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4 years ago

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What is the correct answer?

1 answer:

inysia [295]4 years ago

3 0

The answer to your question is metaphase

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For the winter, a duck flies 10.0 m/s due south against a gust of wind with a speed of 2.5 m/s. What is the resultant velocity o

Sati [7]

10.0 m/s + (-2.5 m/s) = 7.5 m/s

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4 years ago

Anybody have the answer?

Anika [276]

IT IS C
or the 3rd choice

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4 years ago

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F.r.e.e points :]]]

Colt1911 [192]

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3 years ago

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Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressu

kotegsom [21]

In this equation

1 Cl2 + 3 F2---> 2 ClxFy

those coefficients are in MOLE (or molecule) ratios. BUT for gases at the same temp and pressure, they are also VOLUME ratios.. why? PV = nRT, V = nRT/P. if RT/P = constant.. V1/n1 = V2/n2 --> n1/n2 = V1/V2..make sense? mole ratios
= volume ratios

so.. what are x and y?
1 Cl2 + 3 F2---> 2 ClxFy

2 Cl's on the left.. x must = 1
6 F2's on the left. y must be 3

1 Cl2 + 3 F2---> 2 ClF3 <span>
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4 years ago

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A tangential force of 1500 N exerted upon the upper surface of a cube of 20 cm edge. Calulate the shear modulus of the cube mata

I am Lyosha [343]

<u>Answer:</u>

<em>The shear modulus of the cube material is $7.5 \times 10^6 N/m^2$ . </em>

<u>Explanation:</u>

<em>Given that shearing force applied F = 1500 N </em>

<em>Displacement produced x = 0.1 cm=0.001 m </em>

<em>side of the cube =20 cm = 0.2 m </em>

Since the object is a cube the upper surface is a square and it is on this surface the shearing

force is applied

<em>area of the upper surface $A=a \times a=(20 \times 10^(^-^2^))^2=400 \times 10^(^-^4^) m$ </em>

<em>shear strain = tan⁡ θ = $\frac {x}{h} = \frac {0.001}{0.2} =0.005$ </em>

<em>shearing stress = $\frac {F}{A} = \frac{1500}{0.04} = 37500 N$ </em>

<em>modulus of rigidity η $= \frac{(shearing \ stress)}{(shearing \ strain)}$ </em>

<em> $= \frac{37500}{0.005}=7.5 \times 10^6 N/m^2$ </em>

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3 years ago