Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculating Initial Height for Marble to Roll Along Loop-the-Loop Track
- suspenc3
- · Replies 2 ·
Time that an object is in the air
- Kandy
- · Replies 6 ·
What are the first 3 overtones for a pipe open at both ends?
- Pearce_09
- · Replies 1 ·
Rigid Bodies including topics of power and torque.
- moo5003
- · Replies 4 ·
How Can Angular Velocity Be Expressed as a Function of Theta for a Falling Rod?
- moo5003
- · Replies 2 ·
What is the final temperature of a glass mug filled with hot water?
- jakeowens
- · Replies 3 ·
Angular acceleration of a wheel
- suspenc3
- · Replies 8 ·
Solving for Speed, Height of Boy on Water Slide
- hannsparks
- · Replies 38 ·
Anomalous first point in time vs height graph of falling mass
- Harvey
- · Replies 3 ·
Some more electromagnetism questions (ac generators)
- KatieKangaroo
- · Replies 1 ·
Find the total outward force exerted on the vertical wall
- SoccaCrazy24
- · Replies 8 ·
How Do You Convert RPM to Radians Per Second for a Flywheel?
- suspenc3
- · Replies 11 ·
Simple angular momentum question
- itzela
- · Replies 2 ·
A question for which I *should* know the answer
- ptabor
- · Replies 8 ·
Coefficient of static friction
- hannsparks
- · Replies 5 ·
Pressure inside and outside water in a Bernoulli problem
- willworkforfood
- · Replies 2 ·
Time for a sliding ball to reach rolling without slipping
- Päällikkö
- · Replies 10 ·
Calculating Heat Energy in a Refrigerator - Solving for Qh and Qc
- dekoi
- · Replies 8 ·
My teacher hasnt been in and Im trying to self teach this topic. Can
- KatieKangaroo
- · Replies 1 ·
A bead in circular motion in space
- Lisa...
- · Replies 1 ·
Finding capacitance when parallel cap increases current by 0.23 A
- fizixx
- · Replies 11 ·
Is work relative if it depends on relative motion?
- teken894
- · Replies 8 ·
Circular Motion and Displacement
- brad sue
- · Replies 3 ·
Verification of the kinematics relationship
- alex_boothby
- · Replies 2 ·
How Does a Bullet Passing Through a Block Affect Speed and Energy?
- Memphis213
- · Replies 1 ·
Mars Surface Curvature: 2m/3600m
- touqra
- · Replies 2 ·
Escape Speed Calculation for Identical Planets
- zhen
- · Replies 2 ·
Force needed to pull the string
- anand
- · Replies 1 ·
How can an athlete stop twisting in mid-air using angular momentum?
- Winner
- · Replies 10 ·
Use mercury barometer to fing height of building
- stuplato
- · Replies 1 ·
Finding food calories used to climb a rope
- KatParker35
- · Replies 4 ·
What is the acceleration of the balloon and instruments?
- vinny380
- · Replies 1 ·
How to Calculate Positions of Observers Using Lorentz Transformation
- mrjeffy321
- · Replies 3 ·
Converting Planck's Constant for Energy Unit Matching
- Erwin Schrodinger
- · Replies 2 ·
Calcuating the integral E.ds for the paths given, what did i do wrong?
- mr_coffee
- · Replies 5 ·
What would an Ideal Volt Meter measure if
- tmb
- · Replies 5 ·
How Do You Derive the Moment of Inertia for a Film Projection Wheel with Holes?
- leospyder
- · Replies 8 ·
Question involving Uncertainty Principle.
- brat-sampson
- · Replies 2 ·
Question regarding change in internal energy
- erik-the-red
- · Replies 3 ·
Ball on string catches peg and leaves circular path
- chuxingli
- · Replies 10 ·
Simple Harmonic Motion acceleration problem
- NutriGrainKiller
- · Replies 4 ·
Find the coefficient of kinetic friction between the crate and the surface
- hannsparks
- · Replies 4 ·
Elastic collision between two sleds on air-cushion track
- Pytagoras
- · Replies 1 ·
Physics Help: Calculating Speed for a Sled Collision Test Tomorrow
- Pytagoras
- · Replies 4 ·
Will a Rolling Ball on a Level Surface Ever Stop?
- Euclid
- · Replies 5 ·
Spring, Amplitude and Acceleration
- dukkie
- · Replies 20 ·
Electric potential and electric potential energy question
- firebug
- · Replies 1 ·
Car Crash Scenario Math: Is 114285 Pa Too High?
- Frank_Horrigan
- · Replies 3 ·
Negative Angular Velocity: Is It a Change in Direction?
- NotaPhysicsMan
- · Replies 3 ·
Torque and angular acceleration on a high bar at 30-degree intervals
- NotaPhysicsMan
- · Replies 16 ·
Volume expansion problem wheres initial volume?
- Dantes
- · Replies 2 ·
Solve F for 400N Post on 36.9° Rope
- marialo
- · Replies 1 ·
Force between two blocks pushed and pulled in opposite directions
- suddendeath87
- · Replies 2 ·
Torque and center of mass question
- ktpr2
- · Replies 4 ·
How Do You Calculate Motorcycle Speed Using the Doppler Effect?
- dustybray
- · Replies 1 ·
What Calculations Determine the Dynamics of a Ball in Vertical Circular Motion?
- thugg
- · Replies 1 ·
How can I use this applet to find the wavelength of a sound wave?
- jakeowens
- · Replies 1 ·
Probability distribution of the momentum value p
- NEWO
- · Replies 2 ·
Centripetal acceleration on a grinding wheel
- physics_ash82
- · Replies 4 ·
A Difficult Mechanics Problem (Work-Energy?)
- chaose
- · Replies 5 ·
Why do objects of different weights fall at the same rate?
- khizman
- · Replies 2 ·
Angular Velocity Calculation for a Ballistic Cylinder with a Fired Bullet
- Punchlinegirl
- · Replies 4 ·
Why Is My Wavelength Calculation Incorrect?
- lw11011
- · Replies 1 ·
Maximum elevator acceleration with cable stress limit
- ovoleg
- · Replies 2 ·
Why did I get the wrong answer?
- dukkie
- · Replies 2 ·
Sound wave pressure amplitude, wavelength and frequency
- Seiya
- · Replies 2 ·
What is the Angular Momentum After a Totally Inelastic Collision?
- jalapenojam
- · Replies 9 ·
Solve Spring Equilibrium Problem: (a) & (b) w/ Friction
- cgotu2
- · Replies 4 ·
Why is the amplitude u in the wave equation a vector?
- PhiJ
- · Replies 13 ·
Can an Object Move in a Circular Path Without Being Accelerated?
- Equilibrium
- · Replies 1 ·
Conservation of angular momentum on a frictionless table
- Punchlinegirl
- · Replies 17 ·
Question on Diffraction and interference.
- brat-sampson
- · Replies 1 ·
Car turning at 20 m radius with pendulum deflecting 37 degrees
- Werg22
- · Replies 6 ·
Wires Magnetic field question
- meadow
- · Replies 2 ·
Specific Heat of aluminum Problem
- noboost4you
- · Replies 5 ·
Finding the point where gravitational forces balance between two bodies
- InstaGaeta
- · Replies 1 ·
Double Slit Problem: Solve for D2-D1 with 500nm Wavelength
- knox_122
- · Replies 1 ·
Work problem of person pushing box
- jacy
- · Replies 17 ·
How can I use math to calculate the distance of a trebuchet-launched projectile?
- whatzzupboy
- · Replies 2 ·
Is Ffr=ma=m(v^2/r) Correct for Given Values?
- nrc_8706
- · Replies 9 ·
Force on pail bottom when rotating at minimum speed in vertical circle
- nrc_8706
- · Replies 11 ·
Spherical fish buoyancy and fluid dynamics calculations
- stuplato
- · Replies 10 ·
How Does Wind Affect the Forces on a Hanging Spider?
- DB
- · Replies 8 ·
What Are Some Interesting Grade 11 Physics Article Topics?
- Mark_P
- · Replies 3 ·
Why are clockwise and counterclockwise called senses in torque?
- Trista
- · Replies 3 ·
What is the Amplitude of a Mass-Spring System?
- dukkie
- · Replies 2 ·
What is the emf induced in the looop?
- mr_coffee
- · Replies 3 ·
How Do You Calculate the Force of a Falling Book on the Floor?
- drod
- · Replies 6 ·
What is the relationship between mass and velocity in orbits?
- Dooga Blackrazor
- · Replies 2 ·
Racing car centripetal force problem
- nrc_8706
- · Replies 2 ·
Evidence for and against the moon landings for a grade 11 physics assignment
- Mceestix
- · Replies 11 ·
Solving Relativity and Decay Problems
- Inconsistency
- · Replies 3 ·
How High Could an Athlete Jump on Mars Compared to Earth?
- brad sue
- · Replies 1 ·
Understanding Elastic and Head-On Collisions: What's the Difference?
- gunblaze
- · Replies 2 ·
How Does Doppler Effect Influence Perceived Sound Frequency?
- frozen7
- · Replies 1 ·
The classically forbidden region
- NEWO
- · Replies 3 ·
Why does water evaporate even below its boiling point?
- dyiu9632
- · Replies 1 ·
Coefficient of static friction for a ladder with Romeo climbing it
- ViewtifulBeau
- · Replies 2 ·
Four problems: falling bucket, blade on rails, painter on dome, car skid marks
- ForKeli
- · Replies 4 ·