How many simple machines are in the following things?

crow bar
nutcracker
pizza cutter
siccors
egg beater with a handle

Assistance needed.

huh?

crow bar: lever

nutcracker: lever
pizza cutter: wedge
sissors: lever, wedge
egg better: lever, axle/wheel

To determine the number of simple machines in each of the given items, we need to identify the different types of simple machines involved.

1. Crowbar:
A crowbar is an example of a class one lever, which is a simple machine. It consists of a rigid bar with a fulcrum (pivot point) at one end and provides a mechanical advantage. Therefore, there is one simple machine in a crowbar, which is a lever.

2. Nutcracker:
A nutcracker is also an example of a class one lever. It typically has a fulcrum at one end, a gripping point in the middle, and provides a mechanical advantage for cracking nuts. Like the crowbar, a nutcracker has one simple machine, which is a lever.

3. Pizza cutter:
A pizza cutter is a type of wheel and axle. It consists of a circular cutting wheel (the wheel) attached to a handle (the axle). When the wheel is rolled over the pizza, the axle helps to apply force to cut through it. Therefore, a pizza cutter has one simple machine, which is a wheel and axle.

4. Scissors:
Scissors are an example of class one levers. They consist of two levers joined together at the fulcrum or pivot point, allowing them to create a mechanical advantage for cutting. Each blade acts as a lever, and the joint acts as the fulcrum. Consequently, scissors contain two simple machines, which are levers.

5. Egg beater with a handle:
An egg beater typically uses rotational motion to beat or mix ingredients. It has a handle that is turned manually, driving the gears inside the egg beater to rotate the beaters or blades. As a result, an egg beater with a handle contains two simple machines: gears (wheel and axle) and levers (the beaters or blades).

In summary, the number of simple machines in each item is as follows:
- Crowbar: 1 (lever)
- Nutcracker: 1 (lever)
- Pizza cutter: 1 (wheel and axle)
- Scissors: 2 (levers)
- Egg beater with a handle: 2 (gears/wheel and axle, levers)