13. A beam of weight 6.0 N is suspended from two strings P and Q.
String Pis 30 cm from the left-hand end of the beam, as shown. String Q is not shown.
2.0N
string P
30 cm
20 cm
beam
6.0N
The tension in string Pis 2.0 N.
What is the tension in string Q and where is it attached so that the beam is in equilibrium?
8.0 N at 7.5 cm from the left-hand end
4.0 N at 15.0 cm from the left-hand end
4.0 N at 10.0 cm from the left-hand end
6.0 N at 10.0 cm from the left-hand end

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..

when it gains or loses electrons

there are no correct statementd on the list of choices you provided.