Homework Answers
1) (B) Calculate the distance from the Earth to the moon.
2) (C) the distance from the Earth to the Sun.
3) (D) less than 90 degrees by an amount that was easy for him to measure.
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From the way that lunar eclipses happen, the Ancient Greeks were able to 0 A conclude...
it has been said that the "facts" of science are actually "revisable facts." When do these...
it has been said that the "facts" of science are actually "revisable facts." When do these revisable facts" get revised? O A A scientific professional society votes them out. OB More elegant "revisable facts" are discovered O CThey conflict with reproducible observations O D They are on the losing side of a debate. E They are successfully challenged in court. Which of the following computer programs is the most likely to be considered a scientific model: O A An animated...
2. Aristarchus of Samos (310-230 BC) was a Greek mathematician and astronomer who first proposed a...
2. Aristarchus of Samos (310-230 BC) was a Greek mathematician and astronomer who first proposed a heliocentric model for our solar system, thousands of years before Copernicus. His ideas were based on his calculations of the sires of the Earth, Moon, and Sun. The approach below is a simplified version of his approach that includes knowledge of the work of contemporaries, such as the calculation of the Earth's radius by Eratosthenes of Cyrene (276-194 BC). (Note: We showed in class...
Question 28 1 pts The greatest inaccuracy in Copernicus' model of the solar system was that...
Question 28 1 pts The greatest inaccuracy in Copernicus' model of the solar system was that the planets O traveled on epicycles whose centers followed orbits around the Earth O travel in circular orbits with uniform motion. traveled in elliptical orbits. O were allowed to travel backwards in their orbits Question 29 1 pts Kepler's third law can be expressed mathematically as: O P-A P3-A2 О p2.A3 Question 30 1 pts Johannes Kepler obtained accurate data on the positions of...
. On your way to your first stop, the Moon, you do the standard tourist things:...
.
On your way to your first stop, the Moon, you do the standard
tourist things: First, you check out your what your weight will be
on the Moon. Please don’t look up lunar gravity. Calculate it
instead from the values given above. Show all formulas used and
calculations below.
Weight on Earth (lbs.) : 600N or 132lb
Weight on Moon (lbs.):
Everyone loves to jump on the moon! So how high will you be able
to jump? try jumping...
Did Eratosthenes really do the measurement? Because the Great Library at Alexandria was an amazing firetrap...
Did Eratosthenes really do the measurement? Because the Great Library at Alexandria was an amazing firetrap (wood shelves, papyrus scrolls, etc.), it burned several times and many of the early Greek manuscripts were lost. All of the descriptions that we have of Eratosthenes are second-hand in what were essentially astronomy textbooks. As we will se later, the ancient Greeks often did thought experiments but did not always do the actual experiments. My opinion is that Eratosthenes las the right man...
b. Measure and record the smallest angle i. An object K and an observer at X...
b. Measure and record the smallest angle i. An object K and an observer at X are formed between lines C and D at E. shown below. Draw a line indicating a line of sight to an object L that lies 35° below object K on the plane of the paper as viewed by the observer at X. c. Based upon the diagram, what is the angle formed at point G between points F and H? j. Below is shown...
Problem 1. Assume that Mars formed from chemical elements that were able to freeze out of...
Problem 1. Assume that Mars formed from chemical elements that were able to freeze out of the cloud of gas around the forming Sun, and that the relative abundances in this frozen-out material was the same as that of solar atmosphere (see belowTable) for Mg, Si, Fe, Na, Al, and Ca. Assume that all elements except perhaps Fe are fully oxidized when they freeze out (as MgO, SiO2, FeO, Na20, Al20s, and CaO). Calculate and tabulate the fractions of the...
Learning Objectives As part of this activity, you want to be able to: Experimentally verify that...
Learning Objectives As part of this activity, you want to be able to: Experimentally verify that the strength of the Coulomb force between two charged bodies varies inversely with the square of the separation distance between them. Experimentally verify that the strength of the Coulomb force between two charged bodies varies with the product of the charges. 1.1 Pre-lab Gravitational force Last semester you may have encountered Newton's universal law of gravitation. This law, which describes the force between two...
Partner: Date Name 11 Snell's Law Introduction When light passes from one material to another it ...
Partner: Date Name 11 Snell's Law Introduction When light passes from one material to another it is always bent away from its original path. This process is known as refraction and the change in direction depends on the change in optical density (or refractive index) of the two materials. A larger change in refractive index results in a larger change in angle between incoming and outgoing light beams. A light beam bends closer to the normal in the material with...
please help Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis...
please help
Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
it has been said that the "facts" of science are actually "revisable facts." When do these revisable facts" get revised? O A A scientific professional society votes them out. OB More elegant "revisable facts" are discovered O CThey conflict with reproducible observations O D They are on the losing side of a debate. E They are successfully challenged in court. Which of the following computer programs is the most likely to be considered a scientific model: O A An animated...
2. Aristarchus of Samos (310-230 BC) was a Greek mathematician and astronomer who first proposed a heliocentric model for our solar system, thousands of years before Copernicus. His ideas were based on his calculations of the sires of the Earth, Moon, and Sun. The approach below is a simplified version of his approach that includes knowledge of the work of contemporaries, such as the calculation of the Earth's radius by Eratosthenes of Cyrene (276-194 BC). (Note: We showed in class...
Question 28 1 pts The greatest inaccuracy in Copernicus' model of the solar system was that the planets O traveled on epicycles whose centers followed orbits around the Earth O travel in circular orbits with uniform motion. traveled in elliptical orbits. O were allowed to travel backwards in their orbits Question 29 1 pts Kepler's third law can be expressed mathematically as: O P-A P3-A2 О p2.A3 Question 30 1 pts Johannes Kepler obtained accurate data on the positions of...
.
On your way to your first stop, the Moon, you do the standard
tourist things: First, you check out your what your weight will be
on the Moon. Please don’t look up lunar gravity. Calculate it
instead from the values given above. Show all formulas used and
calculations below.
Weight on Earth (lbs.) : 600N or 132lb
Weight on Moon (lbs.):
Everyone loves to jump on the moon! So how high will you be able
to jump? try jumping...
Did Eratosthenes really do the measurement? Because the Great Library at Alexandria was an amazing firetrap (wood shelves, papyrus scrolls, etc.), it burned several times and many of the early Greek manuscripts were lost. All of the descriptions that we have of Eratosthenes are second-hand in what were essentially astronomy textbooks. As we will se later, the ancient Greeks often did thought experiments but did not always do the actual experiments. My opinion is that Eratosthenes las the right man...
b. Measure and record the smallest angle i. An object K and an observer at X are formed between lines C and D at E. shown below. Draw a line indicating a line of sight to an object L that lies 35° below object K on the plane of the paper as viewed by the observer at X. c. Based upon the diagram, what is the angle formed at point G between points F and H? j. Below is shown...
Problem 1. Assume that Mars formed from chemical elements that were able to freeze out of the cloud of gas around the forming Sun, and that the relative abundances in this frozen-out material was the same as that of solar atmosphere (see belowTable) for Mg, Si, Fe, Na, Al, and Ca. Assume that all elements except perhaps Fe are fully oxidized when they freeze out (as MgO, SiO2, FeO, Na20, Al20s, and CaO). Calculate and tabulate the fractions of the...
Learning Objectives As part of this activity, you want to be able to: Experimentally verify that the strength of the Coulomb force between two charged bodies varies inversely with the square of the separation distance between them. Experimentally verify that the strength of the Coulomb force between two charged bodies varies with the product of the charges. 1.1 Pre-lab Gravitational force Last semester you may have encountered Newton's universal law of gravitation. This law, which describes the force between two...
Partner: Date Name 11 Snell's Law Introduction When light passes from one material to another it is always bent away from its original path. This process is known as refraction and the change in direction depends on the change in optical density (or refractive index) of the two materials. A larger change in refractive index results in a larger change in angle between incoming and outgoing light beams. A light beam bends closer to the normal in the material with...
please help
Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
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