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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Factors affecting sound intensity
- somecelxis
- · Replies 1 ·
Does an Electromagnet Create Charge?
- ajcoelho
- · Replies 1 ·
How Do You Calculate the Series Resistance for a Voltmeter Using a Galvanometer?
- Myr73
- · Replies 4 ·
Optics: Find n for Proportionality of Concave Mirror Image to R^n
- DriggyBoy
- · Replies 6 ·
How Does a Woman Walking on a Turntable Affect Its Rotation?
- BrainMan
- · Replies 7 ·
Relativity of Orientation & Origin
- knowLittle
- · Replies 2 ·
Angular acceleration of pulley with two masses
- KKazaniecki
- · Replies 9 ·
Find EMF - Loop inside a loop generating a magnetic field
- ichivictus
- · Replies 10 ·
Solving for Angular Velocity in Trapeze Performance
- BrainMan
- · Replies 14 ·
Disk conservation of momentum problem
- BrainMan
- · Replies 4 ·
Tension particle between two strings
- WannabeNewton
- · Replies 8 ·
Find Net Couple with P=0 | Magnitude & Direction of Axis
- utkarshakash
- · Replies 2 ·
2014 F = MA #15 Torque Output Engine
- Jzhang27143
- · Replies 5 ·
How Do You Calculate Applied Force with Mass and Friction Coefficients?
- summerchambers
- · Replies 6 ·
Understanding Perpendicular Vector Components
- fightboy
- · Replies 2 ·
Static Slope Problem: Find Downward Force at Fulcrum
- dhc107
- · Replies 3 ·
Relationship between linear and rotational kinetic energy
- BrainMan
- · Replies 4 ·
Non uniform surface charge density
- amjad-sh
- · Replies 2 ·
Angular Acceleration and torque problem
- BrainMan
- · Replies 22 ·
Moment of Inertia for Half Disk
- bphys348
- · Replies 7 ·
Question Interpretation: "Describe the energy conversions in spring"
- Jaimie
- · Replies 3 ·
Solving Heat Added to Gas + Mass Density of a Gas
- physicsgirl199
- · Replies 1 ·
A student holding weights angular momentum problem
- BrainMan
- · Replies 5 ·
A Spider on a rotating disk conservation of momentum
- BrainMan
- · Replies 29 ·
How Does Increasing Current in Helmholtz Coils Affect Electron Motion Radius?
- NJFocusST
- · Replies 1 ·
Torque and angular acceleration pulley problem
- BrainMan
- · Replies 2 ·
What is the new angular velocity when a man moves on a rotating merry-go-round?
- BrainMan
- · Replies 2 ·
What is the tension in a rope with mass?
- Govind_Balaji
- · Replies 7 ·
Electric Fields -- Charges at corners of equilateral triangle
- Myr73
- · Replies 4 ·
Reflection laws applied on mirrors
- alingy1
- · Replies 1 ·
Calculating Distance: Particle's Travel with Fixed Charge at 55cm
- Myr73
- · Replies 8 ·
What is the emf of the ideal battery in this circuit?
- STEMucator
- · Replies 1 ·
Field in the region of the image charge
- fede.na
- · Replies 1 ·
Res-Monster Maze: Find Current Through R
- STEMucator
- · Replies 3 ·
Basketball player dunk - impulse, net force, GRF
- antonystad
- · Replies 1 ·
Basic RC Circuit Homework: Calculate Time Constant & Charge Decay
- STEMucator
- · Replies 3 ·
Design a Circuit: Solve Homework Statement
- STEMucator
- · Replies 1 ·
What is the Velocity of a Bullet Reflected by a Plane Mirror?
- DriggyBoy
- · Replies 5 ·
Grpah of l versus 1/f (sound wave)
- somecelxis
- · Replies 1 ·
Conservation of Angular and Linear Momentum
- Jzhang27143
- · Replies 3 ·
Distance of closest approach of like charge
- Satvik Pandey
- · Replies 19 ·
Imparting Linear Momentum: Examining a Train Car Example
- thonwer
- · Replies 14 ·
Acceleration vs Force graphWhat am I doing wrong?
- Crovati
- · Replies 11 ·
Projectile Motion Problem: Finding Maximum Height and Acceleration Vector
- Vibhor
- · Replies 7 ·
Compensating for Doppler Effect in Moving Car: Formula and Graphing
- bwinter
- · Replies 6 ·
(E&M) Don't understand why terminals of battery are switched
- nazopo
- · Replies 2 ·
Question: "A child on a sled (m=47.0 kg) slides down a long hill "
- Jaimie
- · Replies 2 ·
Obtaining potential from Lorentz Force
- iScience
- · Replies 1 ·
What Is the Minimum Deceleration to Prevent Two Trains from Colliding?
- showzen
- · Replies 4 ·
Electric Field at Center of Equilateral Triangle
- Myr73
- · Replies 17 ·
Inductance and Instantaneous Current
- 4Phreal
- · Replies 2 ·
What are some challenging physics questions on motion and acceleration?
- gakusei_98
- · Replies 13 ·
Finding the Mass from an Acceleration vs Force graph
- Crovati
- · Replies 2 ·
What is the peak strength of the Electric Field
- zoomba91210
- · Replies 1 ·
Single slit diffraction pattern in 2D
- alingy1
- · Replies 1 ·
How Far Must Point P Be from Speaker A for Constructive Interference at 400 Hz?
- Firben
- · Replies 1 ·
Fleming's left and Right hand rule
- adjacent
- · Replies 18 ·
Minimizing tension in the cables
- utkarshakash
- · Replies 20 ·
Rotational Motion and Torque: Solving for Angular Acceleration
- Brucezhou
- · Replies 8 ·
Calculating Maximum Air Cooling Capacity for Room w/ 2 Computers
- Fleet
- · Replies 1 ·
Solving Kirchoff's Rule: Magnitude and Direction of Current in Resistor Circuit
- emuhlay08
- · Replies 6 ·
How Does Coulomb's Law Explain Forces and Fields Between Charges?
- emuhlay08
- · Replies 3 ·
Partial pressure ratio of gases at different altitudes
- Chetlin
- · Replies 2 ·
How Should Electric Potential Energy Be Ranked at Point P?
- STEMucator
- · Replies 3 ·
Capacitors in series with dielectrics
- STEMucator
- · Replies 4 ·
What is the Efficiency of the system?
- kathy
- · Replies 1 ·
Isolated and non isolated conductors
- amjad-sh
- · Replies 6 ·
Practice with series & parallel
- STEMucator
- · Replies 6 ·
Moment of Inertia - Find Area Around Y-Axis
- Cheerios
- · Replies 1 ·
Is a thermoscope a reliable instrument for measuring temperature?
- Portuga
- · Replies 1 ·
Physics-electric charge(coulomb's law)
- josejayant13
- · Replies 4 ·
Solving Acceleration Problem: Find Initial Accel & Vel @ 5100m
- ryanbersa
- · Replies 14 ·
Which Average Velocity Formula Should I Use?
- fightboy
- · Replies 3 ·
Finding the Potential at a specific point in this Circuit
- tmint
- · Replies 1 ·
Solving Basic Vector Problems: Understanding Direction and Speed in Cricket
- tinybang
- · Replies 5 ·
How Does a Pendulum Behave When Its Support Accelerates Horizontally?
- Dazed&Confused
- · Replies 10 ·
Modified Harmonic Oscillator probabilities
- ma18
- · Replies 2 ·
Need some help finding applied force & coefficient of static friction
- summerchambers
- · Replies 12 ·
Circuit with multiple batteries finding the current through each one
- tmint
- · Replies 9 ·
Which of the following changes would result in the greatest deltatime?
- needingtoknow
- · Replies 3 ·
Resistors: Questions & Answers Explained
- pandaboi
- · Replies 6 ·
Wall Cavity Insulation Question?
- jake96
- · Replies 9 ·
Derivation of Planck's constant
- lsimpson1943
- · Replies 6 ·
How Do You Resolve Negative Indices in Convolution Calculations?
- AlecYates
- · Replies 3 ·
Find magnitude of current of 2 wires separated by an angle
- ichivictus
- · Replies 8 ·
Conceptual issue with average acceleration problem in Giancoli
- knyaz
- · Replies 7 ·
Conceptual question about rolling on a moving floor
- tzonehunter
- · Replies 4 ·
How Does Glass Thickness Affect Fringe Shift in a Double-Slit Experiment?
- alingy1
- · Replies 2 ·
How Can You Calculate the Distance AB in This Projectile and Wedge Problem?
- Satvik Pandey
- · Replies 24 ·
Radius of Mercury (celestial body)
- new hand
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Perfectly elastic collision, both velocities unknown
- chris787
- · Replies 4 ·
What Speed Do Electrons Reach in a TV Tube?
- Myr73
- · Replies 3 ·
Conservation in Dynamite Explosion
- stl
- · Replies 3 ·
Final velocity after distance given acceleration with respect to time
- Integrated
- · Replies 2 ·
Pendulum pulled through hole adiabatically
- PhizKid
- · Replies 12 ·
The energy needed to keep charges in place
- Myr73
- · Replies 16 ·
Calculate Distance of Lightning Strike with Temperature and Time | Homework Help
- sciencegeek101
- · Replies 3 ·
Rolling hoop hit with impulse. Find angle of deflection and max force.
- Dazed&Confused
- · Replies 4 ·
Help with Einstein and Planck's Views Question
- FilupSmith
- · Replies 2 ·
Looking for capacitive reactance but missing "C"
- tessie0407
- · Replies 4 ·