Which object would have magnetic domains like those shown in the image A. an aluminum nail, not near a magnet
B. an iron nail, not near a magnet
C. an aluminum nail near a magnet
D. an iron nail near a magnet

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 are two different ways you could find the value of a? explain these methods.

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?