This diagram shows a game. The player has to control the strength of the electromagnets to make a steel ball move through a maze. The electromagnets at B and D are connected to the same control knob. If you turn the knob to the right, the ball moves towards B. Explain how the control knob changes the current in electromagnets B and D to make this happen.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Which type of basaltic lava flow has a fairly smooth