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SIZIF [17.4K]
3 years ago
6

. What is the mass number of the isotope lithium-7?

Physics
2 answers:
Alex17521 [72]3 years ago
7 0

Answer:

7

Explanation:

isotopes are named after there mass number. because there mass number is different and protons no is same

lana66690 [7]3 years ago
4 0

Answer:

7

Explanation:

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How will the motion of a falling whirligig compare to that of a falling paper ball?
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The motion of a falling whirligig is different to that of a falling paper ball due to spinning.

<h3>Type of motion performed by whirligig and falling paper ball </h3>

The motion of a falling whirligig is different from the motion of a falling paper ball because the paper ball falls on the ground without spinning while on the other hand, the whirligig falls on the ground along with spinning.

The falling whirligig performs two motion i.e. one is falling on the ground and the other is spinning during motion whereas paper ball performs one motion i.e. motion in the air towards the ground so we can conclude that the motion of a falling whirligig is different than of a falling paper ball.

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umka2103 [35]

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3 years ago
What parts to all cells have in common?
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7 0
3 years ago
An electron is released from rest in a uniform electric field of magnitude 2.16 x 10^4 N/C. Calculate the acceleration of the el
alexgriva [62]

Answer:

Acceleration of the electron will be 0.379\times 10^{16}m/sec^2          

Explanation:

We have given electric field E=2.16\times 10^4N/C

Charge on electron q=1.6\times 10^4C

So force in the electron F=qE=1.6\times 10^{-19}\times 2.16\times 10^{4}=3.456\times 10^{-15}N

Mass of electron m=9.11\times 10^{-31}kg

Now according to newton second law

F = ma, here m is mass and a is acceleration

So 3.456\times 10^{-15}=9.11\times 10^{-31}a

a=0.379\times 10^{16}m/sec^2

So acceleration of the electron will be 0.379\times 10^{16}m/sec^2

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3 years ago
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