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IceJOKER [234]
3 years ago
7

Suppose that the most massive car ever built is moving down a 10.00 slope when the driver applies the brakes. The net force acti

ng on the car as it stops is -2.00X104 N. If the coefficient of kinetic friction between the car’s tires and pavement is 0.797, find the car’s mass. What is the normal force that the pavement exerts on the car?
Physics
1 answer:
slava [35]3 years ago
6 0

Hey there!

Use the question and search for a quizlet or science solving program

Here is a link:

www.scienceslovingprogram.com

Or

www.sciencehelp.com

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Answer:

1. Light is electromagnetic waves while sound is mechanical.

Light wave is transverse and sound is longitudinal.

Explanation:

2.

<i = <r

3.

when distance between source and obstacle and distance between obstacle and screen is finite then the diffraction is fresnal diffraction

when distance between source and obstacle and distance between obstacle and screen is infinite then the diffraction is Fraunhofer's diffraction

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3 years ago
when a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused b
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4 years ago
The drawing shows four sheets of polarizing material, each with its transmission axis oriented differently. Light that is polari
storchak [24]

Answer:

Explanation:

At the point when light is vertically polarized is incident on the polarizer whose axes are situated at angle points \theta _1 , \theta _2 , \theta _3 the intensity power in the wake of going through all the polarisers is given by the Malus law, applied threefold for every one of the three axes.

I = I_o  \ cos \theta _1  \ cos  \theta _2  \ cos \theta _ 3

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∴

a)

When sheet A is removed, the transmitted light goes through B, at 30°.

I = I_o \ cos ^2 \theta _1 \ cos ^2 \theta _2 \ cos^2 \theta _3

I = 20 \ cos ^2 30 \ cos ^2  60  \ cos ^2 30

I = 2.81 \ W/m^2

b)

When B is removed, No light passes since the axis of A and the axis of C are perpendicular to each other.

c)

When C is removed, the intensity is indeed zero since the axes are aligned and adjusted at 90° to one another.

\mathbf{d) \ I - I_o cos^2 (0) cos^2 (30) \ cos^2 (60)}

\mathbf{d = 3.75 \ W/m^2}

3 0
3 years ago
Two vectors A and B have components (0,1) and (-1,3), respectively. What is magnitude of the sum of these two vectors?
AnnZ [28]
We first add the x and y components of the vector to get the x and y components of the resultant vector:
(0 - 1, 1 + 3)
-1 , 4
magnitude = √(1² + 4²)
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4 0
3 years ago
C.) 65 km =<br> mm<br> Convert
Brums [2.3K]
Hi! 65 km to mm is 65,000,000 mm! Hope this helped you!
6 0
3 years ago
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