After one hour, 1/16 of the initial amount of certain radioactive isotope remains undecayed. the half life of the isotope is:

Explanation:

As we know that

here we know that

so we will have

so it will be

now we know that

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..

50 inches should be the resultant vector