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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How to Calculate Force of Atoms Using the Yukawa-Type Potential Energy Function?
- mopar969
- · Replies 7 ·
Pushing a block up a hill (kinematics/dynamics)
- Sean1218
- · Replies 2 ·
Find Tension for Desired Harmonic Resonance
- Hockeystar
- · Replies 10 ·
Calculating Force on a Falling Body: 5 kg, a = 15 m/s²
- Ockonal
- · Replies 5 ·
Calorimetry: adding ice to water
- e46lover
- · Replies 2 ·
Simulating N-Body Gravity Interactions: A Challenge in Computational Physics
- DrCheeto
- · Replies 1 ·
Elastic And Inelastic Collision Questions
- spikefreeman
- · Replies 16 ·
Is the torque of a couple equal to the resultant torque?
- Andy21
- · Replies 4 ·
Force on Planet Moving in Interstellar Dust
- BigD
- · Replies 5 ·
How far from the lightbulb can you stand to see it? photon problem
- okgo
- · Replies 1 ·
Period of vibration with springs
- Julie323
- · Replies 13 ·
Conservation of energy and electrons in electric field?
- okgo
- · Replies 3 ·
Calculating Speed of Falling Mass on Pulley System
- Xels
- · Replies 2 ·
How is the Torque Equation Set Up for a Leaning Ladder in Static Equilibrium?
- physicsman2
- · Replies 5 ·
How Many Air Molecules are Contained in a Smooth Cylinder at Equilibrium?
- pfunk22
- · Replies 4 ·
Temperature from Doppler Effect spectral broadening
- anotherghost
- · Replies 1 ·
Work done in rotating a current carrying loop
- zorro
- · Replies 4 ·
Determining Mass of Holder w/ Period Squared Graph
- erik-the-red
- · Replies 5 ·
How Does a Charged Particle Move in Combined Electric and Magnetic Fields?
- zorro
- · Replies 25 ·
Why Don't We Need to Consider Net Force in Rotational Static Equilibrium?
- eason123deng
- · Replies 2 ·
Finding electric field at different points
- henchi03
- · Replies 9 ·
Improving Specific Heat Capacity Experiment
- Peter G.
- · Replies 1 ·
Mechanical energy- Falling rock
- fiziks09
- · Replies 2 ·
Potential Gravity Energy Question
- MacMilla
- · Replies 11 ·
Shell gets separated in two. What's v of two parts?
- arddi2007
- · Replies 14 ·
What Is the Angular Acceleration and Distance Traveled by the Paint Splotch?
- RedDanger
- · Replies 2 ·
Why is angular acceleration positive even though it is going clockwise?
- flyingpig
- · Replies 6 ·
How fast does the balloon accelerate upwards?
- osker246
- · Replies 3 ·
Uniform circular motion on a banked curve
- Sean1218
- · Replies 7 ·
Horizontal Forces exerted by door hinges
- sdcmma
- · Replies 2 ·
How Is Velocity and Impulse Determined in a Two-Car Collision?
- cary5
- · Replies 3 ·
Skier going over a ramp and haystack using energy conservation
- hasek888
- · Replies 9 ·
How is Impulse Related to Momentum?
- pirateboy
- · Replies 3 ·
Vi = 100km/h Vo=0km/h incline 15°. how far?
- twenty5
- · Replies 13 ·
Spring oscillation equilibrium point
- Julie323
- · Replies 7 ·
Two uniform beams on hinges with chain between centers
- cheater1
- · Replies 1 ·
What Is the Volume Ratio of Concrete to Styrofoam for a Floating Bridge Pontoon?
- sona1177
- · Replies 1 ·
Mass of a Pendulum on a Grandfather Clock
- twenty5
- · Replies 6 ·
Calculating Metabolic Energy Expenditure for Running and Walking
- dismalice
- · Replies 5 ·
Angle does it rotate & angular acceleration?
- DrMcDreamy
- · Replies 4 ·
Constant Current and Magnetic Field: How Will the Metal Rod Move?
- rmor'e
- · Replies 2 ·
Heat conduction through skin tissue layer at 37°C and 34°C
- chohocvo
- · Replies 2 ·
Satellite Orbiting Earth Energy
- blackheart
- · Replies 3 ·
Why is the normal force perpendicular to an inclined surface?
- nobahar
- · Replies 2 ·
How to Calculate (mu_s - mu_k) for M1 on a Horizontal Surface?
- bulldog23
- · Replies 10 ·
The average emf created by the earths magnetic field.
- mtmickush
- · Replies 1 ·
Rotating Polarizers: Find Light Intensity
- kususe
- · Replies 1 ·
Calculating Moment of Inertia and Torque for a Rotating Cylinder
- pb23me
- · Replies 4 ·
Does velocity affect the kinetic energy of falling objects?
- mohabitar
- · Replies 1 ·
How far will the truck travel before it stops?
- twenty5
- · Replies 1 ·
Two gravitating spheres colliding: express v1 in terms of v2
- blackheart
- · Replies 1 ·
Applying energy and work equations to homework problems
- takeiteasy
- · Replies 1 ·
Deriving mass of Earth from definition of gravity
- jrw
- · Replies 2 ·
What Minimum Diameter Must a Brass Wire Have to Withstand 350 N of Tension?
- GrandLuxor
- · Replies 4 ·
Conservation of Angular Momentum of wheel
- BIOPSYCH
- · Replies 11 ·
Ball rolling off an inclined plane
- Avathacis
- · Replies 2 ·
What is the Angular Velocity of a Sliding Beam and Man System?
- BIOPSYCH
- · Replies 2 ·
Moment of Inertia of a Rotating Cam
- Dorothy Weglend
- · Replies 5 ·
Static Equilibrium and Structure problems
- dch
- · Replies 17 ·
What is the Acceleration of Gravity on an Inclined Plane?
- Fraktal
- · Replies 7 ·
Forces on a String with a Transverse Wave
- Thefox14
- · Replies 1 ·
Thermal Energy created by block sliding down ramp
- ccflyfisher
- · Replies 3 ·
Train engine collides with stationary carriage
- flarefiragax
- · Replies 3 ·
Why Do Edge Springs on a Simulated Suspension Bridge Show Higher Tension?
- pratikpatel
- · Replies 3 ·
How Much Power Does the Heat Engine Generate?
- kikko
- · Replies 1 ·
Designing a Lab to Find Constant Slope Using E=Blv Equation
- lking226
- · Replies 4 ·
Need to find torque so I can find the period
- auk411
- · Replies 1 ·
Playability of a Homemade Musical Instrument
- Mustafa Umut
- · Replies 3 ·
I with Ramp and Pulley Physics Problem
- spg93
- · Replies 1 ·
Solid sphere Kinetic Energy problem
- pfunk22
- · Replies 5 ·
What Is the Force Exerted by the Wall on a Ladder?
- DrMcDreamy
- · Replies 3 ·
Force Alexander must exert to hold a kite at 65° with 10N wind
- anthroxy
- · Replies 15 ·
Moment of inertia of 3-mass system
- DrMcDreamy
- · Replies 1 ·
Pressure of Gas Exerted on Wall
- pkpiotr517
- · Replies 4 ·
What is the Relationship Between Bandwidth and RLC Circuit Parameters?
- IBY
- · Replies 10 ·
How Is the Spring Constant Calculated from Oscillation and Mass Changes?
- ConstableZiM
- · Replies 3 ·
Initial velocity for football field goal from 45m at 35°
- Phy.Student
- · Replies 1 ·
Work to accelerate a merry-go-round from rest to 1 rev per 8 s
- pb23me
- · Replies 2 ·
What is the magnitude of the torque in this scenario?
- BIOPSYCH
- · Replies 2 ·
Collision of cars - calculate mass
- BobbyTee
- · Replies 8 ·
Velocity of football kick problem
- Phy.Student
- · Replies 3 ·
Time it takes for water to boil
- ian 610
- · Replies 1 ·
Magnetic Induction Homework: Find Displacement FA
- zorro
- · Replies 9 ·
Force on a sphere in flowing water and velocity of water
- come2ershad
- · Replies 1 ·
Most probable speed of aluminium atoms
- Bugsy23
- · Replies 2 ·
Spring Acceleration: Does Velocity = 0 Mean a = 0?
- IKonquer
- · Replies 1 ·
Work out the tension on a string
- jimmy42
- · Replies 5 ·
A patient is undergoing open heart surgery
- wanted1
- · Replies 3 ·
What Does It Cost to Use Electrical Appliances in Different Scenarios?
- wanted1
- · Replies 5 ·
Calculating Force in a Hydraulic Press
- C-A-L
- · Replies 6 ·
Calculating Torque: How to Find Torque with Vector r, Acceleration a, and Mass m
- nameVoid
- · Replies 1 ·
What is the specific gravity of the disk?
- sona1177
- · Replies 2 ·
Equilibrium of Two Uniform Rods over a Cylinder: Solution
- Idiot_1
- · Replies 1 ·
Deriving Equation for Water Depth After Tank Hole Poked
- gboff21
- · Replies 3 ·
Step up transformer + ac generator question
- tobz102
- · Replies 3 ·
Why does the sky appear blue and clouds white?
- AlchemistK
- · Replies 1 ·
Why does a spring balance display mass in kg instead of weight in newtons?
- Peter G.
- · Replies 6 ·
How Much Energy is Needed for a Carnot Refrigerator to Convert Water to Ice?
- ian 610
- · Replies 3 ·
Calculating max. speed of car over humpback bridge before it leaves the ground?
- Sleve123
- · Replies 6 ·