Apearlfish spends the day inside the alimentary tract, or intestines, of a sea cucumber. the fish emerges from the sea cucumber at night to feed on small crustaceans. the pearlfish gets a safe place to live. the sea cucumber does not gain anything from the relationship, nor is it harmed.

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?