The lines of the magnetic field around a current-carrying wire
a. point away from the wire.
b. point toward the wire.
c. form concentric circles around the wire.
d. are parallel with the wire.

The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?

=force × distance a. work b. velocity c. pressure d. momentum

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud