Hubble law how did astronomers gather the information needed to establish the law?

The yellow balls represent neutrons and have a neutral charge.

How can you use ecozone in a sentence?

Chance drives her scooter 7 kilometers north. She stops for lunch and the drives 5 kilometers east. What distance did she cover? What was her displacement?

If two observers in the Northern Hemisphere are 500 miles apart but are at the same latitude, which of these statements will be true? A. Polaris will be seen by both observers at the same azimuth. B.

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

Which of the following factors can negatively affect development? a. Political corruption and instability b. Lack of resources c. Lack of education d. All of the above

A golf ball is hit with an initial velocity of 155 ft/s at an angle of 23 degrees with the horizontal. After 1.4 seconds, how far has the golf ball traveled horizontally and vertically?. a. 199.7 feet horizontally and 75.2 feet vertically. b. 60.

What is the kinetic energy (in joules) of a. 2 kg softball thrown at a speed of 40 m/sec? (answer should be in correct units)

How is the information sent back to earth by the robots?

During which change of state do atoms lose energy? sublimation freezing boiling melting