Two trains of distance 100 km travelling towards each other at train a at 60 km/hr and train b at 40km/hr when a bird sitting on train a goes at a speed of 90km/hr starts moving towards train b from train a starts and comes back and forth. find the total distance travelled by the bird

From the perspective of an employee that effective channeling of work related information and concerns

3. which is not a primary color of light? blue red green yellow

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. which of the following best describes how such a telephone is able to transmit and receive information? a. the cellular telephone transmits, receives, and encodes information using only sound waves. b. the cellular telephone transmits, receives, and encodes information using only electromagnetic waves. c. the cellular telephone transmits information by electromagnetic waves to a receiver which then encodes them and produces sound. d. the cellular telephone transmits information by sound waves to a receiver which then encodes them and produces electromagnetic waves.