Carbonaceous asteroids contain fragile organic molecules
Indicate whether the statement is true or false
TRUE
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Radiation of intensity 
is incident on an area perpendicular to the incoming light. The area is now rotated 20 
about an axis perpendicular to the incoming light. What is the resulting power per unit area now reaching the surface?
A. 
B. 
C. 
D. 
E. 
Which statement about accretion disks is not true?
A) The primary factor determining whether a white dwarf has an accretion disk is the white dwarf's mass. B) The gas in the inner parts of the disk travels faster than the gas in the outer parts of the disk. C) The gas in the inner parts of the disk is hotter than the gas in the outer parts of the disk. D) Accretion disks are made primarily of hydrogen and helium gas.
Imagine we have a planet identical to Jupiter around another star, with the exception that its orbit is much closer. How would its size compare to Jupiter?
A) it would be the same size B) it would be larger C) it would be much smaller D) it would be slightly smaller
A small airplane with a wing span of 12 m flies horizontally and due north at a speed of 60 m/s in a region where the magnetic field of the earth is 60 ?T directed 60° below the horizontal. What is the magnitude of the induced emf between the ends of the wing?
A. 50 mV B. 31 mV C. 37 mV D. 44 mV E. 22 mV