1. Our entire solar system orbits around the center of the about once every 230 million years. 2. The Milky Way and Andromeda galaxies are among a few dozen galaxies that make up our . 3. The Sun appears to rise and set in our sky because Earth once each day. 4. You are one year older each time Earth about the Sun. 5. On average, galaxies are getting farther apart with time, which is why we say our is expanding. 6. Our is moving toward the star Vega at about 70,000 km/hr.

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281