Label each of these as either tranverse or longitudinal. And either mechanical, or electromagnetic. 1. microwave radiation

2.sound through air

3.vibrations of an ear drum

4. sound through water

5.radiant heat

6. radio broadcasts

7.visible light

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s