When frequency increases, the wavelength halves.
Explanation:
a) 
where 
is the distance of the mass 
from the axis of rotation. When the axis of rotation is placed at the end of the rod, the moment of inertia is due only to one mass. Therefore,
b) When the axis of rotation is placed on the center of the rod, the moment is due to both masses and the radius r is 1.5 m. Therefore,
Answer:
He could use magnets to lift heavy things and also move things like a train
Explanation:
i had the same question
6 cubic feet I’m pretty sure that’s the answer
