If the 20-mm-diameter rod is made of a-36 steel and the stiffness of the spring is k = 61 mn/m , determine the displacement of end a when the 60-kn force is applied. take e = 200 gpa.

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.

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good