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NikAS [45]
3 years ago
10

what happens to the period of revolution for the planets as they move farther away in position from the sun

Physics
1 answer:
Marina CMI [18]3 years ago
3 0
It increases. Mercury takes 88 days to orbit the sun once. The Earth takes a year. Pluto takes 248 years.
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PLZ HELP!!! Detailed PLZ!
Korolek [52]

Answer:

Potential Energy = 294J, Kinetic Engergy = 48.02J

Explanation:

We have these formulas:

Potential Energy = mass * gravitational force * height (m) = 1 * 9.8 * 30 = 294(J)

Kinetic Energy = 1/2 * mass * velocity^2 = 1/2 * 1 * 9.8^2 = 48.02 (J)

As the rock falling at an acceleration of 9.8m/s^2 which means for each second, the rock increases 9.8m/s. I think we are missing time to find the instantaneous velocity, the formula is (initial displacement - final displacement)/ (initial time - final time) which will directly give the final answer for you.

 

5 0
3 years ago
1.An electrician is deciding what type of material to use for wires. Based on the periodic table, which of the following would b
Alinara [238K]
Without specifics, the best element to conduct electricity would be copper.
5 0
3 years ago
In static equilibrium, the potential difference between two points inside a solid piece of metal Group of answer choices is zero
levacccp [35]

Answer:

it is zero because the electric gap is zero within the material

Explanation:

In a metal you have many free electrons, and fixed charges formed by nuclei and electrons that are not free; therefore the charge carriers are the free electrons, these have the same negative charge and due to the lectrostatic force they repel each other as far as possible without leaving the material, this implies that at two points there must be the same potential because otherwise there would be a net Caesarian force accumulating charge in a part that would be eliminated by the Coulomb force.

With this we can review the statements the strap is: it is zero because the electric gap is zero within the material

4 0
3 years ago
Calculate the horizontal projectile range with the cannon elevated 6m above the x-axis, with an initial speed of 14 m/s and an i
Paul [167]

Answer:

d = 20.25 m

Explanation:

h = 6m, V = 14 m/s, θ=14°

⇒ Vx=V × Cosθ=13.58 m/s and Vy = V × Sinθ=3.39 m/s

to find time t by h=-Vy t + 1/2 g t² (after putting value and simplifying) (-ve for downward motion)

4.9  t² - 3.39 t - 6 =0

⇒ t=1.5 sec (ignoring -ve root)

Now Vx = d/t

13.5 m/s = d / 1.5 s    ⇒ d = 20.25 m

5 0
3 years ago
Read 2 more answers
An object with a velocity of 15 m/s and has a kinetic energy of 1125 J, what is the mass of the object?
BARSIC [14]

Answer:

K= 1/2 mv^2

m= 2K/v^2= 2250/ 225= 10 Kg

6 0
2 years ago
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