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saveliy_v [14]
3 years ago
13

The angular separation of two stars is 0.1 arcseconds and you photograph them with a telescope that has an angular resolution of

1 arcsecond. What will you see?
Physics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

Will see them as only one star

Explanation:

Solution:

- The angular resolution of a telescope means the minimum quantity that can be visualized. Since their angular separation ( 0.1 arcseconds ) is smaller than the telescope's angular resolution (1 arcseconds ), your photograph will seem to show only one star rather than two.

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What types of natural phenomena could serve as time standards?
Delvig [45]

Answer: The rising and setting of the Sun.

The appearance and disappearance of the Moon.

Changes in season.

Appearance and disappearance of the Stars.

Explanation: The rising and setting of the Sun helps can be used as a standard to determine time since the rissing and setting of the Sun occurs at similar time and interval in a given geographical ocation.

The appearance and disappearance of the Moon which occurs during the night and early hours of the morning is similar in a given geographical locationation so it can be used as a standard for Time.

Change in season is another natural phenomenon which occurs at similar times in a given geographical location like Winter/summer, rainy/dry etc can be used as standards for time.

The appearance and disappearance of the Stars can also b used as standards for time in a given geographical location.

5 0
3 years ago
Wat is the volume of a marble in mL?
rewona [7]
4/3 pi (radius)^3
If the radius is in cm the volume will be in mL
6 0
3 years ago
A box contains about 5.54 1021 hydrogen
Aleks [24]

Answer:E=33.71\ J

Explanation:

Given

No of atoms of hydrogen N=5.54\times 10^{21}

Temperature of room T=21^{\circ}\approx 294\ K

Thermal energy of the atoms is given by

E=\frac{3}{2}NkT

where k=boltzmann constant

E=\frac{3}{2}\times 5.54\times 10^{21}\times 1.38\times 10^{-23}\times 294

E=33.71\ J

Hence the energy of the atoms is 33.71\ J

5 0
3 years ago
F(x) = 3x^2+5x-14<br> Find f(-9)
Llana [10]

Answer:

f(-9) = 184

Explanation:

f(x)=3x²+5x-14

f(-9)= 3(-9)² +5(-9)-14 Order of Operations : Exponents

     =  3(81)+5(-9)-14

     = 243+5(-9)-14

     =  243-45-14

     = 198-14

f(-9)= 184

Hope this helps :)

8 0
3 years ago
Lila is a track and field athlete. She must complete four laps around a circular track. The track itself is a 400 meter track an
fgiga [73]

Answer: 4.45m/s

Explanation:

I assume we're solving for her speed.

400m x 4 laps = 1600m

1600m / 6 minutes = 266.67m/min

(266.67m/min) x (1 minute/60 seconds) = 4.45m/s

266.67/60 = 4.45m/s

6 0
3 years ago
Read 2 more answers
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