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Romashka [77]
3 years ago
15

PLEASE HELP!!!

Chemistry
2 answers:
IrinaVladis [17]3 years ago
6 0
Hi the answer is 100x I hope that helps
cestrela7 [59]3 years ago
4 0

Answer:

Magnifying power = 25

Explanation:

Magnification power (M) of a telescope is a measure of the extent to which it enlarges the object under view. It given in terms of the ratio of the focal length of the telescope objective to that of the eyepiece

M = \frac{objective\ focal\ length}{eyepiece\ focal\ length}-----(1)

The f/ratio measures the light gathering power of a lens. It is expressed in terms of the focal length of the lens divided by its diameter.

f/ratio = \frac{focal\ length}{diameter} ------(2)

It is given that:

eyepiece focal length = 2-inch

f/ratio = 10

Diameter of the objective = 5-inch

Based on eq(2), the focal length of the objective would be:

focal\ length = f/ratio * diameter = 10*5 = 50\ inches

Based on eq(1), the magnifying power would be:

M = \frac{50}{2} = 25

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2 years ago
Need help plz help any one
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Hi!

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3 years ago
A steel cylinder of oxygen is being store in a room at 25.0 °C under a pressure of 1250 atm. What pressure would be exerted by t
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Answer:

P₂ = 1312.88 atm

Explanation:

Given data:

Initial temperature = 25°C

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Solution:

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Final temperature = 40°C ( 40+273.15 = 313.15 k)

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

1250 atm / 298.15 K = P₂/313.15 K

P₂ = 1250 atm × 313.15 K / 298.15 K

P₂ = 391437.5 atm. K /298.15 K

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