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Liono4ka [1.6K]
3 years ago
7

Astronomy can best be described as a/an

Physics
2 answers:
Korolek [52]3 years ago
7 0
As·tron·o·my- <span>the branch of science that deals with celestial objects, space, and the physical universe as a whole. </span>That's the definition hope it is what you need and that it helps:)
True [87]3 years ago
5 0
The study of heavenly bodies. 

<span>How that differs from astrophysics, astro dynamics, cosmology, etc., I'm not entirely sure.</span><span />
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A 3 kg rubber block is resting on wet concrete. The coefficient of static friction is 0.3. What is the minimum force that must b
mrs_skeptik [129]

Answer:

You would have to find the friction force of the rubber block which would be found with the equation of Normal force (mass*gravity) times cooeficient of friction which would give 8.82 N for the amount of friction and because you need more force than 8.82 N (assuming gravity is 9.8)

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3 years ago
On earth, 1 kg = 9.8 = 2.2 lbs. On the moon, 1 kg = 1.6 n = 0.37 lbs.
Kruka [31]
They're never 'equal'. 1 kilogram is 1 kilogram everywhere. It weighs about 2.2 pounds on Earth, and it weighs about 0.37 pound on the moon. On the way between, if the rocket engines are not burning, it weighs nothing.
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3 years ago
The ratio of Na to O is 2:1. What is the chemical formula for this ionic compound? NaO NaO2 Na2O Na2O2
zlopas [31]

its C because i just anwserd it & it was right

3 0
4 years ago
Read 2 more answers
g A loop circuit has a resistance of R1 and a current of 2 A. The current is reduced to 1.4 A when an additional 2.2 Ω resistor
Mrrafil [7]

Answer:

R1 = 5.13 Ω

Explanation:

From Ohm's law,

V = IR............... Equation 1

Where V = Voltage, I = current, R = resistance.

From the question,

I = 2 A, R = R1

Substitute into equation 1

V = 2R1................ Equation 2

When a resistance of 2.2Ω is added in series with R1,

assuming the voltage source remain constant

R = 2.2+R1,  and I = 1.4 A

V = 1.4(2.2+R1)................. Equation 3

Substitute the value of V into equation 3

2R1 = 1.4(2.2+R1)

2R1 = 3.08+1.4R1

2R1-1.4R1 = 3.08

0.6R1 = 3.08

R1 = 3.08/0.6

R1 = 5.13 Ω

6 0
3 years ago
A comet speeds up as it approaches the Sun. Which statement about its kinetic energy is correct?(1 point)
krok68 [10]

A comet speeds up as it approaches the Sun. Which statement about its kinetic energy is correct option is - (1) The comet has no kinetic energy because it is in outer space.

  • Large ice and dust-based bodies known as comets circle the Sun. These ancient objects, which are best known for their long, streaming tails, are relics from the solar system's birth 4.6 billion years ago. The majority of comets are located outside of our solar system. Some are found in the Kuiper Belt, a vast disc that extends past Neptune's orbit. These are known as short-period comets. They orbit the Sun in lesser than 200 years.
  • The Outermost Layer, the solar system's sphere-shaped outer edge, which is nearly 50 times further from the Sun than the Kuiper Belt, is home to additional comets. Because of how much longer it takes them to orbit the Sun, these are known as long-period comets. The comet with the longest known orbit completes one orbit in excess of 250,000 years.

To know more about comet

brainly.com/question/8705662

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6 0
1 year ago
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