Business
Engineering
Math
Science
Social Scienceand (4,-7)points on the curve19 The mirror in Carl's flashlight is a paraboloid of revolution. If the mirror is 5 centimeters indiameter and 2,5 centimeters deep, where should the light bulb be placed so it is at the focusof the mirror?20. A parabolic Wi-Fi antenna is constructed by taking a flat sheet of metal and bending it into
How do you solve question 19?
Image Transcriptionclose
and (4,-7) points on the curve 19 The mirror in Carl's flashlight is a paraboloid of revolution. If the mirror is 5 centimeters in diameter and 2,5 centimeters deep, where should the light bulb be placed so it is at the focus of the mirror? 20. A parabolic Wi-Fi antenna is constructed by taking a flat sheet of metal and bending it into
Expert Answer
Given:
The mirror in carl’s flashlight is a paraboloid of revolution. If the mirror is 5 centimeter in diameter and 2.5 centimeters deep.
Image Transcriptionclose
diameter(d) 5cm d 5 —ст 2 2 radius(r)
Concept used:
The equation of parabola:
Image Transcriptionclose
x2=4ay Here 5 x radius cm 2 y mirror depth 2.5cm a focus of the mirror
Find the value of “a” b...
Image Transcriptionclose
x2=4ay 5 x =-,y = 2.5 =4xax2.5 2 25 - = 10a 4 25 a 4x 10 5 a =- 8 a =0.625cm
Math
Calculus
Other
Related Calculus Q&A
Q: how to solve problem in photo attached
A: Given:
Q: Find the solution of the differential equation dy/dx=x/y that satisfies the initial condition y(0)=−...
A: Given a differential equation and an initial condition,
Q: The acceleration function (in m/s2) and initial velocity for a particle moving along a line is given...
A: Given:
Q: One airplane is approaching an airport from the north at 203 km/hr. a second airplane approaches fro...
A: Let in the below figure P represents the airport, Q represents the southbound plane and R represents...
Q: Lea invests $8,333 in a savings account with a fixed annual interest rate of 8%. What will the accou...
A: According to questionInitial balance (p) = $8,333Interest rate (r) = 8%Time (t) = 12 yearIt is given...
Q: Suppose f(x, y) = ((xy2) / (x2 + y4)), for (x, y) ≠ (0, 0) ...
A: The given function is,
Q: Differentiate the following function. y = (7 + sin(x))/(7x+cos(x))
A: Click to see the answer
Q: A curve passes through the point (0,5) and has the property that the slope of the curve at every poi...
A: Slope of the curve is given by dy/dxdy/dx is twice the y coordinate. So, dy/dx=2y
Q: Find the given derivative by finding the first few derivatives and observing the pattern that occurs...
A: Find the given derivative by finding the first few derivatives and observing the pattern that occurs...
