A metal cube with a negative charge -Q_1−Q 1
​
minus, Q, start subscript, 1, end subscript is brought into contact with a cylinder of a negative charge -Q_2−Q
2
​
minus, Q, start subscript, 2, end subscript, where |Q_1| > |Q_2|∣Q
1
​
∣>∣Q
2
​
∣vertical bar, Q, start subscript, 1, end subscript, vertical bar, is greater than, vertical bar, Q, start subscript, 2, end subscript, vertical bar.

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

Select the correct answer. what does the process of natural selection involve?

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?