Linear momentum is the product of mass and velocity. In this case, it is simply:
Answer:

Explanation:
From the question, using the expression:

where;



This is a combined intensity of 4 speakers.
Thus, the intensity of 3 speakers = 
= 2.372 W/m²
Thus;


Although the semi truck certainly has a larger mass, it is not in motion and therefore does not have any momentum. The bicycle however has both mass and velocity and therefore has the larger momentum of the pair.
Spreads out in the medium, first choice
Answer:
screw and pulley
Explanation:
because they didn't have any of the other tools in that time