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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Why Does Nuclear Fusion Result in Mass Loss and Energy Release?
- patapat
- · Replies 4 ·
Electric Fields ( i attached a file)
- trah22
- · Replies 11 ·
Is the Image from a 12cm Focal Length Lens Virtual or Real?
- mike2007
- · Replies 2 ·
Centrifugal Force & Friction: Solving the Challenge
- gandharva_23
- · Replies 3 ·
How High is the Building and What is the Stone's Velocity Before Impact?
- libido_07
- · Replies 4 ·
Magnitude and direction of electric force (file attached)
- trah22
- · Replies 6 ·
Combination of translation and rotational motion
- harvik780
- · Replies 2 ·
Types of equilibrium, truck tipping, and center of mass in high jump
- Syph
- · Replies 1 ·
What Speed Range Keeps a Car from Skidding on a Banked Curve?
- matibtst
- · Replies 8 ·
How Much Work to Accelerate a Proton Between Specified Speeds?
- patapat
- · Replies 1 ·
Finding distance from a distance-time graph at 5.0 min
- HelloMotto
- · Replies 7 ·
Difficult Free Fall/Kinematic Problem
- meganw
- · Replies 4 ·
Speed, wavelength anf frequency
- mike2007
- · Replies 3 ·
What is the range of speeds for a car on a banked curve with friction?
- matibtst
- · Replies 1 ·
How Is Sound Intensity Calculated at a Distance?
- tasha_michelle
- · Replies 1 ·
An object open on both ends? V/WL/F
- tasha_michelle
- · Replies 1 ·
What Is the Speed of 200Hz Sound in Air?
- tasha_michelle
- · Replies 2 ·
Time for two objects to collide under gravitational attraction
- nealh149
- · Replies 9 ·
Time for a string particle to move 1 km in a transverse wave
- brookelynne3
- · Replies 5 ·
2D elastic collisions with equal masses
- blader324
- · Replies 23 ·
Tension on a Rope if used to Accelerate a car?
- meganw
- · Replies 3 ·
Multiple sound and temperature physics problems
- tasha_michelle
- · Replies 16 ·
Some unknown eqation i want to know about
- Omar Hayat
- · Replies 3 ·
Kirchhoff's Rule / finding unknown resistances and voltages
- exi
- · Replies 2 ·
How Long Does It Take a String Particle to Travel 1 km Given Wave Parameters?
- ladolce
- · Replies 3 ·
Are These Statements About Vectors and Motion True or False?
- matibtst
- · Replies 2 ·
How Far Does a Proton Travel Above a Current-Carrying Wire?
- kiwikahuna
- · Replies 10 ·
Tube train accelerating, uniform motion, and retarding stages
- matibtst
- · Replies 3 ·
How Fast Must You Drive to Experience a 210N Magnetic Force on Your Head?
- kiwikahuna
- · Replies 1 ·
Does Doubling Voltage Affect Drift Velocity According to Drude's Model?
- rakal
- · Replies 6 ·
Bucket hanging on a rope(Tension)
- TexasCow
- · Replies 2 ·
Free body diagram for each vehicle
- suxatphysix
- · Replies 3 ·
Trying to derive the rotational acceleration.
- PhillipKP
- · Replies 8 ·
Solving for R in a nanoparticle number density equation
- mbrmbrg
- · Replies 5 ·
Two Objects Sliding on a Frictionless Surface
- FilthyOtis
- · Replies 2 ·
How Do You Calculate the Specific Heat Capacity of an Object?
- dansics
- · Replies 1 ·
Child jumping onto rotating disk: angular speed
- dungtran88
- · Replies 2 ·
How quickly does argon expand when heated?
- s.p.q.r
- · Replies 5 ·
Calculating Projectile Motion: Rock Kicked From a Building
- davidatwayne
- · Replies 5 ·
A plane going into (temporary) orbit
- mujadeo
- · Replies 5 ·
Force Exerted on Person in an Elevator
- TexasCow
- · Replies 10 ·
What would be the ameter reading?
- AlokBehria
- · Replies 19 ·
Coefficient of kinetic friction between box and floor
- Edwardo_Elric
- · Replies 3 ·
How Much Force Is Needed to Push a Piano Up a Ramp?
- Edwardo_Elric
- · Replies 2 ·
What factors affect the work function of Aluminium Oxide?
- dala
- · Replies 1 ·
Increasing temperature of an organ pipe
- mike2007
- · Replies 3 ·
How Does Earth's Magnetic Field Affect a Charged Object in Motion?
- kiwikahuna
- · Replies 1 ·
Finding Area Under Curve with Stochastic Model
- kieran1black2
- · Replies 3 ·
No solution can be attempted without the mass of the block.
- mujadeo
- · Replies 16 ·
How Do Charge and Mass Affect Ion Acceleration in an Electric Field?
- mpswee2
- · Replies 1 ·
How to Write Proper Chemical Designations for Isotopes?
- kingbryant
- · Replies 1 ·
Wave reflection at the interface of two composite strings
- jairusgarcia
- · Replies 1 ·
Grade 10 Physics: Displacement of Speedboat
- HelloMotto
- · Replies 1 ·
What is the combined speed of linked model train cars with different masses?
- skatecash
- · Replies 2 ·
Three blocks with friction: which has greatest acceleration?
- emant777
- · Replies 2 ·
Alpha, beta and gamma decay equations
- kingbryant
- · Replies 1 ·
How Is Magnetic Force Calculated on an Electron in a Uniform Field?
- kiwikahuna
- · Replies 1 ·
How Do You Calculate Protons, Neutrons, and Electrons in Isotopes?
- kingbryant
- · Replies 1 ·
Two cars colliding at intersection - find velocity of wreckage
- skatecash
- · Replies 1 ·
Figuring out formula from graph
- AluminX
- · Replies 4 ·
Double-slit experiment question
- jairusgarcia
- · Replies 8 ·
Calculating Work Done by a Force on a Moving Object
- Abarak
- · Replies 5 ·
Low velocity impact craters in sand
- Liverpool8
- · Replies 1 ·
Car travelling around arc of circle
- boatman
- · Replies 3 ·
Tricky(?) resistance question in a series circuit
- exi
- · Replies 7 ·
Calculating Initial Velocity of an Object Thrown Vertically Upward
- bigjoe5263
- · Replies 4 ·
Solving for Coefficient of Kinetic Friction
- RedGuitar
- · Replies 2 ·
Solving Chemical Equations for Alpha, Beta, Gamma Decay
- kingbryant
- · Replies 2 ·
What does recoil speed mean in a cannon problem?
- MIA6
- · Replies 7 ·
Time dilation spacecraft travel problem
- Benzoate
- · Replies 1 ·
Half-Life Question: Thorium-234 (24 days)
- kingbryant
- · Replies 5 ·
How to determine X and Y coordinates of launched ball?
- TexasCow
- · Replies 10 ·
Conducting Plates, electrical fields w/ conductor.
- lemurballs
- · Replies 7 ·
Potential energy of two fixed point charges 0.25 m apart
- sirdeity
- · Replies 3 ·
Relative Velocity: Determine Tension in Elevator Strings
- emant777
- · Replies 2 ·
Pressurized Gas Canister Release Question
- s.p.q.r
- · Replies 9 ·
How Does Increasing Rope Tension Affect Wave Wavelength?
- mike2007
- · Replies 1 ·
Ideal gas equation pressure calculation units
- s.p.q.r
- · Replies 4 ·
How Do Additional Springs and Dampers Affect Vibration Absorption?
- foster182
- · Replies 10 ·
Radioactive Carbon Decay: Determining Age of Animal Remains
- dansics
- · Replies 2 ·
Direction of Electric Field in a Bent Rod with Uniformly Distributed Charges?
- trah22
- · Replies 4 ·
How Does Half-Life Affect Remaining Mass of a Radioactive Isotope?
- dansics
- · Replies 5 ·
Bullet, falling lead ball, and water heater temperature changes
- silverchain
- · Replies 6 ·
Steffan-Boltzmann's Equation: Epsilon Sigma T^4
- jairusgarcia
- · Replies 3 ·
Newton's Laws; ramps and pulleys
- glacialis
- · Replies 7 ·
Solving Current in a Circuit with Kirchhoff's Rules
- kiwikahuna
- · Replies 1 ·
What is the acceleration of a rocket during takeoff?
- MIA6
- · Replies 5 ·
Why does a tricycle with locked pedals move backwards when pulled forward?
- emant777
- · Replies 6 ·
Calculate Force Constant for Bungee Jumping
- blader324
- · Replies 2 ·
Continuity Equations and Bernoulli's Equation
- Penn_State21
- · Replies 1 ·
How does the continuity equation explain jet engine thrust?
- Penn_State21
- · Replies 1 ·
Positive charge in 250 cm³ of water: why sum protons per molecule
- PFStudent
- · Replies 1 ·
Final Equilibrium Temperature of Lead Shot Problem
- Confused_07
- · Replies 5 ·
What is the car's acceleration just before emerging from the turn?
- mujadeo
- · Replies 4 ·
Will charge sum to zero in a grounded capacitor circuit?
- go quantum!
- · Replies 2 ·
Understanding Weigh Meters and How to Simplify Pressing Movements
- fareezaw
- · Replies 2 ·
Velocity of ball thrown downward from 100 m roof
- libido_07
- · Replies 6 ·
Calculating Centrifugal Force for 200 Grams at 100 mph and 4' Radius
- hpdrifter
- · Replies 14 ·
Does Weighing a Floating Block Change the Combined Weight?
- brendan3eb
- · Replies 2 ·
Breaking into traffic at an intersection
- kieran1black2
- · Replies 1 ·