Answer:
1, 2 and 3
Explanation:
The most dense substance will settle at the bottom of the cup
A becuz its at da it dont got no wa
Since it was stated that it must move at constant
velocity, so the only force it must overpower is the frictional force.
So the equation is:
F cos θ = Ff
F cos 36 = 65 N
F = 80.34 N
<span>So the nurse must exert 80.34 N of force</span>