What is a major difference in the composition of spiral galaxies

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?