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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 torsion group is a group all of whose elements have finite order. A group is torsion free if the identity is the only element of finite order. Prove that the t
asked
Oct 27, 2024
Mathematics
high-school
1
answer
6.6k
views
Find the p value for n=23 with a difference mean of 12.5 and sd of difference 13.9 for the null hypothesis that there is no difference from?
asked
Oct 20, 2024
Mathematics
high-school
1
answer
39.5k
views
a whale watching company noticed that many customers. what conclusion can you draw from the 95% interval
answered
Oct 5, 2024
Mathematics
high-school
1
answer
81.2k
views
Under the Fair Housing Act, refusing to rent to a disabled person is permissible if: a) The disabled person demands you make reasonable modifications at your cost. b) The disabled person demands you let
answered
Sep 18, 2024
Business
high-school
1
answer
83.2k
views
If a woman ovulates two oocytes and both are fertilized, - identical twins result. -fraternal twins result. -conjoined twins result. - monozygotic twinning occurs. - paternal twins result.
answered
Sep 8, 2024
Biology
high-school
1
answer
76.3k
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
In standard IUPAC units, the faraday is equal to 96,480 coulombs. A coulomb is the amount of electric charge passed when a current of one ampere flows for one second. Given the charge on the electron is
answered
Aug 11, 2024
Physics
high-school
1
answer
91.6k
views
What is the answer to this expression? 3⋅10+3⋅5 ^2 +3 ? Pls help Will leave gd rating
asked
Aug 8, 2024
Mathematics
college
1
answer
149k
views
The focal length of the eyepiece of a certain microscope is 18.0 mm. The focal length of the objective is 8.00 mm. The distance between objective and eyepiece is 19.7 cm. The final image formed by the
answered
Jun 26, 2024
Physics
high-school
1
answer
151k
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
In our case, we have set the Account, Contact, and Lead object files in the invalid_fields rule, so the rule will only apply to those ___. In the invalid_user_permissions, we use extensions, so that rule
answered
Apr 4, 2024
Computers and Technology
high-school
1
answer
143k
views
Based on the research of Philip Reno, early hominins show reduced sexual dimorphism, which is evidence for cooperation and likely for: a. monogamy. b. multifamily grouping. c. pair bonding. d. multimale
answered
Feb 2, 2024
Biology
high-school
1
answer
128k
views
In his work entitled "Resistance to Civil Government," Henry David Thoreau is jailed for non-payment of taxes. This is an example of which of the following concepts? A. Values B. Mores C. Norms D. Sanctions
asked
Jan 13, 2024
History
college
1
answer
81.9k
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
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