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podryga [215]
3 years ago
10

How does the statement above impact the tone of the address?

Advanced Placement (AP)
1 answer:
azamat3 years ago
8 0

Answer:

there's no statement above so I cant really answer the question

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PLEASE HELP! I am extremely confused. I have to finish this by today and there is no one to help me! Please I am begging you! I
FinnZ [79.3K]

Under the given assumptions, summer lasts 93 days (10 days for Jun, 31 days each for Jul and Aug, and 21 days for Sept), and winter lasts 90 days (11 days for Dec, 31 days for Jan, 28 days for Feb, and 20 days for Mar).

1. In the summer, we assume the Earth moves in a circular path with radius 94.5 million mi. In 365 days, the planet would cover a distance equal to the circumference of this circle, 2π * (94.5 million mi), or approximately (using π = 3.14) 593.46 million mi. Summer last 93 days, which is roughly 93/365 = 25.48% of one year. So during the summer, the Earth will traverse about 25.48% of the circumference of its circular path, or

0.2548 * (593.46 million mi) = 151.2 million mi

In the winter, the Earth's path is taken to be a circle of radius 91.4 million mi, so its circumference is 2π * (91.4 million mi) = 573.99 million mi. Winter has a duration of 90/365 = 24.68% of a year, so during winter the Earth travels

0.2468 * (91.4 million mi) = 22.6 million mi

2. The average speed of a body over some time interval is the distance the body travels divided by the duration of time.

During the summer, the Earth moves at an average speed of

(151.2 million mi) / (93 days) = 1.63 million mi / day

During the winter, it moves at a speed of

(22.6 million mi) / (90 days) = 0.251 million mi / day

3. Use the distances/arc lengths found in (1) to determine the measure of the central angle θ subtended by the summer and winter arcs. In either case, the ratio of arc length to circumference is equal to the ratio between the central angle and one complete revolution (2π radians).

By the same token, the ratio of sector area A to the area of the whole circle (πr^2) is proportional to the ratio of the central angle to 2π rad.

Summer:

(151.2 million mi) / (2π * (94.5 million mi)) = θ / (2π rad)

==>  θ = 1.6 rad

A / (π * (94.5 million mi)^2) = (1.6 rad) / (2π rad)

==>  A = 7144.2 million square mi

Winter:

(22.6 million mi) / (2π * (91.4 million mi)) = θ / (2π rad)

==>  θ = 0.2473 rad

A / (π * (91.4 million mi)^2) = (0.2473 rad) / (2π rad)

==>  A = 1033.0 million square mi

6 0
3 years ago
Science question, please help, you will get 30 points.
Katyanochek1 [597]

Answer: The distrubance has a circular motion

Explanation:

Longitudinal wave- disturbance is parallel to the direction of the motion of the wave.

Transverse wave, disturbance is perpendicular to the direction of the motion of the wave.

Surface wave, the particles of the medium undergo circular motion. T

5 0
3 years ago
Ano ang panghalip ang nasa unang panauhan at may kailanang dalawahan sa sumusunod?
dalvyx [7]

Answer:

b

Explanation:

4 0
3 years ago
If a 10% sucrose solution within a semipermeable sac causes the fluid volume in the sac to increase a given amount when the sac
guapka [62]
Osmosis is the net movement of water molecules through a semi-permeable memberane from a region of higher water potential to a region of lower water potential.

so in the first case, since 10% of sucrose solution has a lower water potential than the pure water, so water molecules will flow into the sac, causing the sac to increase in volume. note that sucrose molecules can't diffuse out since there's a semi-permeable membrane.

in the question, I'm not 100% sure what the "sac solution" is meant by, but I guess it's the solution inside the sac

so here if the sac sucrose is 20%, the concentration of water is larger in difference than the first time, so osmosis rate will increase.

but if the "sac solution" is meant by replacing the water of the first case, then the sac inside would have a higher water potential, as the sucrose concentration is more diluted. then the water molecules will flow from the sac back to the beaker or whatever container it is.
8 0
3 years ago
2 cm 3 cm 4 cm(length width height) If this cube has a mass of 271.2 grams, then what is this unknown element?​
algol13

Answer: ask ur teacher

Explanation:

3 0
3 years ago
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