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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Equilibrium of Hanging Bag of Cement: Finding Tensions in Wires
- Sheneron
- · Replies 4 ·
Net gravitational force on three particles and between bowling and billiard balls
- cmwestbr
- · Replies 3 ·
Solved: Ballistic Pendulum Velocity Calculation
- Arejang
- · Replies 13 ·
Tension in rope between Michelle and Chris being towed
- SPH4U
- · Replies 4 ·
How Does Free Fall Affect a Ball's Motion and Vector Math?
- mustangburch
- · Replies 1 ·
Calculating Speed in a Tug-of-War on Ice
- iwonde
- · Replies 5 ·
Frictional forces of pushing a box
- hsestudent
- · Replies 6 ·
Electron path through three regions with alternating magnetic fields
- fatcat39
- · Replies 1 ·
Capacitor in Series and Parallel
- Heat
- · Replies 6 ·
How to Prove Gamma and Beta Function Identities?
- mkbh_10
- · Replies 1 ·
Earth's Average Speed: Calculating its Orbit around the Sun
- Nixon
- · Replies 3 ·
Understanding Gauss's Law and Electric Flux
- cryptoguy
- · Replies 6 ·
What was the average force exerted by the ball on the glove?
- znz786
- · Replies 1 ·
How far did the bike travel with acceleration and constant speed?
- razored
- · Replies 10 ·
Solve Rotation Q: Period of Small Oscillations for Rolling Cylinder
- joker_900
- · Replies 1 ·
Kinematic motion problem. (acceleration, displacement, velocity)
- ballerina_tee
- · Replies 17 ·
Why are Freezers Located at the Top of Units?
- sdb16
- · Replies 2 ·
Force on a Charged Bead Near a Line Charge
- lat3ralus65
- · Replies 3 ·
How Do Steam Temperature and Exhaust Temperature Affect Steam Engine Efficiency?
- scar123
- · Replies 1 ·
Momentum and impulse and other kinetic questions
- JWHooper
- · Replies 8 ·
Find the Speed and Direction of a Wave with Constants A, B, and C
- azatkgz
- · Replies 3 ·
Singing in Helium: How Density Affects Resonance Frequency
- azatkgz
- · Replies 3 ·
Acceleration, displacement, Kinematics Question
- ballerina_tee
- · Replies 8 ·
Centrifugal Force: Are these equal?
- ad_alta
- · Replies 2 ·
Springs and Hooke's Law: Understanding Force and Work Calculations
- rolodexx
- · Replies 4 ·
How does buoyancy affect the scale reading when an iron block is submerged in oil?
- jesuslovesu
- · Replies 3 ·
Finding the tension and components
- cece
- · Replies 5 ·
Fly in Truck: How Can Flies Fly at High Speed?
- uprootedferre
- · Replies 1 ·
Velocity of Spring: Solved 2m/s
- Batman4t
- · Replies 4 ·
Work from a constant force: is this diagram correct?
- nightshade123
- · Replies 17 ·
Conservation of energy or conservation of momentum
- salami
- · Replies 2 ·
Find m, the mass of the particle Assume friction can be ignored
- shenwei1988
- · Replies 6 ·
How High Must the Sides of a Steel Boat Be to Float?
- Metalsonic75
- · Replies 5 ·
Force on the sides of a swimming pool, differeniation
- TFM
- · Replies 13 ·
Lorentz contraction and relativistic mass for a dog at 99.9% light speed
- Liger20
- · Replies 3 ·
Simple volume flow rate calculation
- Metalsonic75
- · Replies 2 ·
Water pressure at a lower point in pipe with changing diameter
- TFM
- · Replies 4 ·
Which statement is true in the two-body case but false in the three-body case?
- lugita15
- · Replies 5 ·
Equivalent Resistance in partial parallel/series cicuit
- thatgirlyouknow
- · Replies 5 ·
Hollow cylinder rolling up a 15 degree incline
- Carpe Mori
- · Replies 1 ·
How Does the Angle of a Lawnmower Handle Affect the Force Needed to Push It?
- gillyr2
- · Replies 8 ·
Capacitance in series and parallel circuit
- thatgirlyouknow
- · Replies 3 ·
Mass of a block via kinetic friction
- AnkhUNC
- · Replies 3 ·
A person jumps from the roof...Calculating Leg Force during Deceleration
- esong
- · Replies 4 ·
Simple Harmonic Motion position and velocity problem
- madchemist
- · Replies 3 ·
Needle and pressure (Bernoulli's equation?)
- ~christina~
- · Replies 6 ·
Electric potential no clue and midterm in 2 and a half hours
- cemar.
- · Replies 3 ·
Force on an object being dragged
- jj8890
- · Replies 2 ·
Three masses on a table with hanging weights: find acceleration of m2
- StephenDoty
- · Replies 7 ·
How Far Does a Rocket-Powered Hockey Puck Land from the Base of a Table?
- truknowledge8
- · Replies 3 ·
Solving Force of Charges Problem - 1nC Charge in Middle
- cemar.
- · Replies 1 ·
Name a physical quantity used to measure optical density of a Medium
- devrudra07
- · Replies 2 ·
Resistivity - Limiting factors?
- cbs27
- · Replies 1 ·
Determine the smallest diameter rope that can safely support
- StephenDoty
- · Replies 1 ·
Calculating Force Problems on Toy Car
- shenwei1988
- · Replies 2 ·
What is Angular Acceleration and How is it Calculated in a Cycling Scenario?
- adstroud
- · Replies 2 ·
Concept behind Three Block Friction Problem with Applied Forces?
- physixguru
- · Replies 2 ·
Deriving Speed at an Inclined Plane
- zcabral
- · Replies 7 ·
Answering General Questions: Electric Field, Potential, Capacitors
- moorec32
- · Replies 1 ·
Ideal Gas in Cylinder with Piston (Conceptual)
- fiestyman001
- · Replies 2 ·
Quick physics double check question
- Melchior25
- · Replies 1 ·
Motion of object (simple harmonic motion?)
- ~christina~
- · Replies 3 ·
What is the distance travel by the ball when the time is 1 sec?
- huagulong
- · Replies 7 ·
How Do You Calculate Vector Operations for Angled Displacements?
- chocolatelover
- · Replies 4 ·
Calculating Velocity of a 2.0kg Object Subjected to Time-Varying Force at t=4s
- Baaadshah87
- · Replies 1 ·
Finding magnitude and direction of vector sums with component method
- chocolatelover
- · Replies 8 ·
Refractive Index Units - What Units are Used to Measure Refractive Index?
- Mattofix
- · Replies 2 ·
Tangential velocity needed for Wall of Death ride with given friction
- am08
- · Replies 1 ·
Solve Kinematics Problem: 3x Max Height, Find Angle
- Johnny Blade
- · Replies 2 ·
How Does a Cockroach Affect the Angular Speed of a Lazy Susan?
- Oblio
- · Replies 5 ·
Tension of a string passing over a pulley
- zcabral
- · Replies 1 ·
How Do You Calculate the Power Emitted by a Sound Source?
- Eternalmetal
- · Replies 2 ·
What is the tension in the string at the bottom of the swing?
- lbutscha
- · Replies 3 ·
10m Steel Wire Length/ +20 Degrees C
- Kaleb
- · Replies 4 ·
Solving Collisions Problem: Velocity of Third Fragment
- bondgirl007
- · Replies 5 ·
How Can Capacitance Be Halved in a Parallel-Plate Capacitor?
- Heat
- · Replies 2 ·
Question: Finding Current in Series Circuit with Household Appliances
- yuvlevental
- · Replies 4 ·
How Long Before a Dropped Compass Hits the Ground from a Rising Balloon?
- gmunoz18
- · Replies 4 ·
Acceleration and terminal speed problem
- jmwachtel
- · Replies 9 ·
Does an Electric Field Between Two Conductors Guarantee a Current?
- Seda
- · Replies 3 ·
Finding Factors of Numbers with a TI-83 Calculator
- ted1025
- · Replies 2 ·
Calaculate Mass of Cube submerged in oil and water
- TFM
- · Replies 6 ·
Finding current in a circuit with multiple batteries and resistors
- BuBbLeS01
- · Replies 5 ·
Angles from the positive x-axis
- chocolatelover
- · Replies 4 ·
Find Acceleration of Blocks on Table [SOLVED]
- jesuslovesu
- · Replies 1 ·
Finding the sum of two 3 m displacement vectors at 30°
- chocolatelover
- · Replies 4 ·
How High Can a 12V Battery Lift an 8.1 kg Mass with a 90% Efficient Motor?
- pcandrepair
- · Replies 3 ·
What are the Components of Acceleration in a Vertical Circle?
- jmwachtel
- · Replies 11 ·
Physics 11 Net force and Acceleration
- anOldMan
- · Replies 1 ·
Finding the power supplied by a battery
- snoweangel27
- · Replies 3 ·
Why does the applied force affect normal force differently for m1 and m2?
- LM06
- · Replies 1 ·
Internal energy, thermodynamics
- Niles
- · Replies 3 ·
Finding kinetic friction from a spring-launched block
- anastasiaw
- · Replies 7 ·
How Does Wave Propagation Behave at the Junction of Iron and Copper Strings?
- sadhu
- · Replies 1 ·
Power supplied by battery in a multiple loop Circuit
- snoweangel27
- · Replies 5 ·
E-field between insulator and conductor
- ross
- · Replies 1 ·
What are the units of k in t = k√(h)/d²?
- Sorry!
- · Replies 3 ·
How Do I Calculate the Potential Difference in a Capacitor with a Given Charge?
- lettertwelve
- · Replies 10 ·
What is the tension in a rope twirling a 1.5 kg rock in a frictionless circle?
- psychfan29
- · Replies 2 ·