An astronaut has a mass of 60 kilograms before she takes off in her ship. When she reaches Earth orbit, her mass is ; when she lands on the Moon, her mass is . .

60 kg

60 kg

Explanation:

The mass of a body does not change on the surface of the Earth , on the surface of the Moon or in a space shuttle. The weight is affected as the person moves from the Earth to the Moon because

W= mg

Weight = mass x g

The value of g changes as the Earth has more gravitational force than the Moon.

In the given question the mass would not change but the weight would change

on the Earth it would be

W= mg = 60 * 10= 600 N  (taking g=10 m/s²

On the Moon it would be

W= mg = 60*10/6= 100 N (the value of g on Moon is 1/6th of the value of g of Earth)

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..