Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you.
the lines of magnetic force at any point in the magnetic field will act in
a. the same direction as the current.
b. a clockwise direction.
c. a counterclockwise direction.
d. the direction opposite to the current.

Galileo was the first to notice that the moon has craters, valleys, and mountains. how might this have changed people's perception of the moon at the time?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?