C) Find the kinetic of a ball of mass 200 grams moving at a speed of 20 m/s. [Ans; 20 )]
Solution,
Mass (m): 200 g
velocity (v) = 20 m/s
kinetic Energy (k. E)= ?
We know,
According to the formula,

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