A wave has a period of 2s and a wavelength of 5m. What is the speed of the wave?

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book. required: distance away from earth or moon

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.