Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Is it harder to swim in blood than in water?
- Saska
- · Replies 1 ·
Calculating Velocity of River and Boat
- tregeat
- · Replies 6 ·
How Do You Calculate the Speed of a Ball in Rotational Motion?
- crispy_nine
- · Replies 3 ·
Mastering physics answers wrong
- jcksn34
- · Replies 5 ·
Oscillation Motion Frequency: Spring & Block
- SCI2007
- · Replies 1 ·
Can equations have more than one side to them?
- mujadeo
- · Replies 1 ·
Ballistic Motion using Newton's Laws
- JeYo
- · Replies 1 ·
Tug-of-War on an Icy Surface: Peter vs. John & Sarah
- nblu
- · Replies 14 ·
Rotational Motion relationship between 2 disks
- gills
- · Replies 16 ·
How can I calculate the moment of inertia for a rod bent into a square shape?
- S[e^x]=f(u)^n
- · Replies 2 ·
Equilibrium of a particle - hibbeler , help please
- dumbengineer
- · Replies 3 ·
Finding Friction: Check My Work for Mistakes
- missashley
- · Replies 2 ·
Solving Linear Momentum in Boxcar A and Flatcar B Collision
- bungie77
- · Replies 8 ·
Throwing a Javelin (Projectile Motion)
- TopCat
- · Replies 4 ·
Coplanar equilibrium (mechanics)
- kring_c14
- · Replies 7 ·
The coservation of energy principle
- AvrGang
- · Replies 15 ·
Finding Maximum and Minimum Energy of Electron in Particle Disintegration
- Tolya
- · Replies 5 ·
Find the one dimensional particle motion in a given potential
- Fallen Seraph
- · Replies 3 ·
So the position of the mass 3.760 s after it is released is 0.108 m.
- delecticious
- · Replies 7 ·
Gravitational question (spacecraft)
- ccsmarty
- · Replies 3 ·
Mass & Motion: KE, Momentum, & Constant Mass
- Gear300
- · Replies 4 ·
Tension in a string swinging a rock.
- pinkyjoshi65
- · Replies 37 ·
Thermodynamics: Amount of work required to increase pressure at constant volume
- Bill Foster
- · Replies 6 ·
Calculating Speed Needed to Pass Traffic Light at 15 m/s
- rhxoehwhfh
- · Replies 14 ·
Want help regarding my classical mechanics assignment
- Dr.Brain
- · Replies 1 ·
Angular Acceleration for Angular Pressure of 1.5atm
- fatcat39
- · Replies 1 ·
Net Torque magnitude and direction
- Heat
- · Replies 6 ·
6 Problems on Rotational Dynamics
- chavic
- · Replies 2 ·
How Do Fish Adjust Their Buoyancy with Air Sacs?
- Saladsamurai
- · Replies 15 ·
Finding Angular Acceleration of a spool.
- Mr. Sinister
- · Replies 2 ·
How Does Temperature Affect the RMS Speed of Helium Atoms?
- BuBbLeS01
- · Replies 1 ·
Finding rotational inertia from tangential force and angular acceleration
- Mr. Sinister
- · Replies 11 ·
Where Is the Center of Mass in a Plate with an Off-Center Hole?
- sweatband
- · Replies 2 ·
What is the Applied Force Needed to Accelerate a Curling Stone on Ice?
- vince_lu
- · Replies 8 ·
Solving Mass m2 Acceleration on a 30° Slope
- temaire
- · Replies 1 ·
Solving for Time Taken to Slide Down Roof
- Vanessa23
- · Replies 1 ·
Solving a Pulley System: Friction, Tension & Acceleration
- bungie77
- · Replies 5 ·
Solving Physics Project: Initial Velocity of Dart?
- Crupler22
- · Replies 4 ·
Box-Spring Collision: How Much Compression?
- 1stimer
- · Replies 2 ·
Simple harmonic motion and frequency
- ttk3
- · Replies 3 ·
What Do You Use to Secure Masses in a Young's Modulus Experiment?
- lonny_luner
- · Replies 7 ·
Calculate Torque at Point O due to Force F
- Heat
- · Replies 5 ·
Magnitude of the Torque generated at Pivot Point.
- Mr. Sinister
- · Replies 4 ·
Help with drawing gradients along error bars
- Crazyevox
- · Replies 1 ·
What can we determine about the electric field lines from two charges Q1 and Q2?
- jra_1574
- · Replies 4 ·
Calculating Energy Stored in a Spring
- aligass2004
- · Replies 11 ·
Solving for Torque and Angular Speed in an Engine
- Heat
- · Replies 2 ·
How Is the Center of Mass Calculated for Two Point-Like Blocks?
- sweatband
- · Replies 9 ·
How Do You Calculate the Damping Coefficient in a Spring-Oscillation System?
- Goldenwind
- · Replies 1 ·
Special Theory of Relativity(discussion question)
- BatmanACC
- · Replies 1 ·
Stress in rope with pulley and weight
- Dearster
- · Replies 3 ·
Formula for time to distance from stop
- jph
- · Replies 6 ·
Electric Potential of two charges
- JFonseka
- · Replies 8 ·
Is a Bouncing Ball an Example of an Elastic Collision?
- Oliviam12
- · Replies 1 ·
AP Mechanics DiffEQ: Restoring Torque & Angular Acceleration
- turdferguson
- · Replies 3 ·
What is the time it takes for two charges to meet?
- FalcorTheDog
- · Replies 2 ·
How do I solve torque-related problems involving multiple forces?
- Romanian
- · Replies 4 ·
What is the Minimum Horizontal Velocity for a Safe Dive from a 61m High Cliff?
- Larrytsai
- · Replies 1 ·
Rocket propulsion fuel velocity
- jack1234
- · Replies 1 ·
Rocket's Speed After Ignition & w/o Spring Tied Down
- kayleech
- · Replies 7 ·
Calculating Velocity of Object in Air: 5 secs No Air Resistance
- brendonnn
- · Replies 7 ·
Calculating Velocity of a Plane
- bungie77
- · Replies 8 ·
Moving object acquiring mass on a frictionless surface
- Terp
- · Replies 13 ·
Circular Motion- Just a few quick questions
- alex7298
- · Replies 3 ·
Acceleration of hollow sphere rolling down table.
- Bob Loblaw
- · Replies 3 ·
Calculating Time for Ball Rolling Off a Roof
- Vanessa23
- · Replies 12 ·
1g object absorbing 632nm photons to reach 1mm/s
- Glass
- · Replies 3 ·
2 identical capacitors, given potential in joules
- jendead
- · Replies 10 ·
Analyzing Block & Spring Compression: F = -kx & W = -0.5kx^2
- Pavel1989
- · Replies 2 ·
Potential difference across capacitors, can someone check this?
- JFonseka
- · Replies 1 ·
How High Will the Toboggan Go on a Frictionless Hill?
- stylez
- · Replies 5 ·
Calculating Work, Force, and Power in Bob's Rock Throw
- aligass2004
- · Replies 4 ·
Conceptual - Mass, Period, Spring Constant
- sheri1987
- · Replies 1 ·
Solving the Mystery of Drop Out Ride: Find Rev/s Needed for Floor Drop Out
- habs.fan
- · Replies 3 ·
Where Is the Center of Mass for Three Aligned Meter Sticks?
- diva8789
- · Replies 1 ·
Collisions thought i was doing it right?
- quickclick330
- · Replies 3 ·
Circular motion of a road curve
- 2RIP
- · Replies 5 ·
Rotational Equilibrium of metal bar
- fatcat39
- · Replies 10 ·
Non-Uniform Circular Motion of car
- 2RIP
- · Replies 3 ·
Find Maximum Height, Time, and Duration.
- petern
- · Replies 6 ·
Calculating Speed in Special Relativity: A Grade 12 Physics Problem
- BatmanACC
- · Replies 3 ·
Finding average acceleration from data points of a velocity time graph?
- TexasCow
- · Replies 2 ·
Cant understand Gaussian surface
- mujadeo
- · Replies 2 ·
Friction and horizontal movement
- MissKaylaPaige
- · Replies 11 ·
Finding Frictional Force and Time to Stop a Spinning Disk
- Destrio
- · Replies 2 ·
How Fast Should the Centrifuge Spin to Separate Red Blood Cells?
- starfish794
- · Replies 2 ·
In a Force vs Distance graph, is work the area underneath?
- carmenn
- · Replies 4 ·
Calculating Work and Forces on a Sliding Piano
- VanKwisH
- · Replies 6 ·
Finding the Velocity of a Bullet Inside the Barrel
- Br0kenS0cial
- · Replies 4 ·
Comparing Earth's Orbital & Rotational Periods
- JohnJay
- · Replies 4 ·
A Grade 11 Waves - Frequency-Movement Problem
- incognito301
- · Replies 1 ·
How can area be a vector? (flux equation)
- mujadeo
- · Replies 1 ·
How Do Newton's Laws Apply to a 5 kg and 6 kg Block on a 45-Degree Ramp?
- pinkyjoshi65
- · Replies 9 ·
Solve Tension & Torque for Max Distance x
- Destrio
- · Replies 1 ·
How to Solve Projectile Motion of a Stone Thrown at 30 Degrees Below Horizontal?
- psych
- · Replies 1 ·
What is the correct way to solve this problem?
- TonkaQD4
- · Replies 13 ·
How Is Acceleration Calculated When a Bureau Starts Moving on a Rough Surface?
- grouchy
- · Replies 7 ·
Where the total electric field is equal to zero?
- barrett
- · Replies 2 ·
Velocity, Acceleration and Distance
- clipperdude21
- · Replies 1 ·