1 The diagram shows an object of weight Wand an object of weight Z balanced on a uniform metre
rule.
a
b
object of
weight w
50 cm mark
object of
-weight Z
pivot
metre rule
Which equation relating to W, Z, a and b is correct?
E Back

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

0.863333

86%

hope this

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