I'm not completely sure, but I think it's 3.4 newtons. I hope you get it correct.
<h3><u>Answer;</u></h3>
Kinetic energy
A car engine changes chemical potential energy into the <u>kinetic energy</u> of the moving car.
<h3><u>Explanation;</u></h3>
- A car engine converts potential chemical energy stored in gasoline into thermal energy and then into kinetic mechanical energy.
- When gasoline undergoes combustion it reacts with oxygen to produce carbon dioxide and water vapor.Gasoline is a mixture of octane and similar hydrocarbons and contains potential chemical energy.
- The hot exhaust gases from the combustion of gasoline that are produced within the cylinder expand and exert pressure, moving the piston in the cylinder outward then inward as the gas is exhausted. Kinetic mechanical energy of the moving pistons is transferred to the drive shaft and eventually to the wheels, giving the car kinetic mechanical energy.
Answer:
gravity
Explanation:
ok what i understand from your query is that a spring balance with a metal piece attached to it is weighing it down, a spring balance is measured in newtons (f=ma), the acceleration part is gravity (-9.81 m/s^2). The metal piece is attached to the string.
hope this answers your question and please take my answer with a grain of salt and refer to some webpages or videos
<span>Question 1
Answer: There are both magnetic north and south poles.
</span><span>QUESTION 2
Answer: Electric charges must come in pairs—one positive and one negative.
Question 4
Answer: Aluminium
Question 5
Answer: an iron nail</span>
This would be evaporation. Evaporation occurs when a liquid changes to a gas. Also, bonus facts:
When a gas changes to a liquid, this is called condensation. When a liquid changes to a solid, this is called freezing. When a solid changes to a liquid, this is called melting. When dry ice turns into carbon dioxide gas, this is called sublimation. Most other solids could probably do this, but dry ice is the most common example.
