1. nuclear fusion of hydrogen into helium occurs in the . 2. energy moves through the sun's by means of the rising of hot gas and falling of cooler gas. 3. nearly all the visible light we see from the sun is emitted from the . 4. most of the sun's ultraviolet light is emitted from the narrow layer called the where temperature increases with altitude. 5. we can see the sun's most easily during total solar eclipses. 6. the is the layer of the sun between its core and convection zone.

If a textbook weighs 37.2 n on venus, and the book has a mass of 4.4 kg, what is the strength of gravity on venus? 8.9 m/s28.9 m/si don't have enough information,9.8 m/s2

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.