Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Who dsvrd tht th rbts f lnts r llss? 1- Th Brh 2-Crnus 3-Klr 4- Gll Th g of th u

ID: 116489 • Letter: W

Question

Who dsvrd tht th rbts f lnts r llss?

1- Th Brh 2-Crnus 3-Klr 4- Gll

Th g of th unvrs is?

1-between 10 million and 16 million years 2- between 100 million and 160 million years

3-between 1 billion and 1.6 billion years 4- between 10 billion and 16 billion years

5- between 100 billion and 160 billion years

f n bjt hs lrg rdshft nd nthr bjt hs smll rdshft, wht n w nlud but ths tw bjts?  

1- Th n wth th lrg rdshft s mvng twrd us fstr thn th n wth th smll rdshft.

2-Th n wth th lrg rdshft s mvng w frm us, nd th n wth th smll rdshft s mvng twrd us.

3- the one with the large redshift is moving away from us faster than the one with the small redshift

4-the one with large redshift is hotter and therefore is putting out more radiation

Wht uss strs t twnkl?  

1-it is intrinsic to the stars-their brightness varies as they expand and contact

2- variations in the absorption of the atmosphere

3- variable absorption by interstellar gas along the line of sight to the star

4-bending of light rays by trubulent layers in the atmospehere

Th ntrvrsl bk f ths fmus rsn, ublshd n 1543 (th r f hs dth), suggstd tht Erth nd thr lnts rbt th Sun?

1- Th Brh 2-Crnus 3-Klr 4- Gll

nrg nd wr r dffrnt wrds fr th sm thng? true or false

If ur mss s 60 kg n Erth, wht wuld ur mss b n th Mn?

1- 10lb 2-10kg 3-50kg 4-60kg

f mtrl s trnsrnt, thn t?

1- reflects light well 2- absorbs light well 3- transmits light well 4- scatters light well


Th ntrvrsl bk f ths fmus rsn, ublshd n 1543 (th r f hs dth), suggstd tht Erth nd thr lnts rbt th Sun?

1- Th Brh 2-Crnus 3-Klr 4- Gll

nrg nd wr r dffrnt wrds fr th sm thng? true or false

If ur mss s 60 kg n Erth, wht wuld ur mss b n th Mn?

1- 10lb 2-10kg 3-50kg 4-60kg

f mtrl s trnsrnt, thn t?

1- reflects light well 2- absorbs light well 3- transmits light well 4- scatters light well

Explanation / Answer

1. the answer is 3=kepler, he discovered that the orbits of planets are elliptical

2. The answer is 4=between 10 billion and 16 billion years, the actual age is13.772 billion years

3. The answer is 3=the one with the large redshift is moving away from us faster than the one with the small redshift

4. The answer is 4-bending of light rays by trubulent layers in the atmospehere

5.The answer is 2-Crnus

6. False

7. the answer is 2=10kg

8. 3- transmits light well