Kneel and beg for an answer from a master, kneel and ask for an answer from a great god

Because Dudi's speed is twice that of Gani, Gani ran from B to A, the first time the two met was 800 meters away from point B, so Gani ran 800 meters, and Dudi's speed was his time, so he ran 1200 meters, that is to say, AB and the two places are 2000 meters apart, if Gani ran to point A, he ran 2000 meters, and Dudi ran his times is 3000 meters, so Dudi ran to point B and then ran to point A, And ran to a distance of 1000 meters from B, at this time the distance between the two of them is 1000 meters, and the distance of the remaining 1000 meters must be 1: that is, 2:3 points, that is, Dudi ran 1000 3 5 = 600 meters, and Gani ran 400 meters, so the second time they met was at a distance of 400 meters, that is, from B1000 + 600 = 1600 meters.

According to the title, because Dudi is twice as fast as Gani, when the two first met, Gani ran 800 meters and Dudi ran 800* meters.

Therefore, the AB distance is 800 + 1200 = 2000 meters.

When the two met for the second time, the distance they ran was three times the distance between the two points of AB, that is, 2000*3=6000 meters.

gani runs a distance of 6000 (1 (1+m.)

Therefore, the distance from a for the second encounter should be 2400-2000=400 meters.

(1) According to the specifications: 400x250x320mm, the stacking limit is 5; The gross weight of a single piece is 48 kg, and the number of warehousing is 2400 boxes.

Obtainable: 320mm*5=, less than the usable height of the warehouse is meters;

400mmx250mm = square meters, 10 boxes are placed in half for 1 square meter, 48 kg * 5 * 10 = 2400 kg, which is greater than the floor load of 2000 kg per square meter, so the top layer needs to be reduced by 9 boxes, that is, 41 boxes per square meter, 1968 kg;

Therefore available; 2400 41) * 1 ( ) = 58 ( ) that is, at least 58 square meters are required.

2) The height of the pallet is 1 60mm, and the packaging specification of the goods: 400x250x320mm, so the height of the pallet is not enough to put the goods, and the visual inspection may be a problem with the data;

If the correction pallet height is 1 600mm, the shelf height is 15000mm;

According to the pallet size of 1200x1000mm, cargo packaging specifications: 400x250x320mm;

Each pallet (with a floor load of kilograms, then each pallet is loaded with 50 boxes of goods (5 layers, 12 boxes per layer, 2 boxes at a time).

Therefore, the number of pallets required is: 2400 50 = 48 pallets.

This is the beading of wenge. It is not the same grade as red sandalwood, sea yellow, etc., and it is much cheaper. Usually tens of yuan to a few hundred yuan is the majority.

Wenge wood, national standard mahogany, wood heartwood, there is a shape like chicken wings ("V" shape) pattern and get the name, is the production of high-end furniture, jewelry, ornaments of the precious wood.

Wenge is easily distinguishable from other mahogany species. Chinese name: Stu Ya Doumu, scientific name:

Millettia Laurentii, trade name: wenge genus; Burmese wenge, Chinese name: Baihuaya bean wood, scientific name:

millettia leucantha；Cassia sinensis scientific name: cassia siamca, trade name:

Siamese Legumi is also wenge.

The old home has the old wenge, the new wenge, the acacia wood, and the mahogany furniture is divided into Burmese wenge and African wenge.

Parallel is inevitable, the sum of the four inner angles of the quadrilateral is 360 degrees, the angle a = angle c = 90 degrees, therefore, the angle d + the angle b = 180 degrees, and df, be bisect the angle, so the angle adf + angle abe = 90 degrees, and in the right triangle adf, the angle adf + angle afd = 90 degrees, then, the angle afd = angle abe, then be parallel fd

The sum of the inner angles of the quadrilateral is 360, which is 90, so b+c is 180Half-angle CBE+CDF=90and cbe+ceb=90So cdf=cebSo parallel.