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masha68 [24]
3 years ago
15

4. Which of the following statements about the state of matter is correct? A. Molecules in a solid are disorderly arranged B. So

lids are highly compressible C. Liquids have definite form and volume D. Molecules in a gas move faster than those in a liquid.​
Physics
1 answer:
Zolol [24]3 years ago
6 0

Answer:

B. Solids are highly compressible

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An iron block of mass 10 kg rests on a wooden plane inclined at 30° to the horizontal. It is found
Kaylis [27]

I assume the 100 N force is a pulling force directed up the incline.

The net forces on the block acting parallel and perpendicular to the incline are

∑ F[para] = 100 N - F[friction] = 0

∑ F[perp] = F[normal] - mg cos(30°) = 0

The friction in this case is the maximum static friction - the block is held at rest by static friction, and a minimum 100 N force is required to get the block to start sliding up the incline.

Then

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If µ is the coefficient of static friction, then

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5 0
2 years ago
The core of a certain reflected reactor consist of a cylinder 10 ft high 10 ft in diameter The measured maximum-to-average flux
Westkost [7]

Answer:

The maximum power density in the reactor is 37.562 KW/L.

Explanation:

Given that,

Height = 10 ft = 3.048 m

Diameter = 10 ft = 3.048 m

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Using formula of volume

V =\pi r^2 h

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We need to calculate the maximum power density in the reactor

Using formula of power density

P=\dfrac{E}{V}

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V = volume

Put the value into the formula

P=\dfrac{835\times10^{6}}{22.23\times10^{3}}

P=37561.85 = 37.562\times KW/L

Hence, The maximum power density in the reactor is 37.562 KW/L.

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3 years ago
If the road becomes wet or crowded, you should ____. slow down and increase your following distance All choices are incorrect. m
Vaselesa [24]

Answer:

The first one.

7 0
3 years ago
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