Author Question: The planets never travel in a straight line as they orbit the Sun. According to Newton's second law ... (Read 16 times)

Chloeellawright · **on:** Jul 27, 2018

The planets never travel in a straight line as they orbit the Sun. According to Newton's second law of motion, this must mean that ________.

A) the planets are always accelerating B) a force is acting on the planets
C) the planets will eventually fall into the Sun D) the planets have angular momentum

Question 2

Indirect detection of an extrasolar planet means ________.

A) seeing the planet with the naked eye B) sending a space probe to the planet
C) acquiring images or spectra of the planet D) observing the planet's effect on its host star