Absolutely ! You're breathing a mixture like that right now.
Earth's atmosphere ... except for the small amounts of carbon dioxide
and water vapor ... is a mixture of gases in their elemental form. A few
of them include nitrogen, oxygen, neon, argon, krypton. All elements.
Fitness can only be achieved only through A. Frequency
Answer:
0Nm, no work is done.
Explanation:
Work done is defined as the Force per distance meaning force times the distance moved in the direction of the force.
Now the body of mass 50g has a centripetal force acting on it directed towards the centre. Now in actuality the body stays along the circle it doesn't really move to the centre of the circle.
Hence the force doesn't move a distance, and so from the definition of work done;
F×d ; d =0
Hence work done = mv2/r × 0= 0Nm
