menu
QAmmunity.org
Recent activity by Yuyang He
Login
Register
My account
Edit my Profile
Private messages
My favorites
Recent activity by Yuyang He
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Recent activity by Yuyang He
Filter
User Yuyang He
Recent activity
All questions
All answers
An E.Coli strain has a half life (To) of 2 days in organic topsoil. If the population entering the soil is 1 million cells per litre, how long does it take to become technically terminated (< 1 unit per life)? HINT: Rework the expression: N/N0 = (0.5)⁽ᵀ/ᵀᵒ⁾
asked
Dec 10, 2024
Biology
high-school
1
answer
86.6k
views
If the probability of a swan drowning is 0.23 and the probability of a swan swimming is 0.57, find the probability of a swan who can swim AND does not drown. Assume the event are independent.
answered
Dec 2, 2024
Mathematics
college
1
answer
68.8k
views
Name 5 flight director modes that can be adjusted using FD SYNC button:
asked
Nov 9, 2024
Engineering
college
1
answer
68.1k
views
Which of the following best describes a sign, sound, emblem, or other thing that is arbitrarily linked to something else and represents it in a meaningful way? A) Symbol B) Semaphore C) Gesture D) Signal
answered
Oct 28, 2024
Arts
high-school
1
answer
117k
views
Pls help me with this! Will give points!
asked
Oct 7, 2024
Mathematics
high-school
2
answers
169k
views
What condition is associated with green, sticky nipple discharge? a) Intraductal papilloma b) Breast cancer c) Mammary duct ectasia d) Galactorrhea
asked
Sep 27, 2024
Medicine
college
1
answer
59.0k
views
The force required to stretch a Hooke's law spring varies from 0 N to 44.9 N as we stretch the spring. What is the relationship between the force applied and the displacement of the spring? a) Inversely
answered
Sep 17, 2024
Physics
high-school
1
answer
182k
views
A line goes through (2,4) and has a slope of 1/2. Find a second point on the line
asked
Jul 26, 2024
Mathematics
high-school
1
answer
50.6k
views
After the reaction in part B of the experiment has reached equilibrium, namely Mg(OH)2 (s) <--> Mg2+ (aq) = 2OH- (aq) the equilibrium will shift to the left if MgCl2 (aq) is added a. true b. false
asked
Jul 16, 2024
Chemistry
high-school
1
answer
133k
views
In The Poisonwood Bible,Why do the older villagers most disapprove of Leah's hunting?
answered
Jul 14, 2024
English
high-school
1
answer
186k
views
Describe a time when you or someone you knew made an error in a decision and what type of bias occurred
asked
Jun 20, 2024
English
college
1
answer
190k
views
Which is the interval where the function f(x) = -| x + 3 | - 2 is increasing? x < -3 x < -3 x > -3 x > -3
answered
Mar 21, 2024
Mathematics
middle-school
1
answer
77.8k
views
Question 5 of 10 Fill in the blank in the following dialogue with the appropriate interrogatory word below. es el examen? Es el martes. A. Cómo B. Cuándo OC. Qué D. Quién
answered
Feb 20, 2024
Spanish
college
1
answer
148k
views
What role do electrons play in dehydration synthesis and hydrolysis? a) Electrons are released in dehydration synthesis; absorbed in hydrolysis b) Electrons are absorbed in dehydration synthesis; released
asked
Feb 18, 2024
Biology
high-school
1
answer
8.2k
views
Health System Factors name the contributions to health care disparities: THERE ARE 3
asked
Feb 11, 2024
Health
high-school
2
answers
113k
views
This statement will pause the screen, until the [Enter] key is pressed. A) cin; B) cin.getline(); C) (); D) (); E) ();
answered
Jan 23, 2024
Computers and Technology
high-school
1
answer
89.9k
views
I need help with this can someone pls help
answered
Oct 22, 2023
Mathematics
college
2
answers
96.2k
views
Which situation is best modeled by the inequality h > 35
asked
Sep 10, 2023
Mathematics
high-school
1
answer
205k
views
1) Pedro vai fazer um empréstimo de R$ 70.000,00 para uma reforma em seu estúdio de fotografia e está analisando qual sistema de amortização vai utilizar, de acordo com as propostas de uma agência financiadora,
answered
Aug 24, 2023
Mathematics
college
1
answer
83.4k
views
Solve the system of equations using elimination.15q – 4r = 625q + 8r = 86
answered
Aug 18, 2023
Mathematics
college
1
answer
209k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.5m
questions
12.2m
answers
Search QAmmunity.org