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Art [367]
3 years ago
14

What is the shape of the earth's orbit around the sun?

Physics
2 answers:
Daniel [21]3 years ago
7 0
<span>............D. Elliptical</span>
valkas [14]3 years ago
7 0
It's orbit is elliptical
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What are the units, if any, of the particle in a box wavefunction. What does this mean?
SIZIF [17.4K]

Answer:

  • [\psi]= [Length^{-3/2}]
  • This means that the integral of the square modulus over the space is dimensionless.

Explanation:

We know that the square modulus of the wavefunction integrated over a volume gives us the probability of finding the particle in that volume. So the result of the integral

\int\limits^{x_f}_{x_0} \int\limits^{yf}_{y_0} \int\limits^{z_f}_{z_0} |\psi|^2 \, dz \,  dy \,  dx

must be dimensionless, as represents a probability.

As the differentials has units of length

[dx]=[dy]=[dz]=[Length]

for the integral to be dimensionless, the units of the square modulus of the wavefunction has to be:

[\psi]^2 = [Length^{-3}]

taking the square root this gives us :

[\psi] = [Length^{-3/2}]

5 0
3 years ago
Earth is slightly closer to the sun in january than in july. How does the area swept out by earth’s orbit around the sun during
mr Goodwill [35]

This is because both areas are the same.

6 0
3 years ago
The SAME amount of current I passes through three different resistors. R2 has twice the cross-sectional area and the same length
Snezhnost [94]

Answer:

resistor R₂ has the lowest current density

Explanation:

The current density is

          j = I / A

now let's analyze each case

a) R₂ has an area 2A₀ and a length L₀ that R₁

b) R₃ has an area Ao and a length 3L₀ what R₁

we can see that all the area is given in relation to the resistance R₁

 

the current density in R₁ is

         j₁ = I / A₀

the current density in R₂

         j₂ = I / 2A₀

         j₂ 2 = ½ I/A₀

the current density in R₃

         j₃ = I / A₀

         j₂ < j₁ = j₃

therefore resistor R₂ has the lowest current density

5 0
3 years ago
What is at the center of a black hole
mafiozo [28]
The center of the ghole is the singularity. or a point where extremely large amounts of matter are crushed into an infinitely small amount of space. hope it helps :)
6 0
3 years ago
What is the independent variable and dependent variable of Justin wants to determine the effect of fertilizer on the growth of g
ICE Princess25 [194]
The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.
8 0
3 years ago
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