21) A delicious guinea pig tries to run away from a hungry person. The guinea pig has a mass of 2 kg and is running with a force of 200 N. What is its acceleration?
a) 100 m/s'.
b) 400 m/s.
c) 0.002 m/s
d) 202 m/s

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

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

Consider an air-filled charged capacitor. how can its capacitance be increased?