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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Winch power for 950kg ore car on 30-degree incline
- cooltee13
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What is Ann's final position in different reference frames?
- Sanjay87
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Temperature of ice-water mixture
- jiceo1
- · Replies 12 ·
Having problems with my physics class
- hj_creynolds
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How to Calculate Tire Contact Area from Weight and Pressure
- dumguy
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Very Simple = a negatively charged rod will only attract what?
- daNAV1GATOR
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More than one dielectric ibetween a parallel plate capacitor
- rusty009
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Electric Potential Energy of a Charged Particle in an Electric Field
- European Sens
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Solving Rotational Force in Beverage Engineering
- iamkristing
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What is an overtone in sound waves?
- alexavier
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Lowest final temp when adding substance to hot water
- chiurox
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Help studying physics for an important test
- alexavier
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How Is Work Calculated in a Two-Rope Tension Problem?
- wind326
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Centripetal Force and G Forces while travelling over a hill
- Zach Smith
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Find the distance traveled by the block
- DeanBH
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Calculating the mass of a comet using the impact method
- joe17857
- · Replies 11 ·
Finding tension in ropes supporting a person in equilibrium
- Hemmelig
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What is the electric field at a point midway between two charges?
- daniel69
- · Replies 4 ·
Threshold Energy Calculation for Proton-Proton Collision
- FreeAnnyong
- · Replies 2 ·
Integration Center of Mass Problem -Really frustrated
- bcjochim07
- · Replies 11 ·
Can a Man Swing Across a 50m Canyon with a 30m Grapple Hook?
- godofrock
- · Replies 3 ·
Relativistic rocket with photon exhaust momentum and energy
- joker_900
- · Replies 1 ·
Spacecraft Deep Impact - Comet's mass
- treverd
- · Replies 1 ·
Understanding Wave Phase: Definition and Equations
- foxjwill
- · Replies 3 ·
SHM horizontal spring mass system
- bionerdette
- · Replies 1 ·
Fluid Mechanics of a diving bell
- clope023
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Two cars braking toward each other 275 m apart
- mistymoon_38
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Energy required to place a satellite in orbit
- XxBollWeevilx
- · Replies 15 ·
Density of a planet using orbit of a satellite
- XxBollWeevilx
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Calculating Time to Complete Half of Magnetic Field Circle Using Fc Equation
- soul5
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Force perpendicular to ramp to keep 22 kg box at rest on 45° incline
- tascja
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What Is the Intensity of Sound at 123 dB?
- yoshiba
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Finding acceleration of a box pulled by a rope at an angle
- sprinter08
- · Replies 7 ·
Induced current in coil surrounding a solenoid at t = 1.22 s
- splac6996
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Mass of star HD 179949 from hot Jupiter orbit and ISS orbital height
- coolfreesia
- · Replies 1 ·
Is the Mass of My Birthday Pulley Evenly Distributed?
- bcjochim07
- · Replies 1 ·
How to calculate tension in hanging ropes
- slyskittle
- · Replies 3 ·
Solving a Trajectory Problem Involving a Watermelon
- MEAHH
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How Do You Calculate Hydrostatic Pressure in a Spherical Water Tank?
- teamgonuts
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Why Does the 1/3 Factor Appear in the Moment of Inertia Calculation?
- salman213
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How Much Work Is Done by an Olympic Triathlete Accelerating on Her Bicycle?
- checkmarks
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Solve Balmer's Formula for Wavelengths
- elephantorz
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Volume of a liquid in a container
- clope023
- · Replies 5 ·
Finding Optimal Angles for Projectile Motion Using Kinematics and 2D Vectors
- whtan20
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How Can a Watercraft's Path Be Modeled Without Trigonometry in a Flowing Stream?
- Hendrick
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How Much Space Does 0.736 kg of Oxygen Occupy at 1°C and 105 Pa?
- cstout
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How Do You Determine Post-Collision Velocities Using Distance and Angle?
- sodr2
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Temperature in Thompon's experiments.
- elephantorz
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Differential equation for parallel R'LC resonant circuit
- tjd_maximum
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Current of a coil surrounding a solenoid
- skinner
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Smooth slope - A level question.
- DeanBH
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Radio Transmission: Jupiter-Earth Time for Response
- kokenwa
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What is the Correct Solution to 92x^3y divided by -28xy^3 in Algebra?
- Enos
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Explain why the average velocity of the gas molecules in a container is zero
- joe1joe1joe2
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Magnetic Force on a Vertically Moving Electron Near the Equator
- soul5
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Net flux through cube faces with point charge at edge
- goyal.vishesh
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Center of Mass of compound cylinder
- corochena
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Time between equal kinetic and potential energy in SHM
- kjartan
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Angular Velocity of a swinging Sphere
- zylaxice
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Does This Van de Graaff Generator Question Make Sense?
- daNAV1GATOR
- · Replies 18 ·
Gravitational Potential Energy of a rope
- FailingPHYS
- · Replies 4 ·
Electric Field Between/Above Parallel Charged Rods
- Fusilli_Jerry89
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How Do You Calculate Displacement from Town B to Town C?
- MercifulBoss
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How Does an Airplane's Aluminum Antenna React to Earth's Magnetic Field?
- divacute2
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U-tube pressure balance and steam-ice equilibrium temperature
- peaches1221
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Can Watts Be Converted into Ohms?
- anonymous820
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What Direction Does the Magnetic Field Oscillate in a Vertically Traveling Wave?
- lisamay44
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How Many Extra Electrons Does a Latex Sphere Have in an Electric Field?
- ProtoXtype
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Electric Potential Car Battery Problem
- maphco
- · Replies 7 ·
Rotational KE of rolling onion and angular momentum of rotating astronauts
- luvtodance151
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Linear Mass Density of current and wires
- splac6996
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What Distance from Earth Achieves Weightlessness for Astronauts?
- bcjochim07
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Charge movement in a magnetic field along the z-axis (into page/out of page)
- pinkenergy
- · Replies 16 ·
How Much Fresh Water Is Needed to Submerge a Submarine in Salt Water?
- b0r33d
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F(avg) and Fmax during collision
- keltix
- · Replies 15 ·
How to Calculate Uncertainty in Complex Equations with Trigonometric Functions
- questions
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Converting 26.6 mA to Amps: .026 or .0026?
- anonymous820
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Determine the distance of this point from the center of the Earth.
- Sheneron
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Calculating the Refraction Angle of a Light Ray Incident on a Prism
- BioMechanical
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Slopes of a Force vs. Charge and Force vs. Distance Graph
- heatherann
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5.76x10^-3 NRadiation Force on Echo II Satellite Ballon
- jabosh7777
- · Replies 4 ·
Parallel plates with a mass m at an angle
- ~christina~
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Heat flow through a rod element with given thermal gradient
- bharp24
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Conservation on Angular Momentum
- misskk24
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Finding iceberg volume from height and submerged depth
- b0r33d
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Wavelengths of lowest and highest audible frequencies
- Lyphta
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Center of Mass: Weight Distribution for Bob & Charlie
- silentshimmer
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How far can four stacked bricks overhang without tipping?
- bcjochim07
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Oscillation frequency of circuit
- ttiger2k7
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Are Linear and Tangential Acceleration Just Angular Values Times the Radius?
- forty
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Ampere's Law-when does it work?
- JasonBourneV
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Radius of Curvature for Mirror w/ 10.0cm Candy Bar
- kdl8614
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Learning about emission spectra for an independent project
- elephantorz
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Finding velocity with changing distance and acceleration
- bluedolphin12
- · Replies 4 ·
Finding net magnetic field, charge, and electric field for moving particle
- physicsbhelp
- · Replies 14 ·
Solving Kepler's Equation for Comet Orbit Time Around Sun
- susan__t
- · Replies 1 ·
Carbon-14 Dating Age Calculation
- xinlan
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Certain isotope tell you that the decay rate decreases
- xinlan
- · Replies 3 ·
Lead bullet melting on impact and ice cube in calorimeter
- peaches1221
- · Replies 5 ·
Electric field and potential on x-axis from y-axis dipole
- yosite
- · Replies 3 ·