3 years ago

Example

Physics

1 answer:

Vsevolod [243]3 years ago

5 0

I believe I seen on google if you go to Mather

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Infrared radiation from young stars can pass through the heavy dust clouds surrounding them, allowing astronomers here on Earth

liberstina [14]

Answer:

λ = 1.86 x 10⁻⁴ m = 186 μm

Explanation:

The relationship between the wavelength and the frequency of a wave is given by the following equation:

$c = f\lambda\\\\\lambda = \frac{c}{f}$

where,

λ = wavelength of infrared radiation = ?

c = speed of infrared radiation = speed of light = 3 x 10⁸ m/s

f = frequency of infrared radiation = 1.61 THz = 1.61 x 10¹² Hz

Therefore,

$\lambda = \frac{3\ x\ 10^8\ m/s}{1.61\ x\ 10^{12}\ Hz}$

7 0

3 years ago

A mass is oscillating horizontally on a spring. At the locations A, B, C, D, and E, photogates are used to measure the speed of

svetoff [14.1K]

Complete Question

The complete question is is shown on the first uploaded

Answer:

The elastic potential energy at point B is $PE_{elastic} = 50J$

The kinetic energy at point D is $KE = 75J$

Explanation:

Looking at the given point we can observe that mechanically energy(i.e potential and kinetic energy ) is conserved and it value is $E_ {m} = 100J$

So at point B

$E_{m} = PE_{elastic} +KE$

$100 = PE_{elastic} + KE$

KE at point B is 50J

So $PE_{elastic} = 100 - 50 = 50J$

Now at point D

$E_{m} = PE_{elastic} +KE$

$PE_{elastic}$ at point D is 25J

So $KE = 100 - 25 = 75J$

4 0

3 years ago

What will be the displacement of this spring if the load is 4n with a constant of 5n\m

nikdorinn [45]

As we have formula for mass spring system

F= kx ( where k is spring constant , x is displacement , F is the force acting due to load)

To find =x

So x=F/k

x= (4N) / (5N/m)

x= 0.8 m

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3 years ago

A car is driving due South<br> counterclockwise on a<br> circular track.

Alex Ar [27]

Answer:

Explanation:hope this helps

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3 years ago

List the color of the stars from hottest to coldest

masha68 [24]

Blue, blue-white, Yellow-white, yellow, yellow-orange, and red. Hope this helps.

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3 years ago