Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculating Outward Force of a Tornado on a Wall
- kiwikahuna
- · Replies 5 ·
Confusion with Hailstone Collision Momentum Calculation
- kiwikahuna
- · Replies 4 ·
What is the magnitude of buoyant force acting on the block?
- mike2007
- · Replies 9 ·
What is the speed of the released softball in circular motion?
- Steveku
- · Replies 9 ·
What is the buoyant force acting on the rock?
- mike2007
- · Replies 2 ·
Inclined ramp, object moving down towards spring
- UppityHorse
- · Replies 3 ·
Help with derivation - involves cross & dot products
- lets_resonate
- · Replies 4 ·
Young's Modulus Calculation for Nylon Rope Cross Sectional Area
- kiwikahuna
- · Replies 2 ·
Finding Centre of Gravity | Calculating Moments and Work Done
- crpcrpcrp
- · Replies 4 ·
Momentum of falling objects on impact; p = mv not working?
- exi
- · Replies 11 ·
What is the Precession Frequency of a Rotating Bicycle Wheel?
- kiwikahuna
- · Replies 2 ·
Thermal energy in a sample of candle wax?
- crpcrpcrp
- · Replies 1 ·
How long does it take for the train to stop moving?
- blader324
- · Replies 9 ·
Determining Magnetic Field in a Uniform Electric & Magnetic Field
- jesuslovesu
- · Replies 3 ·
What Are the Approximate Wavelengths of Different Colors?
- prasanaharani
- · Replies 2 ·
What Is the Boat's Average Acceleration, Velocity, and Displacement?
- suxatphysix
- · Replies 4 ·
How to maximize your height in a basketball jump shot?
- nophun6
- · Replies 14 ·
Conservation of momentum and wood ball problem
- Amria
- · Replies 1 ·
Can anyone explain to me Kepler's laws
- Gear300
- · Replies 4 ·
Moment of inertia for a cylinder at a distance from rotation axis
- pinodk
- · Replies 1 ·
Solving the Energy Conservation Equation for Flywheel & Mass
- WildFlower
- · Replies 1 ·
Determine how high the ball is (from the ground)
- Demonsthenes
- · Replies 1 ·
How Do You Calculate Final Temperatures in an Adiabatically Isolated Cylinder?
- ginger_jj
- · Replies 1 ·
Find the unit vector perpendicular to a and b
- anantchowdhary
- · Replies 8 ·
Standing Waves in Strings: Examining Amplitude, Node Number, and Wave Speed
- BMWPower06
- · Replies 5 ·
Are the Equations for Normal Force on an Inclined Plane the Same?
- Gear300
- · Replies 4 ·
Reading the position - time graph:
- Edwardo_Elric
- · Replies 5 ·
Average acceleration of an astronaut
- Edwardo_Elric
- · Replies 2 ·
How Does a Single-Phase Generator Calculate EMF?
- danago
- · Replies 1 ·
Conservation of momentum on bike
- Momentum09
- · Replies 2 ·
Creative Questions on Magnetism
- enadiz
- · Replies 12 ·
Physics Question: Airspeed & Wind Velocity | 13 Marks
- SkipToMaLou
- · Replies 1 ·
What is Ball B's Speed After an Elastic Collision with Ball A?
- stathike
- · Replies 17 ·
Solving Sound Intensity with 2 Shut-Off Engines
- physicsnewby
- · Replies 4 ·
Wavelength of a photon homework
- Fiza43
- · Replies 2 ·
Pendulum & Torque HW: Calc Torque at 4.6 & 15.6 Degrees
- kiwikahuna
- · Replies 5 ·
Compton Effect: Finding Final KE of Electron
- stinger302
- · Replies 2 ·
Calculate Work Homework: Hemispherical Tank Full of Water
- norcal
- · Replies 1 ·
Very basic acceleration question (typo?)
- mujadeo
- · Replies 1 ·
How Do You Calculate the Inclination of a Hill and Acceleration of a Cyclist?
- zawhein
- · Replies 2 ·
How Is the Beat Frequency Calculated When a Train Approaches a Station?
- physicsnewby
- · Replies 1 ·
Reading acceleration vs. time graphs
- exi
- · Replies 7 ·
Finding the Mass of a Meter Stick Using Torque Equations
- hiddenlife5009
- · Replies 3 ·
Displacement, time and average velocity
- Equilibrium
- · Replies 1 ·
Falling to Earth from 100,000 Miles - Can You Die by Impact?
- Evil_Klown
- · Replies 4 ·
What Is the Average Speed of a Rabbit in a 4 km Race?
- rash219
- · Replies 6 ·
Potential + Kinetic Energy Question
- NDiggity
- · Replies 4 ·
Gen Physics HW Help: Ideal Gas Law and Temperature Change
- pyizzle
- · Replies 2 ·
How to Calculate the Time and Weight of a Ball Rolling Down a Ramp
- hover
- · Replies 10 ·
How Can an Electron Microscope Manipulate an Electron Beam in 2D Motion?
- spizma
- · Replies 2 ·
What is the electro-static energy of a sphere with uniform charge density?
- Parallel
- · Replies 3 ·
Help With 15.15 & 15.16: A Capacitor + Resistor Circuit
- CathyLou
- · Replies 3 ·
Bernoulli Application: Explaining How a Dime Blows Across a Table
- alik
- · Replies 1 ·
RMS Voltage with a DC Offset: What is the Impact?
- flash
- · Replies 1 ·
How Is Air Pressure Calculated at the Center of a Hurricane?
- physicsnewby
- · Replies 13 ·
Solving Physics Assignment: Car Acceleration in Uniform Plane
- physicsA380
- · Replies 5 ·
Rotational acceleration on merry go round
- mike2007
- · Replies 1 ·
Conservation of energy between the mass and the spring
- Momentum09
- · Replies 1 ·
Angular acceleration, friction, and turntables
- exi
- · Replies 17 ·
What Are Field Lines in Vector Fields?
- imy786
- · Replies 3 ·
Solving Vector Problems: Finding Magnitudes and Components
- snoggerT
- · Replies 10 ·
Solving a Horizontal Arc HW Problem: Centripetal Acceleration
- exi
- · Replies 3 ·
Standing Waves on a String: True or False?
- BMWPower06
- · Replies 2 ·
Circular Motion of Car in Vertical Bridge
- hardyivan007
- · Replies 7 ·
How does wind acceleration affect the speed and direction of a sailboat?
- ere
- · Replies 5 ·
Length contraction & time dilation
- monp
- · Replies 10 ·
Attraction and Repulsion Forces Between Magnets
- eek3386
- · Replies 4 ·
Questions about principle of moments
- crpcrpcrp
- · Replies 2 ·
Coefficient of Friction: Exceeding the Limits?
- gandharva_23
- · Replies 6 ·
Possible webpage title: Defining Inertial Reference Frames in Classical Physics
- lets_resonate
- · Replies 16 ·
How Do You Calculate the Tension in a Rope Holding a Leaning Beam?
- Fusilli_Jerry89
- · Replies 1 ·
Block going up a frictionless incline
- Momentum09
- · Replies 1 ·
What is Snell's Law and How is it Used?
- grscott_2000
- · Replies 3 ·
How Much Heat to Turn Ice at -10°C into Water at 20°C?
- navy_bison
- · Replies 5 ·
Why Does Friction Act Towards the Center in Circular Motion?
- Gunman
- · Replies 6 ·
Linear and Angular Motion and Friction Q.2a & b
- Sparky500
- · Replies 6 ·
Inclined ramp inside an accelerating train
- jul_greenberg
- · Replies 5 ·
What is the mass of the planet?
- Unknown221
- · Replies 10 ·
What is the magnitude of the vector product?
- Equilibrium
- · Replies 10 ·
Acceleration of object in a moving lift
- Kushal
- · Replies 3 ·
Can AC Motors Function as AC Generators Just Like DC Systems?
- unique_pavadrin
- · Replies 3 ·
Changing String Frequency: Thinner/Thicker/Longer/Shorter/Tighter/Looser?
- BMWPower06
- · Replies 4 ·
Calculate the percentage difference
- physicsnewby
- · Replies 4 ·
Find the spring constant 'k' by using the slope of my graph
- physicsnewby
- · Replies 4 ·
Calculating Replacement Resistance Rv (Ohm)
- SD43
- · Replies 7 ·
Converting W²/NJHzt to MKS: Step-by-Step Guide for Physics/Math Homework"
- SkipToMaLou
- · Replies 4 ·
Homework: CO2 Volume, Pressure, Temperature, and Moles
- uniidiot
- · Replies 8 ·
Point charge and electric potential
- uniidiot
- · Replies 2 ·
Calculating Acceleration and Velocity of a Weather Rocket Launch
- ere
- · Replies 10 ·
Changing position in circular motion
- alik
- · Replies 3 ·
Exploring the Coulomb Force: Vectorial & Non-Vectorial Forms
- black_kitty
- · Replies 1 ·
How Do You Calculate the Density of a Diffraction Grating?
- kinst
- · Replies 2 ·
What is the time constant for an RC circuit discharging?
- t_n_p
- · Replies 15 ·
What Is the Relationship Between Friction and Heat?
- black_kitty
- · Replies 2 ·
Potential Energy Function and Force
- kiwikahuna
- · Replies 1 ·
Calculating Extra Work for Hooke's Law Spring
- Momentum09
- · Replies 1 ·
Electric Fields in Parallel Plates
- salman213
- · Replies 5 ·
Frequence and wavelength of a photon
- kinst
- · Replies 3 ·
Electrostatics of ping pong ball question
- ploppers
- · Replies 4 ·