You apply a force on a crowbar to open a stuck door. The effort length of the crowbar is 26 cm long and the resistance length is 4 cm. Find the mechanical advantage of the crowbar.

6.5 cm

Explanation:

Mechanical advantage is a measure of efficiency or performance of a tool or machine in terms of force amplification which is done by the machine or tool. In simple terms, it measures that at what extent the applied force is increased with the help of tool or machine.

Mathematically, it is the ratio of force produced by the tool or machine to the force actually applied to the tool.

In terms of effort length and resistance length, it is calculated as -

Mechanical advantage =

Thus, Mechanical advantage = = 6.5 cm.

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so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey

answer; the above answer to the above statement is (true)