Ablock of wood weighing 25 n is subrnerged under water. if the net force on the wood is 5 n upward, how much buoyant force is acting on the wood?
a) 30 n upward
b) 20 n upward
c) 5 n upward
d) 25 n downward

A) 30 N upward

Explanation:

There are two forces on the block: buoyant force up and weight down.  The net force is 5 N up, so:

5 N = B − W

The weight is 25 N so:

5 N = B − 25 N

B = 30 N

The buoyant force is 30 N up.

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..

b.

hope this : )