Geography Masters Please Come in 5, Geography Masters Please Come In

It's the easiest, huh.

Turkish Strait: connects the Black Sea to the Mediterranean Sea (you know the Black Sea and the Mediterranean) Bab el-Mandeb Strait: connects the Red Sea to the Indian Ocean (you can also say the Gulf of Aden) Strait of Hormuz: between the Persian Gulf and the Gulf of Oman (find Iran on the map to know where it is).

。。。Forget about it.

There should be in the book.

1. The Indian subcontinent.

2. Bhutan, Nepal, India, Pakistan, Bangladesh, Pakistan, India, Bhutan, Nepal, Sri Lanka, Maldives.

3. The northern part is the Himalayas, the Indus River Plain, the Ganges Plain, the Deccan Plateau, and the upper and lower terrain of the east and west are lower (I guess you wrote the wrong question here).

4. The Himalayas are the peak of Kailas, India, Pakistan, the Arabian Sea, the Gangotli Glacier at the southern foot of the Himalayas, India, Bengal, and the Bay of Bengal.

5. Tropical desert climate and tropical rainforest climate.

6. Indus River, India; Pakistan; industrial and agricultural areas; West to East, what about the figure? (according to contour lines) topography.

The sunrise at 5:30 in Guangzhou means that the daylight time at the same latitude is more than 12 hours, and then the sunset time in Guangzhou is calculated.

We know that at 12 noon the day is divided in half.

So the difference from 5:30 to 12 is 6 and a half hours.

Therefore, the daylight time is 12 o'clock + 6:30 = 18:30, and it is known that the two places are roughly the same dimension.

So the Hawaii sunset time is 18:30 local time

Next, calculate the time difference.

113e eastward to 156w, latitude difference (180-113) + (180-156) = 91° = 6 hours and 4 minutes.

And then it's easy.

Departure time is 5:30 Hawaii time + 6 hours 4 minutes = 11:34 a.m. and arrival time is 18:30 Hawaii sunset time.

Subtract 18:30-11:34 = 6 hours and 56 minutes, about 7 hours.

Summary: In this problem, it is necessary to convert the time to the same place, which can be Guangzhou time or Hawaii time.

Guangzhou belongs to the East 8th Zone, and Hawaii belongs to the West 10th Zone, with a difference of 18 hours.

When I landed in Hawaii, it was sunset, which means that it is 18 o'clock in the local place, and it is 18 o'clock + 18 hours in Guangzhou at this time.

At 12 o'clock on the second day, since the nearest route from Guangzhou to Hawaii crosses the International Date Change Line, one day, that is, 12 o'clock, is subtracted, because the plane flew from take-off to arrival, and flew for an hour.

The latitude is the same, and the local time of sunset and sunrise is the same. Sunrise at 5:30 a.m., daylight hours are (12:0.)

00—5:30) 2=13 hours. Then sunset time 18:

30。Guangzhou belongs to the East 8th District, and Hawaii belongs to the West 10th District. Longitude difference between the two places:

180-113) + (180-156) = 91° local time difference: 91° 4 = six hours and four minutes. The Hawaii time for departure is 5:

30 + six hours and four minutes = 11:34, the sunset time in Hawaii is 18:30, from which it is estimated that the plane flew for 6 hours and 56 minutes, which is about 7 hours.

4、c5、b

This question mainly examines the law of the height of the sun at noon, which is more difficult.

According to the conditions and formula, the condition that the noon rays of the sun on the first floor of the building are blocked is δ h, h=90°-|According to the known conditions on the figure, tanh=— , h 60°, substituted by the formula |-=30°δ=0°, that is, when the sun hits the equator directly, the first floor of the north building is blocked by the south building, that is, when the direct sun is in the southern hemisphere, the first floor of the north building is blocked, and the time is about 6 months, so item c is selected for question 4;

If the first floor of the north building can be irradiated by the sun all year round at noon, the condition should meet the conditions of the direct sun hitting the Tropic of Capricorn, that is, δ=-23°26, substituting the formula h=90-|30 (m) can be obtained, so item b is selected for question 5.

I'm also interested in the answer, but I personally think there should be a diagram to state in advance:

Analysis: 4, (False) First of all, the Spring Festival is in early February, and the winter solstice is in mid-December. During the winter solstice, the sunlight shines directly on the Tropic of Capricorn, and the light in the northern hemisphere is the most skewed, and the shadow of objects in the northern hemisphere reaches the longest.

Therefore, one and a half months from mid-December to early February is the time when the shadow shortens from the longest to just enough to cover the North Building at noon, during which the noon sunlight in the North Building is blocked by the South Building. This is the process of shadow shortening, and in the same way, the process of shadow elongation also takes 1 and a half months. 1 1/2 months + 1 1/2 months = 3 months, so choose B.

5. In the same way, in order to have light in the north building all year round, it is only necessary to consider the extreme situation when the sun is directly on the Tropic of Capricorn. When the sunlight shines directly on the Tropic of Capricorn, because the Tropic of Cancer dimension is 23 ° 26 south latitude and the latitude of the house is 30 ° north latitude, draw a map of the sun and the earth, it is not difficult to find that the angle between the sunlight and the 30 ° north latitude horizon where the south building and the north building are located is: 90 ° -23 ° 26 -30 ° = 36 ° 34.

From the figure, it is known that the distance between the north and south buildings is 40 meters, and through the conversion of trigonometric functions, it can be obtained: the height of the south building h=40 meters tan(36°34) 30, so choose b.

Because I don't know much about this aspect, it is inevitable that there will be mistakes, I hope not to blame, and suddenly found that question 4, I read it wrong, I won't do this.

1. Except for the north and south poles, the angular velocity is equal everywhere on the earth's surface.

You're right, it's the North and South Poles. It's all zero.

2. The linear velocity of the earth's surface decreases with the increase of latitude, and the location of the same latitude increases with the increase of altitude.

That's right, too. Look at the larger the radius, the greater the linear velocity.

The answer to both questions should be yes.

First of all, the concept of the landlord is wrong, first, the north and south poles in geography are the poles, it is not a paradigm, but a point in the mathematical sense.

Second, the second question, what happens if you are at the pole, haven't you learned the function? When a curve intersects to mark 0 points, isn't the function of the curve also (0,0)?

Besides, do you want me to explain?

If you learn mathematics well, geography will not be difficult.

Strictly speaking, the first question is wrong, it should be said that except for the poles, the angular velocity of all parts of the earth is equal, and the second question is also incorrect, the linear velocity of the earth at each latitude decreases from the equator to the poles, but it is not affected by the altitude, and the linear velocity of the poles is 0

The first should be right! It is written in the geography book! And the second should be able to apply the formula: linear velocity = 1670 * cos latitude!