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ikadub [295]
3 years ago
9

An atom of gadolinium has an atomic number of 64 and a mass number of 154. how many electrons, protons, and neutrons does it con

tain?
Physics
1 answer:
Svetllana [295]3 years ago
5 0
No. of protons = atomic number = 64
no. of neutrons = mass no. - no. of protons= 154 -64 = 90
no. of electrons = no. of protons = 64
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A student sits on a pivoted stool while holding a pair of weights. The stool is free to rotate about a vertical axis with neglig
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Answer:

<u>Please Mark As Brainliest!!</u>

a) 4.99 rad/sec b) 6.24 rad/sec c) 7.03 J

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If we take into account that the angle rotated during one turn is 2π rads, by definition of angular velocity, we can get this value as follows:

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3 years ago
A 0.5 m diameter wagon wheel consists of a thin rim having a mass of 7 kg and six spokes, each with a mass of 1.2 kg. 1.2 kg 7 k
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Explanation:

It is given that,

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The moment of inertia of the rod about one end is given by :

I_2=\dfrac{m_2l^2}{3}

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So, the net moment of inertia of the wagon is :

I=I_1+I_2

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3 years ago
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