Recent activity by Xiaofan Hu

Question

How does a certain frequency of line occur in the hydrogen spectrum?

asked Nov 25, 2023

2 answers 221k views

If a lamp has a resistance of 120 omha when it operates at 100 W, what current does it carry?

answered Sep 20, 2023

1 answer 23.6k views

A motorboat with the current went 72 mi in 4 hours. Against the current, the motorboat could go only 40 mi in the same amount of time. Find the rate of the motorboat in calm water.

asked Sep 8, 2023

2 answers 112k views

All of the following expressions are equal except _____

answered Aug 17, 2023

2 answers 216k views

The civil service reform act of 1978 created the office of personnel management and the ________.

asked Aug 17, 2023

1 answer 110k views

Phone-Phriends charges $35 for a text-message plan with 250 text messages included. If the customer goes over the 250 messages, the cost is $0.14 per extra text message. A customer sent and received 329

asked Jul 16, 2023

1 answer 53.4k views

PLZZ HELP Read the poem. The Courage That My Mother Had by Edna St. Vincent Millay. The courage that my mother had Went with her, and is with her still: Rock from New England quarried; Now granite in a

asked May 9, 2023

1 answer 137k views

2. Which of the following are true statements about the mayor in a strong mayor-council form of government? Select all that apply. A. ceremonial in nature B. often holds veto power C. elected official

asked May 4, 2023

2 answers 69.2k views

f(x) and g(x) are inverses of each other. f(-2) = 13. What is g(13)?Ag(13) = -3Bg(13) = 13Cg(13) cannot be determinedg(13) = -2

asked May 3, 2023

1 answer 101k views

What is one way in which the european economy was impacted by the columbian exchange? oa. many european crops were destroyed by diseases brought from the new world. ob. food production increased as new

answered Mar 24, 2023

2 answers 154k views

When your battery is fully charged it will last 36 hours. You have 30% of your battery left. How many hours do you have before your iPad

answered Dec 23, 2022

2 answers 197k views

41 Ivan has just opened a small coffee shop. He paid a copy store 50.10 percopy to make 1,428 copies of the flyer to announce the opening of the shop an is having 14 distribute all 1 428 flyers, and he

asked Dec 1, 2022

1 answer 103k views

NO LINKS Why was Lincoln so cheerful now? Why was his wife, Mary, unhappy?

answered Sep 30, 2022

1 answer 22.5k views

Resham can read 3 pages in 7 minutes. Pedro can read 8 pages in 14 minutes. To get credit, justify your answer using ratios. Who is the faster reader

answered Sep 30, 2022

1 answer 44.7k views

We paid $8 for 2 hamburgers, which is a rate of $_ per hamburger

asked Aug 2, 2022

2 answers 149k views

HALPPPP PLSS!!!! Which sentence is gramatically correct? Question 4 options: Yo juego al golf. Yo jugamos al golf. Yo juegan al golf. Yo juega al golf.

answered Jul 18, 2022

2 answers 226k views

RIGHT ANSWERS ONLY PLEASE. What does the term text structure refer to? a. the number of paragraphs used to support a main idea b. the type of research an author does for a piece of writing c. the style

asked Jul 1, 2022

2 answers 7.4k views

What’s the answer to this question

answered Apr 22, 2022

2 answers 110k views

What is a common advantage of nuclear, wind, hydroelectricity, and solar energy? A. All four energy sources are reliable, having no fluctuations in production. B. All four energy sources are renewable.

answered Apr 16, 2022

2 answers 161k views

Helppp mee no links pleaseeeee

answered Apr 10, 2022

2 answers 5.8k views

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