The intensity of the light is to control the frequency of the speaker output. When the light intensity is at the maximum measurable, the frequency of the speaker should be at 5000 Hz. When there is no light (dark), the frequency of the speaker is 1000 Hz. The range of tones at intermediate frequencies should be continuous and proportional to the intensity of light. More sophisticated versions of this system can be used in devices that can "see" images such as a vision guided missile. Required:
Sketch the schematic for this circuit below.

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?