I have anxiety so how do i look
nothing negative plz

Heat from the sun reaches earth to a. radiation b. convection c. conduction

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

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.