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aev [14]
3 years ago
6

During which season is the big dipper closest to the horizon

Physics
1 answer:
krek1111 [17]3 years ago
3 0
The season is autumn
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A beam of light of two different wavelengths enters a pane of glass 3.2 mm thick at an angle of incidence of 59°. The indices of
Anuta_ua [19.1K]

Answer:

d = 0.125 mm

Explanation:

using snell's law

\dfrac{sin\ i}{sin\ r} = \dfrac{n_2}{n_1}

r = sin^{-1}(\dfrac{n_1sin\ i }{n_2})

n₁ = 1 for air

r = sin^{-1}(\dfrac{sin\ 59^{\circ} }{1.5})

r = 25.09⁰

displacement of color would be

d = t\dfrac{sin(i-r)}{cosr}\\d= 3.2\dfrac{sin(59-25.09)}{cos25.09}\\d= 1.932 mm

for second color

using snell's law

\dfrac{sin\ i}{sin\ r} = \dfrac{n_2}{n_1}

r = sin^{-1}(\dfrac{n_1sin\ i }{n_2})

n₁ = 1 for air

r = sin^{-1}(\dfrac{sin\ 59^{\circ} }{1.53})

r = 22.58°

displacement of color would be

d = t\dfrac{sin(i-r)}{cosr}\\d= 3.2\dfrac{sin(59-22.58)}{cos22.58}\\d= 2.057 mm

hence, separation is

d = 2.057 - 1.932

d = 0.125 mm

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4 years ago
Why are ocean currents important?
Lelu [443]
For the considerably longer periods– decades to millennia – which are relevant for climate change, the slightly larger heat capacity of the deep ocean<span> is </span>important. Ocean currents<span> and mixing by winds and waves can transport and redistribute heat to deeper </span>ocean<span> layers.</span>
4 0
3 years ago
Classify the statements as correct or incorrect.
alexandr402 [8]

Explanation:

  • A thermometer does measure the temperature of a body and not the heat. It is known that temperature is a measure of average kinetic energy.

Therefore, the statement a thermometer measures  the average kinetic energy  of a substance is correct.

  • Heat is a form of energy as it can make a colder substance become hot and it moves from one place to another. Thus, the statement heat is a form of energy is correct.
  • Also, heat flows from hotter substance to colder substance. Hence, the statement heat flows from a colder  substance to a hotter  substance is correct.
  • Convection is a property of fluids or gases which makes less denser (hot) material to rise and more denser (colder) material to sink.

Therefore, the statement convection occurs only  in liquids and gases is correct.

  • All substances radiate heat is an incorrect statement. For example, a thermos bottle does not radiate heat.
  • Temperature of our body is about 98.4 degree celsius and hence we can conclude that the statement our body temperature is  always equal to the  temperature around us is incorrect.
6 0
4 years ago
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A 25 µF capacitor is connected to a 12-volt battery. How much energy can be stored in the capacitor? (1F = 106 µF)
cupoosta [38]
W=1/2cvsqr....1/2*25*10^-6*144
0.0000125*144=0.0018=18micro farad
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3 years ago
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Why time does not flow backwards ?
MaRussiya [10]

it is B and i cant explain sadly because i dont even know why time doesnt flow backwards even though that would be cool. please mark brainiest

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