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# Spacecraft Reentry. A spacecraft made of aluminum circles ISBN: 9780321675460 31

## Solution for problem 93P Chapter 17

University Physics | 13th Edition

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Problem 93P

Spacecraft Reentry. A spacecraft made of aluminum circles the earth at a speed of 7700 m/s. (a) Find the ratio of its kinetic energy to the energy required to raise its temperature from 0°C to 600°C. (The melting point of aluminum is 660°C. Assume a constant specific heat of 910 J/kg · K.) (b) Discuss the bearing of your answer on the problem of the re-entry of a manned space vehicle into the earth ’s atmosphere.

Step-by-Step Solution:

Solution 93P Problem (a) Step 1: Speed of the aircraft v = 7700 m/s Specific Heat capacity of Aluminium c = 910 J/Kg.K T = 0°C 1 T = 600°C 2 Step 2: To find the ratio of kinetic energy to the energy required to increase temperature from 0 °C to 600°C K.E 2mv2 Q = m.c.T 2 K.E = v Q 2.c(T2T1) Step 3: Substituting the values KQE = 2 910 (6000) * * K.E = 54.3 Q the ratio of kinetic energy to the energy required to increase temperature from 0°...

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##### ISBN: 9780321675460

Since the solution to 93P from 17 chapter was answered, more than 302 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 93P from chapter: 17 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. The answer to “Spacecraft Reentry. A spacecraft made of aluminum circles the earth at a speed of 7700 m/s. (a) Find the ratio of its kinetic energy to the energy required to raise its temperature from 0°C to 600°C. (The melting point of aluminum is 660°C. Assume a constant specific heat of 910 J/kg · K.) (b) Discuss the bearing of your answer on the problem of the re-entry of a manned space vehicle into the earth ’s atmosphere.” is broken down into a number of easy to follow steps, and 76 words. University Physics was written by and is associated to the ISBN: 9780321675460. This full solution covers the following key subjects: Aluminum, spacecraft, its, Energy, EARTH. This expansive textbook survival guide covers 26 chapters, and 2929 solutions.

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