to this answer it is drugs because all this stuff you named are substances which are drugs.
Answer:
210,600πft-lb
Explanation:
Force is a function F(x) of position x then in moving from
x = a to x= b
Work done =
Consider a water tank conical in shape
we will make small horizontal section of the water at depth h and thickness dh and also assume radius at depth h is w
we will have ,
weight of slice under construction
weight = volume × density × gravitational constant
Now we can find work done
=
= 210,600πft-lb
Answer:
all of the above are correct