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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Movement of electron in an nonuniform E and B fields
- sergiokapone
- · Replies 9 ·
The maximum magnitude of the electric field of a sphere
- sliperyfrog
- · Replies 16 ·
Calculate Impulse and average force
- Starrrrr
- · Replies 10 ·
Constructive interferance homework (concept) help
- Rae__
- · Replies 1 ·
Hertzsprung-Russell Diagram question
- Taylor_1989
- · Replies 1 ·
Finding the radius of curvature of trajectory
- doktorwho
- · Replies 7 ·
Free Fall and a Projectile motion question
- rockcandy
- · Replies 10 ·
Magnitude of a component of a triple star
- TheSodesa
- · Replies 3 ·
Diffraction Grating wavelength
- ReidMerrill
- · Replies 3 ·
What is the Correct Equation for Angular Acceleration in this Flywheel Problem?
- k_squared
- · Replies 8 ·
Analyzing the Vertical Acceleration of a Yo-yo Using Moment of Inertia
- Cepterus
- · Replies 4 ·
Optimizing Battery Connections: A Scientific Approach
- banoosh
- · Replies 2 ·
Conservation of Angular Momentum
- Katie Morton
- · Replies 3 ·
Distance Between Two F0 Stars: How to Calculate?
- Taylor_1989
- · Replies 14 ·
Why Do Microscopes Use Magnification Labels and Vision Correction Uses Diopters?
- amberita
- · Replies 1 ·
V=? for Relativistic Mass,length contraction & time dilation
- Axidecimal
- · Replies 6 ·
How can the Doppler effect be used as a motion detector?
- huffy
- · Replies 16 ·
Ball Rolling Without Slipping On A Turntable
- anon11
- · Replies 16 ·
Reducing voltage with two resistors
- banoosh
- · Replies 4 ·
What is the wavelength of a sound wave?
- huffy
- · Replies 4 ·
Magnetic field in a circular loop
- horsedeg
- · Replies 6 ·
Does the sun or the moon have a greater affect on the tides?
- Vitani11
- · Replies 4 ·
Pulsing an LED during muon detection
- rmiller70015
- · Replies 3 ·
Explain how postulates are synthesized into Special Relativity?
- Axidecimal
- · Replies 4 ·
How to find the force exerted on a particle on the Earth by the Sun
- Vitani11
- · Replies 1 ·
Charge in a Magnetic Field question
- Lonewolf393
- · Replies 1 ·
How Is the Area of a Relativistically Contracted Football Field Calculated?
- Turhan
- · Replies 7 ·
Direction of Electric field (EM induction)
- Rod Alexei
- · Replies 3 ·
Question about magnetic induction.
- Clara Chung
- · Replies 10 ·
What happens to electromagnetic radiation during collision?
- Vitani11
- · Replies 2 ·
Why Does Induced Current in a Solenoid Flow Left to Right?
- Clara Chung
- · Replies 2 ·
Why do you integrate to find the gravitational field?
- Vitani11
- · Replies 3 ·
What is the Direction of A X B Using the Right Hand Rule?
- belvol16
- · Replies 3 ·
Solve Tension in Rope Homework | Pi, Area & Density
- Noreturn
- · Replies 14 ·
What is the force imparted by the bullet on the block
- hamza2095
- · Replies 8 ·
What's the relation between angular resolution and distance
- Cocoleia
- · Replies 3 ·
Solving Volleyball Problem Homework w/ Max Speed & Angle
- agargento
- · Replies 19 ·
How to find maximum force on a velocity vs time graph
- AnonymousAnonymous
- · Replies 2 ·
Error propagation (tape shorter than measured length)
- FranzDiCoccio
- · Replies 6 ·
Determining the velocity function
- doktorwho
- · Replies 4 ·
What is the binding force for a falling disk with string?
- Vrbic
- · Replies 9 ·
Projectile Motion: Finding Velocity at Net Height
- gungo
- · Replies 9 ·
Circular orbits in Schwarzschild geometry
- alc95
- · Replies 1 ·
Moles of gas helium balloon; buoyancy; PV=nRT
- rsera
- · Replies 3 ·
Solving for the trajectory in the polar coordinate system
- doktorwho
- · Replies 7 ·
Possible Wavelength Difference Between Two Rays Passing Through a Prism?
- Stacey Freels
- · Replies 22 ·
Calculating Armature Torque for 250V DC Motor
- Reefy
- · Replies 13 ·
Figuring out why experimental results are different
- RoboNerd
- · Replies 13 ·
Projectile Motion: golf ball velocity to reach the green
- gungo
- · Replies 11 ·
How to Calculate the Working Range of a Radar Placed 35m Above Sea Level?
- prehisto
- · Replies 7 ·
How Long Does It Take for the Block to Reach the Other Side?
- rmb16
- · Replies 3 ·
Momentum question asking ratio of final 2 velocities
- hamza2095
- · Replies 2 ·
Simple Harmonic Motion - Determine the period of oscillation
- KevinFan
- · Replies 6 ·
Temperature as a function of vibration energy quanta
- physicstudent_B
- · Replies 1 ·
Sunlight, Intensity, electric field RMS
- ooohffff
- · Replies 3 ·
Estimate the radiation pressure
- ooohffff
- · Replies 4 ·
Is My Solution for the Kirchov's Current Law Differential Equation Correct?
- Alex Katko
- · Replies 11 ·
Power drawn by a water pump to project water through nozzle
- omoplata
- · Replies 1 ·
What is the Electric Field inside this charged sphere?
- k_squared
- · Replies 1 ·
Two solid hemispheres, one resting on top of the other
- Dustgil
- · Replies 12 ·
Energy partitioning (Attenuation)
- stubbe11
- · Replies 4 ·
Universal Gravitation and/or Tidal Force
- catphysics
- · Replies 1 ·
How much water boils off when a hot horseshoe is dropped in
- Shmiam
- · Replies 33 ·
Universal Gravitation and/or Tidal Forces?
- catphysics
- · Replies 1 ·
How Do You Calculate the Motion of a Baseball Thrown Upwards?
- gungo
- · Replies 3 ·
Calculate the maximum electrical force on a ball
- doktorwho
- · Replies 5 ·
What Happens to an Object with Negative Mass in Physics?
- Just_enough
- · Replies 4 ·
Acceleration of a rotational and translational system
- songoku
- · Replies 20 ·
Combining Newton's Laws and Kinematic
- gungo
- · Replies 1 ·
Interpreting a system matrix (optics)
- JulienB
- · Replies 1 ·
Period of pendulum moved to Jupiter's moon Io
- robax25
- · Replies 18 ·
What is the resistance between two resistors?
- ImpCat
- · Replies 30 ·
Static friction: Will the box move?
- Shannonvi
- · Replies 5 ·
Intro to Angled Forces and Vectors question?
- rabbitgears
- · Replies 2 ·
AP Physics: Designing a Loop to Pull 4 G's
- Daniel Abramow
- · Replies 3 ·
Range of Final Velocities in Collision of 10kg Ball and Sm. Mass Ball
- Hereformore
- · Replies 11 ·
How Is the Correct Weight Calculated in a Russell Traction Apparatus?
- Du57mi73
- · Replies 7 ·
Solar Panel - Voltage and Current from Spectral Radiance
- Hannah Vioula
- · Replies 3 ·
The Electrical energy of a conducting cylinder
- doktorwho
- · Replies 12 ·
Generating current through increasing capacitance
- Dilemma
- · Replies 3 ·
Frictional Forces-finding velocity and distance
- gungo
- · Replies 4 ·
Electric field everywhere for a hollow cylindrical conductor?
- Vitani11
- · Replies 2 ·
How to create an equation for changing friction?
- fi245
- · Replies 15 ·
Potential difference between points d and c in circuit
- Omar FTM
- · Replies 7 ·
Michelson interferometer moves and bright fringes disappear
- Cocoleia
- · Replies 1 ·
How is tension in a string affected by moment of inertia?
- Luke0034
- · Replies 2 ·
How can I uncouple this system when m1 ≠ m2? ....
- juan carlos trujillo
- · Replies 5 ·
Thin film appears red, thickness of this part?
- Cocoleia
- · Replies 6 ·
How Do You Calculate Torque and Power for Rotational Motion in Space?
- Rajika
- · Replies 4 ·
Hamilton equation for a block on an inclined plane
- Cocoleia
- · Replies 13 ·
X-Ray Diffraction Homework: Find Lattice Spacing d
- ShotgunMatador
- · Replies 1 ·
Relativistic electrons and positrons
- mangojuice14
- · Replies 2 ·
Find angle of the sphere losing contact with the surface
- Adriano25
- · Replies 9 ·
Entropy Change of Touching Blocks That Reach Equillibrium
- Joosh
- · Replies 7 ·
How do I find the velocity in this momentum conservation problem?
- Turhan
- · Replies 8 ·
Resonance in forced oscillations
- green-beans
- · Replies 2 ·
Finding emf1, R1 & R2 from a graph
- Omar FTM
- · Replies 3 ·
Rotation Velocity on a boomerang
- RicardoMarques
- · Replies 5 ·
Sublimation: invariant heat or internal energy?
- Vitor Pimenta
- · Replies 8 ·
Rocket Nozzle with combined equilibrium/frozen flow
- igowithit
- · Replies 1 ·