Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 2, Problem 9RQ
Why do astronomers use the word on to describe angles on the sky rather than angles in the sky?
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Please answer the following question(s):
1. A tree, 20-feet tall, casts a 15-feet long shadow.
Shadow 15 feet
What is the angle of elevation of the sun in the sky?
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O
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Please answer the following question and choose the correct choice. i circled what i thought was correct but correct me if im wrong!
Suppose you need to find the height of a tall building. Standing 15 meters away from the base of the building, you aim a laser pointer at the closest part of the top of the building. You measure that the laser pointer is 7 degreestilted from pointing straight up. The laser pointer is held 2 meters above the ground. How tall is the building?
Chapter 2 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 2 - Why have astronomers added modern constellations...Ch. 2 - What is the difference between asterism d a...Ch. 2 - What characteristic do starts in a constellation...Ch. 2 - Do people from other cultures on Earth see the...Ch. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - What does the word apparent mean in apparent...Ch. 2 - In what ways is the celestial sphere a scientific...Ch. 2 - Why do astronomers use the word on to describe...Ch. 2 - Earth did not rotate, could you define the...
Ch. 2 - Where would you go on Earth if you wanted to be...Ch. 2 - Prob. 12RQCh. 2 - Explain h to make a simple astronomical...Ch. 2 - 14. Why does the number of circumpolar...Ch. 2 - How could you detect Earths precession t examining...Ch. 2 - How Do We know? How can a scientific model be...Ch. 2 - Using stars from one or more of the “official”...Ch. 2 - Prob. 2DQCh. 2 - Prob. 1PCh. 2 - If two stars differ by 8.6 magnitudes, what is...Ch. 2 - Prob. 3PCh. 2 - By what factor is sunlight brighter than...Ch. 2 - If you are at a latitude of 35° north of Earths...Ch. 2 - Prob. 1LTLCh. 2 - Prob. 2LTL
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- If the altitude of the Sun is measured to be 25, then what is the zenith angle? (15.4) (a) 45 (b) 55 (c) 65 (d) none of thesearrow_forwardThe secret recipe to the ever-popular veggie burgers in the college cafeteria is hidden in a drawer in the director’s office. Two students decide to break in to get their hands on it, but they want to do it a few hours before dawn on a night when there is no Moon, so they are less likely to be caught. What phases of the Moon would suit their plans?arrow_forwardIn countries at far northern latitudes, the winter months tend to be so cloudy that astronomical observations are nearly impossible. Why can’t good observations of the stars be made at those places during the summer months?arrow_forward
- How Do We know? Why must a scientific argument dealing with some aspect of nature include all of the evidence?arrow_forwardThe answer is rx=Aet, just stuck on how to get there. Thank youarrow_forwardSuppose you are standing such that a 32-foot tree is directly between you and the sun. If you are standing 175 feet away from the tree and the tree casts a 200-foot shadow, how tall could you be and still be completely in the shadow of the tree?arrow_forward
- Consider two points on the Earth’s surface that are separated by 1 arcsecond as seen from the center of the (assumed to be transparent) Earth. What is the physical distance between the two points?arrow_forwardA sun's rays are vertical at the point A on a planet. At the point B, which is 5574 miles due north of A, the angle of the sun measured to be 7.2° Use this information to approximate the radius and circumference of the planet.arrow_forwardIn astronomy what does it mean when asked about the altitude when it comes to the moon?arrow_forward
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