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Aleks [24]
3 years ago
13

Helpppp pleaseee right answersss onlyyy

Physics
2 answers:
zysi [14]3 years ago
7 0
I believe the answer is A
Kaylis [27]3 years ago
4 0
It is the first on differences in water temperature.
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A television camera lens has a 17-cm focal length and a lens diameter of 6.0 cm. what is its number?
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Answer:

= 2.83

Explanation:

F number (N) is given by the formula;

  F- number = f/D

where f = focal length of lens and D = diameter of the aperture  

Therefore;

F number = 17 cm/6 cm

                <u> = 2.83</u>

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3 years ago
A sailboat runs before the wind with a constant speed of 2.8 m/s in a direction 52° north of west. How far (a) west and (b) nort
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<h2>Displacement along west = 3612 m</h2><h2>Displacement along north = 4633.50 m</h2>

Explanation:

Let east be positive x axis and north be positive y axis

Velocity of boat = 2.8 m/s in a direction 52° north of west.

Velocity, v = -2.8 cos 52 i + 2.8 sin 52 j = -1.72 i + 2.21 j m/s

Time taken = 35 min = 35 x 60 = 2100 s

Displacement = Velocity x Time

Displacement =  (-1.72 i + 2.21 j)  x 2100

Displacement =  -3612 i + 4633.50 j m

Displacement along west = 3612 m

Displacement along north = 4633.50 m

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3 years ago
If an electron is released at the equator and falls toward earth under the influence of gravity, the magnetic force on the elect
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2 years ago
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