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A train with cross-sectional area S, is moving with speed vt inside a long tunnel of cross- sectional area So (So = 4St). Assume that almost all the air (density p) in front of the train flows back between
answered
Jan 2
Physics
college
1
answer
144k
views
A square is inscribed in a ˚le. If the ˚le has an area of 9π, what is the length of the square's diagonal? a) 3√2 b) 6 c) 3 d) 2√3
asked
Aug 13, 2024
Mathematics
high-school
1
answer
41.9k
views
How many moles of solute are in 250ml of 2.0m cacl2?
answered
May 31, 2024
Chemistry
high-school
1
answer
184k
views
Which term best describes the concept that there are certain rights that cannot be taken or given away O Inalienable rights O Proportional representation O Enumerated powers The Supremacy Article Consent
answered
May 21, 2024
Social Studies
college
1
answer
233k
views
How do I solve this? f(x)=1/3x^2-2x+8
answered
Apr 26, 2024
Mathematics
high-school
1
answer
55.9k
views
Describe the nature of the equation 4x²-12x+9=0
answered
Dec 18, 2023
Mathematics
high-school
2
answers
191k
views
1.Charles wants to invest $20,000. The investment firm is offering 8% interest compounded monthly. How much money will he have made if he leaves his money with the bank for 40 years?2.Lisa’s grandmother
answered
Dec 13, 2023
Mathematics
high-school
1
answer
210k
views
What is the domain of this function? O x O {x|x <8) O {x|0 < x <8] O x
asked
Nov 18, 2023
Mathematics
high-school
2
answers
159k
views
Find the sum and product of the roots. 3x^2 - 4x - 7 = 0
asked
Oct 19, 2023
Mathematics
high-school
1
answer
52.9k
views
Quiero conocerme una persona famosa. yo quiero conozco una persona famosa. Which is the correct way to say " I want to meet someone famous" in spanish.
answered
Oct 11, 2023
Spanish
college
2
answers
212k
views
Explain how the moon causes high and low tides.
asked
May 8, 2023
Chemistry
high-school
2
answers
170k
views
determine if the following system or equations has no solutions and definitely many solutions are exactly one solution 6X + y = -5 30X + 5y = -20 what is the answer
answered
Apr 16, 2023
Mathematics
college
1
answer
195k
views
7a - 8 = 3a + 24 que es la answer
answered
Mar 18, 2023
Mathematics
college
2
answers
56.6k
views
Marina has $145 to spend. She spends $68. 50 on jeans. T-shirts cost $12. 75. Write and solve an inequality to find the greatest number of t-shirts she can buy
asked
Mar 18, 2023
Mathematics
high-school
1
answer
125k
views
State and explain ways to set-up business in domestic market?
asked
Dec 7, 2022
Business
college
1
answer
180k
views
Which statement best explains how the gerund is used in the sentence? Whispering is not my sister's gift; in fact, she speaks so loudly in her normal voice that most people believe she is shouting. A.
answered
Nov 13, 2022
English
college
2
answers
79.1k
views
!!!!!!!!please help me!!!!!!
answered
Sep 22, 2022
History
college
1
answer
115k
views
Graph y = 2x + 3 A? B? C? OR D
answered
Sep 12, 2022
Mathematics
high-school
1
answer
9.7k
views
Service is helping other people and being active in your community. For example, one group of teens planted a community garden with their friends. They grow a variety of vegetables. The garden requires
asked
Sep 11, 2022
English
middle-school
2
answers
52.3k
views
Driving Distance from Key West City Number of Miles Miami 150 - 160 Pensacola 790-800 Carlos will travel at an average rate of 50 miles per hour. About how many more hours will it take Carlos to drive
asked
Sep 5, 2022
Mathematics
college
1
answer
58.0k
views
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