I would say B. hope it helps
Making cars that get better gas mileage
When considering work, we always take the force directed along the axis of motion (in this case, the horizontal axis). If 40% of the force is directed downward, then 60% of the force is being directed horizontally, so the horizontal force is 250*0.6 = 150N. Work = Force * distance = 150N * 6.2m = 930J
The types of chemical reactions are as follows:
- Combination reactions
- Decomposition reactions
- Double decomposition
- Thermal dissociation
- Redox reactions
<h3>What the are the types of reactions?</h3>
Chemical reactions are changes in which new substances are formed.
The types of chemical reactions are as follows:
- Combination reactions - these are reactions in which two or more substances combine to form a single compound
- Decomposition reactions - these are reactions in which a larger compound splits into smaller substances
- Displacement reactions - these are reactions in which one element or radical replaces another in a compound
- Double decomposition - these are reactions in which two substances exchange their radicals to form new compounds.
- Thermal dissociation - these reactions involves heating compounds to split them into smaller substances.
- Redox reactions - these are reactions in which oxidation and reduction reactions occur simultaneously.
In conclusion, chemical reactions produce new substances.
Learn more about chemical reactions at: brainly.com/question/11231920
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Ek = 6KJ.
In physics, the kinetic energy of a body or object is the one that owns due to its movement and is given by the equation 
, where m is the mass of the object in kilograms and v is the velocity in m/s.
An object that it has a mass of 30 kilograms and moves with a velocity of 20m/s, its kinetic energy is given by:
