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Accumulation, mathematics requires the accumulation of knowledge, knowledge in all aspects. Combine to solve the problem.
Also tell us that one plus one is adding one. One more equals a bottle.
Hehe, just kidding(* hee-hee......
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The volume of a stone is equal to the volume of water rising.
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In algebra, we call this quantity that changes first as an independent variable, and the quantity that changes with the change of an independent variable as a function, thus telling us that a function changes with the change of an independent variable.
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Why can't the crow drink the water from the well the same way that it drank the water from the bottle? What does this story tell us?
Hello, I'm sorry to keep you waiting, why can't the crow drink the water from the well by drinking the water in the bottle? This story tells us: when encountering problems, we must use our brains, think of ways, and treat specific things concretely, and we can't just do it.
The story of the crow drinking water: the old way doesn't work A crow was thirsty and flew out of the woods to find water to drink, and met the monkey at the entrance of the village, and the monkey told him: "There is a well in the village."
When the monkey was gone, the crow found the well, and took the pebbles into the well one by one, but after a long time, no water came up. Then the monkey came to the well to draw water, and when he saw the crow drinking in this way, he laughed and said, "You can drink the water from the bottle in this way, but you can't drink the water from the well."
After saying that, the monkey quickly sold a bucket of water and asked the crow to drink enough.
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1. Physical knowledge: the stone enters the container, occupies the volume, and moves the water surface;
2. Philosophy: 1. What seems difficult or unattainable is only because the method is not enough, and there are conditions to be used, and if there are no conditions, conditions must be created to strive for opportunities.
2. According to local conditions, according to the characteristics of the crow's long mouth, small bottle mouth, not high enough water surface, and nearby stones, etc., to satisfy the desire to quench thirst.
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n = 25, m stone = 10g =, g = 10n kg, m water = , v bottle = 3 10-4m3, 1) according to the formula, the total gravity of the stone in the bottle:
g=mstoneg=25 ;
2) Volume of water:
v water = m water
Water = = 2 10-4m3, total volume of stones:
V stone = v bottle - v water = 3 10-4m3-2 10-4m3 = 1 10-4m3;
3) Stone density Stone = m stone V stone = 25
m = A: (1) the total gravity of the stones in the bottle;
2) The total volume of the stones in the bottle is 1 10-4m3;
3) The density of the stones in the bottle.
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This is the second time I've answered this question, and I wonder if the last one who asked this question would be with Ichi.
The volume of 250 grams of water is 250ml, so 450-250 = 200ml, that is, 200 cubic centimeters of stones are needed.
Mass = volume multiplied by density, stone mass = 200 * grams.
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The volume of the bottle is 500ml, and the water overflows to the mouth of the bottle, indicating that the total volume of water plus the volume of stones is 500ml, and subtracting the volume of stones from the total number is equal to the volume of water! 32 times 5 cubic centimeters to get the total volume of the stone is 160 cubic centimeters. 500 minus 160 equals 340 cubic centimeters.
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1 cubic centimeter = 1 ml
32*5=160 cubic centimeters = 160ml
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Do I need to log in to the library every day?
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