PHYSICS MIDDLE SCHOOL

the brakes on a car do 240000j of work in stopping the car. if the car travels a distance of 40m while the brakes re being applied. how large is the average force that the brakes exert the car?​

Answers

Answer 1
Answer:

The ​magnitude of the average force that the brakes exert the car is 6,000 N.

The given parameters;

  • work done on the car by brake, W = 240,000 J
  • distance traveled by the car, d = 40 m

The magnitude of the average force that the brakes exert the car is calculated as follows;

W = Fd

where;

  • F is the average force

Make "F" the subject of the formula, to determine the magnitude of the average force of the brake.

F = (W)/(d) \n\nF = (240,000)/(40) \n\nF = 6,000 \ N

Thus, the ​magnitude of the average force that the brakes exert the car is 6,000 N.

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Answer:

Explanation:

so when you usually sign in to something and you forget the password you would usually see a reset password option and when you click on it you need to put in our email then it should send your email a code that you put into the box that you put the code in to reset the password.

If you are not able to insert the code after about 10 to 15 min. then under the bar it should say resend code and the same thing will happen again and you are going to have to put in the new code.

I hope this helps and sorry if you are confused if you need more help send your questions to my email and ill be happy to help!

Leo.Thineyog at stu.fayette.kyschools.us

How can you best identify quackery in a health service provider?A. The provider does not provide success claims or testimonials.
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SUBMIT

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HOPE I HELPED!!!! =D

Stu wanted to calculate the resistance of a light bulb connected to a 4.0-V battery, with a resulting current of 0.5 A. He used the formula R = VI and obtained an answer of 2 . Was Stu’s answer correct? How do you know?

Answers

Answer:

The answer is not correct.

Explanation:

Stu's answer is not correct, the equation to use is known as the law of ohm. In which the voltage is defined as the product of the current by the resistance, then we will see this equation.

V = I*R\nwhere:\nI = current [amp]\nR = resistance [ohm]\nV = voltage [volts]\n

In order to find resistance, this term is found multiplying the current on the right side of the equation, therefore the current will be divided on the left side of the equation.

R=(V)/(I) \nreplacing:\nR=(4)/(0.5) \nR=8[ohms]

That is the reason that the result found by Stu is not correct.

Answer:

Sample Response: Stu's answer was incorrect. According to Ohm's law, R = V/I. This is the equation that should be used to obtain the correct answer, which is 8 ohms.

Explanation:
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