Foundations of Astronomy
13th Edition
ISBN: 9781305079151
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Textbook Question
Chapter 23, Problem 4P
What is the escape velocity from the surface of Ganymede? Ganymede’s mass is 1.5 × 1023 kg and its radius is 2.6 × 103 km. (Hint: Use the formula for escape velocity, Eq. 5-1b. The formula requires input quantities in kg and m.)
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Please help me on the following question (Please refer to image below)An Olympic lifter (m = 103kg) is holding a lift with a mass of 350 kg. The barexerts a purely vertical force that is equally distributed between both hands. Each arm has amass of 9 kg, are 0.8m long and form a 40° angle with the horizontal. The CoM for each armis 0.5 m from hand. Assuming the lifter is facing us in the diagram below, his right deltoidinserts 14cm from the shoulder at an angle of 13° counter-clockwise from the humerus.A) You are interested in calculating the force in the right deltoid. Draw a free body diagramof the right arm including the external forces, joint reaction forces, a coordinate system andstate your assumptions.B) Find the force exerted by the right deltoidC) Find the shoulder joint contact force. Report your answer using the magnitude and directionof the shoulder force vector.
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Question 6:
Chlorine is widely used to purify municipal water supplies and to treat swimming pool
waters. Suppose that the volume of a particular sample of Cl₂ gas is 8.70 L at 895 torr
and 24°C.
(a) How many grams of Cl₂ are in the sample?
⚫ Atomic mass of CI = 35.453 g/mol
• Molar mass of Cl₂ = 2 x 35.453 = 70.906 g/mol
Solution:
Use the Ideal Gas Law:
Step 1: Convert Given Values
• Pressure: P = 895 torr → atm
PV=
= nRT
1
P = 895 ×
= 1.1789 atm
760
•
Temperature: Convert to Kelvin:
T24273.15 = 297.15 K
• Gas constant: R = 0.0821 L atm/mol. K
Volume: V = 8.70 L
Step 2: Solve for n
.
PV
n =
RT
n =
(1.1789)(8.70)
(0.0821)(297.15)
10.25
n =
= 0.420 mol
24.405
Step 3: Calculate Mass of Cl₂
Final Answer: 29.78 g of Cl₂.
mass nx M
mass=
(0.420)(70.906)
mass=
29.78 g
Chapter 23 Solutions
Foundations of Astronomy
Ch. 23 - Describe four differences between the Jovian...Ch. 23 - Why is Jupiter more oblate than Earth? Just...Ch. 23 - Which molecules and atoms are Jupiter and Saturn...Ch. 23 - What determines which cloud layers are found at...Ch. 23 - Describe a hypothesis explaining why Jupiter emits...Ch. 23 - How does beltzone circulation transport energyby...Ch. 23 - Why are belts and zones wrapped entirely around...Ch. 23 - What ingredients are needed to power a dynamo...Ch. 23 - Why are magnetic phenomena such as extensive...Ch. 23 - How do the interiors of Jupiter and Saturn differ?...
Ch. 23 - Which planet formation step did the Jovian planets...Ch. 23 - Why is Jupiters moon lo called a regular...Ch. 23 - Why is Saturns moon Phoebe called an irregular...Ch. 23 - If Jupiter had a satellite the size of our own...Ch. 23 - The density of Earths Moon is 3.3 g/cm3. Which of...Ch. 23 - Ganymede was once completely molten on the inside....Ch. 23 - Describe evidence of tectonic features seen on...Ch. 23 - Why are no craters seen on lo and few seen on...Ch. 23 - Why should you expect lo to suffer more impacts...Ch. 23 - How can you be certain that Jupiters rings do not...Ch. 23 - Why are the belts and zones in the atmosphere of...Ch. 23 - Describe the composition of Saturn from its center...Ch. 23 - If Saturn had no moons, do you think it would have...Ch. 23 - How can Titan keep an atmosphere when Titan is...Ch. 23 - What should the interior composition of Titan be...Ch. 23 - If you were able to stand on the surface of Titan...Ch. 23 - Does Titan experience volcanism today? Impact...Ch. 23 - Describe the types of geological activity observed...Ch. 23 - More Jovian moons are geologically active than...Ch. 23 - Prob. 30RQCh. 23 - If you piloted a spacecraft to visit Saturns moons...Ch. 23 - The ring systems around Jupiter and Saturn lie...Ch. 23 - Saturns rings are primordial, meaning that they...Ch. 23 - What is understood to be the cause of ripples in...Ch. 23 - What is understood to be the cause of gaps in ring...Ch. 23 - Why would you expect research in archaeology to be...Ch. 23 - Prob. 1DQCh. 23 - Prob. 2DQCh. 23 - Prob. 3DQCh. 23 - Prob. 4DQCh. 23 - What is the angular diameter of Jupiter as seen...Ch. 23 - Prob. 2PCh. 23 - What is the angular diameter of Jupiter as seen...Ch. 23 - What is the escape velocity from the surface of...Ch. 23 - Calculate the mass of Callisto using a value for...Ch. 23 - Prob. 6PCh. 23 - Calculate the radius of Jupiters Roche limit for a...Ch. 23 - How long does the eastward wind at the equator of...Ch. 23 - What is the orbital velocity and period of a ring...Ch. 23 - If you were to record the spectrum of Saturn as...Ch. 23 - Prob. 11PCh. 23 - Look at Figure 22-4b. Compare the visual and UV...Ch. 23 - Prob. 2LTLCh. 23 - Prob. 3LTLCh. 23 - The Cassini spacecraft recorded the image shown...
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