An egg is thrown horizontally off a 20 m high roof with an initial velocity pf 6.5 m/s. How many seconds is the egg in the air?

With i really need the correct answer!

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

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.