Answers created by Walker P

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• How are heart sounds normally produced?
  
• What if protein++ comes in urine? Are there any chances of future serious damage? Why does this occur?
  
• What are the coronary arteries?
  
• Does the parasympathetic system slow the digestive system?
  
• Question #6b4bd
  
• What part of the nervous system sends signals to the muscles that are voluntarily controlled?
  
• Question #0ec8d
  
• Question #07729
  
• How is the release of anterior pituitary hormones regulated?
  
• Does bone structure change with weight?
  
• Question #bce3f
  
• What are the bean shaped organs in the lower back called?
  
• How do you tell whether #f(x)=(6/5)^-x# is an exponential growth or decay?
  
• Question #b9e87
  
• Question #dc4c4
  
• How to determine height of the cylinder with maximum volume engraved in a sphere with radius #R#?
  
• Question #50c7a
  
• What effect does the compressed abdomen have on the movement of blood in the veins of the abdomen?
  
• What is a medical doctor who treats eye disorders called?
  
• Is the phase of the cardiac cycle that refers to contraction of the heart muscle systole, diastole, stroke volume, or none of these?
  
• Question #fcdaf
  
• Question #5060b
  
• Two corners of a triangle have angles of # (2 pi )/ 3 # and # ( pi ) / 4 #. If one side of the triangle has a length of # 4 #, what is the longest possible perimeter of the triangle?
  
• What is the area of the region in the first quadrant enclosed by the graphs of y = cosx, y= x, and the y -axis?
  
• How do you use sigma notation to write the sum for #1/(3(1))+1/(3(2))+1/(3(3))+...+1/(3(9))#?
  
• A balanced lever has two weights on it, the first with mass #5 kg # and the second with mass #3 kg#. If the first weight is # 6 m# from the fulcrum, how far is the second weight from the fulcrum?
  
• Point A is at #(3 ,9 )# and point B is at #(-2 ,3 )#. Point A is rotated #pi/2 # clockwise about the origin. What are the new coordinates of point A and by how much has the distance between points A and B changed?
  
• How do you solve #cosx=3cosx-2#?
  
• How can you identify halides?
  
• How do you simplify and write #(3.26times10^-6)(8.2times10^-6)# in standard form?
  
• What is the slope of the polar curve #f(theta) = theta^2 - sec^3theta+tantheta # at #theta = (3pi)/4#?
  
• A circle has a chord that goes from #( 3 pi)/2 # to #(7 pi) / 4 # radians on the circle. If the area of the circle is #99 pi #, what is the length of the chord?
  
• Is Williamson Ether Synthesis an SN1 or SN2 reaction?
  
• A boy throws a ball straight up with a speed of 21.5 m/s. The ball has a mass of 0.19 kg. How much gravitational potential energy will the ball have at the top of its flight?
  
• What is the antiderivative of #x(x+1)#?
  
• Question #0c3b6
  
• How much work would it take to push a # 16 kg # weight up a # 5 m # plane that is at an incline of # pi / 6 #?
  
• What is the energy of a photon emitted with a wavelength of 448 nm?
  
• How do you convert 0.23 into a fraction and percent?
  
• What is the domain and range of #f(x) =sqrt(-2x+5)#?
  
• How do you find the slope given x=-7?
  
• What is the total cost, including tax, of a $48 coat with 8% sales tax?
  
• Sarah bikes 15 miles in 70 minutes. Which is her average speed per minute?
  
• Question #9d849
  
• Where is urine stored until it drains from the body?
  
• What is the angle between #<-3,5,6> # and #<-1,9,-3>#?
  
• To what volume should 5.0 g of #KCl# be diluted in order to prepare 0.25 M solution?
  
• Why is the chair conformation of cyclohexane stable?
  
• What is the functional group of an aldehyde?
  
• If #16 L# of a gas at room temperature exerts a pressure of #6 kPa# on its container, what pressure will the gas exert if the container's volume changes to #2 L#?
  
• Question #ada66
  
• How do you plot #-2# on the complex plane and write it in polar form?
  
• How does the respiratory system work with the muscular system? Would it be possible for respiration to occur without muscle function?
  
• A molecular formula is #C_4H_8O_2#. It has a degree of unsaturation of 1. Also it has an #OH# group, #CH_3# (sp3) group, and #C=O# group. What functional groups can be present?
  
• Why is #"BrF"_4^(-)# square planar, whereas #"BF"_4^(-)# is tetrahedral?
  
• What is the cross product of #[2, 1, -4]# and #[4,3,6] #?
  
• Light from a star travels to Earth in a straight line at a constant speed of almost 300,000 km/s. What is the acceleration of the light?
  
• Question #2f31c
  
• How do dipoles form?
  
• How do you measure fluid flow?
  
• An airplane has a mass of 18,000 kilograms, and the total wing is 50 m2. during level flight, the pressure on the lower wing surface is 5.25 x 104 pa. what is the pressure on the upper wing surface?
  
• How does voltage affect a magnetic field?
  
• Why is capacitance important?
  
• How can torque be calculated?
  
• Why is angular momentum conserved but not linear?