How is thermal energy related to heat

Important minerals such as copper are found in what? (More info: which are combinations of many minerals)

Which of the following is a positive statement? Question 4 options: A) A humidity level of 90 percent is too high. B) Summer evenings are nice when it cools off to around 70 degrees. C) The temperature is 92 degrees today.

What value relates the speed of light in a vacuum to the speed of light in a given material? A) angle of incidence B) angle of refraction C) index of refraction D) index of reflection

What will happen to the density of an object when it's mass increases?

About what fraction of the earth's atmosphere is not made of nitrogen.

What does it mean when a plane is perpendicular to the x-axis?

If the weight of an object that is submerged in a fluid is 10 N and the buoyant force on it is 20 N, what will happen to the object?|

A switch in an electric circuit controls the flow of electrons in the circuit. True O False

What are three common forms of work in science

A boat travels north across a river at a velocity of 22 meters/second with respect to the water. The river's velocity is 2.2 meters/second to the east. What is the resultant velocity of the boat, as measured from the land?