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Choose the best answer to each of the following. Explain your reasoning.
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Pearson eText The Cosmic Perspective Fundamentals -- Instant Access (Pearson+)
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- Read the following items carefully. State your assumptions if any. Show your COMPLETE solution and BOX your final answers. Keep your answers and solutions in 4 decimal places. > Initially, 100 milligrams of a new radioactive substance Tobium, named after its discoverer Sir Tobs, was discovered and collected from one of the moons of Jupiter. After 6 hours from collection, the mass decreased by 4%, If the rate of decay IS proportional to the amount of the substance present at time t, find the amount of Tobium remaining after 48 hours.arrow_forwardFiguring for Yourself. Always show your work.27. Calculate the wind speed at the edge of Neptune's Great Dark Spot, which was 10,000 kmin diameter and rotated in 17 days. (Hint: recall a circle circumference=2 x pie x radius).arrow_forwardChoose the best answer to each of the following. Explain your reasoning. Which of the following is not true during Northern Hemisphere summer? (a) Sunlight strikes the ground at a steeper angle in the Northern Hemisphere that it does in the Southern Hemisphere. (b) The Sun follows a longer and higher path through the Northern Hemisphere sky than it does through the Southern Hemisphere sky. (c) Noontime shadows are longer in the Northern Hemisphere that in the Southern Hemisphere.arrow_forward
- PROBLEM SOLVING: Express your answer to the fourth decimal places. Show complete solution. Box your final answer. 1. A wooden object found in an Indian burial ground and subjected to radiocarbon dating. The decay rate associated with C-14 is 10 disintegrations per minute per gram carbon. What is the gge of the obiect?arrow_forwardThe plot below shows ray paths and arrival times for P-wave seismic signalsrecorded at a geophone located 60m from a source.a. Using the plots below, what can you deduce about the relationshipbetween the velocities of each of the layers?b. Imagine you can extend the spread of geophone to some large offset. From your answer above, would you expect to see the refracted wave alonglayers as first arrival?arrow_forwardDirections: Read and understand the following questions below. Shade the circle that corresponds to the correct answer. 1. Which type of seismic wave travels the slowest? OP waves OS waves OSurface waves 2. Which type of seismic wave causes the most damage? OSurface vwaves OS waves OP waves 3. What do seismic P waves travel through? OLiquids only OSolids only OSolids and liquids 4. What causes seismic waves to travel in curved paths? OReflection ORefraction ODiffraction 5. What evidence do we have that the Earth has a liquid core? ORefraction of seismic waves OThe time lag between P and S waves The S wave shadow zonearrow_forward
- Assume that there are a million asteroids 1 kilometer across or larger in the asteroid belt. For both questions, assume that all the asteroids are perfectly spherical. I a. If a million asteroids 1-kilometer across were all combined into one spherical object, how big would it be across? b. How many 1-kilometer diameter asteroids would it take to make an object as large as the Earth?arrow_forwardCarbon-14 is constantly being produced in the upper atmosphere, and the amount is in equilibrium. As long as an organism is alive, it keeps its carbon isotopes in balance with the atmosphere, but at soon as it dies, it stops taking up new 14C, and so the geologic clock starts. You found a shell buried in sedimentary layers, which has 6% of its original 14C left. Determine the age of the shell. Show your work.arrow_forwardVenus is observed when it is at Greatest Eastern Elongation, and the angle between Venus and the Sun on the sky is determined to be 46.3 degrees. A radar beam is transmitted towards Venus when it is at inferior conjunction, and the reflected signal is detected on Earth after 277 seconds. Determine the Sun-Venus distance and express your answers in metres. Show all of your working. [Expect to use no more than one A4 page for this subquestion.]arrow_forward
- Using Appendix G, complete the following table that describes the characteristics of the Galilean moons of Jupiter, starting from Jupiter and moving outward in distance. Table A This system has often been described as a mini solar system. Why might this be so? If Jupiter were to represent the Sun and the Galilean moons represented planets, which moons could be considered more terrestrial in nature and which ones more like gas/ice giants? Why? (Hint: Use the values in your table to help explain your categorization.)arrow_forwardvork Assignment Be sure to answer all parts. A small hole in the wing of a space shuttle requires a 16.0 cm² patch. (a) What is the patch's area in square kilometers (km²)? Enter your answer in scientific notation. x 10 km2 of the patch to the nearest cent? (b) If the patching material costs NASA $4.45/in², what is thearrow_forwardConclusion(s) and evidence from investigation: 1. What is the relationship between mass and gravity? 2. How is mass and gravity relevant to the formation of the solar system? (think about the sun) 3. Describe the shape of the solar system. 4. Describe the composition (what it is made of) of the solar system. 5. Describe the revolution (orbit) of the solar system. 6. Identify an anomaly (doesn't match the rest) in the data and propose an explanation for it. 7. What were some patterns you found in the columns? List at least 2. 8. Which is the best evidence that the solar system was created from accretion? Explain why. (There may be more than 1!)arrow_forward