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Greeley [361]
3 years ago
9

What is the chemical name for a sand

Physics
1 answer:
vovikov84 [41]3 years ago
7 0
It is known as silicon dioxide or silica!

Hope this helps!
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For an increase in the bulk modulus of a material but without any change in the density, what happens to the speed of sound in t
vazorg [7]
The speed of sound, c, is given by the Newton-Laplace formula
c = \sqrt{ \frac{K}{\rho} }
where
K = bulk modulus
ρ =  density

Because the density is constant, the speed of sound is proportional to the square root of the bulk modulus.

Therefore when the bulk modulus increases, the speed of sound increases by the square root of the bulk modulus.

For example, if K is doubled, then
c = \sqrt{2K} = \sqrt{2} \sqrt{K}

Answer:
If the bulk modulus increases by a factor of n, then c increases by a factor of √n.

7 0
3 years ago
If ice didn't float, but sank instead, this change wouldn't affect aquatic life. true of false
ruslelena [56]

Answer:

No it will not (false)

Explanation:

I say this because if anything the ice will sink and melt from a solid to a liquid and that will lead to i guess more water for the aquatic life. (THIS IS A THEORY SHAWTY)

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3 years ago
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A chef holds a 55 g egg above the floor. The egg has 0.65 J of gravitational potential energy. How far above the ground is the e
Anuta_ua [19.1K]
Potential energy = m.g.h
0.65 J = 55/1000 x 10 x h
0.65 J = 0.55 × h
13/11 m = h
8 0
3 years ago
The masses of two metal blocks are measured. Block A has a mass of 8.45 g and Block B has a mass of 45.87 g. How many significan
Lera25 [3.4K]

Answer:

3 sig figs total mass is 54.32g

Explanation:

It is 3 sig figs because that is the accuracy that Block A was measured to

8 0
3 years ago
What is the magnitude (size) and direction of the cumulative force acting on the car shown in the picture above?
zaharov [31]

Answer:

B

Explanation:

.....50N-20N =30N ...

3 0
3 years ago
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