If your weight is 500 N, and you are standing on a floor that is 20 m above the ground, what
is the gravitational potential energy between
you and Earth, relative to the ground?

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.

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)