A crate of mass MM starts from rest at the top of a frictionless ramp inclined at an angle αα above the horizontal. Find its speed at the bottom of the ramp, a distance dd from where it started. Do this in two ways. Why did the normal force not enter into your solution?

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.

Give me some answer choices and i will be happy to

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

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