Explain why refraction occurs at the boundary between two media. A microscope is focused on a mark on a table. When the mark is covered by a plate of glass
3.00 cm thick, the microscope has to be raised 1.1 cm for the mark to be once more in focus
Calculate the refractive index of the glass block.​

1. three hundred fifty texans massacred goliad 2. the president who annexed texas tyler 3. a mission used as a fort san jacinto 4. dictator of mexico sam houston 5. texas william travis 6. commander of the texas army lone star republic 7. where santa anna was captured stephen austin 8. brought more than two thousand people to texas alamo 9. texan commander of the alamo santa anna

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.

Why were the myceneans such good fighters a. they were trained at an early age b. if they didn’t fight in battle they were put to death c. dying in battle was considered a great dignity and fighting was a way to seize someone else’s land and food