Planets beyond the solar system. on october 15, 2001, a planet was discovered orbiting around the star hd68988. its orbital distance was measured to be10.5million 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.

Part a)

Part b)

Explanation:

Part a)

As we know that the period of revolution of the planet is given by

now we know that

T = 6.3 days

now we have

Part b)

As we know that mass of sun is given as

now we have

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

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firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.