Which of the following statements is true? AA compass is affected by the earth's magnetic field. BAn object's magnetic field gets weaker as you move closer to it. COnce a piece of metal becomes magnetized, it stays magnetized. DThe earth's magnetic north pole is located at the geographical north pole.

Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00