On October 15, 2001, a planet was discovered orbiting around the star HD68988. Its orbital distance was measured to be 10.5 million kilometers from the center of the star, and its orbital period was estimated at 6.3 days.

A. What is the mass of HD68988? Express your answer in kilograms.

B. What is the mass of HD68988? Express your answer in terms of our sun's mass.

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..

heat the gas and measure the pressure

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the total distance traveled by the car is

30km + 49km = 79 km .