Question 13: This "backwards" motion of the planets in the sky can be explained if we take a closer look at the Heliocentric Model when an inner planet passes an outer planet (such as Earth passing Mars). Below, there is a model of the Earth and Mars' locations on their orbit from September to April. Trace a line through Earth and Mars' positions at corresponding months and continue it outward until just before the blue line. This represents Mars' location against the background stars as seen from Earth. Finally, connect the tips of the lines that you drew to show how Mars' location in Earth's sky appears to change when Earth passes it. Background Stars Mars Orbit Earth Orbit Apr Apr Mar Mar Jan Jan Dec Dec Nov Sep Nov Sep 5° 10° 15°

Q: A well-developed soil will have all layers O, A, E, B & C on the top of the parent material, fro...

A: Soils with a missing O layer, topsoil, and A horizon layer, and E layer exposed at the surface. 1. F...

Q: This exercise uses the elementary properties of the Richter Scale.One earthquake measures 5.5 on the...

A: The magnitude of the earthquake is measured by the Richter scale. Magnitude is defined as the size o...

Q: Without doing any calculations, how can you tell that the Van Buren ridge is spreading faster than t...

A:   The wide or broad magnetic strips (magnetic anomalies) suggest faster spreading rate and the narro...

Q: Once fusion stops in the core of a star, the core is primarily supported against gravitational colla...

A:   Nuclear fusion reaction produces energy that maintains the outward pressure in the core so that th...

Q: How would treating an area of a forest with a broad-spectrum fungicide affect carbon and nitrogen cy...

A: Fungicides are used to destroy or prevent the growth of fungi and their spores, which damage crops, ...

Q: For how long has the Pacific plate been moving in the same general direction (northwest)?

A: The Pacific Plate is moving northwest at a rate of 7-11 centimeters per year. As the plate continues...

Q: During summer in the Northern Hemisphere, the North Pole is illuminated by the Sun 24 hours per day....

A:   The North Polar Region receives sunlight at a low angle that results in sunlight spreading out ove...

Q: 1. The accompanying photo shows a footprint on the Moon left by an Apollo astronaut in material popu...

A: Soil is the end product which is formed millions of years after the weathering and transportation of...

Q: In the empty picture, redraw the blocks in the water in order from the smallest density one to the l...

A:   Blocks of different density float on water displacing an amount of water which is equal to their o...

Q: How does the lag time change as you get farther and farther from the epicenter of an earthquake? (Us...

A: The earthquake is a natural disaster that occurs due to the collision of the tectonic plates which p...

Q: Imagine you are looking at a major river that has 6-7 different major tributary systems coming off o...

A: Knick point is defined as the point at which the river experiences a sharp bend in a channel slope. ...

Q: Imagine that the Earth is orbiting a white dwarf star, whose surface temperature is 20000 K. How lar...

A: The luminosity (L) of a star is related to its temperature (T) and radius (R) as L = R2T4     

Q: You analyze a sample of a meteorite that landed on Earth and find that  7 8  of the uraniu...

A: The sample contains 0.125 or 1/8 grams of U-238 and 0.875 or 7/8 grams of Pb-206. Given that we know...

Q: What are the different types of space weather?

A: The term space weather was first introduced within the 1950s then came into existence within the 199...

Q: what is the total mass of a visible binary system if the average separation of the stars is 8.0 AU a...

A: According to Kepler's third law, the ratio of the square of the two planets' periods is equal to the...

Q: Equipment   Access to the Internet Introduction   The Earths crust is made up of rocks, which are ...

A:   Name             Color        Hardness based on Mohs scale Quartz            Colorle...

Q: A satellite is in circular orbit around Earth at an altitude of three Earth radii above the surface....

A: Orbital velocity (vorbit) = GMR  where, G is the gravitation constant = 6.6743 x 10-11 m3 kg-1 s-2 ...

Q: Sketch and label areas of erosion and deposition resulting from the groin (top), jetty (middle), and...

A:   Jetties are rock walls made to protect the entrance of a harbor from sediment deposition and storm...

Q: One planet is three times farther from the Sun than another. If the closer planet is located at 10AU...

A: If the closer planet is located at a distance of 10AU from the Sun, then the other planet, which is ...

Q: Why do some pulsars have a faster rotation rate?

A:   Pulsars spin very rapidly due to the conservation of angular momentum from the original star which...

Q: Need help with number 2, 3, 4, 5, and 6

A: The ecosystem and environment are composed of varieties of life forms or species, which is known as ...

Q: Tabulate the calculated values of absorbance for each of the standard Cu2+ solutions along with the ...

A: The relationship between absorbance, concentration, and pathlength, is described by the Beer-Lambert...

Q: If a star has a radial velocity of 25 km/sec and a transverse velocity of 60 km/sec, what is the sta...

A: Radial velocity is defined as the star's velocity along the optic axis of the observer. Transverse v...

Q: Which glacier was "the biggest loser" from 2009 to 2010? Explain how you know it and what is the sou...

A: Jakobshavn Glacier, located on the southwest coast of Greenland experienced the most loss in the amo...

Q: (Not a writing assignment, just a question) Why does the operation of a solid waste landfill create ...

A:   Most of our waste is toxic. Many of the solid waste contains dangerous substances such as volatile...

Q: What is the Alvarez Asteroid Theory

A: It is always a concern of study about the sudden demise of Dinosaurs. There are many schools of thou...

Q: Counting atoms Assessment Ag2S How many total atoms are there in the formula

A:   In the compound Silver sulfide Ag2S, there is Ag and S element. The element Silver, Ag has subscri...

Q: What is the average speed, in centimeters/year has the pacific plate been moving for the past 5 mill...

A:   The location of hotspot remains fixed relative to plate motion and also Hawaiian big island is loc...

Q: There are about 32,000 single family homes in Peterborough. If we assumed Professor Hill’s was about...

A: Scenario A: Total Consumption of Peterborough before retrofitting Total Consumption = Number of Hous...

Q: In the empty picture, redraw the blocks in the water in order from the smallest density one to the l...

A: Blocks of different density float on water displacing an amount of water which is equal to their own...

Q: Why is it difficult to give exact dimensions for the Galaxy's visible halo?

A:   The galaxy in visible light is strongly affected by interstellar dust and gas in a way that it is ...

Q: RainbowCauses of formation؟How to configure؟

A: Rainbow is often seen after rain. It is formed when the sunlight hits the tiny water droplets presen...

Q: rocks form where the remains of plants and animals are deposited in layers rocks form when minerals ...

A: Organic sedimentary rocks form where the remains of plants and animals are deposited in layers. Exam...

Q: Suppose the following atmosp temperature Altitude (m) Temperature (°C) 20 100 18 200 16 300 15 16 40...

A: Plot the two curves: temperature-altitude the dry adiabatic lapse rate (DALR)  The DALR is the rat...