A I believe if not I’m sorry
Uhhhh not a question the can be answered sorry :/
Answer:
a = v^2 / R = 4.5^2 / R = 29
R = 4.5^2 / 29 = .70 m
I think it's D. Usually, to find the volume of an irregularly shaped object, you put it in water with a labeled beaker to measure how much the water rises. The balance would be used to measure the mass in grams.