how much energy is required to heat an iron nail with a mass of 25.5 grams from 65° until it becomes red hot at 720 degrees Celsius

In what circumstances do scientists use observational research and opinion based research?

What does it mean when we say "kinetic energy in an electron"?

What lays down sediment in a new location

Which activity is a function of the circulatory system? A. move materials through the body B. react to stimuli in the environment C. regulate heartbeat and blood pressure

Given the density of balsa wood is 7.8 pounds per cubic foot. what is the weight, in kilograms, of a piece of balsa wood 4.0 inches by 6.0 inches by 20.0 inches?

Chemical reactions cause changes in: atoms molecules physical properties

How many moles are 1.806 x 10^24 atoms?

The path that an object is moving or facing

Compare How does the current model of the atom differ from J. J. Thomson's model?

An environmental change is occurring due to continents shifting and moving to different parts of Earth's surface. What kind of change is this?