What are the elements that make up halite?

Use the drop down menu to answer the question What kind of lens is found in both a magnifying glass and a microscope?

How is water molecule like a magnet?

Which of these waves require a medium to travel through

If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate the efficiency of the engine.

The volume (in L) that would be occupied by 5.00 mol of O2 at STP is A. 0.411 L. B. 22.4 L. C. 41.6 L. D. 112 L.

Determine the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic field. The electric field and the magnetic field are also perpendicular to each other and have magnitudes 7.7 x 10^3 V/m and 7.

What is the electric potential of a 2.2 µC charge at a distance of 6.3 m from the charge? Recall that Coulomb's constant is k = 8.99 * 109 N • ___ V What is the electric potential at a distance of 99 m from the charge?___ V

what is a possible unit for the product VI, where V is the potential difference across a resistor and I is the current through the same resistor?

In old western movies, cowboys often would put their ear to a train track to listen for an oncoming train. What benefit would this method provide over listening for a train by listening for sound through the air? A) The sound would be louder.

What is meant by "reflecting" and "refracting" telescopes?