Question

1.Suppose you twist the lid of a pickle jar to tighten it. What simple machine are you using ?

2.A second class lever has
a) two fulcrums.
b)two effort arms
c) two resistance arms.
d) a load arm shorter than the effort arm​

Answer 1

Answer:

1. hand i think

Explanation:

2. d part because it doesnt have two fulcrums ortwo effort and there is only 1 resistence in the middle