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jonny [76]
4 years ago
5

What is the primary difference between the states of matter? color of the substance mass of the substance number of atoms in the

substance amount of movement of atoms in the substance
Physics
2 answers:
Virty [35]4 years ago
6 0

Answer:

solid

gas

gas

Explanation:

Which state of matter has a rigid shape? solid  

Which state of matter is very easy to compress? gas

Which state of matter has atoms that move freely? gas

Arada [10]4 years ago
4 0

The primary difference cannot be color. Why? just because you move from one state to another it doesn't mean it will change colors. Anyways, this isn't a PRIMARY difference, although it can be true.

The mass of the substance CANNOT be changed. Why? Well, according to the law of conservation of mass, mass cannot be created nor destroyed. Not a primary difference.

Number of atoms in the substance cannot change PHYSICALLY, but the number can change CHEMICALLY. Out of the picture!

last but not least, the amount of movement of atoms in a substance is the primary difference between the states of matter. Plasma has super fast atoms that are going in random directions everywhere, and they are spread out, just like the gaseous state. Liquid state has atoms that slide past one another, fill up the container they are in, and are more tightly packed but are still somewhat loose. In a solid, the atoms are moving ever so slightly and they are completely packed and firm, which is why if you hit your table right now it won't melt around your hand (and why it is standing...). Then the last state of matter, the bose-einstein condensate, pretty much reducing the temperature to absolute zero, is when molecular motion is pretty much stopped.

To the point: <u>The amount of movement of atoms in the substance is the primary difference between the states of matter!</u>

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Assume you have four fins each with a mass of 8.0 grams what is the total weight if these four fins
irinina [24]
I do believe the answer would be 2.0 each fin because 2.0+2.0=4.0 do that twice you should get 8.0 let me know if that is correct please hope I helped
6 0
4 years ago
A sling is used to give a stone an initial velocity of 20 at an angle of 30 above the horizontal. The stone travels through the
Luba_88 [7]

Answer:

Option E is correct.

There must be a horizontal wind opposite the direction of the stone's motion, because ignoring air resistance when calculating the horizontal range would yield a value greater than 32 m.

Explanation:

Normally, ignoring air resistance, for projectile motion, the range (horizontal distance teavelled) of the motion is given as

R = (u² sin 2θ)/g

where

u = initial velocity of the projectile = 20 m/s

θ = angle above the horizontal at which the projectile was launched = 30°

g = acceleration due to gravity = 9.8 m/s²

R = (30² sin 60°) ÷ 9.8

R = 78.53 m

So, Normally, the stone should travel a horizontal distance of 78.53 m. So, travelling a horizontal distance of 32 m (less than half of what the range should be without air resistance) means that, the motion of the stone was impeded, hence, option E is correct.

There must be a horizontal wind opposite the direction of the stone's motion, because ignoring air resistance when calculating the horizontal range would yield a value greater than 32 m.

Hope this Helps!!!

7 0
4 years ago
Hooke's law states that the force, F, in a spring extended by a length x is given by
timofeeve [1]

Answer:

dimensions of k are  kg / s^2

Explanation:

F=ma   (Newton's second law)

F=-kx   (Hooke's law)

so equate both

-kx = ma

k = -ma/x

= mass * acceleration / distance  (dimensions, -1 has no dimension)

= kg * m/s^2 / m

= kg / s^2

6 0
3 years ago
The pressure exerted by a gas is 2.0 atm while it has a volume of 350 mL. What would be the volume of this sample of gas at stan
34kurt

Answer:

700 mL or 0.0007 m³

Explanation:

P₁ = Initial pressure = 2 atm

V₁ = Initial volume = 350 mL

P₂ = Final pressure = 1 atm

V₂ = Final volume

Here the temperature remains constant. So, Boyle's law can be applied here.

P₁V₁ = P₂V₂

\frac{P_1V_1}{P_2}=V_2\\\Rightarrow V_2=\frac{2\times 350}{1}\\\Rightarrow V_2=700\ mL

So, volume of this sample of gas at standard atmospheric pressure would be 700 mL or 0.0007 m³

7 0
3 years ago
In a certain region of space, the electric field is constant in direction (say horizontal, in the x direction), but its magnitud
horsena [70]

Answer:

8.3 x 10⁻⁷ C

Explanation:

Electric flux will enter the face at x=0 and exit at face x= 25 m

On the other faces , field lines are parallel so no flux will enter or exit .

Flux entering the face at x = 0

= electric field x face area

= 560 x 25 x 25 = 350000 weber

Flux exiting  the face at x = 25

= 410 x 25 x25

= 256250 weber

Net flux exiting from cube ( closed face )

350000 - 256250  = 93750 web

Apply gauss'es theorem

Q / ε = Flux coming out

Q is charge inside the closed cube

Q / ε = 93750

Q = 8.85 x 10⁻¹² x 93750

= 8.3 x 10⁻⁷ C

7 0
3 years ago
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