Exercise 9: Black holes are suspected when a visible star is being noticeably pulled by an
invisible partner that is more than 3 times as massive as the sun. a) If a red
giant (a dying star) is gravitationally accelerated at 0.075 m/s2 toward an
object that is 9.4 x 1010 m away, how large a mass must the unseen body
possess? b) How many times more massive is the object than the sun?
(Mg = 1.99 % 1030 kg)
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KITAM

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?