What is 6.9*10to the 7th power written in standard form

How does quantum theory explain black body radiators?

Which type of mirror causes beams of light to spread apart A) flat mirror B) concave mirror C) diverging mirror D) converging mirror

Describe the full water cycle

Distinguish between directly proportional and inversely proportional with an example of each

Gamma rays are waves of energy that have no charge.

What element has the lowest electronegavity?

Identify two different ways you can make a yellow spotlight for a theater stage

Ian walks 2 km to his best friend's house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk took him 3 hours. What is his average speed in km/h? SHOW YOUR WORK!

What would happen if earth gravity suddenly disappeared?

How many layers of material were the roads made of? a. two c. four b. three d. five