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2 years ago

How many of our solar system's large moons orbit their planets in the same direction as their planet rotates?

1 answer:

4 0

There are 171 moons, or natural satellites, orbiting the planets in our solar system; Earth, Mars, Jupiter, Saturn, Uranus, and Neptune have 1, 2, 66, 62, 27, and 13 moons, respectively. The following is a list of some of the major planetary moons, including those of the dwarf planet Pluto.

Out of them, Most of the large moons in the Solar System have prograde orbits. This means that they orbit their planet in the same direction as the planet is rotating.

Why do all the planets orbit in the same direction?

The same reason (almost) all of them rotate in the same direction: because of the conservation of angular momentum. Before a star and its planets exist, there's just a cloud of disorganized gas and small molecules. The Solar System formed from such a cloud around 4.6 billion years ago.

To learn more about Large moons here

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which statement is true about the atomic mass? a. it is never greater than the atomic number b. it always equal the atomic numbe

Shtirlitz [24]

D. it can be greater than the atomic number

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3 years ago

Read 2 more answers

8. Two spheres of mass 2 kg and 3 kg respectively are situated so that the gravi- tational force between them is 2,5 x 10-8 N. C

wlad13 [49]

Question :-

Two spheres of mass 2 kg and 3 kg respectively are situated so that the gravitational force between them is $\bf 2.5 \times 10^{-8 }N$ Calculate the distance between them.

We are given :-

Mass of first sphere, m = 2 kg
Mass of second sphere, M= 3 kg
Gravitational force ,F = $\bf 2.5 \times 10^{-8} N$
G = 6.67×10⁻¹¹ Nm²/kg²

We are asked to find distance between them.

We know that according to gravitational law, we have force of attraction between two bodies is directly proportional to the product of masses of bodies and inversely proportional to the square of distance between them.Which is given by –

$\qquad$ $\pink{\twoheadrightarrow\sf F = \dfrac{GmM}{r^2}}$

Substituting values, we get –

$\qquad$ $\twoheadrightarrow\sf 2.5\times 10^{-8} = \dfrac{6.67\times10^{-11}\times2\times3}{r^2}$

$\qquad$ $\twoheadrightarrow\sf 2.5\times 10^{-8} = \dfrac{4.002\times10^{-8}}{r^2}$

$\qquad$ $\twoheadrightarrow\sf \dfrac {r^2}{4.002\times10^{-10}}=\dfrac{1}{2.5\times10^{-8}}$

$\qquad$ $\twoheadrightarrow\sf r^2 = \dfrac{4.002\times10^{-10}}{2.5\times10^{-8}}$

$\qquad$ $\twoheadrightarrow\sf r^2 = 1.6 \times 10^{-10}\times 10^{8}$

$\qquad$ $\twoheadrightarrow\sf r^2 = 1.6 \times 10^{-10+8}$

$\qquad$ $\twoheadrightarrow\sf r^2= 1.6\times10^{-2}$

$\qquad$ $\twoheadrightarrow\sf r=\sqrt{1.6\times10^{-2}}$

$\qquad$ $\twoheadrightarrow\sf r=1.265\times10^{-1} \: m$

$\qquad$ $\pink{\twoheadrightarrow\bf r = 12.65 \:cm}$

Henceforth,distance between them will be 12.65 cm.

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2 years ago

Brake fluid can be used to activate the brakes because it:

Cloud [144]

Answer:

B. Does not compress under pressure

Explanation:

Brake fluids are fluids used to transmit the pressure applied from the brake pedals to the brakes. Fluids are used because they are not as compressible when compared to gases i.e., there is no loss of power when the pressure is applied.

Brake fluids are generally glycol-ether based. They do not corrode the metal parts and have a very high melting point.

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3 years ago

An object has a mass of 450g. What is the gravitational force of the object by earth?

anygoal [31]

Answer:

4.41N or 4.5N (check explanation)

Explanation:

450g = 0.45kg

F = ma

Using 10m/s² = 10(0.45) = 4.5N

Using 9.8m/s² = 9.8(0.45) = 4.41N

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3 years ago

Electrons flow in the wire from a(n) terminal to a(n) terminal

WITCHER [35]

-- Charges are attracted to an opposite charge and
repelled from a similar charge.

-- Electrons carry negative charge.

-- Electrons flow in a wire away from an negative terminal
toward an positive terminal.

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3 years ago