An eagle flying at 28 m/s emits a cry whose frequency is 370 hz. I’d like for this moving in the same direction as the eagle at 10.78 m/s. The speed of the eagle is 11m/s. What frequency does the blackbird hear (in hz) after the eagle passes the background?

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

Which of the following are appropriate acceleration units?

The solid that is formed and usually sinks to the bottom of a solution is the