Aray diagram is shown.

Medium 2

Medium 1

Which statement best describes the diagram?

Suppose you were far from a planet that had a very strong gravitational field, and an emission line spectrum source on the surface of the planet. when you observe a similar source in your own spaceship, the wavelength of the light is 656.3 nm.

Shelly was surprised to learn the dwarf planet Pluto used to be considered a planet. What would have had to be true for Pluto to remain categorized as a planet? Pluto would need to have an atmosphere.

Wilam made a chart to summarize the results of experiments with the photoelectric effect. Which best describes how to correct Wilam's error?

Which part of a circuit creates an electric force field that makes it possible for the circuit to work? -bulb -buzzer -motor -voltage source

What is the amplitude of the electric field of the light wave? express your answer with the appropriate units?

How many total chromosomes do "normal" human body cells have?

In order to make vehicles more energy efficient, what can be done?

In what phase of matter do molecules vibrate but stay in position? A. gas B. liquid c. solid d. plasma

What statement is true about a spring? A. The softer the spring, the greater the force required to restore its position. B. The stiffer the spring, the greater the force required to restore its position. C.

A bus is traveling with a uniform acceleration of 2.75 meters/second2. If the initial velocity of the bus is 16.5 meters/second, what will its velocity be after 9.00 seconds?