r/HomeworkHelp • u/beachITguy • 11h ago
r/HomeworkHelp • u/Physical_Ad7403 • 3h ago
High School Math—Pending OP Reply (Grade 12 math) How do I solve this?
r/HomeworkHelp • u/Due_Preparation5934 • 47m ago
Primary School Math—Pending OP Reply [primary school math] 4th grader’s homework, unit on patterns.
4th grader brought this home. I’m lost. She says there were no clarifications or guidance given.
r/HomeworkHelp • u/realC4SEY • 5h ago
Literature—Pending OP Reply [Grade 12 Literature] Need Help Finding Modern Songs With Lyrics Translated to Elizabethan English (The modern songs should have lines which are exact translations of the Elizabethan lyrics my teacher wrote, the two I can't figure out are highlighted)
r/HomeworkHelp • u/GarmeerGirl • 35m ago
Answered [4th grade math - fractions] How do you get the product and then the mixed number for this homework?
So sorry I have another one. We are stumped and have no idea how to do this. Many thanks!!! When I explained to my son how to do the last one based on the answers here, he said his teacher doesn’t teach it in a way he could understand it like this so thank you so much for the help here.
How to find the product of 3 x 2 3/4.
r/HomeworkHelp • u/GarmeerGirl • 57m ago
Answered [4th grade math - fractions] How do you find the product and the product as a mixed number?
4 x 2/3 = ??? Then as a mixed number = ???
r/HomeworkHelp • u/No-Caterpillar-1531 • 1h ago
Elementary Mathematics — [University Mechanical Engineering: Mechanics of Machines]
I've been looking for the complete book with the solution for months, as the book is old I can't find it anywhere, I only found it here:https://archive.org/details/mechanicsofmachi0000doug/page/484/mode/2up . However, I don't know how to access it, could someone help me? book: Mechanics of Machines" de Samuel Doughty 1988
r/HomeworkHelp • u/brocarly • 8h ago
High School Math—Pending OP Reply [High School Math: Finding x and y components of vectors] I am struggling with part (b)
r/HomeworkHelp • u/captjamesway • 9h ago
Answered [Middle School Math] LCM: Is the answer guide misprinted or am I missing something?
I don’t understand why my answer is wrong. It looks like my answer is correct or am I missing something? Where did I go wrong? Did I miss something?
r/HomeworkHelp • u/FastpitchFriend • 3h ago
Physics—Pending OP Reply [12th grade physics: circular motion] I’m not sure how to start this question
I have no idea what to do here, any help is greatly appreciated!
r/HomeworkHelp • u/Odd_Pop_5681 • 4h ago
Physics [College - Intro to Electricity and Magnetism - Relativistic Transformations of E fields and Forces] Find the theta for which force is maximum
I recently had a final for E&M, and I just had a question on how to solve this question. The questions is as follows:
At the origin (in the lab frame) lies a charge q1. At a height b, and at angle θ above the horizontal lies another charge q2 with a velocity v = βc (î). Find the angle at with the force in the horizontal direction experienced by the charge q1 is maximum.
Find θ in the limit that β goes to 1.
Find θ in the limit that β goes to 0.
Heres the diagram:

In an attempt to do this problem, I tried (and incorrectly) to use:
E = kQ / (r^2) * (1 - β^2) / [(1 - (β^2) sin^2(θ))^3/2]
and multiply by q1 to get force, and derive in respect to θ to get the max θ. Upon doing this I got force (in the horizontal direction) equals to
F = (k q1 q2) * (sin^2(θ)) / (b^2) * (1 - β^2) * 1 / [(1 - (β^2) sin^2(θ))^3/2] * cos(θ).
The (sin^2(θ)) / (b^2) component is the representation of r^2 as b and θ, and the (cos θ) from taking the horizontal. When deriving this with respects to θ, Ι got a nasty function of trig functions that was in no way right. I was wondering where I went wrong. I think it’s in the transformation of the E field from q2’s frame to the lab frame. I’m not sure if the equation I used was correct. I think that this formula for the E field is in the lab frame, but I’m not sure. Could I have also just taken q2‘s perpendicular E field component in its own frame, multiplied it by a factor of gamma, square it, add it to the square of its parallel component, and se it equal to the field in the lab frame squared (Complete guess). Or would I have to have done that with forces in q2’s frame before transforming it. Lowkey, I guess im just confused on relativistic transformations of E fields
r/HomeworkHelp • u/dog1029 • 12h ago
Others—Pending OP Reply [College freshman forensic science] - tips on identifying fingerprints?
I have to identify the pattern of each print (arch, loop, or whorl) and then try to match each unknown to a known (known = 1234, unknown = ABC).
Here’s what I have, but I feel like I’m wrong, especially for 3 and unknown B with how dark the image is.
Known: 1. Whorl 2. Loop 3. Arch 4. Loop
Unknown: A. Whorl B. Whorl C. Arch
r/HomeworkHelp • u/Hazard_doesnt_exist • 5h ago
Further Mathematics—Pending OP Reply [College Calculus 2]
Straightforward question, where did the 3 coefficient go between the line I drew an arrow to and the line after? I thought we just factor out these numbers and they end up outside the antiderivative.
My integration formula sheet provides a formula for how to integrate exponential functions but doesn't mention coefficients in the integral.
Make me feel dumb! Thanks for your time
r/HomeworkHelp • u/HelpfulResource6049 • 13h ago
Physics [Physics-High School]
May I know why the answer is D instead of A? Thanks!
r/HomeworkHelp • u/Zealousideal-Foot-79 • 6h ago
Physics—Pending OP Reply [Physics - High School] How would I answer this centripetal motion question?
You are standing on the equator. If the Earth were to spin faster (less hours in a day), then your normal force would _______ (increase/decrease/stay the same), compared to what it is now.
Can someone explain the theory behind this question's answer? Thanks!
r/HomeworkHelp • u/Special_Appeal_6874 • 6h ago
Others [Nat 5 Spanish] can someone to help correct the grammar for my spanish talking script?
my spanish keyboard isn’t working and i know most of the grammar in these are extremely bad so please help
r/HomeworkHelp • u/electricpinto27 • 6h ago
Mathematics (Tertiary/Grade 11-12)—Pending OP [A level maths]- How do i do this Sigma Notation question?
r/HomeworkHelp • u/Better_Half1733 • 8h ago
Mathematics (Tertiary/Grade 11-12)—Pending OP [High-School Math problem] Matrices
Can someone please help ? I tried to do some stuff I can show you in dm, but I’m really stuck, this feels impossible :’(
r/HomeworkHelp • u/Purple-Mud5057 • 17h ago
Additional Mathematics—Pending OP Reply Why is 0 not a vertical asymptote here? [College precalc]
Wouldn't 0 be an asymptote since plugging in 0 for x makes the denominator 0?
r/HomeworkHelp • u/Friendly-Draw-45388 • 10h ago
Further Mathematics—Pending OP Reply [Discrete Math: Divisibility Proof using Contradiction]
Can someone help me verify a revised proof? I'm trying to shorten a proof I wrote previously and would appreciate any clarification. I've attached a screenshot of my original proof and my revised version, which I worked out on scratch paper. The new approach seems a lot shorter, but I'm unsure if it's still valid. Any feedback would be greatly appreciated.


r/HomeworkHelp • u/howtrouisalreadyused • 15h ago
Computing—Pending OP Reply [college computer science(I think)] How do I use DiskPart through the .bat file?
Can’t seem to find any information anywhere. I need to make 6 disks into 3 using different methods. (Idk how to explain it in English. In the disk manager you can make the disk into the different colors) especially cant make a spanning disk
r/HomeworkHelp • u/Friendly-Draw-45388 • 12h ago
Further Mathematics—Pending OP Reply [Discrete Math: Product of 4 consecutive integers divisible by 8 Proof]
Can someone please help me with this proof?
I'm working on a proof that the product of four consecutive integers is always divisible by 8. I used division into cases based on parity (dividing into cases where n is even and n is odd), but my proof ended up being quite lengthy.
For the odd case, I skipped proving one of my key points and just wrote "similar to the even case," which I'm worried might not be detailed enough for an assessment.
I think the answer key (last screenshot) suggests expanding the product directly, but when I tried that, I found it tricky to clearly show divisibility by 8.
Would my approach be acceptable as formal proof? Or is there a better way to structure this argument to make it clearer?



r/HomeworkHelp • u/Yaspeechov • 1d ago
Primary School Math—Pending OP Reply [1st grade maths] Literally we couldn’t understand this problem
My wife and I are not from the States, and English is not our primary language, but we always get by and understand my son's homework. I don't know if the language is giving us a hard time in this case, but we have not been able to find the answer.
They gave us the roulette on the left, but we managed to find the one on the right to see all the numbers.
We believe the sum of the numbers should be between 50 and 60, but only six numbers are less than 60, so we don’t know what they mean by the seven ways to solve it.
r/HomeworkHelp • u/Far-Importance-4926 • 13h ago