A piece of black tape is now placed over the upper half of the lens. Which of the follow is true. a. Only the lower half of the object (i. e., the arrow tail) will show on the screen. b. Only the upper half of the object (i. e., the arrow head) will show on the screen. c. The whole object will still show on the screen.

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

Which accurately compares concave and convex lenses?

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation