Author Question: In a one-dimensional system, a standing wave is the result of ________ A) two equal ... (Read 19 times)

anjilletteb · **on:** Jul 29, 2018

In a one-dimensional system, a standing wave is the result of ________

A)

two equal amplitude, equal wavelength waves traveling in the same direction.
B)

two waves of different amplitude, but equal wavelength traveling in the same direction.
C)

two waves of different frequency, but equal amplitude traveling in the same direction.
D)

two waves of different frequency, but equal amplitude traveling in opposite directions.
E)

two equal amplitude, equal wavelength waves traveling in opposite directions.

Question 2

An astronaut is piloting a spacecraft, which is in a circular orbit around Earth. A space station is ahead, on the same circular orbit. If he fires his rockets briefly to increase the forward speed of the rocket, what will happen?

What will be an ideal response?

blakcmamba · **Reply #1 on:** Jul 29, 2018

Answer to Question 1

E

Answer to Question 2

The spacecraft will be put into an elliptical orbit with a perigee, the distance of closest approach to the center of Earth, equal to the original radius. The average radius of this orbit is larger, so it will take longer to complete one revolution. So when he completes one revolution, bringing him back to the original radius, he will have fallen further behind.