Homework Help

My homework is self-inflicted as I exited Physics in 1964 . Weight of 1kg is a force of 10 Newtons and dropping 1kg 5meters for 1 second makes 10 Newtons which stretches the credibility. Anyway , I'm replicating a force of .5kg at 40 meters /sec velocity which may well be 20 Newtons, who knows. It seems that 2kg at rest is also 20 Newtons . Anyone know an equation for Newtons at rest as gravity force?

Ok so I've been working on this problem for what seems like forever now and I can't get it. Can someone PLEASE help me?! It has a picture of a flask that has a bulb on each end, these two bulbs are connected. Question: Consider the flasks in the following diagram. What are the final partial pressures of H2 and N2 after the stopcock between the two flasks is opened? (Assume the final volume in 3.00L) What is the total pressure in torr? One side of the bulb is H2 and it has 2.0L H2 and 475 torr. The other side is N2 and has 1.0L N2 and .200 atm. Please someone help me!!!!! This is due tomorrow and I have no clue how to work this out, I've tried everything …

Hi im sorry i dont know if this is the correct forum to ask this question in but here it is:I need to calculate the riboflavin content for a solution. It was made from 1 vitamin tablet dissolved in 20ml of water. Then the solution was made up to 100ml with neutral buffer. Then a 1:50 dilution was made with the solution. The concentration of riboflavin in the 1:50 solution was 86 μg/L. I need to know the riboflavin content in the tablet, in mg. Could anyone be kind enough to help me with this please. Here is what i have done for this. I am not very confident in it and im afraid that it may be incorrect. 1 tablet in 20ml > made to 100 ml > 1 i…

1. The problem statement, all variables and given/known data Fill-in with the correct tank letter or the condition (eg. PPM of O2) Refer to above Chart A: __1. Which tank contained the lowest PPM of Oxygen? __2. Which of the 4 abiotic conditions(02, C02, PH, or Temperature) is most out of line in tank...A-G? __3. Which tank has a reading out of line with expected PH? __4. Which tank has a reading out of line with expected temperature? 2. The attempt at a solution Question 2 I have B or F but can't tell which is the more appropriate answer? The B tank's conditions don't line up with its expected results in comparison to the left …

I was given a scenario in which a woman is heterozygous for the deafness gene, her husband also being heterozygous. I was asked to complete a punnett square, in which I used D for the deafness gene and d for the hearing gene, and I got DD, Dd, Dd and dd, so from that I figured that there's a 75% chance of carrying the deafness gene, 25% of the child being deaf and 25% of the child being able to hear. Assuming the woman had another child, I was supposed to give the probability of her having two deaf children in a row, and I thought that would still be 25%, thought something tells me I am extremely wrong. Finally, I'm supposed to give the probability of the woman …

Can someone figure out this question, i got it wrong on my exam and want to make sure how to do it before the finals. Thanks The question is asking for the full IUPAC name, including the R and S designature for the following compound

Hello so I am having an issue with rectifying the math for this problem. I have the answer that my teacher gave me which is the answer specific to my lab but on my own I can not prove the math to be correct. I actually cant even get a number at all my calculator is giving me a constant error. Background on the problem: Car attached to a string with a mass suspended on it passes through a photo-gate connected to a smart timer which reads the acceleration. These trials are performed on an incline ramp which has an unknown angle of incline. This is the problem we want to figure out besides tension and all that we want to determine what the angle of the incline …

Hello, I am working on a potentiometric titration lab for a diprotic phosphoric acid. Attached is the excel document of my lab. We are diluting 1.022 M NaOH by a factor of 5 and then using it to titrate with 25 ml 0.06M Phosphoric acid in a beaker. I know my titration curve is correct, however my TA told me that the scaling of my x-axis is wrong for my first and second derivative curves. I know that I need to use the average volume. I also know that I take must take the raw volumes and correct for the initial reading in order to find the average, but I am not exactly where I am going wrong. What I am doing is taking the second volume and adding it t…

Kindly help me. I'm in gr10 and I have a test coming up soon, and I understand everything aside from the Coriolis. One thing I don't understand is how does Coriolis affect climate? I searched it up online, but can't find any simple, easy to understand answer. Second thing, how does Coriolis affect plants and animals? Kindly help me understand these concepts in a simple way. Thanks

What is f(x) − f(x + 2) if f(x + 1) = x(x + 2)?

I found a problem, I just like to check it. Question: From 8 total ingredients, (ham being one)- what's the probability of choosing a sandwich with ham? My solution: 27/28 = 128/256 = 1/2

https://www.google.ie/imgres?imgurl=https%3A%2F%2Fi.stack.imgur.com%2FiGT6a.jpg&imgrefurl=https%3A%2F%2Fphysics.stackexchange.com%2Fquestions%2F3009%2Fhow-exactly-does-curved-space-time-describe-the-force-of-gravity&docid=FNB641e0gGK45M&tbnid=PbJ8EF-vi9eU2M%3A&vet=10ahUKEwjXuuC9t_LWAhVSaFAKHfP5CksQMwg2KBAwEA..i&w=600&h=458&hl=en&bih=769&biw=1600&q=earth curved space&ved=0ahUKEwjXuuC9t_LWAhVSaFAKHfP5CksQMwg2KBAwEA&iact=mrc&uact=8 These grid lines are shown as curved around the massive object that is the Earth. I appreciate that they are an attempt to show 4D and so this picture is non representative (very…

Hi everyone, So, I have this subject at University called Work and Organizational Psychology, and in order to be graded, I need to make a presentation about Micropolitics. Here comes the issues. Every time I search for the definition of micropolitics it shows as: The use of formal and informal power by individuals and groups to achieve their goals within organizations, as opposed to macropolitics. Which sounds very interesting indeed. The problem is when I take a look at some books to support my research, it seems to talk about something totally different. Now I am really confused, what should I talk about? What should I mention? Which definition does micro…

Kindly help with the following questions 1. Suppose that we have to distribute n indistinguishable apples between k dis- tinguishable baskets. How many ways can we do that? Please explain your answer. Provide solution to the question assuming that there are more apples than baskets and no basket is empty. 2. Suppose a social network contains a number of people, each of whom has one of two “opinions” (e.g. a preference for Mac versus PC). Each person is connected with a set of “friends”, some of the other people in the network. You can choose any person in the network and let them see the opinions of their friends, and if most of the friends have the same opinion,…

Hey, I've been stuck on this problem for quite some time: J = ∫0 ->4 ∫ sqrt(x) -> 2 (1 + y^2 * cos(x * sqrt(y))) dydx The cos (x * sqrt(y)) is the one causing trouble. I can't seem to find a way to integrate this. I even tried to turn it to polar coordinates but nothing seems to work. What am I doing wrong? Could someone point me in the right direction? Thanks in advance. PS: Sorry for my english, it's not my native language.

Hey, I've been stuck on this problem for quite some time: J = ∫0 ->4 ∫ sqrt(x) -> 2 (1 + y^2 * cos(x * sqrt(y))) dydx The cos (x * sqrt(y)) is the one causing trouble. I can't seem to find a way to integrate this. I even tried to turn it to polar coordinates but nothing seems to work. What am I doing wrong? Could someone point me in the right direction? Another thing I don't understand with multiple integrals : How do you know if it represents a Volume? Thanks in advance. PS: Sorry for my english, it's not my native language.

Hi, can somebody please help me with these two questions? 1)Suppose a social network contains a number of people, each of whom has one of two “opinions” (e.g. a preference for Mac versus PC). Each person is connected with a set of “friends”, some of the other people in the network. You can choose any person in the network and let them see the opinions of their friends, and if most of the friends have the same opinion, then the chosen person will change their opinion to the one shared by the majority of their friends. If there’s an equal split, you can choose their opinion. Assuming the network is connected, can we always find a sequence of people so as t…

As a part of my thesis research, I need to mention what are the reasons that make it uneasy for humans to talk/think about sex. Why is the topic usually provoking stronger reactions (both positive and negative as well as personal and outer) than e.g. weather. I have found academic materials that state that sex reminds us of our corporeal animal nature and it provokes the fear of death, while we prefer to manage that terror by clinging to a symbolic cultural view of reality. But I don't think this is all. I can imagine there is some term that investigates the problematics of sex as a topic in human's mind. I tried to find something on google scholar, but I wasn't suc…

Hey, I´m new in this forum and hope, someone can help me with a question from Biochemistry. " Isoelectric point of pepsin is about 2. Is this because of higher contents of: Glu , Lys , Asp , Asn , His. Underline correctly and explain" I have no idea unfortunately.

Ok so so far I have not struggled with the elevator problems however, the one on the test I was a little off in my method and couldn't get the answer. The question is something like: An elevator has a cable with the max force of 16,000N, the mass of the elevator is 1200kg (a)what is the maximum mass of the passengers if the elevator is at rest (this part I got, I think)? (b) What is the max capacity if the elevator is moving at a constant v of 4m/s (c) what is the max capacity if the elevator is accelerating up at 1.4m/s^2? I got the same answer for (a) & (b) which was approximately 435kg for (c) I got something like .85 which I the…

Hello, I had started a science fair project and bought all the needed materials to conduct the project. https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p028/physics/measuring-sugar-content-of-a-liquid-with-a-laser-pointer#summary However, i've been trying to think of something unique, a twist, to add to the experiment. Been brainstorming for a while now and I can't think of anything, any ideas? Thanks!

I need help filling in the values for [HCl] (M) - USED (for both parts) and [HCl} (M) - STOCK (for part 1) More specifically I need to know the equations and the inputs (like the area in the fx writing space) that would result in my average, standard deviation, and RSD % resulting in numbers that would match the blue boxes.

hi guys! silly question, but I need some clarification on the topic: for a cancer-based dissertation, do I need to come up with something that has never been done before? or can i just base my thesis on previous and similar articles? hope that makes sense. thank you

Dear all, Currently am trying to build ultra light helicopter for crops dusting but due to financial status, I want to use sport motor cycle engine, 180KPH, engine weight is 55kgs. Please advise if this will work well or any one had the same experience.

Hello, I would greatly appreciate if someone could look over my answers to see if there is something that is incorrect. This isn't homework my course is based entirely on exams. I just want to make sure I'm on the right track . Thank you in advance!!