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Fynjy0 [20]
3 years ago
14

Astronomers use tiny wobbles of distant stars to detect the presence of planets orbiting those stars. This occurs because the st

ar exerts a gravitational pull on the planet while the planet
Physics
1 answer:
Zielflug [23.3K]3 years ago
5 0
Orbits or revolves around the sun
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Which process enables the boy to see over the wall?
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Answer:    yeah it is reflection

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3 years ago
Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 40 miles per hour can s
Daniel [21]

Answer:

d = 100.8 ft

Explanation:

As we know that initial speed of the van is 40 miles then the stopping distance is given as 70 feet

here we know that

v_f^2 - v_i^2 = 2 ad

so here we have

0^2 - 40^2 = 2 a (70 feet)

now again if the speed is increased to 48 mph then let say the stopping distance is "d"

so we will have

0^2 - 48^2 = 2 a (d)

now divide the above two equations

\frac{40^2}{48^2} = \frac{70 feet}{d}

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4 0
4 years ago
Which elements will bond ionically with barium such that the formula would be written as BaX2? A) Nitrogen, chlorine, and sodium
erma4kov [3.2K]

The answer would be:

B. Chlorine, iodine and Fluorine

Barium has 2 valence electrons. To satisfy the BaX₂ , this would mean that Barium will need to give one of each of its electrons. The elements that need 1 electron would be those that have 7 valence electrons to complete the octet. These elements would fall in group 7 or halogens. Chlorine, iodine and fluorine are all in Group 7, so this would be the best choice.

7 0
4 years ago
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Boat A and Boat B have the same mass. Boat A's velocity is three times greater than that of Boat B. Compared to
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Answer:

nine times as much.

Explanation:

K.E of A = 9 times K.E of B

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What is refraction of light?
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bending of light

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