What does weighing less on the moon mean for astronauts on the moon?

20) what is a magnetic field? 21) in which direction do magnetic field lines always point? 22) sketch a diagram showing how a plotting compass points around a 23) name two magnetic poles that will: a) attract each other b) repel each other. 24) explain why you can use a compass to navigate. 25) what's an electromagnet? 26) list two ways to increase the strength of an electromagnet. 27) the wire in a simple motor feels a force when a current flows through it. why is this? i need answers to check mine

Which two body systems, when working together, give your body shape and allows you to move around, like the boy seen here? a) muscular and skeletal b) digestive and skeletal c) skeletal and circulatory d) cardiovascular and skeletal

What kind of wave patterns do you observe in the sink in the top view