5

# Parabotic reflector(a) The focal length of the (finite) paraboloid in the figure is the distance $p$ between its vertex and focus. Express $p$ in terms of $r$ and $... ## Question ###### Parabotic reflector(a) The focal length of the (finite) paraboloid in the figure is the distance$p$between its vertex and focus. Express$p$in terms of$r$and$h$(b) A reflector is to be constructed with a focal length of 10 feet and a depth of 5 feet. Find the radius of the reflector.(FIGURE CAN NOT COPY) Parabotic reflector (a) The focal length of the (finite) paraboloid in the figure is the distance$p$between its vertex and focus. Express$p$in terms of$r$and$h$(b) A reflector is to be constructed with a focal length of 10 feet and a depth of 5 feet. Find the radius of the reflector. (FIGURE CAN NOT COPY) ## Answers #### Similar Solved Questions 5 answers ##### Let C be the positively oriented curve defined by the triangle with vertices at the points (0,0), (0,4) , and (3,0). Calculate the line integralEdc: where E = 144 < ~ry} ,ry >(a) by direct evaluation, and (b) by using the Green's theorem (You must fnd the numerical value). (Show all work): Let C be the positively oriented curve defined by the triangle with vertices at the points (0,0), (0,4) , and (3,0). Calculate the line integral Edc: where E = 144 < ~ry} ,ry > (a) by direct evaluation, and (b) by using the Green's theorem (You must fnd the numerical value). (Show all wor... 1 answers ##### (a) Find the Fourier coefficients corresponding to the function fo 55<1<0 f()= Period = 10 13 0 <.<5(b) Write the corresponding Fourier series. (a) Find the Fourier coefficients corresponding to the function fo 55<1<0 f()= Period = 10 13 0 <.<5 (b) Write the corresponding Fourier series.... 5 answers ##### 9(1 + 5 ln |r ) dr - 4rln |2| dy - 9(1 + 5 ln |r ) dr - 4rln |2| dy -... 5 answers ##### Suppose that 01,02,03,. Is a sequence with 01 = 3,02 =6, @n sQn-2 an-1 thereafter. There are various ways Of proving that @n is always divisible by 3. Suppose tharyou would Iike to do an inductive proof of this fact: Which is true?(It Is best to actually do the proof; and then analyze what you did ) Thls can be done with weak form of Inductlon: One can simply show that If it is true for n, then [email protected]= also true for n+1 b. Assuming the statement true for nand n-lis enough t0 show that it is true f Suppose that 01,02,03,. Is a sequence with 01 = 3,02 =6, @n sQn-2 an-1 thereafter. There are various ways Of proving that @n is always divisible by 3. Suppose tharyou would Iike to do an inductive proof of this fact: Which is true? (It Is best to actually do the proof; and then analyze what you did ... 5 answers ##### X6 ~IOxi +1 C: f(x) = (x7 +10) x6 ~IOxi +1 C: f(x) = (x7 +10)... 5 answers ##### 5/15 CorrectQuestion 6 of 15, Step of 1IncorreeX +X + Leon had test average of 89.2 last semester: His first four test grades were 86,95,94,and 90. Use the formula> = test:+X to find his score on the fifthAnswer How to enter your answerKeypac Keyboard Shortcu 5/15 Correct Question 6 of 15, Step of 1 Incorree X +X + Leon had test average of 89.2 last semester: His first four test grades were 86,95,94,and 90. Use the formula> = test: +X to find his score on the fifth Answer How to enter your answer Keypac Keyboard Shortcu... 5 answers ##### In$Y D S E, D=1.2 mathrm{~m}$and$d=0.25 mathrm{~cm}$. The slits are illuminated with coherent$600 mathrm{~nm}$-light. Calculate the distance$y$above the central maximum for which the average intensity on the screen is$75 %$of the maximum. In$Y D S E, D=1.2 mathrm{~m}$and$d=0.25 mathrm{~cm}$. The slits are illuminated with coherent$600 mathrm{~nm}$-light. Calculate the distance$y$above the central maximum for which the average intensity on the screen is$75 %$of the maximum.... 5 answers ##### Two chambers, one containing '$m_{1}^{prime} mathrm{g}$of a gas at '$P_{1}$' pressure and other containing '$m_{2} mathrm{~g}$of a gas at${ }^{prime} P_{2}{ }^{prime}$pressure, are put in communication with each other. If temperature remains constant, the common pressure reached will be :(a)$frac{P_{1} P_{2}left(m_{1}+m_{2}ight)}{P_{2} m_{1}+P_{1} m_{2}}$(b)$frac{m_{1} m_{2}left(P_{1}+P_{2}ight)}{left(P_{2} m_{1}+P_{1} m_{2}ight)}$(c)$frac{P_{1} P_{2} m_{1}}{P_{2}
Two chambers, one containing ' $m_{1}^{prime} mathrm{g}$ of a gas at ' $P_{1}$ ' pressure and other containing ' $m_{2} mathrm{~g}$ of a gas at ${ }^{prime} P_{2}{ }^{prime}$ pressure, are put in communication with each other. If temperature remains constant, the common pressure ...
##### Show by calculation that when the concentration of a weak acid decreases by a factor of 10 , its percent ionization increases by a factor of $10^{1 / 2}$.
Show by calculation that when the concentration of a weak acid decreases by a factor of 10 , its percent ionization increases by a factor of $10^{1 / 2}$....
##### Nine couples are randomly chosen from a large population: The data for number of minutes put into housework by wives and their respective husbands is given in the following table:TABLE [: Number of hours for housework Couple No_ Wife Husband 145 130160135155140160135150150160150145130155165150180We know that the number of minutes put in by men and women both follow normal distri- bution but with different means and standard deviationsBased on the above data, give an estimate of the average numbe
Nine couples are randomly chosen from a large population: The data for number of minutes put into housework by wives and their respective husbands is given in the following table: TABLE [: Number of hours for housework Couple No_ Wife Husband 145 130 160 135 155 140 160 135 150 150 160 150 145 130 1...
##### Find the gradient of the function. $$f(x, y, z)=1 /\left(x^{2}+y^{2}+z^{2}\right)$$
Find the gradient of the function. $$f(x, y, z)=1 /\left(x^{2}+y^{2}+z^{2}\right)$$...
##### (a)Use the discriminant to determine whether the graph of the equation is a parabola, an ellipse, or a hyperbola. (b) Use a rotation of axes to eliminate the $x y$ -term. (c) Sketch the graph. $$21 x^{2}+10 \sqrt{3} x y+31 y^{2}=144$$
(a)Use the discriminant to determine whether the graph of the equation is a parabola, an ellipse, or a hyperbola. (b) Use a rotation of axes to eliminate the $x y$ -term. (c) Sketch the graph. $$21 x^{2}+10 \sqrt{3} x y+31 y^{2}=144$$...
##### How can You synthesize the following compound using the Heck or Suzuki coupling reaction_ Write down the disconnection pattern and all the reaction steps from the staning: malerial clearly. Give briel explanation of your answer: (note: one compound for Heck coupling and one compound for Suzuki coupl ling)
How can You synthesize the following compound using the Heck or Suzuki coupling reaction_ Write down the disconnection pattern and all the reaction steps from the staning: malerial clearly. Give briel explanation of your answer: (note: one compound for Heck coupling and one compound for Suzuki coupl...
##### Prove: If a is an odd integer, then there exists an integer qsuch that a^2 = 8q + 1.
Prove: If a is an odd integer, then there exists an integer q such that a^2 = 8q + 1....
##### A kayak is at rest on the surface of the lake. The kayak has a mass of 7.3 kg and a volume of 29 liters. The lake has a density of 1 kg per liter: What is the buoyant force on the kayak in Newtons?
A kayak is at rest on the surface of the lake. The kayak has a mass of 7.3 kg and a volume of 29 liters. The lake has a density of 1 kg per liter: What is the buoyant force on the kayak in Newtons?...
##### Question 21 2 points) https:Ilwwwyoutube com/watchZv-HdjxMwPbuml of 10 m/sec to thc right and hits car B (6 kg) moving Car A (2 kg) moves with velocity elastic collision, both cars separate ad to the left at a velocity of 10 m/sec Aftecl opposite directions with equal veloicty: Velocity of cars is move in10 m/sec-10 m/sec2 m/sec5 m/sec
Question 21 2 points) https:Ilwwwyoutube com/watchZv-HdjxMwPbuml of 10 m/sec to thc right and hits car B (6 kg) moving Car A (2 kg) moves with velocity elastic collision, both cars separate ad to the left at a velocity of 10 m/sec Aftecl opposite directions with equal veloicty: Velocity of cars is m...