch types of electromagnetic waves have wavelengths that are longer than those of visible light but shorter than those of microwave?