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Alex17521 [72]
3 years ago
5

The volume of a block of iron is 9 cc and its mass is 70.83

Physics
1 answer:
galina1969 [7]3 years ago
6 0
To determine the volume of the aluminum given that it has the same mass as the iron given, we need to divide the mass with the density of aluminum. We calculate as follows:

Volume of aluminum = 70.83 / 2.70 = 26.23 cc

Hope this answers the question. Have a nice day.
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List two examples of energy transformation necessary for the sporting event to take place.
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1. in commentary electrical to sound
2. battery loudspeakers are used chemical to sound
hope it helps
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3 years ago
How do the magnitudes of the inertial (the density times acceleration term), pressure, and viscous terms in the Navier-Stokes eq
Troyanec [42]

Answer:

The general equation of movement in fluids is obtained from the application, at fluid volumes, of the principle of conservation of the amount of linear movement. This principle establishes that the variation over time of the amount of linear movement of a fluid volume is equal to that resulting from all forces (of volume and surface) acting on it. Expressed in This equation is called the Navier-Stokes equation.

The equation is shown in the attached file

Explanation:

The derivative of velocity with respect to time determines the change in the velocity of a particle of the fluid as it moves in space. It also includes convective acceleration, expressed by a nonlinear term that comes from convective inertia forces). With this equation, Stokes studied the motion of an infinite incompressible viscous fluid at rest at infinity, and in which a solid sphere of radius r makes a rectilinear and uniform translational motion of velocity v. It assumes that there are no external forces and that the movement of the fluid relative to a reference system on the sphere is stationary. Stokes' approach consists in neglecting the nonlinear term (associated with inertial forces due to convective acceleration).

Download pdf
5 0
4 years ago
Why does the light in space travel like a wave
Thepotemich [5.8K]

Answer:

basic answer, radiation.

7 0
3 years ago
Read 2 more answers
A lightning flash releases about 1010J of electrical energy. Part A If all this energy is added to 50 kg of water (the amount of
zavuch27 [327]

Answer:

water is in the vapor state,

Explanation:

We must use calorimetry equations to find the final water temperatures. We assume that all energy is transformed into heat

        E = Q₁ + Q_{L}

Where Q1 is the heat required to bring water from the current temperature to the boiling point

      Q₁ = m c_{e} ( T_{f} -T₀)

      Q₁ = 50 4180 (100 - 37)

      Q₁ = 1.317 10⁷ J

Let's calculate the energy so that all the water changes state

     Q_{L}  = m L

     Q_{L}  = 50 2,256 106

    Q_{L}  = 1,128 10⁸ J

Let's look for the energy needed to convert all the water into steam is

     Qt = Q₁ + Q_{L}  

     Qt = 1.317 107 + 11.28 107

     Qt = 12,597 10⁷ J

Let's calculate how much energy is left to heat the water vapor

     ΔE = E - Qt

     ΔE = 10¹⁰ - 12,597 10⁷

     ΔE = 1000 107 - 12,597 107

     ΔE = 987.4 10⁷ J

With this energy we heat the steam, clear the final temperature

     Q = ΔE = m c_{e} ( T_{f}-To)

    ( T_{f}-T₀) = ΔE / m c_{e}

      T_{f} = T₀ + ΔE / m c_{e}

      T_{f} = 100 + 987.4 10⁷ / (50 1970)

      T_{f} = 100 + 1,002 10⁵

      T_{f} = 1,003 10⁵ ° C

This result indicates that the water is in the vapor state, in realizing at this temperature the water will be dissociated into its hydrogen and oxygen components

4 0
3 years ago
What conditions are required for nuclear fusion that prevent it from being used to generate electric energy?
Alona [7]
Answer: the extremely high energy and temperature needed to start and keep the reaction.

Explanation:

Nuclear fusion is the combination of atomic nulei.

Those reactions are able to release huge amounts of energy.

Sun energy comes from fusion reactions, mainly the combination of two hydrogen atoms to form one helium atom. As said with the release of energy.


Nuclar fusion requires extremely high energies to start and keep a reaction. That energy can only be achived with temperatures greater than 40 million kelvins, which so far has been achived only with atomic bomb explosions.

Also, the materials to handle those temperatures, when you talk about confining the reaction, are not available, so far.
5 0
3 years ago
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