Recent activity by Yiran

Recent activity by Yiran

when light falls obliquely, there is a change in direction as it moves from one medium to another but when it falls perpendicular to the surface , there is no change in direction even when two mediums

asked Oct 27, 2023

1 answer 18.3k views

Every time an episode of "Friends" airs, Jennifer Aniston makes 4% of the earnings. It costs stations $1,577 to air an episode. In one week 382 episodes of "Friends" aired. How much did Jennifer Aniston

asked Jul 20, 2023

1 answer 157k views

Which statement best expresses the central idea of the text how did the greek and romans write

answered Jun 14, 2023

1 answer 212k views

What is the process where inorganic molecules are converted to an energy source? Select one: O a. Photosynthesis O b. Thesis O c. Cellular respiration O d. Chemosynthesis

asked May 16, 2023

2 answers 89.3k views

Pls help me with these questions pls I will give 15 points

answered May 6, 2023

2 answers 140k views

Injury to brain is fatal. So brain is protected from external shock and injury. State the ways brain is protected in the body.

answered Mar 25, 2023

1 answer 110k views

What is the inverse of the function f(x) = 4x + 8? 1 • h(x)= -x-2 4 1 O h(x)= 4x+2 O h(x)= -X - 2 O h(x) = →*+2

answered Feb 7, 2023

1 answer 178k views

10)110 help me please

answered Jan 25, 2023

2 answers 105k views

Countries with the best economies, and therefore best healthcare, are most likely to produce a population with life spans. a. shorter c. happier b. longer d. none of the above Please select the best answer

answered Jan 11, 2023

1 answer 15.4k views

How do free energy machines work?

answered Dec 9, 2022

2 answers 169k views

Evaluate C=2 pi r for r=8 A. C=10 pi B. C=16 pi C. C=28 pi D. C=16

answered Nov 30, 2022

2 answers 63.0k views

Need help quick! The acceleration of an object varies directly as the force acting on it. If a force of 240 Newtons causes an acceleration of 150 m/s squared, what force will cause an acceleration of 100

answered Nov 14, 2022

2 answers 155k views

When do archeologists and historians believe the first people settled in North America? A.500-600 years ago B.In the late 1600s BCE C.15,000-16,000 years ago D. Over 2 million years ago

asked Nov 1, 2022

1 answer 4.1k views

HELP! 30 + 40 A. (10 + 3)(10 + 4) B. (10 × 3)(10 × 4) C.10 + (3 × 4) D.10(3 + 4)

answered Aug 2, 2022

2 answers 17.1k views

Solve the system by graphing. x + 2y = −3 −x + y = 3 HELPPPPPP PLZZZ

answered Jul 23, 2022

1 answer 91.4k views

Which expression is equivalent to 27 ?

answered Jul 17, 2022

1 answer 55.4k views

Can someone/anyone PLSSS help me out I’ll cash-app u

answered Jul 2, 2022

2 answers 23.3k views

Someone, please answer this ASAP.... it's due today :( At a fishery, the largest catches in August were of blackfin tuna, sailfish, blue marlin, and king mackerel. The fishery calculated the mean and standard

asked Jul 2, 2022

1 answer 184k views

I keep you grounded, my brothers and sisters are seriously annoying but we are very close. I can't imagine life without them.

asked Jun 20, 2022

2 answers 98.7k views

Are the graphs of the given equations identical lines parallel lines are lines intersecting on a single point

answered Jun 15, 2022

2 answers 211k views

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