Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions

Modify the equation fδt=δ (mv) to find the force of friction.

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.

Explain what will happen if decomposers were apsent from a forest ecoysystem.