Answers by Hartmut Pfitzinger
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Answers by Hartmut Pfitzinger

Answers by Hartmut Pfitzinger
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Acetylene torches are used for welding but the thermite reaction can be useful in situations in which acetylene torches are inappropriate. The thermite reaction is Fe2O3 + 2Al yields Al2O3 + 2Fe A welder
answered Dec 9, 2024
7 votes
101k views
A van left Town X for Town Y at 11 09 and passed by a school 117 km away at 15 03. A car left Town X in the same direction at 14 06 and passed the same school at 15 24. How long did it take for the car
answered Nov 12, 2024
7 votes
225k views
How long did the mother go to college for?
answered Sep 18, 2024
2 votes
50.1k views
Frank breaks the law and is sent to prison as a punishment; his punishment is supposed to discourage others from doing the same thing. this refers to which of the following punishment goals? O General
answered Jul 18, 2024
5 votes
150k views
Explain the concept of Yin and Yang. What does this visual image of Yin and Yang represent? How does this relationship express fundamental Daoist thought?
answered Jun 26, 2024
3 votes
168k views
The investors of Smith Autos have put up $500,000 to construct a building and purchase all equipment required to wash cars. The investors expect to earn a minimum return of 10% on their investment. If
answered May 27, 2024
7 votes
16.3k views
Pls help ASAP I need a good grade on this
answered Nov 23, 2023
5 votes
44.5k views
Write the equation of the line that passes through the points (-5, -2) and(-7, -2). Put your answer in fully reduced point-slope form, unless it is a vertical orhorizontal line.
answered Oct 17, 2023
6 votes
29.7k views
Difference between sorting and filtering​
answered Oct 5, 2023
6 votes
131k views
Which point in the coordinate plane? HELP!!
answered Aug 13, 2023
9 votes
170k views
4. One of the following regions did not experience a bloody encounter with the conquering army of Menelik II. a) Wallaga b) Kaffa (c) Arsi d) Wollayita​
answered Apr 9, 2023
5 votes
70.7k views
Strontium-90, a radioactive isotope with applications in medicine, has a half-life of approximately 30 years. Out of a 100-gram sample, approximately how much remains after 170 years? 2 grams 8 grams 17
answered Nov 22, 2022
14 votes
47.1k views
A car travels 100 kilometers in 30 minutes. which statements about the motion of the car are true? Choose all the apply A) The car has an average speed of 25 km/h. B) the car’s speed cannot be known. C)
answered Nov 8, 2022
4 votes
30.6k views
Which of these is equal to 4 (−)4 A.()4 B.(−)4 .−()4 D. (−)4
answered Jul 17, 2022
5 votes
120k views
Pls help: Why is Zoe Saldaña famous? Where is her family from? Is she an inspiration and why?
answered May 25, 2022
3 votes
128k views
What are some of the things Congress can and cannot do?
answered Feb 23, 2022
4 votes
137k views
Select the correct answer. Which of these is described as force per unit charge on a positive test charge? А.test charge B.source charge C.electric force D. electric field E.electric current
answered Feb 16, 2022
2 votes
40.0k views
Which statement about the cell membrane is true? A) It contains cellulose and sugars that are involved in communication. B) It is present in animal cells only. C) It is rigid and elastic for supporting
answered Feb 2, 2022
2 votes
69.0k views
Google Docs, MS Word, Google Slides, MS PowerPoint, Google Sheets, MS Excel In your opinion which software in each category is easier to use?
answered Dec 20, 2021
2 votes
21.4k views
What was the most important mathematical contribution and what does the word mean in Arabic?
answered Dec 13, 2021
5 votes
64.1k views
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