Answer:
B. holding a coffee mug
Explanation:
Something must move a distance for work to be done.
Uhhhhhhhhh just tryna get a point so I can ask a question so eh I’m using ur question heheheheheh
We know,
V= f× wavelength
10.5= f×0.15
f=10.5/0.15
f= 70 Hz
Assuming this is an elastic collision, they go in the direction of the object with more mass
