A ray diagram is shown what does the letter x represent?

The intense heat from Earth's interior that warms the magma beneath Earth's surface is called?

Which of the following is a predicted answer to a scientific question A. an experiment B. A Hypothesis C. an observation D. A Conclusion

What are three methods of heat transfer and what are some examples

What is density? How can you find density?

Ben is exercising his pony on a large oval track. The long is trotting at a constant speed of 10 m/s around the track. Which statement can be made about the pony's acceleration

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.

What methods can be used to break down substances into elements

8. A gas is contained in a horizontal piston-cylinder apparatus at a pressure of 350 kPa and a volume of 0.02 m3. Determine the work done by the piston on the gas if the cylinder volume is increased to 0.15 m3 through heating.

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?