Determine the pressure acting on a surface of area equal to 2 m2 if the force applied to the surface is 4 N

Determine whether each statement concerning different wavelengths of light is true or false. Light with a wavelength of 100 nm is completely absorbed by the atmosphere. Light with a wavelength of 400 nm has the color of red.

Coulomb's law predicts that charged bodies may attract or repel each other. true or false

Explain the conditions in which a person can or can't hear a echo

One atom of iron contains 26 protons, 30 neutrons, and 26 electrons. Which of the following would be possible for another atom of iron? A. 25 protons, 30 neutrons, 26 electrons B. 26 protons, 28 neutrons, 26 electrons C.

How much of the matter in the universe is comprised of atoms?

11) Shifting with ease from one type of problem-solving strategy to another is called a) flexibility b) versatility c) originality d) openmindedness

A truck undergoes a constant acceleration of 2.0 meters/second2 on a highway that slopes upward at an angle of 30.0° to the horizontal. What is the magnitude of the horizontal component of the acceleration?

Why is there so much more carbon dioxide in the atmosphere of Venus than in that of Earth? Why so much more carbon dioxide than on Mars?

People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means that unrealistically large currents are needed to produce noticeable torques.

A hot air ballon with a mass of 500kg ascends at a constant rate of 1.5 m/s for 20s. how much work is done by the upward force?