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Solve the boundary value problem: ∂²U/∂t² + (1/r)∂u/∂r + β = ∂U/∂t, 0 < r < [infinity], U(r, 0) = 0, 0 ≤ r < [infinity], U(0, t) = 0, 0 < t < [infinity].
answered
Oct 30, 2024
Mathematics
college
4
votes
225k
views
A point at (-4, 7) is rotated -90° about the origin. What are the new coordinates for the point? Answers: (4, -7) (-7, 4) (7, 4) (-4, -7)
answered
Oct 20, 2024
Mathematics
high-school
3
votes
164k
views
Write out a² x a⁴ in expanded word form
answered
Sep 30, 2024
Mathematics
high-school
2
votes
57.8k
views
Question 26 of 50 Money serves as a: O Both of these choices are correct. standard of value. source of value.
answered
Aug 9, 2024
Social Studies
college
0
votes
210k
views
California Law designates that any mandated reporter who knowingly and willfully fails to report: a.) can't later testify in court if the case goes to trail b.) will be charged with a felony, which can
answered
May 17, 2024
Medicine
college
4
votes
188k
views
Why is it difficult to diagnose Alzheimer's disease and Parkinson's disease? A. Lack of effective diagnostic tools B. Similarities in symptoms C. Limited understanding of these conditions D. Both A and
answered
Feb 16, 2024
Health
high-school
2
votes
8.6k
views
Treatment regimes for peptic ulcer caused by H Pylori should include
answered
Feb 2, 2024
Medicine
college
1
vote
72.4k
views
Personal experience is strong evidence in an academic essay.
answered
Aug 1, 2023
English
high-school
4
votes
56.7k
views
If i am ahead on credits on my freshman yr and my senior yr i only need to take two classes to graduate will that affect my gps if i get a B and a C in those two classes
answered
May 21, 2023
English
high-school
5
votes
216k
views
5 x ( 3 + h ) = 15 + 45
answered
Apr 12, 2023
Mathematics
high-school
6
votes
25.8k
views
Can someone explain how to get the answer, please? Thanks!
answered
Mar 2, 2023
Mathematics
high-school
6
votes
202k
views
All the human races like Africans, Asiansz Europeans, American And others might have evolved from a common ancestors. Provide a few evidences in support of this view. Please help me with my assignment.
answered
Sep 30, 2022
Health
high-school
4
votes
108k
views
Is this correct or incorrect: Tengo unas maestras buenas.
answered
Sep 20, 2022
Spanish
high-school
2
votes
92.1k
views
Where does the lungs initially supply the oxygen to? * The muscles The brain The heart The Pancreas
answered
Mar 25, 2022
Health
high-school
3
votes
111k
views
Which statements accurately describe China after World War II ? Choose all answers that are correct. After Mao's death, Chinese leaders began to open the country more to the west. The Cultural Revolution
answered
Jan 28, 2022
History
high-school
9
votes
49.9k
views
Find G(x) =3x^2-2x-4. (X+5)
answered
Jan 8, 2022
Mathematics
high-school
3
votes
204k
views
How were jobs different for african americans in the 1950s?
answered
Jan 7, 2022
History
high-school
1
vote
95.4k
views
The following items can be found in any classroom: desayuno, mochila carpeta pupitre, moneda, papel papel, lápiz, pupitre carpeta, moneda, escritorio
answered
Nov 12, 2021
Spanish
high-school
4
votes
110k
views
Which net force occurs when combined forces are balanced? A. 0 N B. 50 N C. 100 N
answered
Oct 3, 2021
Chemistry
middle-school
3
votes
154k
views
What is the part of a CSS declaration that describes the HTML tag? A.the selector B.the pointer C.the value D.the property
answered
Sep 25, 2021
Computers and Technology
college
4
votes
184k
views
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