Physics, 01.10.2019 03:10 alexjedington
Suppose you would like to estimate the elliptical orbit of a certain object around the origin. observations are made of both an angle and a distance. you collect five observations as follows where the first value is degrees (counterclockwise from the positive x-axis) and the second is in millions of miles: (23◦ , ◦ , ◦ , ◦ , ◦ , 137) the equation of an ellipse in polar coordinates can be given by the following for some a and b where θ is the angle (counterclockwise from the positive x-axis) and r is distance from the origin: ar2 cos2 θ + br2 sin2 θ = 1 (a) find the least-squares best-fit ellipse. (b) use this to predict the distance of the object when θ = 225◦ . (c) what is the furthest that the object ever gets from the origin? hint: use sin2 θ + cos2 θ = 1
Answers: 2
Physics, 22.06.2019 09:30
This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer
Answers: 2
Physics, 22.06.2019 11:30
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
Suppose you would like to estimate the elliptical orbit of a certain object around the origin. obser...
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