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Alex73 [517]
3 years ago
13

10. A sundial uses patterns of what to tell time?

Geography
1 answer:
dem82 [27]3 years ago
5 0
B shadows
The position of the sun in the sky casts a shadow on a properly placed sundial. This will give you time of day depending where the shadow falls.
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(a) Even though there is far less carbon in the atmosphere than other reservoirs on earth (ie the land and the ocean), it plays
slava [35]

Answer:

As explained below.

Explanation:

  • The ocean is considered to be the carbon sinks of the world and thus all the carbon there exists is absorbed by these in the formed of dissolved salts and content and this plays a crucial role in the cyclic nature of carbon.
  • The three annual oscillations in carbon levels are land, at and air this is due to the impact of natural fluxes. The main components being the atmosphere, biosphere and interior parts of the earth. What is known as deep carbon cycling.
  • These re necessary as the amount of carbon which is stored in the earth gets consumed and again produced and being a gaseous medium it's not stable in nature.
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Mrrafil [7]
Subsequince farming- not for profit- grew only enough for themselves- comercialfarming- for profit- sold goods to public- similarities- both grew ate some of what they grew.
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What flatlands extend south from chesapeake bay to the east coast of florida?
Zina [86]

The Atlantic Coastal Plain.

Extends from New York down south into Florida, thus fitting the description provided above.

Hope this helps!

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Which statement about oil is NOT true?
Oksana_A [137]

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When Carla solved for the height from the ground to the point where the ladder
Westkost [7]

Answer:

<em>See explanation</em>

Explanation:

Given

Represent the vertical angle with \theta

\theta = 75

The question has incomplete details because the length of the ladder is not given; neither is the distance between the ladder and the wall given.

<em>See attachment for illustration</em>

So, this solution will be based on assumptions.

Represent

- The height from ground to the top of the ladder with y

- The length of the ladder with L

- The distance between the ladder and the wall with x

Carla could solve for y in any of the following ways:

1. Tan formula

tan \theta = \frac{opp}{adj}

In this case:

tan \theta = \frac{x}{y}

Multiply both sides by y

y * tan \theta = \frac{x}{y} * y

y * tan \theta = x

Divide both sides by tan

y   = \frac{x}{tan \theta}

y   = \frac{x}{tan 75}

This can be used if the distance (x) between the ladder and the wall is known.

Assume x = 15

y   = \frac{15}{tan 75}

y = 4.02

2. Cosine formula

cos \theta = \frac{adj}{hyp}

In this case:

cos \theta = \frac{y}{L}

Multiply both sides by L

L * cos \theta = \frac{y}{L} * L

Lcos \theta = y

y = Lcos \theta

y = Lcos75

This can be used if the length (L) of the ladder is known.

Assume L = 15

y = 15 * cos75

y = 3.88

3 0
2 years ago
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