Do you need help with all of them
Answer:
<em>The statement is true .</em>
Explanation:
<em>I hope this helps.</em>
Electromagnetic waves do not require a medium to travel through. They can travel through empty space or matter.
b) 4m/s/s
This is because you divide the speed you reach, by the time it takes to get to that speed:
12m/s ÷ 3s = 4m/s/s
The units come from what you divide, meters per second ÷ seconds this can be written as m/s/s or ms-²