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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Electric Field Inside a Dielectric-Filled Spherical Capacitor
- BOAS
- · Replies 8 ·
Why do two 2V batteries in parallel have 2V while in series they produce 4V?
- Drizzy
- · Replies 1 ·
Does turning a spoon in water raises the temperature?
- godingly
- · Replies 1 ·
Why does my book say this circuit analysis is wrong?
- Drizzy
- · Replies 25 ·
Energy of 2 spherical shells filled with dielectric
- phys-student
- · Replies 3 ·
Maximum Velocity= 4.8 m/s2Deceleration= -1.2m/s2
- alsy
- · Replies 30 ·
Angle of the slope when the object start moving
- goldfish9776
- · Replies 5 ·
Calculating Torque for Door Keeper and Lock Latchbolt
- balan turer
- · Replies 8 ·
Apparent depth equation proving
- salivian selwyn
- · Replies 3 ·
Basic thermodynamics, reversible engine process
- connorc234
- · Replies 8 ·
Finding the diferencial function of a moving particle
- Gbox
- · Replies 3 ·
Constrained motion with movable pulley
- cr7einstein
- · Replies 6 ·
How Does Water Pressure Affect the Initial Velocity in Projectile Motion?
- Bucko
- · Replies 1 ·
Linear Motion Question: Object thrown vertically
- coffee38392
- · Replies 2 ·
Conservation of momentum of a skateboard
- Mr Davis 97
- · Replies 9 ·
Finding Thevenin equivalent for a circuit with parallel resistors
- Gbox
- · Replies 10 ·
Electric Field at a Point on the x-Axis Due to Charges
- gracy
- · Replies 4 ·
Magnetic flux through a loop near a long current-carrying conductor
- gruba
- · Replies 5 ·
A Couple more "Rotation of Rigid Bodies" questions
- sophixm
- · Replies 1 ·
Block dropped onto spring: work and compression
- fromhuk
- · Replies 6 ·
What is the Correct Calculation for Centroid of Composite Area?
- goldfish9776
- · Replies 20 ·
How Long Did It Take for the First Revolution of a Computer Disk Drive?
- sophixm
- · Replies 4 ·
Proof of sin(θ-Φ)=sinθcosΦ-cosθsinΦ using vector algebra
- Jamiemma1995
- · Replies 8 ·
Tension in string at a point on a frame
- LeafMuncher
- · Replies 1 ·
Work and Energy: predicted/measured from Force graph
- toboldlygo
- · Replies 2 ·
Electric and Magnetic Field lines
- kilnvzol
- · Replies 33 ·
Calculating Distance Between Two Joggers on a Run
- cvc121
- · Replies 3 ·
How does air resistance affect a ball's acceleration?
- Badgeray
- · Replies 8 ·
Finding velocity from angular velocity and position vector
- connorc234
- · Replies 18 ·
Linear Motion Question: Ball thrown in the air
- coffee38392
- · Replies 1 ·
Сurrent through spherical capacitor
- sergiokapone
- · Replies 2 ·
Change in momentum, impulse force calculations
- Yousufshad
- · Replies 4 ·
How Are Forces and Momentum Affected in a Two-Block Collision?
- Cait602
- · Replies 11 ·
Position of a particle from the graph of its velocity
- Tarrok
- · Replies 1 ·
What is the tension in the rope at the fixed support?
- erisedk
- · Replies 5 ·
Calculating Amplitude of a Harmonic Motion System with Added Mass
- Zynoakib
- · Replies 2 ·
Projectile Motion: Salmon Jumping a Waterfall - Calculating Minimum Speed Needed
- Rumplestiltskin
- · Replies 2 ·
Matching particles to semicircular paths in a magnetic field
- kilnvzol
- · Replies 7 ·
Homework: Solving T1=T2 Equation - Is the Answer C?
- Scholar1
- · Replies 2 ·
Solving a Simple Pendulum Problem with Math
- Lord Anoobis
- · Replies 9 ·
Does the length of a resistor affect the strength of its electric field?
- Huej
- · Replies 2 ·
A gong that makes damped oscillation
- kolua
- · Replies 3 ·
Spring constant of rotating garter spring stretched 1% at 300 rpm
- starlord37
- · Replies 3 ·
Calculating the Center of Mass of a Leg
- hawkeye1029
- · Replies 5 ·
Mass sliding on rough and smooth surfaces
- Karol
- · Replies 13 ·
A grinder has a 6.01 kg steel block on a 1.46 m long arm.
- KingKell
- · Replies 2 ·
Velocity ratio of helium and oxygen atoms with equal kinetic energy
- Yousufshad
- · Replies 4 ·
Introductory physics, energy conservation question
- Yousufshad
- · Replies 7 ·
Electric Field Outside a Uniformly Charged Spherical Shell
- azizlwl
- · Replies 6 ·
When do I use Kinetic Energy and Momentum?
- halo168
- · Replies 9 ·
Dot products in spherical or cylindrical coordinates
- phys-student
- · Replies 3 ·
Mass of an Object Moving Down a Slope.
- Cailan Emmett
- · Replies 6 ·
Can someone tell me how they did cross product?
- Warlic
- · Replies 2 ·
Can I use a dot product of accel. and vel. to find displace.
- Jamiemma1995
- · Replies 1 ·
Why does the duration of an egg yolk spin depend on its viscosity?
- DANIneplanets
- · Replies 2 ·
Oscillation amplitudeWhat is the amplitude of the oscillation?
- kolua
- · Replies 5 ·
Dimensionless Radial Equation Hydrogen Atom
- Summer95
- · Replies 1 ·
2 Problems involving electric field and work
- nutella
- · Replies 3 ·
Motion described by differential equations
- diredragon
- · Replies 3 ·
What's Wrong with My Thevenin Equivalent Short-Circuit Current Calculation?
- hitemup
- · Replies 1 ·
Why does rope B have greater frequency if both men shake at the same rate?
- kolua
- · Replies 23 ·
Floating Cylinder of Uniform Density
- ScrubTier
- · Replies 21 ·
How Does Time Dilation Affect Spacecrafts Traveling at High Speeds?
- Teslanumber1
- · Replies 2 ·
Finding particulate matter emissions
- chemman218
- · Replies 7 ·
Finding electric field at the center of a polarized cylinder
- phys-student
- · Replies 12 ·
Heavy chain moving upward at constant velocity
- AHashemi
- · Replies 7 ·
Pressure on the wall of aquarium
- Destroxia
- · Replies 7 ·
Can someone explain to me what my professor did?
- Warlic
- · Replies 7 ·
Simple spherical quantum mechanics question: r dot p
- zhaos
- · Replies 1 ·
Longest wavelength strongly reflected from MgF2 coated glass
- Barry Melby
- · Replies 1 ·
Design a wind turbine experiment at the High School level
- Barclay
- · Replies 4 ·
Gravitational Field Variation of Disc Orbitating Earth
- LeoPedranjo
- · Replies 4 ·
What Is the Total Moment of Inertia of the Yo-Yo?
- Haveagoodday
- · Replies 10 ·
Pulley attached to a pulley - Find the balance equation
- AHashemi
- · Replies 11 ·
Solve Wedge-Block Problem: Velocity of Block
- AnwaarKhalid
- · Replies 1 ·
Maximum speed of a box compressing a spring on an inclined p
- harik2000
- · Replies 6 ·
Potential/kinetic/mechanical energy
- J827
- · Replies 7 ·
Point between Sun and Earth where gravity is zero?
- Dillion
- · Replies 14 ·
Descending mass on rope attached to wheel
- ConorDMK
- · Replies 13 ·
Which application benefits most from a short damping time?
- RedEyes
- · Replies 2 ·
Determine equation for object distance
- Barry Melby
- · Replies 1 ·
Small block with velocity inside a large block at rest
- CoconutFred
- · Replies 3 ·
Space Shuttle, thermal energy transfer, book makes no sense
- Barclay
- · Replies 38 ·
Find Angular Velocity when given Angular Acceleration?
- Justinclewis94
- · Replies 1 ·
Bicycle wheel rotational motion
- Haveagoodday
- · Replies 15 ·
4-wheel drive car acceleration: torque, friction, and kinetic energy
- Haveagoodday
- · Replies 16 ·
Force between 1 kg and 2 kg blocks in three-block system
- Warlic
- · Replies 2 ·
Graphing Lab Data: Confusion with X-Value (h or h/l) - Results Included
- bumbajonny
- · Replies 5 ·
Why Isn't U = 4 When the Battery Voltage is 4V?
- Drizzy
- · Replies 13 ·
Vertical friction required of a block between two walls?
- lilmayo99
- · Replies 1 ·
Approximate Values of Kinetic Energy and Potential Energy
- Wakko
- · Replies 2 ·
Finding a State Vector for a Qubit with a Probability of +1 Measurement of 9/10
- RJLiberator
- · Replies 10 ·
Why Is y Bar Zero in the Parallel Axis Theorem for Area?
- goldfish9776
- · Replies 5 ·
Proof: 3 Reversible evolutions -- Hermitian Conjugate
- RJLiberator
- · Replies 2 ·
Why Doesn't Newton's 3rd Law Apply Here?
- toforfiltum
- · Replies 8 ·
Focal length of thin converging lens
- Kompewt
- · Replies 3 ·
Calculate Apparent Weight at Point S
- astrololo
- · Replies 13 ·
Is I=Mk^2 the Same as I=mr^2 in Physics Nomenclature?
- SadPanda6022
- · Replies 2 ·
What is the direction of the Coriolis force in various scenarios at the equator?
- nmsurobert
- · Replies 6 ·
Travelling object that explodes into 3 separate pieces
- Han_Cholo
- · Replies 9 ·