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How have the competing explanations' experiments on atoms affected the development of the atomic model?

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm