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Whitepunk [10]
3 years ago
5

Consider equal volumes (say 1 l of a given substance in the solid, liquid, and gas phases. arrange them in order of decreasing m

ass based on the trend for the average substance. if the mass difference between samples is relatively small (10% or less, rank the items as equivalent.
Physics
2 answers:
lana [24]3 years ago
6 0
The particles in solids are closely packed together, which means that the amount of substance in solids are more compared to the liquid and gases of having the same volume. The arrangement of the phases in decreasing masses will then be,
                                      solid, liquid, and gas
Ad libitum [116K]3 years ago
4 0

Answer:

In the common cases, solids have all the particles close together and held in place, liquids have the particles close together (less than solids) but not held, and gases have the particles more separated than the previous cases.

So, in a defined volume, usually, solids will have more mass, this is because particles are close together and you can put more particles in a given volume, then comes liquid, and the comes to gas.

An exception of this can be water, where the solid-state is less dense than the liquid state (this is why ice floats in liquid water)

Here for a fixed volume, liquid water has more mass than the solid-state, and the solid-state has more mass than the gas state.

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The skater is has a mass of 75 kg. Find the total Potential energy of the skater at the top of the ramp at 6 m.
olga_2 [115]
Epot= mgh= 75*9,81*6= 4415 j
5 0
3 years ago
The experiments Galileo performed, such as rolling a ball down an inclined plane, are important because they
anyanavicka [17]

Galileo Galilei is one of the key figures in the history of Science, being the first to apply the experimental-mathematical scientific method. He carried out experiments and careful observations in kinematics (his studies on the trajectory of projectiles are famous) and dynamics (it should be noted his careful experiments with inclined planes), establishing the first law of Dynamics (which Newton will later collect and refine in his Principles); and in Astronomy, with which he could unequivocally support the heliocentric theory.

His experiments were addressed by methodologies that allowed him to precisely find his mathematical calculations and to verify theories he was developing over time. His manuscripts were key to disseminate the applied method and extrapolate them to other scientific areas.

Therefore the correct answer is C.

7 0
3 years ago
An astronaut floating in space throws a wrench forward with the force of 10 N.
Jobisdone [24]

Answer:

10N

Explanation:

1. Every Action has an equal and opposite reAction.

2. If 10N of force is acted upon an wrench, then the wrench will react with an equal amount of force, but in the opposite direction.

7 0
3 years ago
Read 2 more answers
Crest to crest or trough to trough
V125BC [204]
The answer is D. wavelength!
7 0
3 years ago
A long ramp made of cast iron is sloped at a constant angle θ = 52.0∘ above the horizontal. Small blocks, each with mass 0.42 kg
dezoksy [38]

Answer:

For cast iron we have

h = 0.92 m

For copper

h = 1.05 m

For Lead

h = 1.23 m

For Zinc

h = 2.43 m

Explanation:

As we know that final speed of the block is calculated by work energy theorem

W_f + W_g = \frac{1}{2}mv^2

now we have

-\mu_k mg cos\theta(\frac{h}{sin\theta}) + mgh = \frac{1}{2}mv^2

now we have

v^2 = 2gh - 2\mu_k g h cot\theta

v = \sqrt{2gh(1 - \mu_k cot\theta)}

For cast iron we have

4 = \sqrt{2(9.81)(h)(1 - 0.15cot52)}

h = 0.92 m

For copper

4 = \sqrt{2(9.81)(h)(1 - 0.29cot52)}

h = 1.05 m

For Lead

4 = \sqrt{2(9.81)(h)(1 - 0.43cot52)}

h = 1.23 m

For Zinc

4 = \sqrt{2(9.81)(h)(1 - 0.85cot52)}

h = 2.43 m

4 0
3 years ago
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