The Moon is Earth's only natural satellite. It has a mass of 7.34 × 1022 kg and isroughly spherical with a radius of 1.74 × 106 m.Multiple Choice Questions?7) The average surface temperature of the moon is 26 K. Assuming a uniformtemperature and a uniform emissivity of 0.9 (these are not good assumptions),estimate the total rate of heat radiated from the Moon. For this question, youmay assume the Moon is spherical and its surface area is given by A = 4лR².a) 4.7 x 10" Wb) 5.5 x 10" Wc) 6.9 × 10" Wd) 8.1 x 10" We)8.9 x 10" Wf)1.6 x 1016 W8) NASA decides to place an orbiter at an elevation of 50 km above the lunar surface. What speed is requiredfor this orbiter to maintain a circular orbit around the Moon?a) 1471 m/sb) 1543 m/sShort Answer Questionc)1654 m/sd)2254 m/se)9895 m/sf)312,900 m/sSuppose NASA decides to crash the orbiter into the Moon's surface. Assume the orbiter begins 50 km above thelunar surface with an initial speed given by your answer to Question 8; however for this question, its initialvelocity is directed towards the center of the Moon. With what speed will the orbiter strike the lunar surface?

7)A=4πr2e=0.9Let moon radius r=1737.4⋅103tQ=eσAT4tQ=σ(0.9)(4π⋅(1737.4⋅103)2)(26)4tQ=8.84⋅1011≈e)…

Answered: The Moon is Earth's only natural…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Required information In an emergency, it is sometimes the practice of medical professionals to immerse a patient who suffers from heat stroke in an ice bath, a mixture of ice and water in equilibrium at 0°C, in order to reduce her body temperature. The average specific heat of human tissue at 20.0°C is 3.50 x 103 J/kg-K. The latent heat of fusion for water is 333.7 x 10 J/kg. A(n) 85.1-kg patient whose body temperature is 43.5°C was reduced to 37.0°C. If she is placed in a bath containing 5.70 kg of ice, what will be the ice remaining in the bath when her body temperature is 37.O°C? kg
1
4) A ground source heat pump heats a building by extracting heat from the ground and pumping it into the building. Define: Qc = heat extracted from the ground, Qn= heat pumped into the building, W = electric energy used by the heat pump, Tc= temperature of the ground, T = temperature of building (Qc, Qn, and W are positive by definition). Assume Tr > Tc. a) Draw a diagram showing energy flow in and out of the heat pump. b) Write a general expression for the change AS in the entropy of the "universe", that is the heat pump plus the cold and hot reservoirs, in terms of the quantities defined above. Now assume ideal (reversible) operation, and take Te= 10 °C and Tp= 20 °C. What is the coefficient of performance (ČOP) of the heat pump? By what factor would this change if we had Tc = 0 °C instead?
51 A sphere of radius 0.500 m, temperature 27.0°C, and emis- sivity 0.850 is located in an environment of temperature 77.0°C. At what rate does the sphere (a) emit and (b) absorb thermal radia- tion? (c) What is the sphere's net rate of energy exchange?
Determine the energy transferred by conduction in 16 minutes, between the two faces of a concrete wall with an area of 24.2 m ^ 2 and a thickness of 29.2 cm, if inside the temperature is 16.1 ° C, and outside the temperature is 31.4 ° C.
Q2/ A 4-m-internal-diameter spherical tank made of 1.75-em-thick stainless steel (k 15 W/m °C) is used to store iced water at 0°C. The tank is located in a room whose temperature is 35°C. The walls of the room are also at 35°C. The outer surface of the tank is black, and heat transfer between the outer surface of the tank and the surroundings is by natural convection and radiation. The convection heat transfer coefficients at the inner and the outer surfaces of the tank are 80 W/m2 °C and 10 W/m2 °C, respectively. Determine (a) the rate of heat transfer to the iced water in the tank and (b) the amount of ice at 0°C that melts during a 1-h period. The heat of fusion of water at atmospheric pressure is hif 334 kJ/kg.
*38. GO At the bottom of an old mercury-in-glass thermometer is a 45-mm reservoir filled with mercury. When the thermometer was placed under your tongue, the warmed mercury would expand into a very narrow cylindrical channel, called a capillary, whose radius was 1.7 × 10-² mm. Marks were placed along the capillary that indicated the temperature. Ignore the thermal expansion of the glass and determine how far (in mm) the mercury would expand into the capillary when the temperature changed by 1.0 C°.
Week 4 #15 A lizard of mass 5.60 g is warming itself in the bright sunlight. It casts a shadow of 1.60 cm2 on a piece of paper held perpendicularly to the Sun’s rays. The intensity of sunlight at the top of the Earth's atmosphere is 1.40 × 103 W/m2, but only half of this energy penetrates the atmosphere and is absorbed by the lizard. The lizard has a specific heat of 4.20 J/(g·°C). Assuming that there is no heat loss by the lizard (to simplify), how long must the lizard lie in the Sun in order to raise its temperature by 1.70°C? _____min
2. A spherical medium of radius R, and constant thermal conductivity k, generates heat at the rate 4 = 4. (1- where ġ, is the rate of internal energy generation per unit volume at the center and is a given constant. This medium is surrounded by a spherical shell of cladding with a thickness of R2 - R1 and a constant thermal conductivity of k2. The contact resistance per area between the the cladding and the spherical medium can be taken as Re. The fluid outside the cladding is at T, with a constant heat transfer coefficient h. a) Determine the outer surface temperature of the cladding. b) Determine the temperatures of the sphere and the cladding at the interface between the two. c) Determine the temperature distribution in the sphere and the cladding.
How do I calculate L?
1. An expensive vacuum system can achieve a pressure as low as 1.83 ✕ 10−7 N/m2 at 26°C. How many atoms are there in a cubic centimeter at this pressure and temperature? 2. The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 4.80 g peanut if the energy from burning it is transferred to 0.600 kg of water held in a 0.130 kg aluminum cup, causing a 44.0°C temperature increase?
14. The sun's temperature decreases steadily as the distance from its innermost regions increases. The sole exception to this is in the outermost part of the sun's atmosphere. This region, called the corona, consists of thin gases that are heated by the sun's magnetic field. As a result, the corona has an average temperature of about 1.0 x 10° K. What is this temperature in degrees Celsius? Must give answer then also | give answer in significant fig format

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS