Question

are true or false.

1. A nutcracker is a third class lever.
2. A machine can raise heavy load without supply of any energy to it
3. A wheel and axle is a complex machine.
4. Mechanical advantage of a second class lever is always more than one.
5 . Sewing machine is a simple machine.​

Answer 1

Answer:

1) true

2) false

3) true

4) false

5) true

Answer 2

Explanation:

1) FALSE

2) TRUE

3) TRUE

4) TRUE

5) FALSE