Which of the following values could possibly be vector magnitudes meaning that, combined with a direction, they could become vector
quantities?
Check all that apply.
A. 6 miles
B. 5 meters
C. 12 hours
D. 30 kilometers/hour

In a closed system, the total energy prior to an energy transformation is the total energy after. a. equal to b. unrelated to c. greater than d. less than

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

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct