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The measured volume of Apple immersed in water is 1.2 × 10-4 Power M & #, and the buoyancy of apple is calculated? g=10n/kg
Known: g = 10N / kg
V = 1.2 × 10-4 Power M & # 179;
ρ water = 1n / kg
F floating = ρ water GV drainage = 10N / kg × 1.2 × 10-4 Power M & # 179; × 1n / kg = 1.2N
A: the buoyancy of apple is 1.2N
When the empty bottle with a mass of 50g is filled with water, the total mass is 1300g and the density of kerosene is 0.8 × 10 ^ 3kg / m ^ 3,
What is the total mass?
Water = 1300g-50g = 1250g = 1.25kgv water = m water / ρ water = 1.25kg/1000kg/m & # 179; = 1.25 × 10 ^ - 3M & # 179; according to the title, V oil = V water = 1.25 × 10 ^ - 3M & # 179; m oil = ρ oil, V oil = 0.8 × 10 ^ 3kg / M & # 179; = 1.25 × 10 ^ - 3M & # 179; = 1kg = 1000g. Its total mass: M = m oil + m bottle = 100
Given that the image of the function y = 3x + 2B intersects with the image of the function y = - 4x-1 / 2A at a point on the y-axis, then 3A: 2A=___
Is the question wrong? 3a:2a is equal to 3:2 of course
But I get the general idea
Because two functions intersect on the y-axis, so
-0.5a=2b
a=-4b
If you know this, you can get the proportional expression
OK, there is a circular fountain in the street park, 12 meters in diameter. There is a stone road one meter wide around the fountain. How many square meters is the area of this stone road?
3.14 times the square of 7 minus 3.14 times the square of 6
2, - 3, - 5,4,6, 24 points
Choose four of them to calculate 24 points. You can't use the power. Each number can only be used once
2*(-3)-6*(-5)=24
The tangent equation of curve f (x) = LNX at point (1, f (1)) is?
f(x) = lnx
f'(x) =1/x
f'(1) = 1
Tangent equation
y-f(1) = 1(x-1)
y - 0 = x-1
y =x-1
The volume of the bucket is 24 cubic decimeters, the bottom area is 7.5 square decimeters, and there is a loophole 0.7 decimeters away from the mouth of the bucket. Now how many liters of water can this bucket hold? Remember, it's liters! (the number is the whole number.)
Bucket height: H1 = 24 / 7.5 = 3.2 decimeters
Actual water loading height: h2 = 3.2-0.7 = 2.5 decimeters
Maximum water: v = 7.5x2.5 = 18.75 cubic decimeter = 0.01875 liter
The front view of the geometry is a right triangle (one right side is 1, the other is 3), the side view is a semicircle, and the top view is an isosceles triangle
The map, according to your description, should be a conical position split to see
The surface area consists of three parts;
Half bottom: π * 4 / 2 = 2 π
Half cone side: π * 2 * 2 * 3 ^ 0.5 = 2 * 3 ^ 0.5 * π
Area of isosceles triangle: 4 * 2 * 2 ^ 0.5 / 2 = 4 * 2 ^ 0.5
3 ^ 0.5 is the square root of 3
Calculate the area of the parallel figure enclosed by the curve y = e ^ x, y = e ^ - X and the straight line x = 2
S = ∫₀²[e^x - e^(-x)]dx
= [e^x + e^(-x)]|₀²
= e² + 1/e² - (1 + 1)
= e² - 2 + 1/e²
How many cubic meters is a ton of broken stone?
Bulk density, the weight of unit volume of bulk material in the state of natural accumulation, is called bulk density, which is related to the composition of different minerals, particle size of fragments, the size of voids or pores
RELATED INFORMATIONS
- 1. The total mass of a bottle filled with water is 64kg, the total mass of kerosene is 56g, the known bottle mass is 24g, and the kerosene density is calculated
- 2. The bottle can hold 0.5kg water, and the maximum can hold 0.8 × 103kg / m3 kerosene______ kg．
- 3. A container that can hold 1kg of water can hold 1kg of kerosene and sulfuric acid
- 4. The density of kerosene is 0.8 × 10 ᦉ kg / m ᦉ 179;, a bottle can hold 1 kg kerosene, at most__ Kg of water
- 5. What is the volume of three tons of kerosene? (the density of kerosene is equal to 0.8 times 10 to the third power kg / m3)
- 6. The density of alcohol is 0.8 × 10 & sup3; kg / M & sup3;, and how much buoyancy does a 500 CM & sup3; iron block get when it is immersed in alcohol?
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- 12. The mass of the wooden ball is 1 / 2 of that of the iron ball, and the radius of the wooden ball is twice that of the iron ball (both balls are solid). How many times is the density of the wooden ball (it's better to talk about the volume ratio)
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