Physics: The iss orbits the earth at approximately 400,000m altitude. its mass is 419725 kg. the earth’s average radius and mass are 6.38e6m and 5.97e24kg. what is the orbital velocity of the international space station?

Considering the impedance combination. Connection between series. Considering the first pairing. Determine the corresponding resistance. This uncertainty is in this case. Find the second pairing. Determine the corresponding resistance. Its ambiguity is in this case. The total uncertainty form of the resistors is .A parallel connection of resistances is not considered in this case since it introduces a significant uncertainty in the needed resistance values.Considering a combination of resistances....

The iss orbits the earth at approximately 400,000m - id4000003122766, xxaurorabluexx

Ответ:

AlwaysMarcus5577

06.01.2022

Physics

7.66 km/s

Explanation:

The force of gravity between the Earth and the ISS corresponds to the centripetal force that keeps the ISS in circular motion around the Earth:

$G\frac{mM}{(R)^2}=m\frac{v^2}{R}$

where

$G=6.67\cdot 10^{-11} m^3 kg^{-1} s^{-2}$ is the gravitational constant

m=419725 kg is the mass of the ISS

$M=5.97\cdot 10^{24} kg$ is the mass of the Earth

$R=r+h=6.38\cdot 10^6 m + 400,000 m=6.78\cdot 10^6 m$ is the distance between the ISS and the Earth's centre (given by the sum of the Earth's radius, r, and the ISS altitude, h)

v=? is the orbital velocity of the ISS

Re-arranging the equation and substituting numbers, we find the orbital velocity:

$v=\sqrt{\frac{GM}{R}}=\sqrt{\frac{(6.67\cdot 10^{-11})(5.97\cdot 10^{24} kg)}{6.78\cdot 10^6 m}}=7,664 m/s=7.66 km/s$

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Ответ:

drakkeo

22.04.2020

Physics

Considering the $(500 \pm 50 \Omega)$ impedance combination. Connection between series.

Considering the first pairing.

$\to R_1 = 500+ 50= 550 \Omega \\\\ \to R_2= 550 \Omega\\\\$

Determine the corresponding resistance.

$\to R_{eq} = R_1 +R_2 = 550 + 550 =1100 \Omega\\\\$

This uncertainty is $(1000+10\%)$ in this case. Find the second pairing.

$\to R_1 = 500 - 50 = 450 \ \Omega\\\\ \to R_2 = 500 - 50 = 450 \ \Omega\\\\$

Determine the corresponding resistance.

$\to R_{eq}=R_1+R_2= 450 +450 = 900 \ \Omega\\\\$

Its ambiguity is $(1000 - 10\%)$ in this case. The total uncertainty form $1000 \ \Omega$ of the resistors $(500 \pm 50 \Omega)$ is $(1000\pm 10\%)$ .

A parallel connection of resistances is not considered in this case since it introduces a significant uncertainty in the needed resistance values.

Considering a combination of $(2000 \pm 5\% \Omega)$ resistances. Connecting in parallel. Take the first pairing.

$\to R_1 = 2000+ 5\% = 2000+100= 2100 \ \Omega\\\\\to R_2 = 2000+ 5\% = 2000+100= 2100 \ \Omega\\\\$

Determine the corresponding resistance.

$\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2} =\frac{1}{2100}+\frac{1}{2100}= \frac{1+1}{2100}=\frac{2}{2100}\\\\\frac{1}{R_{eq}}=\frac{2}{2100}\\\\R_{eq}=\frac{2100}{2}= 1050 \ \Omega\\\\$

Its uncertainty in this case is $(1000 \ \Omega + 5\%)$ . Find the second pairing.

$\to R_1 = 2000- 5\% = 2000-100= 1900 \ \Omega\\\\\to R_2 = 2000- 5\% = 2000-100= 1900 \ \Omega\\\\$

Determine the corresponding resistance.

$\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2} =\frac{1}{1900}+\frac{1}{1900}= \frac{1+1}{1900}=\frac{2}{1900}\\\\\frac{1}{R_{eq}}=\frac{2}{1900}\\\\R_{eq}=\frac{1900}{2}= 950 \ \Omega\\\\$

The uncertainty is present here $(1000 \Omega -5\%)$ . Its overall variance form $1000 \ \Omega$ of the resistors $(2000 \Omega + 5\%)$ is $(1000 \ \Omega + 5\%)$ .

This parallel connection of resistance values is not addressed here since it introduces a significant uncertainty in the needed resistance values.

As just a result, the lowest uncertainty is now in the parallel combination of the resistances $(2000 \Omega + 5\%)$ .

Learn more about the resistance:

link

Two resistors are to be combined to form an equivalent resistance of 1000 Ω. The resistors are taken

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The iss orbits the earth at approximately 400,000m altitude. its mass is 419725 kg. the earth’s average radius and mass are 6.38e6m and 5.97e24kg. what is the orbital velocity of the international space station?

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