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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Work-kinetic energy theorem - model rocket velocity/height
- MonkeyDLuffy
- · Replies 6 ·
Grounded electric circuit analysis
- Gbox
- · Replies 4 ·
Object Suspended by Two Strings (Tension Problem)
- A R
- · Replies 1 ·
Differential equation for darkness decreasing with distance from a candle
- abhijath
- · Replies 9 ·
Solving Characteristic Frequencies of Coupled Mass-Spring System
- BOAS
- · Replies 10 ·
What is the Final Temperature of the Mixture?
- Brian13
- · Replies 1 ·
Is energy conserved in an object sliding down an inclined plane on ice?
- motleycat
- · Replies 2 ·
Why doesn't a squirrel reach terminal velocity in a 5 m fall?
- Jazz
- · Replies 13 ·
Calculating Distance and Time Using Constant Velocity
- killaI9BI
- · Replies 17 ·
Could a positively charged electron and negatively charged proton form an atom?
- motleycat
- · Replies 6 ·
Meaning of y-int. on graph of acceleration vs. hanging mass
- vetgirl1990
- · Replies 8 ·
How Do Bar Magnets Create Zero Magnetic Field at Point P?
- motleycat
- · Replies 4 ·
Radioactive Decay Chernobyl reactor accident
- Badger4710
- · Replies 1 ·
Velocity when falling into planet
- Alettix
- · Replies 16 ·
Maximum height of football kicked at 38° with 27.1 m/s
- Olivia Carey
- · Replies 5 ·
How to Solve for missing mass in a Atwood's Machine?
- Not a Wrench
- · Replies 6 ·
Ratio of atoms in different laser levels
- Jon.G
- · Replies 1 ·
Block on a spring on a horizontal surface with friction?
- lilmulla
- · Replies 9 ·
Solve Parabolic Motion Problem: Jet of Water from Fire Hose
- PhoenixWright
- · Replies 4 ·
How Does a Car's Velocity Change When It Moves Down an Inclined Plane?
- kaspis245
- · Replies 22 ·
Total Impulse of/on a block pushed along a surface for 10s
- Ocata
- · Replies 27 ·
Calculating mass given maximum tension of a rope
- RohanTalkad
- · Replies 6 ·
Required Torque for Wheel at 8.17 m/s^2 Acceleration
- Torunn
- · Replies 27 ·
Spring-launched carts with different masses: conservation of momentum
- David112234
- · Replies 1 ·
Series RLC circuit at 5.0 kHz resonance: find L, impedance, current and power
- SilverAu
- · Replies 8 ·
When is the Best Time to Throw a Ball for Maximum Height?
- Gbox
- · Replies 8 ·
Train accelerating on a circular path: finding tangential acceleration
- JulienB
- · Replies 6 ·
Solving a Cycloid Equation: Finding θ(t)
- thomas91
- · Replies 42 ·
Mathematical Equation for my experimental data?
- Coolguynice
- · Replies 2 ·
How Can I Correctly Calculate the Intensity in a Diffraction Pattern?
- Isaac Pepper
- · Replies 3 ·
Which wall thickness gives half the stress
- Janiceleong26
- · Replies 8 ·
Solving Statics Question: Ty/Tx = 0.18/0.24
- David Donald
- · Replies 1 ·
Finding pressure P of air held in between two columns of Mercury
- Janiceleong26
- · Replies 2 ·
Finding Final Velocities in head-on Collision
- Cait602
- · Replies 10 ·
Which force does friction counteract on an inclined plane?
- sharpnova
- · Replies 21 ·
Law of conservation of energy
- ImpulseLeaq
- · Replies 2 ·
Finding the Magnitude of Force in each of two vines
- Scott Towers
- · Replies 2 ·
Finding final velocity for Conservation of Energy Problem
- senpim
- · Replies 1 ·
2 magnets falling, one through a metal ring, which is faster
- moenste
- · Replies 2 ·
No mass for mass per unit length
- nanocreation76
- · Replies 1 ·
Reaction forces in a pin jointed frame
- mrtoodles
- · Replies 2 ·
Collision and Momentum of Blocks
- Tim Wellens
- · Replies 1 ·
Max speed given power and resistive forces
- Jezza
- · Replies 2 ·
Interference - Single slit diffraction
- Isaac Pepper
- · Replies 5 ·
Energy to lift a mass, voltage, amps, time, distance confuse
- Barclay
- · Replies 7 ·
How do you calculate speed without taking mass into account?
- GregoryG.
- · Replies 10 ·
Definition of a specific kind of motion
- ShreddedHeart
- · Replies 1 ·
Specify force magnitude and angle
- mtjc1x
- · Replies 14 ·
Finding bullet's initial velocity to intercept a projectile
- JulienB
- · Replies 3 ·
Pulley on a moving base problem
- AliGh
- · Replies 17 ·
Effect of massive spring on static vs dynamic experiment
- Tulzz
- · Replies 6 ·
Force provided during deceleration?
- TommyChestnut
- · Replies 1 ·
Finding electric field intensity
- Prathamesh
- · Replies 9 ·
Newton's Law System With Both Frictions
- Michele Nunes
- · Replies 3 ·
Power needed to keep conveyor belt moving at constant speed
- Janiceleong26
- · Replies 2 ·
Power Dissipation in a Resistor: How Does Resistance Affect Energy Loss?
- Janiceleong26
- · Replies 4 ·
Path difference between the waves
- toforfiltum
- · Replies 10 ·
How to Calculate Equivalent Resistance and Current in a Simple Circuit Problem?
- Callix
- · Replies 16 ·
Tension of a pole attached to a wall at an angle
- Robert5742
- · Replies 2 ·
Fleming's left-hand rule on charged particles
- moenste
- · Replies 3 ·
Stress and deformation tensors for a 10mm cube under compression
- zDrajCa
- · Replies 1 ·
How Does Quadrant Location Affect the Electric Field Vector Calculation?
- azizlwl
- · Replies 1 ·
Finding minimum force to lift a 491 N crate using wheels and grip point
- OmniNewton
- · Replies 6 ·
Water Velocity and Pressure From 5 degree Gradient At 200 m
- Point Conception
- · Replies 6 ·
Acceleration and tensions in pulley system with three ropes and friction
- kj99
- · Replies 7 ·
[Friction] Angled bar pressing down against a plate
- bartersnarter
- · Replies 6 ·
Calculate speed without distance
- Tiffaney Sporl
- · Replies 3 ·
Does work account for direction when considering only KE?
- Keeby
- · Replies 1 ·
How Long Should a Ramp Be to Stop a Ford Ranger with Brake Failure?
- Tiffaney Sporl
- · Replies 3 ·
Spring Compression (x-x0) = .00579 m
- nrip6
- · Replies 1 ·
Calculating Final Speed in Elastic Collision: Uranium Atom and Hydrogen Molecule
- weizhi li
- · Replies 1 ·
How can the uncertainty relation be written as such
- Abdul.119
- · Replies 4 ·
What are some effective designs for an egg drop project using limited materials?
- Digitz
- · Replies 1 ·
Nichrome and Copper Circuit w/ Electron Mobility
- Callix
- · Replies 31 ·
How Is the Friction Force on the Box Calculated?
- MattRC
- · Replies 2 ·
Longest Wavelength of Standing Wave on Clamped Metal Rod
- ft92
- · Replies 2 ·
An Easy QM normalisation question
- FaraDazed
- · Replies 14 ·
Momentum of Block A and B Colliding
- Tim Wellens
- · Replies 3 ·
Electric field at center of charged hemispherical shell
- Titan97
- · Replies 2 ·
Spring Constant Calculation for a 0.2kg Bloc with 40cm Displacement
- astrololo
- · Replies 32 ·
Why does spring PE equal total mechanical energy at any height?
- Fatima Iqbal
- · Replies 2 ·
Instantaneous center of velocity for a inverted slider crank
- yugeci
- · Replies 1 ·
Year 1 physics: Fluid Dynamics with Tree Sap replacing Water
- ConquestAce
- · Replies 4 ·
Which Quintuplet Returns to Earth Last Based on Time Dilation Ranking?
- kolua
- · Replies 5 ·
Speed of 0.2 kg block at maximum spring compression
- astrololo
- · Replies 12 ·
QM: commutator 2D particle magnetic field
- zhaos
- · Replies 2 ·
Fluid Mechanics: Pressure in Fluids
- Lukas_RSA
- · Replies 3 ·
Is There Enough Information to Solve the Relativistic Velocity Addition Problem?
- mfreeman
- · Replies 7 ·
Electric field magnitude problem
- gracy
- · Replies 27 ·
Experiment to Investigate Air Resistance
- Jimmy87
- · Replies 46 ·
Size of current in parallel wires
- songminho
- · Replies 8 ·
ACTUAL Variation of Potential inside a diode.
- Amal Thejus
- · Replies 2 ·
Calculating Time for a Trailer to Move with Constant Friction
- Cincin
- · Replies 5 ·
Fluid Dynamics - Hydrostatic Pressure #2
- Lukas_RSA
- · Replies 4 ·
How does air resistance affect terminal velocity for a diver?
- Janiceleong26
- · Replies 6 ·
Wire with current and field problem
- Callix
- · Replies 6 ·
Period of Rotation for Artificial Gravity on Earth
- astrololo
- · Replies 12 ·
Why Does Light Interference Differ from Sound Interference?
- Janiceleong26
- · Replies 2 ·
Error in Natural Frequency (Lab)
- Afterthought
- · Replies 1 ·
Spring potential energy and mass
- kolua
- · Replies 12 ·