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Ira Lisetskai [31]
3 years ago
14

An old theory about the position of planets and the sun in the galaxy has been replaced by a new theory. Which of these statemen

ts is correct about the two theories?
The new theory is accepted because its explanations became a law.
The new theory is an explanation accepted worldwide.
The old theory was rejected because it was a description.
The old theory would be again accepted by a few scientists if it becomes a law.
Physics
1 answer:
frosja888 [35]3 years ago
3 0
I believe the answer is "The new theory is an explanation accepted worldwide."
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Wheel and axle gizmos
Anna11 [10]

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Explanation:

Wheel and axle gizmos answer key

7 0
3 years ago
The distance between the first and fifth minima of a single-slit diffraction pattern is 0.350 mm with the screen 39.0 cm away fr
rjkz [21]

Answer: a) the width is 2.54 mm

b) the angle is 0.012°

Explanation:

we have the equation:

λ = zw/(L*m)

Where is the distance for the middle of the screen, L is the distance to the screen, w is the widht of the slit and λ is the wavelength.

now we can isolate z and get:

z = λL*m/w

and the distance between the 5 minimum and the first one is 0.035mm

then:

0.035mm = λL*5/w - λL*1/w = λL*4/w

now we can solve it for w.

0.35mm = 570nm*39.0cm*4/w

now, we have all diferent units, lets use nanometers.

1cm = 1x10^-2 m

1mm = 1x10^-3 m

1nm = 1x10^-9m

then: 1 cm = 1x10^7 nm

         1 mm = 1x10^6 nm

then we have:

0.35x10^6 nm = 570nm*39.0x10^7 nm*4/w

w = (570nm*39.0x10^7 nm*4)/0.35x10^6 nm =(570nm*39.0*10*4)/0.35

w = 2540571.4 nm

it is a bigg number, let's write it in milimeters:

w = (2540571.4/10^6) mm = 2.54 mm

the first minimum can be obtained by the equation w*sinθ = mλ by using m = 1

then we have:

2540571.4 nm*sinθ = 570 nm

sinθ = 570/2540571.4 = 0.000224

θ = asin(0.00022) = 0.012°

5 0
3 years ago
What are the dimensions of B
joja [24]
Well i think the answer is impossible to find because there is no picture
4 0
4 years ago
Look at the pictures to answer please and thank you Branleist goes out to
notsponge [240]
Ok, Amplitude is C, Wavelength is A, Trough is D, and crest is B.

Hope this helps!
8 0
3 years ago
10. An object of a mass 300 KG is observed to accelerate at the rate of 4M/S2. Calculate the force required to produce this acce
zheka24 [161]

Answer:

1200 Newton

Explanation:

Force is equal to mass times acceleration

please mark me brainliest

4 0
3 years ago
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