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Sergeu [11.5K]
4 years ago
11

What Do You Already Know about Density? Material Design. Number each material and sort the items in order from lowest (1) to hig

hest (7) Density.
-Chalk
-Copper
-Flour
-Dry Beans
-Talcum Powder
-Wax
-Wet Sand
Physics
1 answer:
Artemon [7]4 years ago
8 0

The above listed materials are sorted based on the density

<u>Explanation:</u>

  • <u>In simple words density can be stated as mass per unit volume </u>
  1. Density of  dry beans  72kg/m³
  2. Density of  flour 593 kg/m³
  3. Density of wax around 900 kg/m3
  4. Density of Sand, 2 039 kg/m³
  5. Density of chalk 2 499 kg/m³
  6. Density of talc 2 700 kg/m³
  7. Density of  copper 8960 kg/m3

The above listed materials are sorted based on the density

<u></u>

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a baseball pitcher throws a fastball at 98 mph. he also has a slower "changeup" pitch, 75 mph, which he throws identically, same
notsponge [240]

Answer:

For these reasons at 98 mph the path is straighter

Explanation:

To solve this problem we are going to use the kinematic equations, specifically those of projectile launches, let's calculate the distances that the ball travels

     

          X = Vox t

          Y = Yo +  Voy t - ½ g t²

They tell us that the only parameter that changes is the speed, so the distance to the plate is known

          t = Vox / x

 

We replace

         Y- Yo = Voy (Vox / X) - ½ g (Vox / x)²2

       Y -Yo = Vo² sinθ cos θ / x - ½ g Vo² sin²θ / x²

        Y -Yo = Vo² (sinθ cosθ / x - ½ g sin²θ / x²)

The trajectory will be flatter when Y is as close as possible to Yo, when examining the right side of the equation, the amount in Parentheses is constant and to what they tell us that the angles and the distance the plate does not change.

Consequently, of the above, the only amount changes is the initial speed if it increases the square of the same increases, so that the height Y approaches the height of the shoulder, that is, DY decreases. For these reasons at 98 mph the path is straighter

7 0
3 years ago
What happens to the volume the gas occupies when the pressure on a gas increases?
taurus [48]
Each time they collide with the walls they exert a force on them. More collisions mean more force, so the pressure will increase. When the volume decreases, the pressure increases. This shows that the pressure of a gas is inversely proportional to its volume.
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3 years ago
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The distance between two parallel wires carrying currents of 10 A and 20 A is 10 cm. Determine the magnitude and direction of th
Marianna [84]

Explanation:

It is given that,

Current in wire 1, I₁ = 10 A

Current in wire 2, I₂ = 20 A

Distance between wires, d = 10 cm = 0.1 m

Force per unit length is given by :

\dfrac{F}{l}=\dfrac{\mu_oI_1I_2}{2\pi r}

\dfrac{F}{l}=\dfrac{4\pi \times 10^{-7}\times 10\times 20}{2\pi \times 0.1}

\dfrac{F}{l}=0.0004\ N/m

\dfrac{F}{l}=4\times 10^{-4}\ N/m

So, the magnetic force acting per unit length of the wires 4\times 10^{-4}\ N/m. Since, the current is in same direction. So, the force is attractive in nature.

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3 years ago
A cylinder with a piston contains 0.200 mol of nitrogen at 1.50×105 Pa and 320 K . The nitrogen may be treated as an ideal gas.
Alja [10]

Answer:

Q = -105 J

Also we know that for cyclic process change in internal energy is always ZERO

Explanation:

First gas is compressed isobarically such that its volume is half of initial volume

So its temperature is also half

So heat given in this process is given as

Q = nC_p \Delta T

for diatomic gas we have

C_p = \frac{7}{2} R

so we will have

Q = 0.200(\frac{7}{2}R)(160 - 320)

Q = -930.7 J

Now in adiabatic process heat is not transferred

so in this process

Q = 0

so we have

T_1V_1^{1.4-1} = T_2V_2^{1.4-1}

(160)(\frac{V}{2})^{0.4} = T_2(V)^{0.4}

T_2 = 121.26 K

Now it is again reached to original pressure

so temperature will become initial temperature

so heat given in that part

Q_3 = nC_v\Delta T

here we know that

C_v = \frac{5}{2}R

Q_3 = (0.200)(\frac{5}{2}R)(320 - 121.26)

Q_3 = 825.76 J

So total heat given to the system is

Q = -930.7 + 0 + 825.76

Q = -105 J

Also we know that for cyclic process change in internal energy is always ZERO

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The notion that individuals have the right to use lethal force against individuals who enter their home is an example of the inf
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An illustration of the impact of Frontier justice is the idea that people have the right to use fatal force against others who enter their house.

What is Frontier justice?

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  • A biased judge can also be described using this Frontier justice.
  • Frontier justice is characterized by practices like lynching, vigilantism, and gunfighting.
  • Like Frontier justice there is another law, named castle doctrine, also referred to as a castle law or a defense of habitation law, which is a constitutional principle that defines a person's home or any other legally occupied location as a place in which that individual has protections and immunities, allowing one, in certain situations, to use force to safeguard oneself against an attacker, free from criminal action for the consequences.

Learn more about justice here:

brainly.com/question/9003956

#SPJ4

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