Question

@IhteshamMalik plz help unit test in sciecne will post question with pic

Answer 1

9. You apply 100.0 N of force to a machine. The machine applies 20.0 N of force to the load. What is the mechanical advantage of the machine? (1 point)

200.0
80.0
5.00
0.200

10. A construction worker is using his weight to keep a stationary stack of wooden beams from falling. If the construction worker uses 689.0 N of force to hold 10 beams stationary against a wall, how much work does he do? (1 point)

0 J
0.0150 J
68.9 J
6,890 J

11. Metal cookware often comes with plastic handles. The plastic handles (1 point)

decrease friction.
decrease mechanical advantage.
are insulators.
are conductors.

Answer 2

This is for a test? We can't provide answers for tests. That's cheating.