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iren [92.7K]
3 years ago
14

What is heroism???plz answer​

Physics
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer:

heroism <em>is</em><em> </em><em>great</em><em> </em><em>bravery</em><em>.</em><em>.</em>

hope it helps !

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A truck going 15 km/h has a head-on collision with a small car going 30 km/h.
deff fn [24]
That does not constitute a question. Despite this, my answer is a valid one and so I hope to receive credit. Should you rephrase your question, a proper answer shall be provided.
3 0
3 years ago
in a mass spectrometer ionized molecules are accelerated from rest through a potential difference V into a uniform magnetic fiel
strojnjashka [21]

Answer:

Potential difference = 245 V

Explanation:

First, we have to find velocity at which ionized molecules are accelerated into a magnetic field. Here, magnetic force acts as a centripetal force due to circular path of molecules towards detector slot.

  • B= 0.25 T,d= 12 cm
  • mass = (12+16+16)×1.67×10-27kg

Now, the magnetic force to the centripetal force equates as:

qvB = \frac{mv2}{r} = \frac{mv2}{d/2}

For Velocity (v) :

v = \frac{qBd}{2m}

According to law of conservation of energy, we know that the initial potential energy of the molecules is converted into kinetic energy as they enter into the magnetic field. So,

qV=\frac{1}{2}mv2

Substitute the value of v in above equation:

qV = \frac{1}{2} m \frac{q2B2d2}{4m2}

V = \frac{qB2d2}{8m}

V= 245 V

3 0
3 years ago
Is 51/17 a rational number
mylen [45]

Answer:

Yes.

Explanation:

51/17 is a rational number because "A number is considered a rational number if it can be written as one integer divided by another integer."

6 0
3 years ago
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HELP!! An illustration of a pendulum at 3 positions of a pendulum. The equilibrium position is labeled B. The other two position
zmey [24]

Answer

the answer is A and c

Explanation:

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5 0
2 years ago
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Which of the following shows the correct order of the steps in the scientific method?
Luba_88 [7]
B is correct.

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3 years ago
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