The velocity of the tip of the second hand is 0.0158 m/s
Explanation:
First of all, we need to calculate the angular velocity of the second hand.
We know that the second hand completes one full circle in
T = 60 seconds
Therefore, its angular velocity is:

Now we can calculate the velocity of a point on the tip of the hand by using the formula

where
is the angular velocity
r = 15 cm = 0.15 m is the radius of the circle (the distance of the point from the centre of rotation)
Substituting,

Learn more about angular motion here:
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<span>d. electron
J J Thomson discovered the electron, and it was put in his model of the atom.</span>
Answer:
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because they only think about. themselves and they also think that they are always right .
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Fossil fuels like coal, natural gas and oil.
Hopes this helps!