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2 years ago

I need help me with my question

Physics

1 answer:

lisov135 [29]2 years ago

4 0

The tilt of the moon's axis does not allow for monthly alignment, so the lunar and solar eclipse do not happen every month.

<h3>How do the lunar and solar eclipse occur?</h3>

For the occurrence of lunar and solar eclipse, the sun, moon and the earth must remain in a plan and along a straight line.
When the earth appears in between the sun and the moon, lunar eclipse occurs.
When the moon appears in between the sun and the earth, solar eclipse occurs.
The moon and earth are rotating not only around the sun, but also around the black hole of Milky way galaxy.
So they are not present in a plan as well as in a straight line in every full moon and new moon time.

Thus, we can conclude that the option D is correct.

Learn more about the lunar eclipse and solar eclipse here:

brainly.com/question/8643

#SPJ1

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Where in a river would you find fish that are adapted to low light and low oxygen levels?

JulijaS [17]

No place in the river is characterized like this

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3 years ago

Read 2 more answers

Consider identical spherical conducting space ships in deep space where gravitational fields from other bodies are negligible co

Illusion [34]

Answer:

q = 8.61 10⁻¹¹ m

charge does not depend on the distance between the two ships.

it is a very small charge value so it should be easy to create in each one

Explanation:

In this exercise we have two forces in balance: the electric force and the gravitational force

F_e -F_g = 0

F_e = F_g

Since the gravitational force is always attractive, the electric force must be repulsive, which implies that the electric charge in the two ships must be of the same sign.

Let's write Coulomb's law and gravitational attraction

$k \frac{q_1q_2}{r^2} = G \frac{m_1m_2}{r^2}$

In the exercise, indicate that the two ships are identical, therefore the masses of the ships are the same and we will place the same charge on each one.

k q² = G m²

q = $\sqrt{ \frac{G}{k} }$ m

we substitute

q = $\sqrt{ \frac{ 6.67 \ 10^{-11}}{8.99 \ 10^{9}} }$ m

q = $\sqrt{0.7419 \ 10^{-20}}$ m

q = 0.861 10⁻¹⁰ m

q = 8.61 10⁻¹¹ m

This amount of charge does not depend on the distance between the two ships.

It is also proportional to the mass of the ships with the proportionality factor found.

Suppose the ships have a mass of m = 1000 kg, let's find the cargo

q = 8.61 10⁻¹¹ 10³

q = 8.61 10⁻⁸ C

this is a very small charge value so it should be easy to create in each one

6 0

2 years ago

A kayakeris paddling 2.50 m/s at an angle of 45° (northeast) and the current is moving 1.25 m/s at an angle of 315° (southeast).

PIT_PIT [208]

The kayaker has velocity vector

v = (2.50 m/s) (cos(45º) i + sin(45º) j )

v ≈ (1.77 m/s) (i + j )

and the current has velocity vector

w = (1.25 m/s) (cos(315º) i + sin(315º) j )

w ≈ (0.884 m/s) (i - j )

The kayaker's total velocity is the sum of these:

v + w ≈ (2.65 m/s) i + (0.884 m/s) j

That is, the kayaker has a velocity of about ||v + w|| ≈ 2.80 m/s in a direction θ such that

tan(θ) = (0.884 m/s) / (2.65 m/s) → θ ≈ 18.4º

or about 18.4º north of east.

5 0

2 years ago

please help !!!!!!!!!!!!!!!!!! give the answer to the question i. which lighthouse will be warmer during the day time and why ?

Lostsunrise [7]

Answer:

I. light house 1 will be warmer during the day ii. light house 2 will be warmer at night.

Explanation:

Because the land conducts heat better than water the light house farthest away from the water will get hotter during as the ground will heat up faster than the water. But this also means that the ground will lose heat faster at night where the water won't making the light house closest to the water hotter at night.

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3 years ago

In what state is gold at a 800°c

Scilla [17]

Gold would be a solid

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2 years ago