## Question

###### Describe the structure of an atom and define the terms atomic number; atomic symbol, atomic mass, and mass number.

Describe the structure of an atom and define the terms atomic number; atomic symbol, atomic mass, and mass number.

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13. The heights of 1000 students are approrimately normally distributed with a mean of 174,cm and standard deviation of 6.9 cm. Suppose 200 random samples of size % are drawn from this population and the means recorded the nearest (enth of centimerer. Determine 1) The mean and SD of 1 mean b) The uu...

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##### (10 points) Consider the equation y = &r? 421 + 144 You must enter all of your answers as points Use commas to separate mulliple answers. The z-intercepts of the parabola areThe y-intercept of the parabolaThe vertex of the parabolaWhich of these the correct graph 0l y 3r? _ 421 + 144?Graph ==Graph BGraphGraph DGraph EGraph

(10 points) Consider the equation y = &r? 421 + 144 You must enter all of your answers as points Use commas to separate mulliple answers. The z-intercepts of the parabola are The y-intercept of the parabola The vertex of the parabola Which of these the correct graph 0l y 3r? _ 421 + 144? Graph ...

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##### (1 point) Sketch the region of integration, and find the best order of integrating; and then evaluate JRi+= dA with R = {(2,9) |0 < x < 1, 0 < y < 1}.

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##### Point) Consider the equation203 + 6xy y = 312 + 8yOf what type is this equation?The general solution in implicit form is= C.For the initial data 9(2) = 3C has the value C The corresponding solution is y 2. For the initial data '9(O) =-3C has the value C = The corresponding solution is y

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Now flip the model via C1 so that the model assumes the boat conformation and then flip again raising (4 so that the molecule once again in the chair arrangement: Is the chlorine now axial or equatorial? Sketch the model: Which conformation is more stable, the one with chlorine axial or equatorial? ...

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##### A uniform cylindrical steel wire, 55.0 $\mathrm{em}$ long and 1.14 $\mathrm{min}$ in diameter, is fixed at both ends. To what tension must it be adjusted so that, when vibrating in its first overtone, it produces the note $\mathrm{D}^{8}$ of frequency 311 $\mathrm{Hz}$ ? Assume that it stretches an insignifcant amount. (Hint: See Table $14.1 .$ )

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##### Queation 1416KTatom Conaact ~th 26mi dich QArTAyOT Ho Mntcn vollaBe in volaeillh dropped 7u [ Eeeora [email protected] Are Ela Fa 0n?Queatlon 1510 pts4? > canacitoi ana P04ntetor connccdco panory Oi voltaec Athowi chccincuir ATTCI clon_ chcirch whcntnt caDacitor complctcly charecdhov muck enercy Vl De atorea (in joules) the cupacilortQuestion 17PtTnrce Tcistort hattcry Vol7 Circut/1852 Fa 1751 Ra 1 / faconncctco tth V ,Wha wouldtnctOralcauvalcntrcatanccintncpta

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##### (9) The " 'velocity In m/s ofan object moving along a line over the time interval [0,6] Is v() = t2 +3t (a) Find the average velocity ofthe object over thls time interval;(6) Find the llme at which the veloclty equals Its average velocity Or the glven Inzerval:

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