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Ulleksa [173]
3 years ago
13

1. Two students have volunteered to explore the galaxy in a

Physics
1 answer:
LiRa [457]3 years ago
7 0

Answer:a

Explanation:

I guess

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A disk made of many small particles of Rock and ice in orbit around a planet is called
aleksandrvk [35]
The correct answer is ring. A disk made of many small particles of rock and ice in orbit around a planet is called ring. The rings of the planet Saturn is considered to be the most extensive planetary rings system in the Solar System. 
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3 years ago
Which of the following can only be dual sports? A. Paddleball B. Table tennis C. Racquetball D. Beach volleyball
stiks02 [169]

Answer:

I think beach volleyball is a dual sport.

7 0
3 years ago
N what way are all sound waves and light waves similar?
bulgar [2K]
<span>They both transmit energy </span>
4 0
3 years ago
a crane lifts a 35000 N steel girder a distance of 25 m in 45 s. How much power did the crane require to lift the girder
Angelina_Jolie [31]
Hello.

The formula for Power is Work divided by Time; however, we do not have our value for Work - yet.
To find for the Work inputted, we need to use its formula: Force * Distance.

Let's multiply our Force by our Distance. Remember that our Force is always  measured in Newtons (N), and our Distance is measured by Meters (M).
35,000 * 25 = 875,000 J (Unit for Work is "J" or "Joules")

Now that we have the value for Work, let's apply it to our Power formula.
P = 875,000 / 45; 19,444.44~

The Power required to lift the girder is 1944.44~ W (Unit for Power is "W" or "Watts").

I hope this helps!
7 0
3 years ago
Which setup could not be used to induce an electric current?
cricket20 [7]

Answer:

Spinning permanent magnets within an array of fixed permanent magnets.

Explanation:

Any relative motion between magnets (be they permanent or electromagnetic) and a coil of wire will induce an electric current in the coil.

What will not induce an electric current is the relative motion between the two coils of wire (because there is no change in magnetic field), or the relative motion between two magnets (there are no coils of wire to induce the current into).

Therefore, spinning permanent magnets within an array of fixed permanent magnets does not induce an electric current.  

<em>In all other choices,  coils of wire are there to be induced current into, and magnets are present to create changing magnetic fields. </em>

5 0
3 years ago
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