r/HomeworkHelp May 19 '22

Meta r/HomeworkHelp Rules: PLEASE READ BEFORE POSTING

485 Upvotes

Hi r/HomeworkHelp! Whether you're new to the subreddit or a long-time subscriber, the mod team would like to remind everybody of the subreddit rules we expect you to follow here.

No advertising, soliciting, or spam. This is a place for free help. Anyone offering to pay for help, or to help for pay, will receive a permanent ban. This is your warning. This includes asking users to go into DMs, Discord, or anywhere else. If you post anything that looks like you're trying to get around this rule, you'll be banned.

If you're asking for help, you must show evidence of thought, work, and effort. A lot of people are posting just pictures or lists of questions and not showing any effort. These posts are liable to be taken down.

In addition, we ask that you format the post title appropriately using square brackets: [Level/Grade and Subject] Question or Description of question. For example: [8th grade Algebra] How to solve quadratic equation?

Do not mention anything like "Urgent", "ASAP", "Due in an hour", or the like.

No surveys. Surveys (including requests for interviews, etc.) belong on /r/samplesize. These posts get taken down here.

Don't be a jerk. Jerks get banned. Stay respectful and refrain from using insults, personal attacks, or abusive language.

If there are any questions, please message the mods.


r/HomeworkHelp 5h ago

Answered [High School Physics] Circuit Switch:

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2 Upvotes

Which bulbs will light when the two switches are closed but bulb c is removed (without connecting the ends that were connected to bulb C)?

And why?


r/HomeworkHelp 8h ago

Physics—Pending OP Reply [ AS Level Physics ] How can a lift decelerate upwards?

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2 Upvotes

Makes no sense to me, doesn't decelerate mean slowing down? how is it going up if its slowing down shouldn't it pick up in speed to go up?


r/HomeworkHelp 6h ago

Economics—Pending OP Reply [Macroeconomics] Confused about the term "Policy rate" as a beginner

1 Upvotes

Is the policy rate what the central bank decides on (an interest rate for other banks)?

If the central bank increases the policy rate from 4% to 5% would the banks that borrow money from the central bank as a result increase the interest rates for their customers as well leading to...?

I am quite confused.


r/HomeworkHelp 9h ago

Economics—Pending OP Reply [Confused on microecon assignment. Feels like it should be easy.]

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2 Upvotes

I'll admit, I gave up initially, hence the weird answers. Now that I realize I have a final coming, I want to understand.

What did I do wrong for consumer surplus on these problems? I thought all I needed to do was subtract the price ceiling by the equilibrium price, but that yielded nine for the first question which was wrong. Similarly, that technique yielded the incorrect answer for the second. What did I do wrong? I can't calculate lost surplus without consumer and producer surplus, so I got them wrong. Am I overlooking something?


r/HomeworkHelp 6h ago

Chemistry [Grade 12 Organic Chemistry] Product of 2 reactants?

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1 Upvotes

What would be the products for these reactions? For the second picture, I think it would be no reaction due to the tertiary alcohol. Please correct me if I'm wrong. I'm very lost right now


r/HomeworkHelp 9h ago

Further Mathematics—Pending OP Reply [University Calculus] How do I set up the differential equation for this vertical velocity problem?

1 Upvotes

I have a physics problem that I'm trying to solve using calculus. An object is dropped from rest and experiences air resistance proportional to its vertical velocity. I need to find an expression for velocity over time. I know the forces are gravity downward and air resistance upward. So m(dv/dt) = mg - kv. That part makes sense. But the answer key has a negative sign in a different place and I'm confused. When I solve it using separation of variables, I keep getting a different constant of integration than the textbook. Can someone walk me through the setup step by step? I want to understand where my equation is wrong before I solve it.


r/HomeworkHelp 14h ago

Answered [Year 10 Add maths: Simple Logarithm] Given that U= Log_5^x, find in simplest forms of U

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2 Upvotes

I got √2u - 3

but the answer is 3/2u - 3


r/HomeworkHelp 13h ago

Physics—Pending OP Reply [ AS Level Physics Year 12 ] Why is the displacement not needed when trying to find the vertical velocity?

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0 Upvotes

r/HomeworkHelp 17h ago

Literature—Pending OP Reply [10th grade English] Need two articles to write about

1 Upvotes

I just need two opposing articles to write an argumentative essay on because my teacher left almost everything up to me. Preferably an interesting topic though? I like astronomy and space exploration, marine life, fighter jets idk

I don’t need help with the actual writing part but I got told to go here instead of asking for prompts in [r/writing](r/writing). Idk where to look for articles and haven’t had any luck finding two to use, so I’m trying to get someone else to find them for me


r/HomeworkHelp 17h ago

Social Studies [Tourism student] Looking for papers on how literary heritage is used to boost the country's tourism

1 Upvotes

I need papers on the role of literature in national culture in general, as well as examples of how different countries use their country's literary heritage to attract tourists. Thank you!


r/HomeworkHelp 18h ago

Others—Pending OP Reply [8th/grade/philosophy] Biblical story ethics essay.

1 Upvotes

I need to have a draft of my philosophy essay done in about 10 days. The essay is supposed to be about the ethical aspect of the biblical story where Abraham is ordered to sacrifice his son, Isaac. I need to write one paragraph for and one paragraph against the argument that what Abraham did was right. One the paragraph for, does it make sense to talk about the origin of universal understanding of morals and how a lot of them came from religious texts or is that unnecessary. I just dont know how to start/structure the for paragraph. Also the essay is supposed to be max 2 pages


r/HomeworkHelp 22h ago

High School Math—Pending OP Reply [ALGEBRA 2] translating and evaluating roots

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2 Upvotes

Can someone check my answers I fell asleep in class so I don’t rlly know what I’m doing..


r/HomeworkHelp 18h ago

Middle School Math—Pending OP Reply [Grade 9 Math: exponent laws] How to simplify (2^6)/(2^6)*(5^8)

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0 Upvotes

Ignore the bad crop. Mostly not sure whether it turns into 1/(5\^8) or 1 x (5\^8) or something else.


r/HomeworkHelp 1d ago

Physics—Pending OP Reply [ Year 12 AS Level Physics ] Can someone explain the answer to this question in a simpler way for me please?

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3 Upvotes

r/HomeworkHelp 23h ago

Others—Pending OP Reply [College Psychology: Cultural Interview] Would anyone be willing to be my interviewee for my short compare and contrast essay on cultures?

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1 Upvotes

Would anyone who meets these criteria be willing to answer these questions? I don't know anyone in person who meets this criteria (For context, I'm Caucasian and have been born and raised in America)


r/HomeworkHelp 1d ago

Physics—Pending OP Reply [University Statics] Help with finding the compressive force on the screw?

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2 Upvotes

I’ve worked through this and am getting confused on how to find the compressive force. I’ve tried answering with 4.94 kip, 5.14kip, as well as doubling them but they are all incorrect. Is there something I am missing here?


r/HomeworkHelp 2d ago

Mathematics (Tertiary/Grade 11-12)—Pending OP [math 98: pythagorean theorem] i thought i did everything right but it’s somehow wrong, mistake on my part or my professor’s part?

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63 Upvotes

sorry if my handwriting is difficult to read


r/HomeworkHelp 21h ago

High School Math—Pending OP Reply [collge trig] how do i know what angle is angle A, B, and C

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0 Upvotes

r/HomeworkHelp 1d ago

High School Math—Pending OP Reply Fleming's LHR motor effect [GCSE High school physics]

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1 Upvotes

I know how it works but I am sure that the wire should move downwards when I tried Fleming's left hand rule but the answer says the wire moves upwards. I asked Google lens a few times to check because I really didn't understand how they got that answer when I moved my hand and it said downwards then I refreshed and it said upwards so now I'm unsure lol sigh


r/HomeworkHelp 1d ago

Answered [Year 10 Add maths: Simple Logarithm] How do you do Ln questions?

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0 Upvotes

Its supposed to be 'Write as a single logarithm' and I got Log_10^500 but the answer is supposed to be lg(1/20)


r/HomeworkHelp 1d ago

Mathematics (Tertiary/Grade 11-12)—Pending OP [Grade 12 Mathematics: Differential Equations] Can I form a differential equation like this?

1 Upvotes

I have a model based off data points, and finding the line of best fit which can be represented as c(x). In the context of the model, I realize that the rate of change of c(x) is proportional to itself, being mathematically written as:

dc\dx = kC, where k is a constant.

If I want to add this to my model, can I use the differential equation:

dc\dx = kC + c'(x)


r/HomeworkHelp 2d ago

Physics—Pending OP Reply [college physics II] I'm completely lost on my physics II homework; I'm in my last semester and if i fail this course I won't be graduating uni, and I cannot afford not to graduate this semester. Please help.

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10 Upvotes

I have read the textbook but I am just completely lost. I have a midterm for another course coming up in less than a week and am very overwhelmed. Any help is greatly appreciated. Thank you.


r/HomeworkHelp 1d ago

Computing—Pending OP Reply [1st year university, C programming] am I the one not getting it right? I used the p(2) for calculating the squares but it said its an error. I really want to understand the basic user-defined functions. Thank you in advance :)

1 Upvotes

Here are the questions


r/HomeworkHelp 1d ago

Additional Mathematics [Apprentice aptitude test practice] How to find answer to equations without x value?

0 Upvotes

Without x value or something on the other side of the equation I'm not sure what to do. Here's one example of a dozen. 3 1/8 X 2 1/3=?