Which of the following elements do living things have that volcanic rocks don’t have? a) oxygen b) silicon c) magnesium d) carbon

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?