menu
QAmmunity.org
Questions by Dongnhan
Login
Register
My account
Edit my Profile
Private messages
My favorites
Register
Questions by Dongnhan
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Questions by Dongnhan
Filter
User Dongnhan
Recent activity
All questions
All answers
A table tennis (ping-pong) ball has a mass of about 2.45 g. Suppose the ball is hit across the table with a speed of about 4.0 m/s. What is its kinetic energy? (Ek = 1/2mv²)
asked
Aug 22, 2024
Physics
high-school
1
answer
1
vote
137k
views
What is a hair-like structure used for movement?
asked
Feb 12, 2024
Biology
high-school
1
answer
5
votes
69.6k
views
5. For the following reaction: I2 (g) + H2 (g)>2HI (g) If the amount consumed from (I2) according to the above reaction is (50.8g) and the actual yield of HI is (40g) then the percentage yield of (HI)
asked
Sep 27, 2023
Chemistry
college
1
answer
25
votes
65.4k
views
Which is the answer a b or c.
asked
Jun 25, 2023
Biology
high-school
1
answer
9
votes
35.8k
views
Which of the following is not an assumption of stage theories? A. Stages are cultural. B. Stages are genetically predisposed. C. Each stage corresponds to a specific age. D. Each person goes through the
asked
Jun 24, 2023
Social Studies
high-school
1
answer
16
votes
150k
views
34) How much power does it take to do 600 joules of work in 8.0 seconds?a) 75 Wb) 3.6 x 1045 Wc) 600 Wd) 4800 W
asked
May 7, 2023
Physics
college
1
answer
0
votes
221k
views
A triangle has vertices on a coordinate grid at G(-5, -5), H(8,-5), and I (8,0).. What is the length, in units, of GH?
asked
May 4, 2023
Mathematics
college
1
answer
2
votes
101k
views
Which percent of a dollar is a nickel and 6 pennies? A 6% B 11% C 7% D Not here
asked
Feb 20, 2023
Mathematics
high-school
2
answers
5
votes
38.6k
views
Please this is my last problem and all my points just solve this for im begging
asked
Dec 12, 2022
Mathematics
college
1
answer
2
votes
222k
views
X/4 = 2 what is the answer to x?
asked
Feb 15, 2022
Mathematics
high-school
2
answers
2
votes
141k
views
Happy House Cleaning Services charges a fee represented by the equation y=10x+20 Interpret the slope, and y-intercept of the linear function for Happy House Cleaning
asked
Feb 7, 2022
Mathematics
high-school
1
answer
4
votes
157k
views
What division sentence means the same as the following subtraction sentences? 12-4=8, 8-4=4,4-4=0
asked
Dec 12, 2021
Mathematics
high-school
1
answer
3
votes
115k
views
Four red candies and three green candies can be combined to make many different flavors. Flavors are different if the percent red is different, so 3 red / 0 green is the same flavor as 2 red / 0 green;
asked
Sep 14, 2021
Mathematics
college
2
answers
2
votes
106k
views
(15+23)+7=15+(_______+7)
asked
Sep 8, 2021
Mathematics
college
1
answer
0
votes
9.4k
views
Plants that might be called "weeds" are often great pioneer species. What characteristics do they possess that would make them a successful pioneer species?
asked
May 16, 2021
Biology
high-school
1
answer
4
votes
138k
views
Topic/ Objective : Characterization How do authors build ___ ?
asked
Mar 24, 2021
English
middle-school
1
answer
4
votes
206k
views
The class has 14 boys, 12 girls, and one teacher. What is the ratio class to girls?
asked
Mar 24, 2021
Mathematics
college
1
answer
5
votes
97.4k
views
help me. Question: Triangle HEF is the image of triangle FGH after a 180 degree rotation about point K. Select all statements that must be true.
asked
Mar 22, 2021
Mathematics
high-school
2
answers
2
votes
222k
views
What makes a narrative compelling?
asked
Feb 27, 2021
English
college
2
answers
1
vote
94.8k
views
What is the period of the graphed function? A. π B. 0.75 C. 2 π D. π/2 E. -0.75
asked
Nov 12, 2020
Mathematics
middle-school
1
answer
3
votes
223k
views
Page:
1
2
next »
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
8.3m
questions
10.9m
answers
Search QAmmunity.org