Which must be tested to see if it is supported? A.) a problem
B.) a variable
C.) a hypothesis
D.) a data collection

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Does heating a metal wire increase or decrease its electrical resistance? why?