Question

A radio transmission tower is 245 feet tall. A guy wire is to be attached 6...

A radio transmission tower is 245 feet tall. A guy wire is to be attached 6 feet from the top and is to make an angle of 20 degrees with the ground. How many feet long should the guy wire be?

Math   Precalculus   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Let draw this condition, lebel the drawing and solve it:

from the drawing, we can understand that the length of the guy wire is the hypotenuse (AC) of this triangle ABC.

we will use trigonometric function cosec to find it:

  

so, the guy wire should be 254.338 ft long.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Two rocks are thrown simultaneously from the top of a very tall tower with identical speeds...
Two rocks are thrown simultaneously from the top of a very tall tower with identical speeds of v = 7.90 m/s, but in two different directions. (See figure.) One of them is thrown with an angle of 10.0 degrees below the horizontal, the other one at an angle of 50.0 degrees above the horizontal. How far will the rocks be from each other after 4.90 s? (Neglect air resistance and assume that the rocks will not hit the ground.)
An object is launched from the top of a building which is 50 m tall at...
An object is launched from the top of a building which is 50 m tall at a speed of 20 m/s at an angle of 30 degrees above the horizontal. a) What is the component of the projectile's initial velocity parallel to the ground? b) What is the component of the projectile's velocity parallel to the ground at 0.5 s? c) What is the speed (magnitude of velocity) of the projectile at 3 s? d) How long does it take...
Fred weighs 150 lbs and is 6 feet tall. His shoulders are exactly 5 feet off...
Fred weighs 150 lbs and is 6 feet tall. His shoulders are exactly 5 feet off the ground when standing (5 feet from his feet). In a pushup position with his arms/hands directly under his shoulders (so 5 feet from his toes), his body center of mass (CM) is located 3.5 feet from his toes. How much force is on his hands in this pushup position?
1. A telephone pole is 24 feet tall. Curtis, who is standing some distance away from...
1. A telephone pole is 24 feet tall. Curtis, who is standing some distance away from the telephone pole measures the angle of elevation to the top of the pole as 51.4 degrees. How far away from the base of the telephone pole is Curtis standing if Curtis's eye height is 5.2 feet? 2. You are on vacation sight-seeing at the coast and climb up to the top of a 50-meter lighthouse. You look down to see a boat and...
1. A street light is mounted on top of a 6-meter-tall pole.A man 2 m tall...
1. A street light is mounted on top of a 6-meter-tall pole.A man 2 m tall walks away from the pole with a speed of 1.5 m/s along a straight path.How fast is the tip of his shadow moving when he is 10 m from the pole ? 2. A cone-shaped paper drink is made to be made to hold 27 cm^3 of water. Find the height and radius of the cup that will use the smallest amount of paper....
1.Mark is 194 1. Mark is 5 feet, 6 inches tall. 2. Use the body mass...
1.Mark is 194 1. Mark is 5 feet, 6 inches tall. 2. Use the body mass unit standard 106 for the rst 5 feet. 3. Add 6 body mass units for each inch over 5 feet. 4. Multiply this total by 13 for sedentary lifestyle. 5. This is the total number of calories that Mark should consume for his height and weight. How many calories should Mark consume for his body mass index (BMI)? What is Mark’s BMI classi cation?...
In photography, the angle formed by the top of the subject, the camera, and bottom of...
In photography, the angle formed by the top of the subject, the camera, and bottom of the subject is called the viewing angle, as shown at the right. Natalie is taking a picture of Bigfoot #5 which is 15 feet 6 inches tall. She sets her camera on a tripod that is 5 feet above ground level. The vertical viewing angle of her camera is set for 90°. How far away from the truck should Natalie stand so that she...
The automatic flag raising system on a horizontal flagpole attached to the vertical outside wall of...
The automatic flag raising system on a horizontal flagpole attached to the vertical outside wall of a tall building has become stuck. The management of the building wants to send a person crawling out along the flagpole to fix the problem. Because of your physics knowledge, you have been asked to consult with a group to decide whether or not this is possible. You are all too aware that no one could survive the 250 foot fall from the flagpole...
1. A foot-long piece of wire is charged with -1 microcoulomb of charge. What is its...
1. A foot-long piece of wire is charged with -1 microcoulomb of charge. What is its linear charge density in coulombs per meter? How strong is the electric field 20 feet away from the midpoint of the wire? How many Newtons of force will it exert on a H+ ion located at that point? 2-A six-inch metal disk is charge with +1 microcoulomb of charge. What is its area charge density in Coulombs per square meter? How strong is the...
1. A truck with 24-in.-diameter wheels are traveling at 60 mi/h. Find the angular speed of...
1. A truck with 24-in.-diameter wheels are traveling at 60 mi/h. Find the angular speed of the wheels in rad/min:    rad/min How many revolutions per minute do the wheels make?    rpm 2. Without using a calculator, compute the sine and cosine of 300∘300∘ by using the reference angle. (Type sqrt(2) for √22 and sqrt(3) for √33.) What is the reference angle?  degrees. In what quadrant is this angle?  (answer 1, 2, 3, or 4) sin(300∘)=sin(300∘)=    cos(300∘)= 3. Find an angle θθ with 0∘<θ<360∘ that...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT