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3 years ago

How are scientific theories and laws similar?

2 answers:

6 0

This the answer Often, a law can be expressed in the form of a single mathematical equation. Laws and theories are similar in that they are both scientific statements that result from a tested hypothesis and are supported by scientific evidence. ... A theory, in contrast, is a less concise statement of observed phenomena. i hope this help

julsineya [31]3 years ago

5 0

Laws and theories are similar in that they are both scientific statements that can result from a tested hypothesis and are supported by scientific evidence.

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Alex often draws his dream house

maria [59]

Answer:

hopefully alex quackity hahhaa

Explanation:

i hope this was free points and not an actual thing

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2 years ago

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A blue-green photon (λ = 488 nm ) is absorbed by a free hydrogen atom, initially at rest. What is the recoil speed of the hydrog

Natalka [10]

Answer:

The recoil speed is $2.207\times 10^{4} m/s$

Solution:

Wavelength of a blue-green photon, $\lambda_{BG} = 488 nm = 488\times 10^{- 9} m$

Now, the energy associated with the blue-green photon:

$E_{BG} = \frac{hc}{\lambda_{BG}}$

where

h = Planck's constant

C = speed of light ion vacuum

$E_{BG} = \frac{6.626\times 10^{- 34}\times 3\times 10^{8}}{488\times 10^{- 9}}$

$E_{BG} = 4.07\times 10^{- 19} J$

Also, we know that the recoil speed can be calculated by the KInetic energy which is equal to the Energy of the blue-green photon:

$KE_{H} =\frac{1}{2}m_{p}v_{H}$

where

$v_{H}$ = velocity of Hydrogen atom

$m_{p} = 1.67\times 10^{- 27} kg$ = mass of H-atom

Now,

$KE_{H} =\frac{1}{2}m_{p}(v_{H})^{2}$

$4.07\times 10^{- 19} =\frac{1}{2}\times 1.67\times 10^{- 27}\times (v_{H})^{2}$

$v_{H} = \sqrt(4.87\times 10^{8}) = 2.207\times 10^{4} m/s$

7 0

2 years ago

When you stand with the wind blowing on your back, the low pressure center is

yan [13]

✷ Question: When you stand with the wind blowing on your back, the low pressure center is _____.

Answer: Letter A

✐ Explanation: When wind hits your back, all the molecules are in front of you.

Hope that helps! ★ If you have further questions or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia

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2 years ago

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How does the moons diameter compare with the distance between the earth and the moon?

xxMikexx [17]

The diameter is about 0.9 percent of the distance.

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3 years ago

A book has a mass of 5 lb what is the mass of the book kg

OverLord2011 [107]

The mass of the Book is 2.27 kg.

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2 years ago