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astraxan [27]
3 years ago
15

A statue is made of bronze, which is an alloy of about 80% copper and 20% tin. Which metal is in the higher concentration in thi

s bronze statue?
A.The concentrations of each metal in the statue are equal.
B.The statue has a higher concentration of copper.
C.Tin is more concentrated in the statue.
Physics
2 answers:
Olenka [21]3 years ago
7 0

Answer:

<h2>B. The statue has a higher concentration of copper.</h2>

Explanation:

We know by given that the statue is made of bronze, which is formed by 80% copper and 20% tin.

So, as you can observe, the copper represents a majority of the statue, that means it has more concentration of copper than tin.

Therefore, the right answer is B. The statue has a higher concentration of copper, because it's made 80% of copper actually.

skad [1K]3 years ago
3 0
The answer is B because it's 80 percent copper, that's a greater number then 20.
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tino4ka555 [31]

Answer:\mu=0.48

Explanation:

Given

inclination \theta =31^{\circ}

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Now using FBD

mg\sin \theta -f_r=ma

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a=g\sin \theta -\mu g\cos \theta

0.99=5.04-\mu 8.4

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7 0
3 years ago
When looking at the chemical symbol, the charge of the ion is displayed as the
Black_prince [1.1K]

Answer:

superscript

Explanation:

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An example is H2O . The 2 present represents two molecule of oxygen and its written as the subscript while Fe2+ in which the 2+ is written up is known as the superscript.

6 0
3 years ago
Help me please Which of the following statements best describes the atoms and molecules that make up a glass
Nataliya [291]

Answer:

The correct option is;

The atoms and molecules of the liquid water are moving, while the atoms and molecules of the glass are not moving

Explanation:

Matter that exist in the liquid or gaseous state consist of molecules that move freely about in the entire containing medium for gas, while the molecules move freely  in the portion of the container occupied by the fluid in the case of liquid fluids

However, the molecules of a solid are fixed within the current shape of the solid and are only free to vibrate within a fixed location and the allow the passage of subatomic particles such as electrons

As such, the glass cup being a solid, consists of molecules fixed in space, while the liquid water consists of molecules which can translate within the portion of the volume of the glass filled with the water.

7 0
3 years ago
When tightening a bolt, you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of t
choli [55]

Answer:

Part a)

\tau = 23.1 Nm

Part b)

\tau = 17.05 Foot pound force

Explanation:

As we know that torque is defined as the product of force and its perpendicular distance from reference point

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\tau = \vec r \times \vec F

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\tau = (0.140)(165)

\tau = 23.1 Nm

Part b)

Now we know the conversion as

1 meter = 3.28 foot

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now we have

\tau = 23.1 Nm

\tau = 23.1 (0.225 Lb)(3.28 foot)

\tau = 17.05 Foot pound force

3 0
3 years ago
2 forces are acting on a body. I forgot the body doesn't it's position or shape, the forces.......a)must be of equal magnitude b
Veseljchak [2.6K]

Answer:

C

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some people may say B but that is wrong because maybe one force is greater than the other so the object would still move even though the forces are in opposite directions and parallel

5 0
3 years ago
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