Do the same for a radar signal to pluto and back

Reference no: EM13795639

Question 1: What observations can you make about the values in this table? Particularly, do you see any pattern between the distance (in AU) and the amount of light that reaches the planet? Do you see any pattern between the distance (in AU) and the light travel time? (For this last question, it's easiest to notice the pattern if you look at the planets further out than the Earth and compare the light travel time for those planets compared to Earth's light travel time.)

Planet	Distance from Sun	Amount of Sunlight	Light Travel Time
	(AU)	(Earth = 1 unit)	From Sun (minutes)

Mercury	0.4	6.25	3.8

Venus	.07	2	5.8

Earth	1	1	8.3

Mars	1.5	1/2	12.45

Jupiter	5	1/25	41.5

Saturn	10	1/100	83

Uranus	20	1/400	166

Neptune	30	1/900	249
Pluto	40	1/1600	332

Question 2: You have likely heard of radar. What are 2 or 3 applications of radar that you have heard of in your life? What can radar tell an observer about some object, whether it is an airplane, a car, a cloud?

Question 3: Do you think radar could be used to find the distance to a neighboring planet? Why or why not? Do you think radar could be used to find the distance to neighboring stars? Why or why not?

Question 4: Assuming the planets are all lined up on the same side of the Sun as the Earth, use the time data from Table 1 and do the following:

Calculate the time it would take for a radar signal to travel from Earth to Mars. ______________ minutes

Calculate the time it would take for that radar signal to travel back to Earth. _______________ minutes

Calculate the total radar signal travel time from Earth to Mars and back._______________ minutes

Do the same for a radar signal to Pluto and back. _________________ minutes = ____________ hours

Question 5: What are some limitations that you can foresee when trying to use the radar method to find the distance to distant objects - planets or stars? (You may have, in part, answered this question earlier.)

Question 6: If the object is further away, is the angle larger or smaller? Make a sketch, similar to that shown but with the object further away to show how the angle changes.

Question 7: The distance from the Earth to the Moon is 384,400 km; the diameter of the Moon is 3474 km. Calculate the angular size of the full Moon as we see it in the sky. How does your answer compare to the value given in the text and/or lecture notes. (Look it up if you need to.)

Question 8: A U.S. quarter (coin) is about 1 inch in diameter. If you were to hold it up so that it was covering the full Moon, how far (in inches) must you hold it away from your face so that it would pretty much cover the Moon exactly?(That is, at what distance does a quarter have an angular size equal to the Moon's.) Is your arm long enough to do this?(If you happen to see a full Moon sometime and have a quarter in your hand, try this out.)

Question 9: Find the definition of stellar parallax in the text or somewhere. Summarize here. And then, explain briefly how stellar parallax is similar to the simple task you just performed.

Question 10: Why do the distant stars seem to (almost) never change their positions relative to us?

Question 11: When observing your finger's "motion" when you open and close your two different eyes, what characteristic or aspect of that "motion" would you measure that could give you information about how close or far your finger is from your eyes?

Reference no: EM13795639

Questions Cloud

Principle theory of management : Principle theory of management

Markets exist to facilitate exchange between people : Two goods are substitutes if an increase in the price of one good leads to an increase in demand for the other. The market system works by getting each person, motivated by his or her own self-interest, to produce products for other people. Markets e..

Boat is a product of the baldwin company : Boat is a product of the Baldwin company which is primarily in the Nano segment, but is also sold in another segment. Baldwin starts to create their sales forecast by assuming all policies (R&D, Marketing, and Production) for all competitors are equa..

Graph the demand-marginal revenue-marginal cost : Graph the Demand, Marginal Revenue, Marginal Cost, and Average Total Cost curves. What are the equilibrium price and quantity for this monopolist if it charges a single price to everyone? How much profit does the firm make? Show on the graph whether ..

Do the same for a radar signal to pluto and back : Calculate the time it would take for that radar signal to travel back to Earth. Calculate the total radar signal travel time from Earth to Mars and back. Do the same for a radar signal to Pluto and back

Free trade will affect countrys employment : Free trade will affect a country's employment in different industries. Banks can obtain funds to make loans by borrowing reserves from other banks through the federal funds market. When one individual writes a check to another individual the money su..

Designing health promotion programs. : Why it is important to consider multiple intelligences when designing health promotion programs?

Contingency approach to representative bureaucracy : Review the article "A Contingency Approach to Representative Bureaucracy: Power, Equal Opportunities and Diversity" in this week's Learning Resources. Think about the link between diversity and representative bureaucracy in the workplace.

Cause the equilibrium price and quantity to rise : Unemployment occurs even during periods when the economy is growing. An increase in demand will cause the equilibrium price and quantity to rise, ceteris paribus. An increase in wages will shift the supply curve up and to the left. GDP measures under..

User Account

All Pages