Search on google. It will have the right answer
I have no idea
sorry
good luck thooooo!!
One
d = 400 m
t = 20 s
speed = ?
speed = 400 / 20
speed = 20 meters/second
Two
d = 50 meters
t = 10 seconds
speed = 50 meters / 10 seconds
speed = 5 meters / second
Answer:
"It's a radioactive transuranic element that has only been produced in nuclear reactors."
mindat.org/element/curium