BackGiven that the mass of Venus is 81.5% that of Earth and its radius is 94.9% that of Earth, which of the following best represents the ratio of the acceleration due to gravity at the surface of Venus to that at the surface of Earth ()?
Which of the following best describes a neap tide and the relative positions of the , , and that cause it?
In the context of gravitational forces in two dimensions, which force always pulls objects downward toward the surface of the Earth?
At which of the following locations would an object's weight be the greatest?
In the context of gravitational forces in two dimensions, what happens to the magnitude of the gravitational force between two point masses as mass increases?
Which of the following changes would cause the gravitational force between two objects to decrease according to Newton's law of universal gravitation ()?
In the context of gravitational forces in 2D, how does the total mass of all asteroids in the asteroid belt compare to the mass of a typical terrestrial planet such as ?
At new moon, the arth, oon, and un are aligned in a straight line with the oon between the arth and the un. Which of the following best describes the direction of the net gravitational force acting on the oon due to the arth and the un?
In the context of gravitational forces in two dimensions, what does it mean for a celestial body to be tidally locked to another body?
If the Earth had no atmosphere, which of the following would be a direct consequence for objects in free fall near the Earth's surface?
Why is the weight of an object greater on than on the ?
Which of the following quantities is inversely proportional to your weight on a planet's surface?
Which of the following best describes the downward pull on an object due to gravity?
In the context of gravitational forces in two dimensions, which force is most responsible for the formation of a star?
In a binary star system, astronomers are able to detect the dimmer star because its gravity causes the bright star to