A750 watt hair dryer is used for 60 seconds how many joules of energy are used

your answer should be 45,000 hope this helped .

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..

f=ma newton's second law 7x8=56n