Beginner physics — 24 discussions

Hi, I am a first year college student who is currently taking intro to physics course. With the way this course is designed, it is definitely not beginner friendly as I took physics for two years straight in high school and is still a little confused. To add to injury, I also just bombed my...

I tried solving this and realized that I have no idea what r2 is and I can't just insert an equation there

I am looking for a book that teaches the basics of physics that is easy to understand and good for self teaching. Any good suggestions?

Hi there, I’m looking for beginner to advanced physics textbook. The books doesn’t have to be by only one author or series of volumes. I’m in year 9 at the moment (australia) and really want to learn further than what the curriculum provides. I’ve got the feynman’s lectures on physics, so any...

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I'm in high school and would like to write a paper on physics for fun, any topic suggestions?

Problem : A car of mass ##m## is parked on a slope. What does static friction ##\mu_s## have to be for the car not to slide down if the incline of the hill is ##30## degrees? ******* For this problem I have the following forces, where the hill is inclined upwards to the right: Upwards ...

Hello. I'm LizBitLadyBug. Looking forwards to learning all I can here. I'm a little rusty but I'm determined to understand Physics and successfully pass this class - round 1 of 3 I think?

My name is Apoorv, a 20 year old male from India who is fascinated with science but get out of touch with busy schedules. In my work I am not able to find many people ready to discuss some physics. So, here I am wanting to start some discussion to give my POV on things and to listen. Learning...

Hi folks, apologies if this is in the wrong forum. I'm a new undergrad physics student and I'm having trouble figuring out how to 'do' error analysis. (I had a quick look through some similar posts here & am still none the wiser.) I'll use my recent lab experiment on Resonance in a Tube as an...

Can't see where I'm going wrong here - would greatly appreciate if anyone can point it out! I've gotten the other parts of the question right, so I know that: ω = 125.66 rad/s A = 2.50 * 10-3m k = 3.49 rad/m The wave is moving in the +x direction. The general equation for the position of a...

This is a really basic problem but the answers I've gotten don't match up with the back of the book. I've been over it several times & can't understand where I'm going wrong - any pointers would be much appreciated! 1. Homework Statement A physics book slides off a horizontal tabletop with a...

How do I know what formula to use?? I'm getting confused. Kinematics formulas Thank you

Done.

[b]1. Ok, hi everyone, I'm new to the forum. I'm hoping you can help me a bit because I'm in trouble now, and a few concepts need clearing up. Ok, so there are two questions #1 A ball is rolled off a table 1 meter high, and lands 4 meters away. what is the velocity for the x vector? What is...

Homework Statement A rigid, perfectly insulated container has a membrane dividing its volume in half. One side contains a gas at an absolute temperature To and pressure Po, while the other half is completely empty. Suddenly a small hole develops in the membrane, allowing the gas to leak out...

Homework Statement a motorist is driving at 20m/s when she sees that a traffic light 200m ahead had just turned red. she knows that this light stays red for 15s, and she wants to reach the light just as it turns green again. it takes her 1.0s to stop on the brakes and begin slowing. what is...

[SOLVED] Very beginner physics 1D motion question! Homework Statement Two cars move in opposite directions toward each other on a level, straight, one-lane road. When both drivers begin to brake, their front bumpers are 275 meters apart. The smaller car is initially moving at 25.0 m/s and the...

Book says that velocitys must have speed AND direction. going down or to the left on your coordinates, is negative. So if I am walking left along the x-axis at 2m/s, my velocity is -2m/s But If I walk down along the y-axis will I also have a neg velocity? If so, then what is my velocity...

A few beginner physics questions~~ I just started taking Physics and I am already getting stumped on what seem to be the easiest questions... heres a few: 1. A bullet goes 750 km/hr and hits its target 2.0 seconds later. How far away is the target? (Look at the units) What I did...

Homework Statement 1. A couch with a mass of 1x10^2 kg is placed on an adjustable ramp connected to a truck. As one end of the ramp is raised, the couch begins to move downward. If the couch slides down the ramp with an acceleration of 0.70 m/s^2 when the ramp angle is 25 degrees, what is...

1Dim. Physics question I'm in my 3rd weeks of physics, so I'm dealing with Kinematic Equations. My question is: A train accelerates from an initial velocity of 25.0 km/hr to a final vel. of 65.0km/h in 8.5 seconds..Find its acceleration and the distance the train travels during this time...

Hello, I am searching for beginner physics books that won't break the bank. I am very interested in astrophysics at the moment. Only problem is, I don't know much calculus. Thanks for the help in advance. With best wishes, Chris

Well, I avoided this class as long as I could... and now I am stuck with it! I am in a beginner class, but the course is way too fast, and I can't figure out what the teacher is talking about. We are dealing with graphs and 'Straight Line Motion' right now, and I am so lost. I have a test...