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 Moment of Inertia of a Sphere About an Axis on Its Edge?
- Rker
- · Replies 1 ·
Top and bottom of a swinging object
- MechaMZ
- · Replies 3 ·
Electric Field Strength of a Wire w/ Linear Charge Density
- foxjwill
- · Replies 10 ·
How do you find answer in Newton?(read)
- DudewithSkull
- · Replies 1 ·
Heat transfer equation (temperature difference)
- MechaMZ
- · Replies 6 ·
How do you calculate the electric field and voltage for a charged sphere?
- Cryphonus
- · Replies 18 ·
Work Problem (Block with spring)
- Chandasouk
- · Replies 8 ·
Pumping seawater up a 12 m cliff with 150 kPa pressure
- sonutulsiani
- · Replies 1 ·
What are the x and y components of the velocity of the CM of the two bodies?
- jayced
- · Replies 3 ·
Ppl i am just 14 and am tryin to make a car and i am having problems
- saarthak007
- · Replies 4 ·
Why is the Electron's Momentum Higher in Special Relativity?
- JDiorio
- · Replies 4 ·
Understanding Electric Field Changes Passing Through a Waveplate
- raisin_raisin
- · Replies 1 ·
Children pulling toward center on rotating board
- asl3589
- · Replies 1 ·
Students to classrom heat transfer
- snabelpablo
- · Replies 1 ·
Professor flips bicycle wheel on turntable
- bvan22
- · Replies 3 ·
Angular Momentum before and after being hit with a ball of clay
- Qnslaught
- · Replies 3 ·
Gravitational force on a sphere from three others at corners of a square
- saintv
- · Replies 3 ·
Calculating Current Split in Parallel Circuit with Frequency of 100 sec-1
- awakeinroom8
- · Replies 3 ·
What is the solar radius of Rigel and Procyon B?
- snabelpablo
- · Replies 3 ·
How Far Does a Package Travel Horizontally When Dropped from a Plane?
- yoyophysics1
- · Replies 12 ·
What is the density of the wood?
- G-reg
- · Replies 4 ·
Drag Racing - Involving Work and Velocity
- marcus1255
- · Replies 1 ·
Calculating Velocity of Wave in Wood Stick and Resonance Tube
- Fleet
- · Replies 1 ·
Finding the resultant and eq. for 3 vector on one point
- needhelp1
- · Replies 3 ·
Problem relating to skateboarding down a ramp
- marcus1255
- · Replies 4 ·
How Does Mass Affect the Force Required to Overcome Friction?
- maym
- · Replies 1 ·
Pulley problem - finding tensions and acceleration
- reesespieces2
- · Replies 2 ·
Projectile Motion (Firefighter)
- Chandasouk
- · Replies 8 ·
Angular acceleration of wheels: 8.5 revolutions in 4.5 s
- Devin Longo
- · Replies 3 ·
A small ball rotating and along a curve and landing at a certain distance
- farleyknight
- · Replies 2 ·
How Is Average Net Force Calculated on a Mercedes?
- JMurph
- · Replies 1 ·
Is my physics quiz on confirmations correct?
- CanadianEh
- · Replies 1 ·
Gravity/Planetary Forces Question - High School physics question
- closertolost
- · Replies 5 ·
How Does Acceleration Impact the Period of a Pendulum's Simple Harmonic Motion?
- cissablecat23
- · Replies 7 ·
Calculating Gravitational Attraction: Force of a 48.9 kg Student on Earth in N
- jojo14
- · Replies 1 ·
Utility maximization, profit optimization, cost minimization
- jzq
- · Replies 2 ·
Angular momentum of a 670 g rotating bar
- Dark Visitor
- · Replies 9 ·
How far does each can slide on the table?
- kashiark
- · Replies 1 ·
Work Done on Block Moving in Circle with Changing Radius
- Devin Longo
- · Replies 7 ·
Finding the Missing Projectile Motion Formulas
- Ripcurl
- · Replies 1 ·
Spring elastic potential energy with rubber bands and toy
- kmag
- · Replies 1 ·
Mass of a person who weighs 500 N
- DubKing
- · Replies 2 ·
Velocity of Light: How Space and Time Change
- petwil90
- · Replies 1 ·
Magnetic Effect of an Electric Current
- tua28494
- · Replies 1 ·
Power in RL Circuits: Solving for Time Constant
- Redd
- · Replies 4 ·
Explaination of Potential,Kinetic,and Total Enrgy involving going up a hill.
- jayced
- · Replies 1 ·
Why Does Hair Stand Up When Touching a Van der Graaf Generator?
- Idrees
- · Replies 1 ·
Calculating Resultant Forces: Salt Deposition, Aircraft Loops, and Lorry Bends
- MorallyObtuse
- · Replies 2 ·
Formulas for friction and work problems with applied forces
- kingperfect
- · Replies 3 ·
Circular Motion with a hydrogen atom
- all_relative
- · Replies 3 ·
Hanging block Tension problem finding components/angle
- noniramen
- · Replies 3 ·
How Does Altitude Affect Gravity?
- singinglupine
- · Replies 4 ·
What Is the Net Gravitational Force on a Sphere at the Origin?
- singinglupine
- · Replies 2 ·
Massive electromagnetic charge - hypothetical for author
- Ivy78
- · Replies 2 ·
Electromagnetic Force Problem -
- ashkash
- · Replies 5 ·
Torque has been a difficult chapter
- dan987
- · Replies 2 ·
What Are Some Simple Physics Questions About Rotational Motion?
- CanadianEh
- · Replies 6 ·
Newton's laws multiple objects contact forces
- tigerwoods99
- · Replies 3 ·
What is the relationship between velocity and momentum in collisions?
- Dark Visitor
- · Replies 17 ·
Circular Motion and carnival ride
- all_relative
- · Replies 2 ·
Explaination for earth-moon centre of rotation
- Boogeyman
- · Replies 7 ·
Minimum mass of stars with helium fuel and sun's energy production
- karol17
- · Replies 3 ·
Horizontal force of pushed blocks
- vu10758
- · Replies 14 ·
What is the absolute magnitude of the sun
- Krissy0612
- · Replies 8 ·
How Do You Calculate the Sedimentation Coefficient of Escherichia coli?
- quietviolence
- · Replies 1 ·
Angular acceleration of pulley with hanging mass
- wiveykid
- · Replies 1 ·
Current in a capacitor circuit with trapezoidal EMF
- pynergee
- · Replies 1 ·
How Do You Calculate Angular Acceleration and Displacement of a Rolling Ball?
- BlakeEdwards
- · Replies 1 ·
Finding Work from Angle, Mass, and Displacement
- Joel M
- · Replies 2 ·
Resolve Your Friction Problem with These Simple Solutions
- coolkid26
- · Replies 2 ·
Creating/Destroying Electron-Positron Pairs: Time Limit?
- S1CkFiSh
- · Replies 1 ·
A mass on a spring, trying to find dispacement after at certain time. ( )
- The Merf
- · Replies 3 ·
How Do You Calculate Torque to Stop and Reverse a Water-Filled Cylinder?
- billinr
- · Replies 1 ·
Solving for Pressure Rise in Manometer with Oil & Mercury
- agadag
- · Replies 4 ·
What Is the Shear Centre in Mechanics?
- donhubix
- · Replies 1 ·
Air Resistance and Trajectory Differences
- qazxsw11111
- · Replies 7 ·
Finding the recoil speed, energy stored, and compression of a spring
- JJBrian
- · Replies 8 ·
Particle Motion and Forces: Solving for Velocity, Acceleration, and Force
- helpme1
- · Replies 4 ·
The partical of mass 'm' is moving with the laws
- helpme1
- · Replies 6 ·
How will be changed the kinetic energy of a particle if its velocity will be .
- helpme1
- · Replies 1 ·
Does normal acceleration characterize the change in direction of velocity?
- helpme1
- · Replies 6 ·
Forces and velocities of a sliding box
- tiffanyg
- · Replies 1 ·
How Are Triangles Used to Represent Vectors in Physics?
- redroom
- · Replies 3 ·
What mechanical paramater has a unit corresponding to expression
- helpme1
- · Replies 8 ·
Why Is the Angular Velocity of a Clockwise-Spinning CD in the -y Direction?
- Qnslaught
- · Replies 1 ·
Velocity and acceleration of a turtle
- tiffanyg
- · Replies 1 ·
Finding terminal velocity of a skydiver with parachute using drag force
- physics_newb
- · Replies 16 ·
Calculating Tension in Rope of Accelerating Balloon
- physics_newb
- · Replies 1 ·
How Far Was the Turtle from the Fence Post at the Start?
- tiffanyg
- · Replies 5 ·
Spring Constant off by a factor of two
- rakbarut
- · Replies 2 ·
Electric field between two charged rods
- aliaze1
- · Replies 3 ·
Static Equilibrium Weight Problem
- r_swayze
- · Replies 2 ·
Beat frequency between two buzzers with Doppler effect
- Idrees
- · Replies 1 ·
Solving Rotational Motion: Min Force Required for Incline of 30 Degrees
- NoBodyKnows
- · Replies 3 ·
Finding magnitude of horizontal velocity
- hello115897
- · Replies 3 ·
How Fast Was the Projectile Launched on the Moon?
- ryty
- · Replies 12 ·
What is the Recoil Speed and Energy Stored in a Spring Gun After a Collision?
- JJBrian
- · Replies 5 ·
Multiplying by unit vector in electric field equation
- ChrisBaker8
- · Replies 1 ·
Calculating Pressure at Different Altitudes and Depths
- robertsa
- · Replies 2 ·