a particle moves on the circle x2 y2=25 in the xy-plane for time t≥0. at the time when the particle is at the point (3,4), dxdt=6. what is the value of dydt at this time?

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.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form