PHYSICS HIGH SCHOOL

What is it called when air particles spread apart?

Answers

Answer 1
Answer: When air particles bunch up, it's called a compression-rarefaction.
When the particles spread apart its called a rarefaction.

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What is the resultant of a and B if a= -2i - 5j and B = I - 4j

Answers

a= -2i - 5j
B = I - 4j

a + B = -2i -5j + 1i - 4j

a + B = -1i - 9j 

a car with a mass of 2000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. The curve has a radius of 80 meters. What is the centripetal force on the car

Answers

In the given problem, we say various information's that are going to help us reach the ultimate answer to the question. Let us first write the information's that have been presented in front of us.
Mass of the car = 2000 kg
Velocity of the car = 25 m/s^2
Radius of the circle = 80 m
Now we already know the equation for calculating the centripetal force and that is
Centripetal Force = [mass * (velocity)^2]/Radius
                            = [2000 * (25)^2]/80
                            = (2000 * 625)/80
                            = 1250000/80
                            = 15625
So the centripetal force on the car is 15625 Newtons
  

your answer is 15,625 N

i just took the test

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Answers

A. Gravity pushes down, normal force pushes up.

State the principle of transmission of pressure in liquids

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Answer:

Pascal's law or the Principle of transmission of fluid-pressure states that "pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio (initial difference) remains the same."

Explanation:

Which of the following is not a nutrient? Minerals, probiotics, lipids or proteins. Why? IF YOU SEE THIS HELP

Answers

Answer:Probiotics is not a nutrient

Explanation:It doesnt have nutrients .All of them are nutrients except probiotics it only helps them but it isnt one

Which of the following cannot be transmitted through avacuum?
a. ocean waves
b. UV rays
C. Laser
d. X-rays
e. microwave

Answers

A, C its not possible newtons law
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Which image shows an example of the electromagnetic force in action?