Which situation describes a non-contact force changing the speed of an object?(1 point) a gust of wind blowing a leaf away

a drawer opening when a user pulls the handle

a bicycle accelerating as the rider pedals more quickly

a ball accelerating as it rolls down a hill

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)