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sergeinik [125]
4 years ago
13

Observers in a distant solar system are watching our Sun and using the radial velocity method to try to determine whether the Su

n has planets. Because of the gravitational pull of Jupiter, the observers see the Sun's spectrum slowly redshift and then blueshift by a tiny amount. How long must they observe to see a full cycle?
Physics
1 answer:
Levart [38]4 years ago
8 0

Answer: almost 12 years

Explanation:

Using the radial velocity method, planet hunters can track a sun's spectrum, to determine whether the sun has planets. The spectrum appears first slightly blue-shifted, and then slightly red-shifted. If the shifts are regular, repeating themselves at fixed intervals of days, months, or even years, it  is almost certainly caused by a body orbiting the sun, tugging it back and forth over the course of its orbit. Because of the gravitational pull of Jupiter (about 3,000 times the mass of Earth), In which its average distance from the sun is 480 millions miles and takes nearly 12 years to make one revolution.

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What is the resistance in a circuit that carries a 0.75 A current when powered by a 1.5 V battery?
olga2289 [7]
The formula to use is: I = (<span> ΔV / R )
Once you solve for R, your new formula would be: R= (</span><span> ΔV / I ) 
Plug in your values to get: R = (1.5V / .75A )
Finally, R = 2</span><span>Ω</span>
8 0
4 years ago
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Two 4.952 cm by 4.952 cm plates that form a parallel-plate capacitor are charged to +/- 0.576 nC. What is the electric field str
horrorfan [7]

In order to solve this question, we will need to know the E-field of a capacitor

E = sigma/epsilon naught

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sigma = (.576 x 10^-9)/(4.952x10^-2)^2 = 2.34 x 10^-7

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7 0
2 years ago
How does a perspective drawing differ from an isometric drawing of the same object? when would you use a perspective view in lie
klemol [59]
<span>The quick way to visualize this is to compare isometric and perspective drawings of a cube. In the isometric drawing, all the edges of the cube would be parallel in sets of four. In the perspective drawing, the edges would taper towards one or more vanishing points. The isometric drawing, being easier to construct, perserving all scales and dimensions, is the preferred method for mechanical drawings, and are practical for use in the shop. The perspective drawing, which are trickier to draw properly, and does not preserve scales and dimensions, is the preferred method for architectural drawings, because they illustrate what the eye actually sees.</span>
7 0
3 years ago
What is Balanced and Unbalaced Forces ?
Sauron [17]






Hi Pupil Here is Your Answer ::




➡➡➡➡➡➡➡➡➡➡➡➡➡



Balanced Forces =》 If the resultant of several forces acting on a body is zero, the forces are said to be Balanced Forces.

Or

When two forces of equal magnitudes but acting in opposite direction on an object simultaneously then the object continuous in its state of rest all uniform motion in a straight line such forces acting on the object are known as Balanced Forces.



Unbalance Forces =》 If the resultant of several forces acting on a body is not zero, the forces are said to be Unbalanced Forces.

Or


When two forces of unequal magnitudes act in opposite direction on an object simultaneously then object moves in the direction of the force with larger magnitude forces. These force acting on the object are known as Unbalanced Forces.





⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅





Hope this helps . . . . ..c
5 0
3 years ago
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When does the ball have the greatest and least amount of potential energy?
natali 33 [55]

Answer:

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3 0
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