Answer:

Explanation:
It is given that,


Taking the cross product of v and v such that,




|w| = 13.92
Let
is the unit vector normal to the plane containing u and v. So,


Hence, this is the required solution.
Answer:
84 protons and 128 neutron
Answer:
Convection currents are the result of different heating. Lighter material (warm) rises while heavier (cold) material sinks. This movement of the materials is what causes convection currents! (BTW, it happens in water, in the atmosphere, and in the mantle of Earth!
Explanation:
I hope this helps a little! :)
Linear momentum is the product of mass and velocity. In this case, it is simply:
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