5. A diverging lens with a focal length of -25 cm is held in front of a lit candle 50 cm away. a. Calculate the image distance.
b. Is the image real or virtual?
c. Is the image bigger or smaller than the object?

If steel is more dense that lake water, why can a boat float

Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.