All Questions
Tagged with applications trigonometry
26
questions
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What is the Equation for the Batista-Costa Minimal Surface?
The Batista-Costa surface is a triply periodic minimal surface. Three photos of part of the same surface are below:
where the first two were taken form the research paper: The New Boundaries of 3D-...
- 61
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In this function, will we include end points for decreasing interval?
Which of these statements is/are correct? The values are correct but am not sure about the interval. Are both correct, or is only one correct?
f(x)= sinx+cosx , 0 ≤ x ≤ 2π
f(x) is decreasing on ...
- 61
2
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2
answers
286
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How to make calculations for a complex 3-D conduit shape?
I'm an electrician running conduit horizontally along a wall at a height of 6 feet off the floor, when I come to a corner of the room. Normally, I would bend a 90-degree elbow and continue level along ...
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Problem from Plane Trigonometry (S.L. Loney) [duplicate]
Q. A square tower stands upon a horizontal plane. From a point in this plane, from which three of its upper corners are visible, their angular elevations are respectively are 45 ∘ ,60 ∘ , and 45 ∘. ...
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How do I find the necessary arc length if I want a certain height for an arch in building?
I am trying to build a hoop house/greenhouse. I will need to bend my poles so that there is enough height but still wide enough at the ground. I cannot figure out how to calculate it.
If I have a 14'...
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Finding the coefficient of friction when a body is being pulled at an angle
I'm answering the following question, but am getting a different answer to the one given in the answers pages:
A body of mass 100g rests on a rough horizontal surface and has a light string, inclined ...
- 1,205
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Purpose of rotation of a Function or Graph
You are able to rotate any function by an arbitrary angle around the origin using the formula,
$$y\cos\theta-x\sin\theta=f(x\cos\theta+y\sin\theta)$$You can also do similar rotations for polar graphs, ...
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Path of a simple turning car?
I am planning to build a small car that needs to travel through three specific points. Obviously, the car will need to travel in a partial circle to do this. In order to do this, I need to calculate ...
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Modeling Real World Situations / Trigonometric Functions
I got this question and it seemed to be tricky!
You are standing at a base of a Ferris Wheel which is 4 m above ground while your friend is riding. The Ferris Wheel is 8m in diameter. Describe how ...
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Deriving the formula for velocities of gravitational slingshots using trigonometry
I am working on this article on 'The Slingshot Effect' by R. C. Johnson (http://maths.dur.ac.uk/~dma0rcj/Psling/sling.pdf) and have become stumped on the derivation of the following equation:
$$v_{f}^...
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2
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Is it possible to find angles and length of woods?
With respect to the picture below, is it possible to find the angles and the length of the wooden bars, if we have no further information? Any hint or clue would be appreciated.
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trigonometry application question
I have a trigonometry question from my textbook that I am not sure how to approach.
View from a Satellite: The figures on the next page indicate
that the higher the orbit of a satellite, the more ...
2
votes
2
answers
960
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Is my solution to this trig application question right?
I saw a question in a book and sat down to solve it. It is based on the applications of trigonometry. I solved but the answer in the book differs slightly than mine. Here's the question and my ...
- 567
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How to find the system transfer function corresponding to a two dimensional matrix of optical transfer functions?
I would like to find the system transfer function corresponding to a two dimensional matrix of optical transfer function where:
Each of the 3 times 5 = 15 interferometers produce 15 sets of ...
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Is there anything significant about the cross-quarter days, in terms of a sinusoid?
As the Earth goes around the sun, the length of the day changes, and certain cultures have celebrations or observances centered around these changes, illustrated in this graph.
The red dots, the ...
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