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Fed [463]
3 years ago
5

You hear an _____ when sound bounces off a hard surface.

Physics
2 answers:
Aleksandr [31]3 years ago
7 0
I think b but I’m not completely sure
ludmilkaskok [199]3 years ago
4 0
The answer is B. 100% sure if that.
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The melting point of a substance is the same as its _____ point.
kirza4 [7]

Answer:

Boiling point

Explanation:

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2 years ago
Worried that your cat may be ambushed by a mountain lion, you build a fence around
julia-pushkina [17]

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there speed must be 180

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3 years ago
IM A plastic sphere floats in water with 50.0% of its volume submerged. This same sphere floats in glycerin with 40.0 \% of its
arsen [322]

Density of glycerin is 5/4 times water density.

Density of the sphere is 1/2 times water density.

<h3>How to find the density of sphere floats and glycerin?</h3>

Density is defined as the ratio of mass to volume, that is density is the amount of mass per unit of volume.

A substance's density exist defined as its mass per unit of volume. Density is most frequently represented by the symbol, however Latin letter D may also be utilized. If the mass or volume of an object is altered, the density of the thing may also change. Water, for example, has a specific density. An object will sink if its density exists greater than that of water; it will float if its density is lower.

Since a plastic sphere floats in water with 50% of its volume submerged.

So, the Density of the sphere = 1/2× water density

Since the same sphere floats in glycerin with 40% of its volume submerged.

So, the Density of the sphere = 4/100 × Glycerin density

= 2/5 × Glycerin density

Density of Glycerin = 5/2 of sphere density

Density of glycerin = 5/2 × 1/2 × water density

Density of glycerin = 5/4 × water density

To learn more about the volume of sphere floats refer to:

brainly.com/question/10827296

#SPJ4

6 0
1 year ago
When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about
siniylev [52]

When an automotive battery is fully charged, the mixture of water
and sulfuric acid in it has a specific gravity of about  1.3 .


6 0
3 years ago
Read 2 more answers
Prove the correctness of this equation s=vt + 1/2at​
miss Akunina [59]

Answer:

Equation of motion

Explanation:

this equation is known as the second equation of motion and it is used to calculate the distance travelled (s) by a body in time (t), the body having initial velocity (u) and acceleration (a). This equation has four values in it, so if any three values are known, the fourth value can be calculated.

8 0
3 years ago
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