Could i get help on this practice question? ICUE #3*示,沙The terminal side of an angle 0 in standard position intersects the unit circle atWhat is sin (0)?12/5A venomous snake did not bite the victimStretch the Yellow5/13Mrs. Gamma was gathering seeds in the atrium.Highlight Box overthe answer5/12A fallen object was not the cause of the injury12/13 Miss Beta was in the library reading Hamlet59°F Mostly clear

A unit circle is a circle of radius 1.

Answered: The terminal side of an angle 0 in…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section6.2: Trigonometric Functions Of Angles

Problem 28E

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Refraction When you stand in shallow water and look at an object below the surface of the water, the object will look farther away from you than it really is. This is because when light rays pass between air and water, the water refracts, or bends, the light rays. The index of refraction for water is 1.333. This is the ratio of the sine of 1 and the sine of 2 (see figure). (a) While standing in water that is 2 feet deep, you look at a rock at angle 1=60 (measured from a line perpendicular to the surface of the water). Find 2. (b) Find the distances x and y. (c) Find the distance d between where the rock is and where it appears to be. (d) What happens to d as you move closer to the rock? Explain.
Distance to the moon To find the distance to the sun as in Exercise 67, we needed to know the distance to the moon. Here is a way to estimate the distance When the moon is seen at its zenith at a point A on the earth, it is observed to be at the horizon from point B see the following figure. Points A and B are 6155 mi apart, and the radius of the earth is 3960 mi. a Find the angle in degree. b Estimate the distance from point A to the moon.
The designers of a water park have sketched a preliminary drawing of a new slide (see figure). (a) Find the height h of the slide. (b) Find the angle of depression from the top of the slide to the end of the slide at the ground in terms of the horizontal distance d a rider travels. (c) Safety restrictions require the angle of depression to be no less than 25 and no more than 30. Find an interval for how far a rider travels horizontally.
Length of a Guy Wire A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hills is 58. A guy wire is to be attached to the top of the tower and to the ground, 100 m downhill from the base of the tower. The angle in the figure is determined to be 12. Find the length of the cable required for the guy wire.
Soap Bubbles When two bubbles cling together in midair, their common surface is part of a sphere whose center D lies on the line passing through the centers of the bubbles see the figure. Also ACB and ACD each have measure 60. a Show that the radius r of the common face is given by r=aba-b Hint: Use the Law of Sines together with the fact that an angle and its supplement 180- have the same sign. b Find the radius of the common face if the radii of the bubbles are 4 cm and 3 cm. c What shape does the common face take if the two bubbles have equal radii?
Belts and Pulleys A thin belt of length L surrounds two pulleys of radii R and r, as shown in the figure (1). aShow that the angle in rad where the belt crosses itself satisfies the equation +2cot2=LR+r Hint: Express L in terms of R, r, and by adding up the lengths of the curved and straight parts of the belt. bSuppose that R=2.42ft, r=1.21ft, and L=27.78ft. Find by solving the equation in part a graphically. Express your answer both in radians and in degrees. Figure (1)

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The terminal side of an angle 0 in standard position intersects the unit circle at What is sin (6)?