X-ray)
because Electromagnetic waves are in act
I really don’t know but I think it’s D
Yes, it can be unicellular and multicellular
I would use miles
Because miles will give you less of an answer
A.
if you have seen a newton's cradle this will make sense.
in order for both of them to travel at the same speed, the balls need to have the same mass and the speed to begin with tocontinue to travel at the same speed because mass can affect the impact of the force on the balls by each other, causing each ball to have different speeds.
