2. The expression of a stationary wave is given by y = 0.3 cos 0.51x sin 60tt
I
Where y and x in meters and t is in seconds.
i. Write the expression for two progressive waves resulting the stationary wave above.
ii. Determine the wavelength, frequency, amplitude, and velocity for both progressive waves.

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water