Questions in Grade College

Questions in Grade College

[Terjawab] The loudness, [tex]$L$[/tex], measured in decibels (Db), of a sound intensity, [tex]$I$[/tex], measured in watts is given by [tex]$L=10 \log \frac{l}{l_0}$[/tex], where [tex]$l_0=10^{-12}$[/tex] and is the least intense sound a human ear can hear. Brandon is trying to take a nap, and he can barely hear his neighbor mowing the lawn. The sound intensity level that Brandon can hear is [tex]$10^{-10}$[/tex]. Ahmad, Brandon's neighbor that lives across the street, is mowing the lawn, and the sound intensity level of the mower is [tex]$10^{-4}$[/tex]. How does Brandon's sound intensity level compare to Ahmad's mower? A. Brandon's sound intensity is [tex]$\frac{1}{4}$[/tex] the level of Ahmad's mower. B. Brandon's sound intensity is [tex]$\frac{1}{6}$[/tex] the level of Ahmad's mower. C. Brandon's sound intensity is 20 times the level of Ahmad's mower. D. Brandon's sound intensity is 80 times the level of Ahmad's mower.

[Terjawab] Identify the substances that are likely to dissociate in water. Check all that apply. * sodium bromide ([tex]$NaBr$[/tex]) * potassium hydroxide ([tex]$KOH$[/tex]) * magnesium chloride ([tex]$MgCl_2$[/tex]) * silicon dioxide ([tex]$SiO_2$[/tex]) * sodium oxide ([tex]$Na_2O$[/tex])

[Terjawab] What are the $x$- and $y$-coordinates of point P on the directed line segment from $A$ to $B$ such that $P$ is $\frac{1}{3}$ the length of the line segment from $A$ to $B$? $x=\left(\frac{m}{m+n}\right)\left(x_2-x_1\right)+x_1$ $y=\left(\frac{m}{m+n}\right)\left(y_2-y_1\right)+y_1$ (1,5) (0,3) (-4,-5) (-5,-7)

[Terjawab] An Elimination Period is a period between the commencement of coverage and: A. A standard period of time, usually 4 months B. The insured's next birthday C. The date benefits become payable D. The beginning of the next open enrollment

[Terjawab] Answer using the correct pronoun: a) Their uncle is rich but _ is a very mean person. b) The shopkeeper ignored _ because she had refused to befriend him.

[Terjawab] A patient care technician should identify that which of the following structures of the heart is immediately affected if a sinoatrial (SA) node fails? A. Bundle of His B. Purkinje fibers C. Atrioventricular node D. Interventricular septum

[Terjawab] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Terjawab] A project contingency is included to cover potential increases in indirect costs only. A. True B. False

[Terjawab] Solve the system of equations: [tex] \begin{array}{l} y=-3 x+4 \\ -4 x+y=-10 \end{array} [/tex] A. (-6,22) B. (1,1) C. (2,-2) D. No solution

[Terjawab] Useful volcanic prediction methods currently under study use: A. frequency of tremors B. upward movement of magma C. infrared air photographs D. study of animal behavior