Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How Can I Find the Coefficient of Friction for an Object Sliding Down a Ramp?
- adc1122
- · Replies 8 ·
Why Does a Thrown Stone Have Constant Acceleration?
- Stripe
- · Replies 2 ·
Calculating Heights of Swinging Balls Colliding
- rpullo
- · Replies 7 ·
Calculate Height of a Ball Bouncing Off a Hard Floor
- Dark Visitor
- · Replies 15 ·
Work done on a box lowered at constant velocity
- SPHnoob
- · Replies 20 ·
How Do Newton's Laws Apply to Multiple Objects in Motion?
- tigerwoods99
- · Replies 9 ·
Proxima Centauri: 4.2 Light Yrs from Sun
- S1CkFiSh
- · Replies 3 ·
How Does Momentum Affect the Wavelength of a Particle?
- S1CkFiSh
- · Replies 1 ·
Standing waves and microwave ovens
- pianogirl
- · Replies 1 ·
Centripetal force experiment lab
- qomoco
- · Replies 1 ·
What speed do the electrons have when they strike the screen?
- S1CkFiSh
- · Replies 7 ·
Finding bullet speed from spring compression after embedding in block
- n.hirsch1
- · Replies 7 ·
Conservation of Angular Momentum in Skater's Spin Rate Change
- Devin Longo
- · Replies 3 ·
Two Questions on Archimedes's Principle
- .excel
- · Replies 2 ·
What is the Angular Momentum of a Rotating Disk?
- Dark Visitor
- · Replies 6 ·
Tension in ropes supporting a window washer on a scaffold
- ngay30_07
- · Replies 1 ·
Kinetic energy and gravitational potential energy questions
- Ilyo
- · Replies 3 ·
Does friction affect maximum velocity in circular motion?
- sippadi
- · Replies 6 ·
What is the tension in each piece of rope in an accelerating balloon system?
- endverse
- · Replies 1 ·
How can I find the center of mass of a system of point masses and rods?
- raychelle93
- · Replies 8 ·
Calculating Bird's Speed After Swallowing an Insect
- Dark Visitor
- · Replies 3 ·
How Much 235U is Used in a 2700MW Fission Reactor? Answer in kg/day
- desibabu90
- · Replies 9 ·
Two men carrying a 200 lb beam with unequal weight distribution
- NoBodyKnows
- · Replies 1 ·
How to Calculate the Area of a Thin Silver Sheet Using Density and Mass
- agadag
- · Replies 15 ·
What is the maximum power required for an ore car to accelerate up a mine shaft?
- mike_302
- · Replies 8 ·
A ball kicked from the ground (Projectile Motion)
- Chandasouk
- · Replies 2 ·
A tennis ball dropped vertically (Newton's Forces)
- Chandasouk
- · Replies 5 ·
Special Relativity: Time Dilation and the Twin Paradox
- the riddick25
- · Replies 2 ·
How do I calculate percent kinetic energy loss?
- bmed90
- · Replies 13 ·
Where Does Lost Energy from Golf Ball Go on Carpet?
- kashiark
- · Replies 4 ·
How Far Does a 3.5 Mg Engine Hoist in 4 Seconds?
- fball558
- · Replies 3 ·
Tensions in strings supporting a 5m bar with equal tensions and hanging mass
- chanella35
- · Replies 3 ·
Acceleration and displacement question?
- odie
- · Replies 3 ·
Calculate a diver's turns in air
- agadag
- · Replies 1 ·
What is the pressure of the fluid at a constriction in a vertical pipe?
- AlvinS
- · Replies 5 ·
What Happens to the Box's Velocity on a Rough Surface?
- odie
- · Replies 2 ·
When and where do two objects meet?
- odie
- · Replies 1 ·
Energy lost from a Flywheel to the Environment
- Poch
- · Replies 1 ·
B field due to a wire with an alternating current
- AxiomOfChoice
- · Replies 1 ·
Solving Expanding Problem with Iron and Aluminium Cylinders
- Skipe_
- · Replies 2 ·
Change in Pressure: Find Gas P (Pa) Experiment
- Devin Longo
- · Replies 3 ·
How Can I Solve for F and X Using Trigonometric Identities?
- fs93
- · Replies 1 ·
How Does Water Pressure Change with Depth and Altitude?
- Devin Longo
- · Replies 1 ·
Capacitors, how to find their cargo
- kliker
- · Replies 2 ·
Effect of m, A, k, & Phase Lag on w in Spring Mass System
- kevfar
- · Replies 2 ·
What Is the Final Temperature When Mixing Ice and Steam?
- Sirsh
- · Replies 1 ·
Charge distribution and linear quadrupole
- nosracsan
- · Replies 1 ·
How Does Gauss's Law Relate R and b When Flux Through a Disk is One Fourth?
- nosracsan
- · Replies 1 ·
How Do You Calculate the Frequency and Maximum Velocity of a Mass on a Spring?
- Kev1n
- · Replies 1 ·
Angular velocity and angular momentum of rod
- zhuyilun
- · Replies 1 ·
How do you find the mass of the Sun using data about planet periods and radii?
- sprizz
- · Replies 4 ·
Mechanics what force causes a ball rotate up an incline
- ronaldor9
- · Replies 1 ·
Block carrying a charge on a frictionless horizontal track
- nosracsan
- · Replies 1 ·
Mass Determination Using Torque and Equilibrium: A Meter Stick Experiment
- Master7731
- · Replies 2 ·
Calculating Electric Flux and Charge: A Problem-Solving Approach
- nosracsan
- · Replies 1 ·
Why does focal length equal half the radius for small mirror apertures?
- 1/2"
- · Replies 1 ·
Why is work done by conservative force U(initial) - U(final)?
- mike_302
- · Replies 4 ·
A Superball Colliding Inelastically with a Table
- MirandaLeigh
- · Replies 1 ·
What factors affect the impact force of a car crashing into a wall?
- nbjingle12
- · Replies 1 ·
Angular position vs. time graph
- mowassel
- · Replies 6 ·
Average Acceleration - Calculate Magnitude & Direction
- TyErd
- · Replies 5 ·
Calculating Time for Bus to Catch Anna - Motion Problem
- TyErd
- · Replies 7 ·
What is the Direction of the Electric Field Along CA?
- qazxsw11111
- · Replies 7 ·
Calculating Hydrostatic Blood Pressure in Different Body Positions
- robertsa
- · Replies 5 ·
Why doesn't differentiating v=2πr/T give centripetal acceleration?
- qazxsw11111
- · Replies 2 ·
How Does a Pendulum Convert Kinetic Energy to Potential Energy and Vice Versa?
- Idrees
- · Replies 1 ·
What differences are there in speeds of electromagnetic waves?
- Calcal4
- · Replies 1 ·
What is the tension in a rope accelerating a 1000 kg car upward at 0.80 m/s²?
- tigerwoods99
- · Replies 2 ·
Are stages 2-3 and 1-4 adiabatic in the OTTO cycle?
- JakePearson
- · Replies 3 ·
How Is the Total Energy of Photons Calculated in Electron-Positron Collisions?
- magma_saber
- · Replies 4 ·
Finding Viscous Damping Constamt
- Trentonx
- · Replies 1 ·
Reviewing for my exam (Newton question)
- Chandasouk
- · Replies 1 ·
A football being kicked through air
- Chandasouk
- · Replies 2 ·
How Does Conservation of Energy Apply to Motion Down a Hill?
- mike_302
- · Replies 1 ·
Determining distance of travel with friction acting on a car.
- quinntan
- · Replies 4 ·
Electromagnetic induction - which graph is correct?
- joeykeys
- · Replies 3 ·
Calculating Potential Energy of a Chain
- prepapphysics
- · Replies 1 ·
How Is Instantaneous Power Calculated in Physics Problems?
- brickaney
- · Replies 1 ·
RLC Circuits - Resonant Frequency, Power
- fogel1497
- · Replies 2 ·
How Much Energy Must a Satellite Release to Enter Jupiter's Orbit?
- gpax42
- · Replies 3 ·
Find angular velocity from constant linear velocity
- dentulousfing
- · Replies 1 ·
Two objects launched into the air by identical springs
- fattydq
- · Replies 3 ·
Natural angular frequency of a bridge
- Linus Pauling
- · Replies 1 ·
How Is Fluid Pressure Calculated in a U-Tube Experiment?
- Linus Pauling
- · Replies 1 ·
What is the graph of power generator output voltage?
- joeykeys
- · Replies 1 ·
Total Angular Momentum of the Earth
- v3r
- · Replies 5 ·
How Is Work Done by Air Resistance Calculated in a Falling Raindrop Scenario?
- PepeF.
- · Replies 1 ·
Elastic Collision of Two Particles: Solving for Final Velocity
- v3r
- · Replies 3 ·
Relating pressure and height in a container
- Linus Pauling
- · Replies 3 ·
Mechanics Newton's 2nd law question
- pianogirl
- · Replies 1 ·
What is the Kinetic Energy of Bullets Fired at Different Speeds?
- PepeF.
- · Replies 2 ·
Atomic Physics - rest mass of Deuterium
- joeykeys
- · Replies 1 ·
Acceleration as a function of distance to Velocity?
- Berdi
- · Replies 2 ·
Work Done by Worker: Calculating Force of a Pushed Cart
- PepeF.
- · Replies 1 ·
How Do You Calculate Normal Force on an Inclined Plane in a Moving System?
- tigor
- · Replies 1 ·
How Do You Calculate Buoyancy and Density for Different Blocks?
- JJBrian
- · Replies 4 ·
Finding height and range of a projectile
- !!!
- · Replies 9 ·
Question that has me stumped. Need an answer to make an A
- tdcman92
- · Replies 19 ·
Question Regarding Bubble in Kerosene Tank
- modulus
- · Replies 3 ·
Why Is My Approach to Calculating Moment of Inertia Change Incorrect?
- simpleton
- · Replies 4 ·