Suppose you film the car from the side. In one trial, the camera is moving at the same speed in the same direction as the car. In
another trial, the camera is moving at the same speed in the
opposite direction. If the car's speed is 0.3 m/s relative to its
surroundings, what will its apparent speed relative to the camera be
in each trial?

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