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Anna007 [38]
3 years ago
7

On a small planet, an astronaut uses a vertical

Physics
2 answers:
Salsk061 [2.6K]3 years ago
8 0

Answer:

<h2>2.00 N/kg approximately.</h2>

Explanation:

A gravitational flied is defined as the quotient between the gravitational force and the mass:

g=\frac{F}{m}

Replacing all given values, we have:

g=\frac{175N}{97.6kg}\\ g=1.96\frac{m}{s^{2} }

Therefore, the gravitational filed is approximately 2.00 N/kg.

sleet_krkn [62]3 years ago
6 0
Constant velocity means the netto force = 0, therefore F(gravity) = F(astronaut).
175N divided by 87,5kg = 2.00kg/N
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Monochromatic light of wavelength 550 no passes through a diffraction grating that has 55000 lines/m. A bright line appears on t
just olya [345]

Answer:

Hence the order of the bright fringe is 7.

Explanation:

Diffraction  can  be defined as the deviation from rectilinear propagation and  diffraction  grating is used to measuring the wavelength of light using a spectrometer.

We have the formula  d sin∅ = n l

We have to find the value of n in this equation and all other values are given.

Here d = 55000 lines

∅ = 12.23°

Wavelength , l = 550 nanometer

n is the order of the bright line.

Substitute these values in the given equation,

55000\times sin(12.23°) = n\times 550 \times 10^{-9}

n = 7

Hence the order of the bright fringe is 7.

7 0
3 years ago
Which of these correctly shows what happens when two magnets are placed side by side?
Margarita [4]

Answer:

D

Explanation:

Remember that magnets only attract at different poles. If both poles are the same, they repel

3 0
3 years ago
What is the wavelength of a radio photon from an "am" radio station that broadcasts at 1120 kilohertz?
Alex73 [517]

The wavelength of the radio photon  is 268 m.

Electromagnetic waves travel with the speed of 3×10⁸m/s in vacuum. The speed of a wave <em>c i</em>s related to its frequency<em> f</em> and wavelengthλ as follows:

c=f\lambda

Thus the wavelength is given by,

\lambda =\frac{c}{f}

Substitute 3×10⁸m/s for <em>c</em> and 1120×10³Hz for <em>f</em>.

\lambda =\frac{c}{f}\\ =\frac{3*10^8m/s}{1120*10^3Hz} \\ =267.8 m\\ =268 m

Thus the wavelength of the radio photon from an AM station is 268 m

6 0
3 years ago
Shadow is formed when an_____<br>object comes in the<br>way<br>of light.​
Zanzabum

Answer:

shadow is formed when an opaque object comes on path of light shadows are formed because light travels in a straight line and it can't pass through an opaque object

7 0
2 years ago
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spayn [35]
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These molecules displaces molecules of N2 and O2, whose molar masses are:

N2: 2*14g/mol = 28 g/mol, and
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Then molecules of 28g/mol and 32 g/mol are being replaced with molecules of 18g/mol, leading to a lower weight of the same volume of air, which results in lower pressure.
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5 0
3 years ago
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