89 Physics
2X 2074 Set A Q. No. 9d The period of moon revolving under the
gravitational force of the earth is 27.3 days. Find the distance
of the moon from the centre of the earth if the mass of earth
is 5.97x1024 kg.
[4]
Ans: 3.83 x 108 m

Nucleus for question ome

C. the electric current passes from the slip rings, through the brushes, and to the collection device.

Stars are born within the clouds of dust and scattered throughout most galaxies. a familiar example of such as a dust cloud is the orion nebula. turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. as the cloud collapses, the material at the center begins to heat up. known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star. three-dimensional computer models of star formation predict that the spinning clouds of collapsing gas and dust may break up into two or three blobs; this would explain why the majority the stars in the milky way are paired or in groups of multiple stars.therefor, i would say the answer is: dust and gases contract.i hope this ! < 3

The answer is b. cellular respiration