Answer:
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off input forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.
Explanation:
Answer:
They get more energy, so they vibrate!
Explanation:
litmus paper
Because it will just tell if the solution is acidic or basic, it won't tell the pH
