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  • Question #15fd1 - Socratic
    Ball has greater rest energy Ball has greater kinetic energy Rest Energy It can be calculated with the famous Einstein's Equation, which gives us the concept of mass-energy equivalence E=mc^2 where m stands for mass of the object and c is the speed of light and is equal to 3xx10^8 m s (a) Ball E_(ball)(rest)=m_(ball)c^2 Inserting given values, in SI units E_(ball)(rest)=0 1xx(3xx10^8)^2
  • Question #acaa5 - Socratic
    (b) Coulomb's force supplies the centripetal acceleration for the orbiting electron, both being equal while the system is in equilibrium From Classical mechanics we get the following expression
  • Site Map - Octet Rule Questions and Videos | Socratic
    Beryllium has an atomic number of #2# What is its electron configuration? Will it lose #2# electrons or gain #6# to form an ion? How many electrons does potassium have to give up in order to achieve a noble-gas electron configuration? What are the limitations of Octet Rule? How does calcium obey the octet rule when reacting to form compounds?
  • Question #96bee - Socratic
    14 0 × 10^23 molecules 1 mole of molecules = 6 022 × 10^23 molecules 2 34 moles of H_2O molecules = 2 34 cancel ("mole") × 6 022 × 10^23 ("molecules") cancel ("mole") = 14 0xx10^23 molecules
  • Question #2ba6e - Socratic
    one example is Carbon in the form of graphite Carbon when it is the form of graphite ( 2s^2 2dp^2 ) conducts electricity Carbon forms layers that are able to shift allowing the electrons to also move This allows graphite to conduct electricity
  • Question #0063b - Socratic
    This question demands a good understanding of the quantitative relationships between solution concentration expressions, as well as stoichiometry calculations (that never go away) There are, (11 6mol) L * (100 5g) (mol) approx 1 17*10^3g of HClO_4 in one liter of solution, which has a total mass of, (1 67g) (mL) * (10^3mL) L = 1 67*10^3g Hence, (1 17*10^3g) (1 67*10^3g) * 100% approx 69 8%
  • Question #27829 - Socratic
    Actually, some parallelograms have lines of symmetry Others don't Rhombi and squares actually have lines of symmetry: So do rectangles: But some parallelograms don't: It's simply a matter of the side lengths and angles in some parallelograms, which separate them and determine whether or not they have symmetry I hope that helps!
  • Question #0388c - Socratic
    Use the result that the angle subtended by a chord at the center of a circle is twice that it subtends at the periphery Join the center O of the circle to the points P, Q and R Now angle RPO = pi 2 -angle SPR and so _ POR = pi -2 _ RPO = 2 _ SPR Hence _PQR = 1 2 of _POR = _ SPR Since the angle _ PSR is common between the two triangles, they are similar
  • Musical Genre - Music Theory | Socratic
    The best videos and questions to learn about Musical Genre Get smarter on Socratic
  • Question #3ff7f - Socratic
    See the proof below We need tanA=sinA cosA cotA=cosA sinA cos^2A+sin^2A=1 Therefore, "LHS"=tan^2A (1+tan^2A)+cot^2A (1+cot^2A) = (sin^2A cos^2A) (1+sin^2A cos^2A)+ (cos^2A sin^2A) (1+cos^2A sin^2A) =sin^2A (sin^2A+cos^2A)+cos^2A (sin^2A+cos^2A) =sin^2A+cos^2A =1 ="RHS" "QED"





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