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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What is the current through the emf in a circuit with capacitors and resistors?
- fluidistic
- · Replies 4 ·
Lensmaker's Formula: Solving for Image Distance i
- jpartdq
- · Replies 1 ·
Moment of inertia of disc with plasticine dropped onto it
- Skuzzy
- · Replies 3 ·
Normal force on 1kg mass on 30° incline with horizontal 10N force
- 1irishman
- · Replies 6 ·
Friction force incline two masses connected by a string
- konto77
- · Replies 3 ·
Which object will reach point O first?
- najima
- · Replies 12 ·
Understanding Optics: Why is 2t changed to 2tn in problem 35.54?
- Niles
- · Replies 4 ·
Uniform Circular Motion confusion.
- DavidAlan
- · Replies 4 ·
What are the units of spring constant K?
- zaga04
- · Replies 2 ·
What is the Phase Constant for a Simple Harmonic Oscillator with Given Graphs?
- foundAnAnswer
- · Replies 2 ·
Maximum distance a falling fish stretches a spring
- pedro_infante
- · Replies 6 ·
Projectile motion from 39.2 m platform with 9.8 m/s launch speed
- tw1nky62
- · Replies 2 ·
Solving Mechanics Problem: Calculate Coefficient of Friction & Work Done
- Elumalai
- · Replies 1 ·
Newtons theory of gravity : satelite orbits and ellipses
- marshall104
- · Replies 3 ·
Cylindrical capacitor with a dielectric
- fluidistic
- · Replies 4 ·
How to locate Two spots where electric potential is zero
- crazuiee
- · Replies 1 ·
How Much Tension Holds a Snowboarder Airlifted by a Helicopter?
- lneedhelp
- · Replies 1 ·
Boxes hanging attached to box on shelf
- whartmann
- · Replies 1 ·
Momentum Conservation of Turntable and Beetle System
- amb202
- · Replies 3 ·
What Is the Critical Angle to Keep a Box Moving with Kinetic Friction?
- aftershock
- · Replies 1 ·
U-shaped tube- how far does the mercury rise when water is poured into one side?
- kalisious
- · Replies 1 ·
Finding tension and reaction forces in a static equilibrium problem
- jghlee
- · Replies 6 ·
Why Is My Calculation of Slit Width Using Light Diffraction Incorrect?
- mustang1988
- · Replies 1 ·
Biting Force Distribution in Herbivorous and Carnivorous Jaws
- Emethyst
- · Replies 5 ·
What Is the Resultant Magnetic Force on a Wire in a Magnetic Field?
- strick
- · Replies 5 ·
Determining the magnitude of unknown charges
- crazuiee
- · Replies 5 ·
Find the speed of flow in the second pipe of an ideal fluid
- kalisious
- · Replies 1 ·
What is the Maximum Height a Rolling Marble Reaches on a Rough Hill?
- raiderIV
- · Replies 3 ·
Block slides down a slope question (force and time)
- physicsguy112
- · Replies 1 ·
How Much Extra Work Is Needed to Stretch a Spring Further?
- miamirulz29
- · Replies 1 ·
How many times as high to achieve twice speed
- fattydq
- · Replies 5 ·
Potential energy incline problem
- xjasonx1
- · Replies 2 ·
Block falling on spring/max compression
- wilcofan3
- · Replies 2 ·
Solve for Person's Final Height After Jumping Off Bridge
- Illyasviel
- · Replies 1 ·
Force Needed to Slide Trunk Down Inclined Plane with Constant Velocity
- imatreyu
- · Replies 2 ·
Concave Mirror Experiment Question
- xxbooknotexx
- · Replies 3 ·
Which Energy does E signify in E=hf.
- I_am_learning
- · Replies 13 ·
Atwood machine with masses 1.8 kg and 1.2 kg
- ashvinthecha
- · Replies 6 ·
Calculate the angular momentum of a solid uniform sphere
- raiderIV
- · Replies 4 ·
Ratio of masses of merry-go-round and the boy
- dorian_stokes
- · Replies 1 ·
"Collision Homework: Find Mass of Cart & Impact Force
- mmoadi
- · Replies 1 ·
Find the angle and the velocity of two cars after collision
- mmoadi
- · Replies 2 ·
Can a 1000 kg car safely navigate a 150 m curve at 90 km/h?
- Macroer
- · Replies 3 ·
Explain the following action in terms of impulses
- bigd9903
- · Replies 1 ·
Archimedes force due to air on a person
- ttja
- · Replies 7 ·
How to Rank Radial Acceleration Magnitudes from Angular Velocity Graph?
- keemosabi
- · Replies 1 ·
Spring and block on incline with friction
- jjmont17
- · Replies 1 ·
Finding theoretical output of my hydro generaator thanks.
- suspecteg
- · Replies 1 ·
What is the circumference of a circle with a diameter of 1.2 meters?
- Samad
- · Replies 2 ·
Equlibrium and Gravitational Force
- amie
- · Replies 1 ·
What is the Maximum Frictional Force for a Block Against a Vertical Wall?
- DavidAlan
- · Replies 4 ·
Ball, gravity, velocity problem
- rcmango
- · Replies 2 ·
What is the minimum refractive index for total internal reflection at point P?
- Neophyte7
- · Replies 2 ·
How to find acceleration. With only Force of friction?
- 7randomapples
- · Replies 3 ·
Is Water or Air More Viscous at High Reynolds Numbers?
- UFeng
- · Replies 1 ·
Two questions on fluid mechanics and pressure
- iitjee10
- · Replies 3 ·
Showing Instaneous Rest of System When m2 Falls
- r162
- · Replies 1 ·
Calculating Relative Speed of Body Parts After Internal Explosion
- r162
- · Replies 3 ·
What is the Potential Power Output of a Waterfall?
- pinnacleprouk
- · Replies 2 ·
Calculating Time for a 90 Degree Turn in Circular Motion
- billu77
- · Replies 4 ·
Picket Fence Lab: Measuring Gravity Acceleration vs Time
- Want to learn
- · Replies 2 ·
What is the Velocity and Energy of a Child on a Swing?
- physicsquest
- · Replies 3 ·
How Fast Can a Spider Lower Itself Without Breaking Its Web?
- bobsagget
- · Replies 7 ·
Gr11 Percentage of Kinetic Energy
- Du312
- · Replies 3 ·
Finding Mass of Block from Friction Coefficient
- merzperson
- · Replies 2 ·
Finding net force on a falling 295 kg object with 75 m/s² acceleration
- wash
- · Replies 4 ·
What is the direction of impulse delivered to a bouncing ball?
- synergix
- · Replies 2 ·
Acceleration of block A with hanging weight vs constant tension
- merzperson
- · Replies 5 ·
Rubber ball Rotational Motion Question
- Theta
- · Replies 3 ·
Question on finding the volume of vapor and the volume of liquid
- rinchan4
- · Replies 9 ·
Finding the ideal velocity on a banked circular track
- mont
- · Replies 3 ·
How Do Gravity and Motion Affect Galaxies Andromeda and the Milky Way?
- Wellesley
- · Replies 4 ·
Impulse problem (intro mechanics)
- acherentia
- · Replies 1 ·
Maximum compression of spring after two freight cars couple together
- theoblivin8r
- · Replies 6 ·
Calculating Freefall Time: How Long Will the Book Take to Hit the Ground?
- Fritsc
- · Replies 3 ·
How Does the Moon's Position Affect Its Gravitational Pull on You?
- G-reg
- · Replies 13 ·
How exactly does friction/external forces affect the momentum?
- HoneyPancake
- · Replies 3 ·
Angular Acceleration with a Change in Rotational Axis
- Ignoramus
- · Replies 6 ·
Skydiving Analysis Homework: Position, Velocity & Acceleration Graphs
- rahul129
- · Replies 4 ·
Electron in circular motion in B field problem check
- nissanztt90
- · Replies 8 ·
Rocket with 9.8 m/s² acceleration reaching 0.1c
- cheerspens
- · Replies 1 ·
Calculating Angular Momentum for a Rolling Sphere
- lmnt
- · Replies 3 ·
U-238 decay into alpha particle and Th-234 using conservation of momentum
- theoblivin8r
- · Replies 7 ·
Why Am I Struggling with Newton's Laws Problems?
- jordanfeld
- · Replies 1 ·
Acceleration and free fall problem
- cheerspens
- · Replies 1 ·
Conservation of energy problem on an igloo
- ap.p.b.studen
- · Replies 1 ·
Maximum altitude of rocket with powered ascent and coasting phase
- cheerspens
- · Replies 3 ·
Centripetal generated by rotation of the Earth
- dan667
- · Replies 3 ·
Finding spring constant from massless spring release time
- Physics197
- · Replies 1 ·
Uniform roating disk - find inertia
- mattmannmf
- · Replies 8 ·
How Do You Calculate the Impulse of a Ball During a Collision with the Floor?
- crono_
- · Replies 1 ·
Lawn mower force question, and acceleration.
- bobsagget
- · Replies 6 ·
Dropping a Ball on a Frictionless Plane
- mckaiju
- · Replies 3 ·
Angular acceleration of a rod pivoted at an end, at angle below the horizontal
- therayne
- · Replies 2 ·
Calculate RPM: Kinetic Energy of a Wheel with Mass 15kg and Diameter 1.2m
- Kev1n
- · Replies 1 ·
Find angle to the rods vertical
- dorian_stokes
- · Replies 1 ·
What is the Friction Force on a Spinning Disk?
- holtvg
- · Replies 6 ·
Points of constructive and destructive interference
- AndreAo
- · Replies 4 ·
How Long Did the Power Delivery to the Ball Last?
- pinnacleprouk
- · Replies 5 ·
Skateboarder's tang. and radial acceleration
- lewis198
- · Replies 4 ·