S new technology is developed, theories are studied in new ways. Which best describes what happens to the theory? It becomes a hypothesis.
It becomes a law.
It becomes a fact.
It changes over time.

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 the maximum r-value of the polar equation r =3+3 cos 0

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?