# Search results

1. ### Programs Changing my major, not sure which physics to take?

Hello everyone, After long deliberation I decided that my major isn't for me, I would rather do Chemical Engineering. I have taken Algebra Physics I and II and gotten A's in both. I have the option of taking General Physics I or Honors Physics I. General Physics I is a calculus-based...
2. ### Conceptual Question Dealing with Confidence Intervals

Homework Statement 1.) When we collect more data for our confidence interval (A) Confidence Increases (B) Confidence Decreases (C) n decreases (D) The length of the interval decreases (E) The length of the interval increases 2.) We wish to determine a confidence interval for the population...
3. ### Analytical Problem with Coulomb's Law

Homework Statement Consider a parallel universe where the laws of nature as we know them are different, and aqueous solutions can have an excess charge. Two beakers are separated 1.20 meters and each contains 0.300 L of an aqueous solution of 6.40 × 10-6 M excess charge. One beaker has a net...
4. ### Stumped on a Molarity problem

Homework Statement Calculate the molarity of a solution made by adding 35.5 mL of concentrated ammonia (28.0 % by mass, density 0.880 g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 250 mL of solution. (It is important to add concentrated acid or base...
5. ### Deeper learning in Physiology?

I have no idea where to post this, but I figured this is the most relevant place. I'm sorry if it's in the wrong section. I am a Pharmacology and Toxicology major at a large state school. I was only required to take physics I and II. (algebra based) At first I thought that was fine, but I...
6. ### Atwood Machine Problem

1. A 77.00 Nt object (denoted as object 1) rests on the ground. A light cord is connected to this object which runs vertically upward over a light frictionless pulley and is attached to another object denoted as object 2. a) Calculate the force that the ground exerts on object 1 if object 2 is...
7. ### Two vehicles moving in opposite directions bonus problem

Homework Statement Vehicle A and Vehicle B are moving in opposite directions on the NJTP. Vehicle A is heading south toward atlantic city while vehicle B is heading north towards Hoboken. In situation 1 and 2 described below, at t = 0s both vehicles are at a distance of separation of 400m...
8. ### Extra Credit Question for my class, I don't think I did it correctly.

1. Vehicle A and Vehicle B are moving in opposite directions on the NJTP. Vehicle A is heading south toward atlantic city while vehicle B is heading north towards Hoboken. In situation 1 and 2 described below, at t = 0s both vehicles are at a distance of separation of 400m and are moving...
9. ### I'm not sure how they got this answer

Homework Statement I'm not sure how they arrived at that number, or how they "scaled it." Thanks!