1. ### Python Finding the day from a given date

The question is as follows : ''Given that January 1st, 2018 is a Saturday, write an algorithm to determine the day of the week for a given date provided as an input. The input to the algorithm should be in the format YYYYMMDD, where March 21st 2018 is written as 20180321'' My issue is as...
2. ### Relative Velocity Of Swimmer

So I was just wondering if someone could check my method for (b) as sometimes I can have a tendency of getting the relative components wrong ect. Diagram 1 (a) Time for PY: ##T=L/c## Time for YP: ##T=L/c## Total Time:##2L/c## (b) Velocity for PY: ##c-v##...
3. ### Relative Density Word Problem

So I am a bit stuck on this question as my result using the above equations dose not give an numerical value which I assume from the question is needed. So here my method for solving My first thought was that if on the planet the person can throw a rock 10 time further then that it implies in...
4. ### Adding Vectors to Find Velocity

Problem: Dr. L and his cat Kepler are coming home from fishing. They ended their trip on the south bank of a river, directly across a 1200 m wide river, from where Caroline was going to pick them up on the north bank. They are in identical boats that can travel at 4 m/s (Vb). The river is...
5. ### I Truth, lie and random confusion

So I am very, very new to logic based questions, and in the past have solved some with relative ease but whilest scrolling through the next to find some example stuff I came across a web site that gives a question and hints to the question if stuck, so I thought this would be good practice. But...
6. ### Shoot a basketball with a minimum speed at some angle

Homework Statement You should shoot a basketball at the angle ##\theta## requiring minimum speed. Avoid line drives and rainbows. Shooting from (0, 0) with the basket at (a, b), minimize ##f(\theta)= 1/(a \sin (\theta) \cos (\theta) -b \cos^2 (\theta))##. (a) If b =0 you are level with the...
7. ### Evaluating an algebraic expression in a word problem | Algebra I | Khan Academy

In this example of evaluating expressions, we're dusting off some geometry. On top of that, it's a word problem. We're seeing how different concepts in math ...
8. ### How much of a 10 liter 30% acid solution must be replaced

Hello! 1. Homework Statement Please, take a look at the problem and at my solution. Have I done it correctly and is my logic correct? How much of a 10 liter 30% acid solution must be replaced with pure acid to obtain 10 liters of a 50% solution? Homework Equations 3. The Attempt at a...
9. ### Tricky word problem?

I'm studying for the ACT and this was one of the practice test problems. The book does offer an explanation for how to get the answer but it isn't very detailed and I still don't know what I'm doing wrong. Homework Statement The larger of two numbers exceeds twice the smaller number by ##8##...
10. ### Recovering MS Word 2010 Document

Hi, I'd been working on a MS Word document for 2 hours when Word crashed. When I restarted Word, all of my changes were GONE. Can anyone tell me how to recover my temporary document? I tried to look at my Windows/Temp folder but I'm on my work computer.
11. ### Distance formula maximization problem

Homework Statement At 9 P.M. an oil tanker traveling west in the ocean at 18 kilometers per hour passes the same spot as a luxury liner that arrived at the same spot at 8 P.M. while traveling north at 23 kilometers per hour. If the "spot" is represented by the origin, find the location of the...
12. ### Word problem two ships departing -- One north the other west...

Question: Two ships leave port at the same time. One travels north at 80 knots (that is, 80 nautical miles per hour), and the other west at 80 knots. The distance between the ships increases at a constant rate. At what rate is the distance between the two ships increasing? The Attempt at a...
13. ### Calculus word problem

Question: Suppose a 15-foot ladder is sliding down a vertical wall, with the bottom of the ladder sliding away from the wall at a rate of 2 feet per minute. Sketch a picture of the situation, with labels x and y indicating horizontal and vertical distances, respectively. Then find the rate at...