If you throw a ball up with a velocity of 3 m/s, how long will it take for the ball to reach the top of its path? 3.31 sec
2.31 sec
1.31 sec
0.31 sec

Why should seat belts not be mandatory quick plz

What happens when a rubber rod is rubbed with a piece of fur?

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.