If the mass of the pendulum bob is doubled, predict the change in kinetic energy. A)
It remains constant.
B)
It is double the orginal KE.
It is one-half the original KE.
D)
It is four times the orginal KE.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Select all the correct answers. which three statements about electromagnetic radiation are true?

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