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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Calculating Force for Holding a Raised Flagpole with a Hinged Base
- Dark Visitor
- · Replies 4 ·
How Far Does the Sled Travel Before Stopping?
- DLPhysics
- · Replies 4 ·
Centripetal Acceleration of laundry dryer
- rambo5330
- · Replies 8 ·
Electric circuit problem: Can you solve for V?
- chronicals
- · Replies 6 ·
Finding induced EMF from changing magnetic flux
- exitwound
- · Replies 6 ·
How do scale accuracy and measurement uncertainty combine when adding mass?
- UNknown 2010
- · Replies 6 ·
Thank you.Balancing Forces in Falling Rod: Solving for Normal Force
- Ramar
- · Replies 2 ·
Finding r1/r0 for an elliptical orbit with given eccentricity
- Cryphonus
- · Replies 6 ·
Why T sin θ gives radial acceleration in a conical pendulum
- mc8569
- · Replies 1 ·
Ratio of the velocities of two atoms, based on kinetic energy
- buttermellow
- · Replies 2 ·
Max Distance: Find Center of Box from Table End
- Dark Visitor
- · Replies 4 ·
Energy of an oscillating spring
- qazxsw11111
- · Replies 3 ·
Why is a truss with 4 reaction unknowns solvable with 3 equilibrium equations?
- pnd910
- · Replies 5 ·
Determining EMF and Internal Resistance
- joseppi
- · Replies 6 ·
Finding net force magnitude and direction for sailboat with wind and water forces
- jumongv2
- · Replies 3 ·
Factors Affecting Acceleration Due to Gravity in Free Fall Experiments
- nnis13
- · Replies 6 ·
How can i make a graph of velocity vs time taking into account air resistance?
- nnis13
- · Replies 11 ·
Question wording- incline question
- caljuice
- · Replies 1 ·
Tennis ball launcher using spring or bungee cord in PVC pipe
- Penguin10
- · Replies 2 ·
Carbon resistor temperature dependence of resistance
- weston_sagle
- · Replies 3 ·
Motion of a charged particle in a magnetic field
- kihr
- · Replies 5 ·
How Do You Calculate Maximum Speed and Height with Varying Acceleration?
- Noir
- · Replies 2 ·
Finding tension of a cable on a beam
- Dark Visitor
- · Replies 16 ·
Minimum height for a car to complete a loop without falling off
- SpeedofSound
- · Replies 1 ·
Finding the EMF Generated by a Solenoid
- exitwound
- · Replies 11 ·
Fish Pulling on Reel: Angular Accel. & Line Pulled
- premedonna89
- · Replies 2 ·
Simple Harmonic Oscillator: From Hooke's Law to Harmonious Motion
- Bill Foster
- · Replies 5 ·
Calculating Net Gravitational Force on Mass A in a Square Configuration
- knight4life
- · Replies 7 ·
Electric Field of a Dielectric Sphere
- Marvi
- · Replies 3 ·
Find the centripetal acceleration of the space shuttle
- ambitiousgirl
- · Replies 1 ·
What is the Minimum Breaking Tension of Tarzan’s Vine Rope?
- rpullo
- · Replies 3 ·
Angular momentum of particle with position r = 3t i - t² j + 2 k at t = 2 s
- peachy112girl
- · Replies 1 ·
Friction/Movement of Blocks down inclined plane
- ehunger1
- · Replies 1 ·
Thermodynamics: What mass of the waxy material is required to conduct the test?
- HermanC
- · Replies 4 ·
Impulse from basket ball against ground at an angle
- okscuba45
- · Replies 1 ·
Finding mass with acceleration and velocity
- PepeF.
- · Replies 1 ·
Thermal Energy Dissipated in a Resistor in AC vs DC
- Oijl
- · Replies 1 ·
Rotational motion- steam engine
- fruitl00p
- · Replies 5 ·
Drone launch angle to hit target 400m east with 5 m/s south wind
- velocityay
- · Replies 3 ·
Why Do Ionization Energies Vary with Odd and Even Electron Counts?
- warrior_1
- · Replies 4 ·
Difference in liquid column heights in a rotating U-tube
- kidsmoker
- · Replies 3 ·
CM and Translational Motion problem
- The_Fritz
- · Replies 1 ·
Finding the tension in the cable
- tjohn101
- · Replies 1 ·
Solving Statics Vectors: 10N Weight, 30° Support Angle
- starryeyed
- · Replies 3 ·
Physics 101: Calculating Velocities of Thrower and Catcher
- jaredgeorge19
- · Replies 1 ·
Matching Initial Position and Velocity of Oscillator
- Linus Pauling
- · Replies 1 ·
Angular Velocity of a turntable after weights are added
- doneganstm
- · Replies 1 ·
How Does Firing Cannon Balls Affect the Position of a Railroad Car?
- hangten1039
- · Replies 14 ·
Young's modulus - calculating delta L
- Linus Pauling
- · Replies 2 ·
Current - two parallel conductors
- hawkbyte
- · Replies 1 ·
How Is Angular Acceleration Derived in a Pulley System?
- Linus Pauling
- · Replies 12 ·
Finding mass and freefall acceleration on planet X
- PepeF.
- · Replies 2 ·
Calculate Force (N) on Bullet in 0.8m Rifle Barrel
- PepeF.
- · Replies 1 ·
Find the forces if given resultant.
- williamx11373
- · Replies 1 ·
How Do Phase Differences Affect the Amplitude of Combined Waves?
- AndreAo
- · Replies 8 ·
Calculating Tension and Speed in a Centripetal Force Problem
- kengreen
- · Replies 13 ·
A cylinder rolls without slipping- find the angle
- vballgurl154
- · Replies 2 ·
Angular momentum of a uniform bar w/ two forces applied
- Linus Pauling
- · Replies 2 ·
Finding a friction force (ladder leaning against a wall )
- Linus Pauling
- · Replies 2 ·
How Do I Find the Coefficient of Friction Using Potential Energy?
- hanagasumi
- · Replies 2 ·
Guy Jumping out of Building (Air Resistance)
- DLPhysics
- · Replies 4 ·
Finding displacement from the equilibrium
- tjohn101
- · Replies 10 ·
Sum of torques/friction problem
- ddn87
- · Replies 1 ·
Electric Field inside a Hollow non conducting sphere.
- sl33py.
- · Replies 1 ·
Box on inclined ramp: finding acceleration with different mass
- Mayy
- · Replies 2 ·
Density of ethane at 30°C and 771 mmHg using ideal gas law
- moe darklight
- · Replies 1 ·
Plane flying north with wind from the east: what angle to correct?
- TNewC
- · Replies 3 ·
Parallel plates, calculate charges and E. fields without surface area?
- SuckIt
- · Replies 5 ·
Understanding Capacitor Charging and Discharging with a Square Wave Input
- phil ess
- · Replies 2 ·
Wheel rotation, constant acceleration
- matt3D
- · Replies 9 ·
Work done to bring together 2 protons
- crazuiee
- · Replies 4 ·
Calculating Work Needed to Compress Spring
- Chandasouk
- · Replies 7 ·
Max.transverse tension in a wave
- AndreAo
- · Replies 6 ·
How Do You Calculate the Moment of Inertia for a Rectangular Sheet?
- HeartOfLions
- · Replies 1 ·
Calculating An Acceleration To Arrive With Zero Velocity
- eddieparker
- · Replies 1 ·
Finding initial velocity from horizontal and vertical displacement in 4th second
- MusePhysick
- · Replies 5 ·
What is the significance of the proton-deuteron fusion reaction in stars?
- Qnslaught
- · Replies 1 ·
How Much Work for a Chin-Up Based on Body Mass?
- Chandasouk
- · Replies 1 ·
Center of Mass of draining Soda can
- jpalmer91
- · Replies 3 ·
What is the force causing the sphere to roll down the ramp?
- Dr_bug
- · Replies 3 ·
Moon to Earth Gravitational Force Problem
- ddn87
- · Replies 9 ·
Why is the weight component 20000N down a 46 degree slope?
- ishotbambi
- · Replies 4 ·
How much can be lifted with a wheel barrow?
- katamoria
- · Replies 1 ·
What Is the Mass of an Unknown Nucleus in a Proton Collision?
- goalieguy
- · Replies 8 ·
Masses on incline plane and pulley.
- i<3physics
- · Replies 2 ·
How Can I Master Kinematics in Two Dimensions?
- AttackZebra
- · Replies 1 ·
Double-slit: what causes the altering problem
- genu
- · Replies 1 ·
Calculating Force and Direction of Cable AB
- tito2004
- · Replies 1 ·
Transformer output power and secondary coil turns
- Physics8944
- · Replies 9 ·
What is the amplitude of vibration for a fish on a spring scale?
- tjohn101
- · Replies 5 ·
Moment of inertia of four masses at rectangle corners
- Dr_bug
- · Replies 1 ·
Why does fusion end with iron as binding energy per nucleon decreases?
- warrior_1
- · Replies 1 ·
What Is the Woman's Velocity Relative to Water?
- ndoc
- · Replies 1 ·
Question involving L and ω where L does not equal Iω
- azure kitsune
- · Replies 5 ·
What Factors Determine Acceleration and Net Force in a Hanging Mass System?
- 1irishman
- · Replies 1 ·
Finding initial speed of 20g ball hitting hanging 100g ball elastically
- ChodeNode
- · Replies 2 ·
Mechanical Energy and Trajectory
- James98765
- · Replies 5 ·
Finding horizontal range from projectile.
- shizupple
- · Replies 3 ·