Askateboarder, with an initial speed of 2.0 m/s, rolls virtually friction free down a straight incline of length 18 m in 3.3 s. at what angle θ is the incline oriented above the horizontal?

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

Aball horizontally thrown from a cliff at 8m/s

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.