On a manned orbital mission to a planet in the far, far reaches of the galaxy, the brave astronauts observe a geyser spouting from the surface of the planet. These astronauts have measured the water to emerge from the geyser with an initial speed of 20.3 m/sec. Further measurements confirm that the gravitational acceleration on the surface of the planet to be 8.4 m/s. How high does the water spew up from the geyser in units of meters? Note: Please enter only the numerical answer in the space below. Do not enter the units as part of your answer. Doing so will result in an incorrect answer. h =?