Which statement best describes how the magnitude and direction of the bowling ball's velocity changed with each tap of the baton? the direction of velocity changed due to the force applied by the baton, but the magnitude of the velocity did not significantly change. the magnitude of the ball's velocity decreased due to the force applied by the baton, but the direction of the velocity did not change. the magnitude of the ball's velocity increased due to the force applied by the baton, but the direction of the velocity did not change. no change in either the magnitude or direction of the ball's velocity occurred due to the force applied by the baton

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r