Atrain is moving parallel to a highway with a constant speed of 19.5 m/s. a car is traveling in the same direction as the train with a speed of 40.5 m/s. the car horn sounds at a frequency of 512 hz, and the train whistle sounds at a frequency of 322 hz. (a) when the car is behind the train, what frequency does an occupant of the car observe for the train whistle? hz (b) after the car passes and is in front of the train, what frequency does a train passenger observe for the car horn?
Answers: 2
Physics, 22.06.2019 05:50, Dweath50
Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.
Answers: 3
Physics, 22.06.2019 17:00, griffinkiley22
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 = ?
Answers: 2
Atrain is moving parallel to a highway with a constant speed of 19.5 m/s. a car is traveling in the...
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