How long does it take a car traveling at 50 mph to travel 75 miles? Use one of the following to find the answer.

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.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia