Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Simple problem in Mechanics, weird differential equation
- dujardin
- · Replies 4 ·
Magnitude of initial acceleration
- sonastylol
- · Replies 3 ·
E-field at the center of a semicircle
- pcandrepair
- · Replies 17 ·
What electric field strength will cause the bead to hang suspended in the air?
- cemar.
- · Replies 1 ·
Torque change of a rod with unequal masses
- Metalsonic75
- · Replies 5 ·
What Force is Needed on the Top Link for 5-Link Chain Acceleration?
- NAkid
- · Replies 2 ·
How do forces act during a collision between a car and a large truck?
- NAkid
- · Replies 9 ·
Finding Mass of Wooden Block Without Masing It
- Riogho
- · Replies 16 ·
What Happens to Two Blocks After an Elastic Collision on a Slope?
- DavidHarmon
- · Replies 1 ·
Electric Force, linear charge density
- DFWDraco76
- · Replies 3 ·
Phase difference for two offset slits in double slit setup
- dopher
- · Replies 1 ·
Force required to prevent something from moving on a slant
- chemboy
- · Replies 3 ·
Finding path length L to phase shift two different wavelengths
- opticaltempest
- · Replies 8 ·
How Do You Calculate the Time Ratio for Two Jumping Heights on a Trampoline?
- ian_durrant
- · Replies 4 ·
Heat released from condensing steam
- redfire67
- · Replies 5 ·
Latent Heat of Zinc Sublimation at 600K
- thetruenash
- · Replies 1 ·
Magnitude of Single Displacement:
- sonastylol
- · Replies 4 ·
Micro/macro collection between electrostatic
- 743344
- · Replies 3 ·
How Do You Calculate the Moment of Inertia for Welded Disks?
- jhwatts
- · Replies 5 ·
Net electrostatic force on charge between parallel plates
- jh12
- · Replies 5 ·
Simplifying Equation With Square Root
- kwikness
- · Replies 3 ·
How Do You Calculate Time and Distance in Free Fall Physics Problems?
- Cathartics
- · Replies 13 ·
Solving for Depth, Velocity, and Initial Velocity in a Free Fall Challenge
- Cathartics
- · Replies 10 ·
Solve Equilibrium Problem: 4 Men Carrying Beam, Calculate Forces
- yasar1967
- · Replies 2 ·
How to Calculate the Correct Angle and Time to Cross a River in a Powerboat?
- chaudown
- · Replies 1 ·
Displacement of a vector (Really simple)
- AnkhUNC
- · Replies 4 ·
Initial speed for cannon projectile from 11.23m height
- vanquish
- · Replies 18 ·
Calculating Capacitance for a Light-Bulb and Capacitor Circuit
- A90
- · Replies 4 ·
Simple Conservation of Momentum Question
- smashingtime
- · Replies 9 ·
Calculating Distance of a Falling Tuning Fork using the Doppler Effect
- Potato-chan
- · Replies 5 ·
How to Determine a Grasshopper's Jump Speed and Cliff Height?
- okiedokie07
- · Replies 16 ·
Electric Field due to Rectangular Sheet
- teleport
- · Replies 14 ·
What is the velocity of the incident ball after the perfectly elastic collision?
- niki4d
- · Replies 8 ·
Calculating Frequency of Hydrogen Light in a Moving Galaxy
- _Mayday_
- · Replies 1 ·
Possible What is the angle between these two vectors?
- sonastylol
- · Replies 7 ·
Can the tanker avoid hitting the reef with its engines back on?
- ledhead86
- · Replies 9 ·
Projectile motion from 7 to 10 m height at 30°
- Saladsamurai
- · Replies 6 ·
How Do I Calculate Normal Force for a Wooden Block?
- vertciel
- · Replies 1 ·
Kinematics: Average Deceleration Underwater
- RedBarchetta
- · Replies 2 ·
Negative rod to uncharged metal ball:
- sonastylol
- · Replies 6 ·
How to Calculate Charge on a Balloon After Losing Electrons
- sonastylol
- · Replies 2 ·
Point charge and a plane question
- joker_900
- · Replies 1 ·
VERY simple Velocity vs time graph interpretation
- seanistic
- · Replies 14 ·
Four charges at corners of a square and electrons canceling gravity
- itzxmikee
- · Replies 18 ·
Shuffleboard disk accelerated to 4.2 m/s over 1.4 m, then decelerates at 2.7 m/s²
- Cathartics
- · Replies 6 ·
A-Level Sensor Coursework: Measuring Sensitivity with Basic Equipment
- SirAethelred
- · Replies 3 ·
Graphing the thin lens equation with measured di and do values
- Larrytsai
- · Replies 3 ·
How to Find the Angle of a Jetliner's Turn?
- torresmido
- · Replies 4 ·
Why is the E field at 1m zero inside a shell with distributed charge?
- memow
- · Replies 1 ·
Calculate Free Energy for Formation
- mrlucky0
- · Replies 1 ·
How many Earths would fit into the Sun?
- torresmido
- · Replies 1 ·
How do you know if total internal reflection occurs?
- Larrytsai
- · Replies 2 ·
What Is the Maximum Height a Rocket Will Reach After Engine Failure?
- starchild75
- · Replies 19 ·
When to use total distance/total time vs. average of two velocities?
- StephenDoty
- · Replies 3 ·
What would car racing physics entail?
- greeenie
- · Replies 2 ·
Solving the Gaussian Cube Question: Understanding E = 7.35i - 5.63(y2 + 9.74)j
- Zythyr
- · Replies 1 ·
Displacement of Underdamped Oscillation: Maximum and Minimum Occurrence?
- end3r7
- · Replies 2 ·
Finding the direction on a second displacement
- Imperator
- · Replies 10 ·
1989 Physics B Electro - Question #2.
- GP_Skier
- · Replies 1 ·
Calculating Water Volume in a Cumulus Cloud
- jav6454
- · Replies 1 ·
Electric Field Produced by a Ring
- smithnh
- · Replies 2 ·
Angle between vectors (2,1,-4) and (-3,0,1)
- Yahaira.Reyes
- · Replies 7 ·
Football related Projectile problem
- Go Angels
- · Replies 8 ·
Solving Sound Waves Problem: Distance of Explosion from Ground Vibration
- moronto
- · Replies 2 ·
Why is 2.01 the accepted value for a pendulum?
- LadiesMan
- · Replies 2 ·
Potential difference in an electron
- mathcrzy
- · Replies 3 ·
Velocity of Proton with 23.0 keV Kinetic Energy
- mathcrzy
- · Replies 3 ·
Electric Field of a single charge vs 2 charges
- Poop-Loops
- · Replies 3 ·
Calculating the electric field, multiple point charges
- aliaze1
- · Replies 10 ·
How Do You Calculate the Electric Field in a Finite Charged Plate?
- Rib5
- · Replies 4 ·
Kinetic, potential and mechanical energy question.
- solarwind
- · Replies 4 ·
How Do You Calculate the Acceleration Due to Gravity on an Unknown Planet?
- Melchior25
- · Replies 1 ·
Solving Cylinder Problem: Calculate Work Done in KJ
- defineNormal
- · Replies 4 ·
Electric field due to two point charge
- Alexis565
- · Replies 8 ·
Why doesn't the water levels equal each other in a U-shaped tube?
- adam878787878
- · Replies 6 ·
Discus thrower angular and linear kinematics
- someboy
- · Replies 10 ·
How Long Will It Take the Aimless Wanderer to Orbit Planet Mongo?
- anthonym44
- · Replies 1 ·
What Is the Unit Vector in the Block's Momentum After a Kick?
- rcm431
- · Replies 1 ·
How much work does an electric field do in moving a proton
- mathcrzy
- · Replies 2 ·
Pressure wave amplitude from sound wave rarefaction
- Brandi10
- · Replies 1 ·
How Do You Calculate Position, Velocity, and Speed from a Vector Function?
- Go Angels
- · Replies 6 ·
How do I check if a force field is potential?
- danilo_rj
- · Replies 3 ·
Gravitational Force (Earth and Sun)
- jgens
- · Replies 1 ·
How do you study effectively for English class?
- Larrytsai
- · Replies 6 ·
Solving Projectile Motion and Vectors Problems
- Gebs-
- · Replies 6 ·
PV graph question (trying to determine the work)
- adam878787878
- · Replies 1 ·
Sound Wave quesions (Grade 11 Physics)
- pkevin91
- · Replies 1 ·
Solve Pulley Related Rotational Mechanics Problems: Concept Guidance
- physixguru
- · Replies 4 ·
Verifying that y(x,t) = Ae^(i(kx-wt)) solves the wave equation
- dnoi
- · Replies 2 ·
Calculating Weight of a Brick Using Laws of Motion: 42N, 52N, and Acceleration
- jen333
- · Replies 5 ·
Electrostatic Force of Water on a Chlorine Ion
- moonlight13
- · Replies 4 ·
Solved: Acceleration Problem for Truck and Car
- am08
- · Replies 4 ·
Calculating the Y-Component of an Electron's Velocity in a High Voltage Field
- pcandrepair
- · Replies 7 ·
Toothpick bridge design for 100g load over 500mm span
- MoreZitiPlease
- · Replies 23 ·
How Do You Calculate Electric Fields in Physics Problems?
- Physics_God
- · Replies 1 ·
How do I calculate acceleration from displacement and velocity?
- ocigano
- · Replies 3 ·
How Fast Can an Elevator Lift a 1000 kg Load with 2000 W of Power?
- desichick07
- · Replies 5 ·
How Does Touching a Violin String Affect Its Frequency?
- clipperdude21
- · Replies 2 ·
Electron accelerated by 300 N/C electric field
- ghettobob
- · Replies 2 ·
What is the position when V = (2PT)/M and the only variable is T?
- kappcity06
- · Replies 1 ·