Determine the total frozen fraction after 60 minutes of cooling if the tubes are in a staggered arrangement instead of the in-line arrangement.

What will be an ideal response?




Physics & Space Science

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A thin beam of light enters a thick plastic sheet from air at an angle of 32.0° with the normal and continues in the sheet at an angle of 23.0° with the normal. What is the index of refraction of the plastic?

A) 0.74 B) 1.11 C) 1.28 D) 1.36

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Systems alone tend to move toward

A) order. B) disorder. C) temperature inversions. D) none of the above

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Astronomers use ________ to determine the magnetic field of white dwarfs.

A. the Zeeman splitting of spectral lines B. the doppler effect C. conservation of angular momentum D. Wien's law

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A series LR circuit includes a 9.0 V battery, a resistance of 0.50 and an inductance of 0.80 H. What is the induced emf 2.0 s after the switch has been closed?

A. 0.0 B. 9.0 V C. 5.2 V D. 2.6 V E. 19 mV

Physics & Space Science