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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Stopping Distance Friction Problem
- RebelAngel
- · Replies 3 ·
Two Uniform Spheres in Deep Space
- isabellef
- · Replies 7 ·
[symbolic] Linear uniform charge density (E field at a point)
- syntroniks
- · Replies 3 ·
Heating a house, energy loss to surroundings
- jbphysics
- · Replies 7 ·
Calculating Thermal Expansion of a Cookware Pot
- n.hirsch1
- · Replies 4 ·
Radiation - solving for Q - Stefan-Boltzmann law
- sportzmaniac
- · Replies 2 ·
Specific Heat Problem and boiling water
- clutch12
- · Replies 4 ·
Banked Curve Simple Conceptual Problem
- Fireworks
- · Replies 3 ·
Calculating Decibel Increase to Reach Pain Level
- ryty
- · Replies 3 ·
Fluid flow question using bernoulli's and continuity equations
- lilmul123
- · Replies 3 ·
Water Rocket - Rate at which water exits
- NMS09
- · Replies 2 ·
What is the velocity of the ball before the collision?
- UMDstudent
- · Replies 7 ·
Mass M decaying into two photons with tan(θ) = 1/2
- mathman44
- · Replies 14 ·
Calculating Work Done on a System
- KatlynEdwards
- · Replies 2 ·
Temperature Fusion (heat gain = heat loss)
- aodhowain
- · Replies 8 ·
What Is the Period of Oscillation for a Hoop Suspended by Its Perimeter?
- writelu
- · Replies 1 ·
Center of gravity of a stack of coins
- KatlynEdwards
- · Replies 2 ·
Find Speed of Cylindrical Shell on Incline-Loop
- chrisfnet
- · Replies 2 ·
How to show algebraically that initial and final velocity are equal in projectile motion
- shocklightnin
- · Replies 3 ·
Solve Circuit Resonance Homework: 50mA Current & 30mA Frequency Change
- Seannation
- · Replies 2 ·
Calculate Area of Regular Pentagon - 215 ft Perimeter
- maverick99
- · Replies 11 ·
Finding tension pulling a suitcase at 45 degrees with friction
- rokas
- · Replies 13 ·
Can Time Crystals and Black Hole Theories Redefine Physics?
- argigle
- · Replies 1 ·
Teaching Discrepancy on Centripetal Force?
- wmrunner24
- · Replies 9 ·
Relationship between distance traveled and momentum
- abpandanguyen
- · Replies 19 ·
Thermistor's temperature problem
- matt_crouch
- · Replies 1 ·
Finding tension in a rope system
- rokas
- · Replies 1 ·
Rotating steel rod with balls slowing due to friction
- seraphimhouse
- · Replies 4 ·
Calculating Tension and Total Force in Equilibrium Torque System
- joemama69
- · Replies 2 ·
Does Halving Molecules Double RMS Speed?
- sArGe99
- · Replies 1 ·
Work done in an adiabatic process
- Cade
- · Replies 4 ·
Why is the work done against friction not equal to the force times distance?
- eureka_beyond
- · Replies 10 ·
Ratio of gravitational/repulsive electrostatic force
- crybllrd
- · Replies 3 ·
Graphing conves lense relationships to find focal lenght with slope
- pices_zodiac
- · Replies 1 ·
What is the velocity of a projectile when it hits the ground?
- 1irishman
- · Replies 10 ·
Height of cliff from radio wave interference at 25 degrees
- Jacob87411
- · Replies 6 ·
Simple harmonic motion frictionless block problem
- triplel777
- · Replies 2 ·
What percentage of the total mass of the pendulum is in the uniform thin rod?
- jayced
- · Replies 1 ·
Two loudspeakers, an oscillator and constructive interference at a point?
- Cade
- · Replies 1 ·
Help Explaining Newton's Third Law
- ediggity
- · Replies 8 ·
Minimum horizontal force to slide a 4 kg block up a 37° ramp
- Toila
- · Replies 1 ·
Solving for Velocity: Elastic Collision of Two Balls with Different Mass in m/s
- drkidd22
- · Replies 1 ·
Work on a baseball being caught by a catcher
- Symon
- · Replies 9 ·
Centripetal Force Experiment question
- Stardrops
- · Replies 3 ·
Sound intensity at distance and radiated power from spherical source
- sonutulsiani
- · Replies 4 ·
Finding wavelengths of musical notes given their frequencies
- ryty
- · Replies 3 ·
How far away will the ball land?
- 1irishman
- · Replies 10 ·
Understanding Centripetal Force: Homework Help and Formulas
- PinkEraser
- · Replies 9 ·
What angle does it scatter at if the yellow ball is scattered
- drkidd22
- · Replies 12 ·
Measuring Projectile Velocity Using Block Deviation
- Gavroy
- · Replies 1 ·
Projectile Problem No air resistance(At what velocity was object thrown?)
- 1irishman
- · Replies 10 ·
How Do Projectile Angles Affect Velocity at a Fixed Height?
- merzperson
- · Replies 3 ·
Gravitation potential energy without hieght
- ncote
- · Replies 5 ·
The max height the body reaches when this body is thrown verticaly upwards
- mmoadi
- · Replies 1 ·
Solenoid magnetic field, self-inductance and induced emf
- Fazza3_uae
- · Replies 6 ·
Expectation value, harmonic oscillator
- broegger
- · Replies 6 ·
Calculating angular velocity of a ratatable bar in inelastic collision
- mmoadi
- · Replies 6 ·
Rolling Friction: Static, Kinetic, or Rolling?
- sArGe99
- · Replies 1 ·
What is the Equilibrium Position of a Mass in a Fluid with Varying Density?
- fluidistic
- · Replies 14 ·
Solving Circuit Problem - Q=CV, V=IR
- chronicals
- · Replies 1 ·
Calculating Spring Compression for Escape Velocity from Spinning Asteroid
- clutch12
- · Replies 2 ·
Solve Stiffness Question: Work to Change Spring Length
- clutch12
- · Replies 2 ·
Maximum induced emf with exponentially decaying magnetic field
- Fazza3_uae
- · Replies 4 ·
Extremely Hard Physic Question (Ray diagram)
- Nope
- · Replies 8 ·
What Magnetic Field Strength Balances Gravitational Force on a Speeding Proton?
- misomiso
- · Replies 1 ·
What is the final velocity of the two balls in an elastic collision?
- Saladsamurai
- · Replies 2 ·
Exact wave interference distances
- Calcoolius
- · Replies 9 ·
Why would an object become lighter under water?
- Kaxa2000
- · Replies 2 ·
Gravity Problems: Equilateral Triangle and Mile-High Building
- Reti
- · Replies 2 ·
How Much Energy is Needed to Separate Two Atoms in a Vibrational State?
- PolyFX
- · Replies 1 ·
Skeet hit by pellet at maximum height
- joemama69
- · Replies 9 ·
Calculating Doppler Effect: Car Speed and Frequency Analysis
- sonutulsiani
- · Replies 15 ·
Calculate Moment of Inertia - Stick and Ball
- vm310
- · Replies 2 ·
Solving a Frictionless Pulley Problem: Acceleration of m2
- physicsbro
- · Replies 1 ·
Finding Acceleration of Masses in Elevator
- yoni162
- · Replies 2 ·
What is the magnitude and direction of the electric field?
- johnnyies
- · Replies 4 ·
Spring constant for pinball plunger launching 90g ball
- wmrunner24
- · Replies 10 ·
Sound intensity using decibel values
- 123helpme
- · Replies 2 ·
Planetary Nebulae and emission lines
- knowlewj01
- · Replies 1 ·
Comparing rotational energy of five objects with equal mass
- physicsbro
- · Replies 1 ·
Elastic potential energy completely lost to projectile?
- Subdot
- · Replies 2 ·
How Do You Calculate Voltage Across Vcd in a Capacitor Circuit?
- chronicals
- · Replies 1 ·
Angular Velocity Problem - Merry Go Round
- vm310
- · Replies 4 ·
Satelite orbiting earth in a circular path
- cortozld
- · Replies 2 ·
Which Susceptibility of Bismuth Should I Calculate?
- MaxManus
- · Replies 3 ·
How Does Wind Force Affect Flagpole Tension?
- Sakura22
- · Replies 1 ·
How Much Lift Force Do Airliner Wings Generate at Cruising Speed?
- bleedblue1234
- · Replies 11 ·
Projectile Motion with No Air Resistance
- 1irishman
- · Replies 5 ·
Problem with resolution of forces
- sachin123
- · Replies 14 ·
Charged particle between parallel plates: force and kinetic energy
- chanderjeet
- · Replies 2 ·
Finding initial velocities from skid marks after a collision
- 123bob123
- · Replies 6 ·
Problem finding Spring Constant
- Ytaipsw
- · Replies 4 ·
How Fast Will the Object Be Falling When It Passes Ken's Window?
- mt05
- · Replies 1 ·
Advanced Doppler effect questions
- Frozen_Mind
- · Replies 2 ·
Falling object: time before it reaches the ground and its position
- ellyb
- · Replies 1 ·
Bus and Sports Car Kinematics Problem
- lovemake1
- · Replies 3 ·
How to Calculate Forces Between Two Boxes on a Frictionless Surface?
- DeathByVirus
- · Replies 12 ·
Time Dilation and aging Problem
- funkym0nkey
- · Replies 1 ·
Question on wavelength using the two slit experiment
- meeklobraca
- · Replies 5 ·