If you roast a marshmallow is it a chemical or physical change

A wavelength of light is 2,000 m. What is the frequency?

Scientists have learned about the structure of Earth's interior by A) examining deep wells B) using radar C) studying seismic waves D) using sonar

What is the frequency of the rotation of the turntable expressed in revolutions per minute when the coin slides off?

Can the displacement be greater than the total distance

How does friction affect brick structures

Muscle control is the ability to quickly change directions and make complex movements

According to the first law of thermodynamics, what could happen when heat is added to a system? The internal energy of the system decreases. The heat is turned into work done by the system. New energy is created within the system.

How does a parallel circuit differ from a series circuit? A. A parallel circuit has one path for electrons, but a series circuit has more than one path. B. A series circuit has one path for electrons, but a parallel circuit has more than one path. C.

When a potassium ion (k+) enters a gaurd cell it creates a solution of what?

If two plates diverge at a rate of 1.3 cm/year, how much farther apart will the plates be after 200 million years?