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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Two masses attached to a spring
- guru1323
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Solving for Speed: Roller Coaster at the Top of a Loop
- SherBear
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How much force is needed to tip a box with given dimensions and weight?
- poyganhunter
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A block of mass 100 kg is being moved steadily by pulling on a rope at
- jigoku_snow
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What is the coefficient of performance of this refrigerator?
- sltungle
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Two trains travel. Based on their leghths, mesure
- MissJewels
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What Must Superman's Initial Velocity Be to Save the Falling Student?
- ash312
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Physics Riding a loop-the-loop?
- Eats Dirt
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How much additional altitude can rocket obtain with launch assist.
- Futabo
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Einstein's train (simultaneity)
- sunrah
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Basic electrostatics's potential difference question.
- vkash
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Find the angle the boat has to head
- Goopy17
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How Do Capacitors Charge in a Circuit with Multiple Batteries?
- sabak22
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The arm of a crane at a construction site is 15.0 m long
- DrunkApple
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How do transformers affect power transmission in a circuit?
- titanium90
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Calculating Change in Kinetic Energy for a Crate Pulled Up an Incline
- BallerRegis
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Pendulum Problem with unknown angle
- jg727
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Kinetic Energy Change of a Cart on a Frictionless Surface
- DavidAp
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Understanding Buoyancy: Answering the Question on Stone Immersion
- physics kiddy
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What is the radial acceleration of a pendulum at a given angle?
- jg727
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Launch speed to reach a given orbital altitude
- horsecandy911
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Finding Work along a displacement
- c42
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Phase Difference Homework: Find Magnitude of Phase Difference at Detector
- KingBigness
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Why do the centripetal and gravitational force equal each other in orbit?Also
- MakeItThrough
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Projectile Motion on a Ramp: Solving for Distance, Time, and Velocity
- Becca93
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Finding distance through a velocity-time
- Becca93
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A question involvingn safe working voltage and capacitors?
- jackcie
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Solving tension equations with trig.
- sdoi
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Estimating Heart Power Output for Humans Standing/Lying Down
- gunster
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How Is the Radius of Curvature 8.68 mm Calculated for a Lens?
- roam
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Understanding Car Collisions: Mass, Velocity, and Acceleration Explained
- jsr219
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Finding distance with Kinematics
- Becca93
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Diameter and Fundamental Frequency
- mtreichl
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Optimizing Organ Pipe Modes with Vent Holes
- mtreichl
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Settting up force problem with only mass and velocity provided
- Zontar
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What does this equation mean? Physics Work.
- DavidAp
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Changing Magnetic field inducing an electric field
- Silversonic
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Understanding the Science of Flash in Cameras
- Celluhh
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LATERAL DISPLACEMENT EXPLANATION NEEDED please
- misz_sunshine
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Finding distance from sonic boom
- leinad0213
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FBD of centripetal acceleration
- loopsnhoops
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Signal and Time Displays in Everyday Devices
- Badger33
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Finding length with two given frequencies
- leinad0213
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Sonic boom heard in how much distance x?
- leinad0213
- · Replies 1 ·
Atwood Machine: Find m1's Descent and Velocity
- physics_geek
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How far does Joe fall when Anastasia falls from a tree?
- jojo711
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Two dimensional collision. Center of mass reference frames?
- yigh
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How Do You Calculate the Moment of Inertia for a Cone?
- jforce93
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Work, tension and conservation of energy
- ex81
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Calculating Stopping Distance with Spring Forces and Friction
- wxscientist
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How Does a Particle's Kinetic Energy Affect Its Wave-Particle Duality?
- hxcguitar101
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Motion in One Dimension: Model Rocket
- jojo711
- · Replies 18 ·
Why does a spherical lens/mirror have spherical aberration.
- wyosteve
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Graphing the superposition of three waves
- Jettaisthebes
- · Replies 15 ·
What is the Maximum Height of a Vertically Thrown Rock?
- jojo711
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Motion in a plane II, Coin on a turntable with Vmax
- SherBear
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Differential Equation of a moving car with drag
- santais
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Calculating Magnetic Force on Bent Wire in a Magnetic Field
- blackbyron
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Coulomb's law and electric fields
- BobRoss
- · Replies 18 ·
Conservation of linear momentum and acceleration due to gravity.
- vkash
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Solve for Net Force on Block C: Homework Problem
- robkom
- · Replies 5 ·
Angle of Tension b/w 2 Dogs Pulling Ropes?
- Nano-Passion
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Maximum Height of Vertically Thrown Rock
- jojo711
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What is the Tension and Stretching of Spider Silk in Equilibrium?
- michael1291
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A 30 kg child moving at 4 m/s jumps onto a 50 kg sled that is initiall
- chicagobears
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Can force in Newtons be negative?
- zoezoehzoe
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Finding Velocities of Two Points on a Ladder at a 60-Degree Angle
- karkas
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Simple Harmonic motion of buoyant force
- Jake4
- · Replies 3 ·
Weird 2-spring problem with VERY limited data
- McFate
- · Replies 3 ·
Coefficient of kinetic friction on wooden plane question
- Daved
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Solving a Friction Problem with a 32° Ramp
- egrus8
- · Replies 3 ·
Answer Conical Pendulum: Determine Angle in Car Traveling Circular Road
- neoh147
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Standing waves and banjo string
- phyzeek
- · Replies 5 ·
Mastering Physics, conceptual problem (no values)
- punyhuman92
- · Replies 6 ·
Why can't i see people on the other side of tinted windows?
- Celluhh
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What Happens to Induced EMF When a Magnet is Placed in the Middle of a Coil?
- jsmith613
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Can 3 Force Members Be Collinear?
- pyroknife
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Finding radius of satellite in orbit given mass and rotational period
- csgirl504
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Finding spring constant of mass
- Smartguy94
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How Do You Integrate When F and r Are Vectors?
- Sefrez
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Stuck on Algebra in Time Dilation Problem.
- erincaldwell
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Calculating the change of momentum in a system
- cheetogrease
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Finding Force then converting to work
- cjknowland
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Work: an object falls onto a spring. Find max. dist. the spring is compressed.
- DavidAp
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Specific Heats for Incompressible Fluids
- Spectre5
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Hi Our teacher told us the following:F = m * v² / r = m * 4 pi² /
- physwha
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Calculating Block Speed Before Compressing Spring
- joshbrackeen
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Introduction to Work, do I have the right concept?
- DavidAp
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How Does a Helicopter Tension Problem Affect Load Dynamics?
- fobbz
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Torque at certain points (equilibrium)
- fobbz
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How Do You Calculate Acceleration and Tension in a Three-Mass Pulley System?
- artyboy
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2 springs @ 30 degrees supporting a mass
- alaix
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Thermodynamics closed cycle entropy cycle
- Liquidxlax
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How Do You Calculate Tension in Wires Holding a Revolving Ball?
- ilovejesus
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Trains colliding and latching together
- mrshappy0
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What is the angle of the car-truck combination after an inelastic collision?
- mrshappy0
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Hitting a billiard ball h above centerline
- CrazyDolphin
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Electrical stability of an atom
- lxman
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Finding Angle Which Cube Falls Off Sphere
- apierron
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Horizontal force due to tension from vertical wieght
- fatalphysics
- · Replies 1 ·