Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Measure weight of object hanging from a spring
- kitty9035
- · Replies 2 ·
Determining the Density of a sphere.
- teamsoulglo
- · Replies 6 ·
Two charged spheres with -12µC total charge and 10.8 N attraction
- SheldonG
- · Replies 7 ·
Answer Elastic Collisions: Can It Be Solved Easily?
- cepheid
- · Replies 3 ·
Is Group Velocity Merely a Mathematical Concept Compared to Phase Velocity?
- neelakash
- · Replies 1 ·
How Do You Analyze Particle Motion Given a Position Function?
- spin360
- · Replies 2 ·
How Does Kinetic and Potential Energy Explain Everyday Physics?
- pharm89
- · Replies 3 ·
Particle Motion: Finding Position, Velocity, and Acceleration at a Given Time
- spin360
- · Replies 4 ·
Finding the point where Earth and Moon's gravitational forces cancel
- Raza
- · Replies 3 ·
I want to know if there are many development on transformers.
- Bez
- · Replies 2 ·
Astronaut and Satellite Separation Speeds
- meran
- · Replies 3 ·
How Fast Must Wind Blow to Lift an Aluminum Sheet?
- holdenthefuries
- · Replies 2 ·
Calculate the work done by the mover
- raman911
- · Replies 12 ·
Finding angular acceleration as a function of time.
- Trojanof01
- · Replies 4 ·
Determining Force Exerted by Foot While Walking
- emz500
- · Replies 10 ·
Magnetic Flux Through a Wire Coil
- cepheid
- · Replies 1 ·
Kinetic energy and force for a 14 kg projectile in a 3 m canon barrel
- raman911
- · Replies 6 ·
Projectile Motion of Flying Balloon
- transcendental
- · Replies 3 ·
Calculate the forces of a mover pushing a crate
- raman911
- · Replies 14 ·
AP Physics free response practice help
- harmonicmotion
- · Replies 59 ·
Doppler effect Indianapolis 500 problem
- RedHotLlama18
- · Replies 3 ·
Reduce the volume of aluminumm by 10%
- iceman_ch
- · Replies 6 ·
World's largest guitar - frequency of vibration
- Kimisaishime
- · Replies 5 ·
How much fluorine replaces 25 kg of oxygen at lower pressure?
- bpw91284
- · Replies 14 ·
Mass with friction sliding into spring, compressing and bouncing back
- stacerho
- · Replies 6 ·
Torque on a block with acceleration 4i-3j.
- chouZ
- · Replies 3 ·
Angular speed of a swinging rod
- chouZ
- · Replies 4 ·
Why is the reaction force angled upwards on a flat drawbridge?
- danago
- · Replies 4 ·
Does Mass Affect Falling Speed with No Air Resistance?
- AznBoi
- · Replies 7 ·
Understanding Electron Transfer in Static Electricity: Material Influence
- kaya-king cola
- · Replies 3 ·
Moment of inertia of a wagon wheel with eight spokes
- Trojanof01
- · Replies 2 ·
How Do You Calculate the Outcome of an Elastic Collision on Frictionless Slopes?
- stacerho
- · Replies 4 ·
Calculating Oxygen Cylinder Duration
- bpw91284
- · Replies 5 ·
Molecule Kinetics: Calculating Temperature from Speed Upon Moon Re-Entry
- bpw91284
- · Replies 5 ·
How to Solve for the Fractional Change in Temperature in an Adiabatic Process?
- Gyroscope
- · Replies 3 ·
How do I calculate the height on a ramp for a rolling ball?
- sportsnh
- · Replies 2 ·
Air-track cart oscillation: finding time when x=4.6 cm
- jaysea
- · Replies 12 ·
Kinetic Energy and skateboarder
- raman911
- · Replies 13 ·
Simple part of a hard problem involving momentum/kinetic energy conservation
- anightlikethis
- · Replies 3 ·
How Does a Conveyor Belt's Kinetic Energy Change with Gravels?
- avonrepus
- · Replies 1 ·
Solve Series Circuit for RT, IT, I3, V1, V3, V5
- Dazed
- · Replies 3 ·
Centripetal acceleration of a wheel
- future_vet
- · Replies 2 ·
Solving a Simple Harmonic Motion Problem
- stacerho
- · Replies 1 ·
Helium balloon volume ratio at 2530 m altitude
- Rasine
- · Replies 1 ·
Higher resistance of hair dryer
- thschica
- · Replies 1 ·
Calculating Energy of Vibrating String Problem
- e(ho0n3
- · Replies 3 ·
How Does Force Calculation Error Occur in Momentum Problems?
- rootX
- · Replies 1 ·
What Are the Uses and Limitations of Electromagnets?
- Bez
- · Replies 3 ·
Angles of Nodal Lines (Two point light source)
- ND3G
- · Replies 1 ·
Energy, power and staying still.
- Fallen Seraph
- · Replies 7 ·
How Do Pulleys Affect Acceleration and Tension on an Inclined Plane?
- a150daysflood
- · Replies 2 ·
How Does Time Dilation Affect Flight Duration in Special Relativity?
- deenuh20
- · Replies 1 ·
Equilibrium and Potential Energy
- xaer04
- · Replies 5 ·
What happens when a low-voltage battery connects to a speaker?
- Bradracer18
- · Replies 4 ·
Simple harmonic motion of small planet
- fruitl00p
- · Replies 23 ·
Induced emf between theh ends of an antenna
- mike1234
- · Replies 2 ·
When does current flow through resistor R from right to left?
- mike1234
- · Replies 3 ·
Two holes in water tank produce streams striking the same floor point
- ruffkilla
- · Replies 11 ·
Will constant torque accelerate an object?
- sportsnh
- · Replies 3 ·
Cannon shell splits at 875 feet, find 5 lb piece velocity
- Aggie
- · Replies 8 ·
Compare torque from force applied at different points
- future_vet
- · Replies 3 ·
Total Momentum of A and B = 2mV0
- kitty9035
- · Replies 4 ·
Motion of charged particles in E and B fields
- georgia
- · Replies 4 ·
Find the power developed by an engine with torque
- J_Martin_2006
- · Replies 5 ·
What Surprises Await the Observer in These Physics Scenarios?
- Andy_ToK
- · Replies 11 ·
What does the y-intercept mean in a 1/p vs 1/s lens experiment?
- Link-
- · Replies 6 ·
Forces between parallel currents
- georgia
- · Replies 1 ·
How Tall Must a Water Column Be to Generate 100mmHg Pressure?
- tandoorichicken
- · Replies 1 ·
Calculate the energy of the proton
- dotcom
- · Replies 1 ·
Bullet Impact Speed Calculation: 2.25x10^3 N/m
- endeavor
- · Replies 1 ·
What Lens Power Does a Student Need for Reading Close-Up Without Contact Lenses?
- 21385
- · Replies 3 ·
Wind will affect the doppler effect?
- Andy_ToK
- · Replies 2 ·
Solving Conservation of Energy Problems
- xRadio
- · Replies 12 ·
How do I solve for total energy using kinetic and potential energy equations?
- xRadio
- · Replies 11 ·
What is the final velocity of two point charges moving away from each other?
- dotcom
- · Replies 5 ·
How do diverging lenses work?
- Aikenfan
- · Replies 6 ·
Help with homework equations
- Aikenfan
- · Replies 3 ·
How Does Beta Radiation Penetration Vary with Aluminium Sheet Thickness?
- robertholmes123
- · Replies 1 ·
How Does Charging a Capacitor Affect the Induced Magnetic Field?
- Sportsman4920
- · Replies 1 ·
Sinusoidal Wave: Double Frequency, Double Speed
- Andy_ToK
- · Replies 2 ·
Standing Waves on a String with a Free End
- e(ho0n3
- · Replies 6 ·
Period of a pendulum in a rotating coordinate system
- ataglance05
- · Replies 1 ·
Will the Block Slide or Tip Over on an Inclined Plane?
- psycovic23
- · Replies 2 ·
How Deep Does the Trampoline Spring Compress Under a 60kg Load?
- imontoya
- · Replies 1 ·
Second order circuit with two resistors, inductors and current source
- VinnyCee
- · Replies 17 ·
Sound interference with two sources 2m apart
- r_maths
- · Replies 3 ·
What is the Differential Equation for the Current in an Auto Induction Circuit?
- toetoe
- · Replies 3 ·
Second Order Op Amp circuit: Find Vo for t > 0
- VinnyCee
- · Replies 1 ·
Solving Impedance/Admittance for V_s w/ 2 Caps, 2 Inductors, 2 Res.
- VinnyCee
- · Replies 1 ·
Solving Pendulum Dynamics on a Rotating Platform
- ataglance05
- · Replies 2 ·
What Is the Pressure Inside a Bubble 4.0 m Below the Surface of Ethyl Alcohol?
- davidatwayne
- · Replies 3 ·
Capacitor made from pie tins and Kirchhoff's circuit problem
- Nick L
- · Replies 1 ·
Wavelength of visible light under a oil leak
- jarod
- · Replies 3 ·
Solve Equilibrium Problem: Brian from Chico State
- waterfolwer
- · Replies 3 ·
Proton in accelerator and magnetic field: work, velocity, radius, period, pitch
- nitrik
- · Replies 1 ·
Center of Mass, Momentum, and you
- Devrin
- · Replies 2 ·
Object launched from cliff with 50 ft/sec thrust for 2 seconds
- MC Escher
- · Replies 16 ·
Wave travel time vs rotation angle in spinning cord and block
- feelau
- · Replies 1 ·
How can I improve my problem-solving skills for a physics exam?
- grewas8
- · Replies 3 ·
Equation for the max height reached by a projectile
- ph123
- · Replies 1 ·