Speed = distance/time
speed= 122÷27=4.52m/s (3sf)
150*4=600
So the answer is 600
Answer:
B
Explanation:
OOf we are doing this stuff atm
So if its faster at the front and slow at the back you can tell that its not slowing down because less of a force is there however at the front there is more of a force. Friction is low which means that its not makimg much contact so no sudden change of forces thats also why its B
Answer:
Voltage-gated calcium ion channels open, and calcium ions diffuse into the cell
