IMAGINE THAT YOU USED A SPECTROSCOPE
| TO LOOK AT AN UNKNOWN UGHTBULB, AND
YOU OBSERVE ONE THIN YELLOW BAND OF
UGHT AT ABOUT 590 nm. WHAT CONCLUSION
COULD YOU MAKE ABOUT THE UGHT SOURCE?
USE EVIDENCE

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

A110-pound person pulls herself up 4.0 feet. this took her 2.5 seconds. how much power was developed? 0.13 hp 0.32 hp 2.0 hp 3.1 hp

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.