The making of abundant iron nuclei is typical of:
A) planetary nebula ejection.
B) the helium flash.
C) all novae.
D) type I supernovae.
E) type II supernovae.
E
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The dipole _________of a magnet is the pole strength times the separation distance of the two poles.
Fill in the blank(s) with the appropriate word(s).
Describe diamagnetism
What will be an ideal response?
A student weighing 200 N climbs a flight of stairs 9.0 m high in 4 s. What power is required to perform this task?
a. 1800 J b. 800 J c. 1800 W d. 800 W e. 450 W
Inside a house, stepping on a tile floor barefooted may feel almost cold, but stepping on carpet in an adjacent room feels comfortably warm. Why is this?
a. It's because the tile is below room temperature while the carpet is at room temperature. b. It's because the tile is at room temperature while carpet is normally warmer. c. It's because the thermal conductivity of tile is less than that of carpet. d. It's because the thermal conductivity of carpet is less than that of tile.