How is velocity different than speed?
-velocity is how fast something is moving at one specific moment. example: you can run on a treadmill
at 10 mph.
-velocity is speed with direction. example: you can run outside at 10 mph north.
- velocity is how fast something speeds up and slows down.
-velocity is a measurement of distance.

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

so easy. just google the electromagnetic waves and it’ll pop up.