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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Finding g from simple pendulum using quadratic regression in Excel
- kmr159
- · Replies 1 ·
Torque and Equilibrium of a Rod
- sketchedwords
- · Replies 1 ·
Pressure difference when height changes
- FollowTheFez
- · Replies 1 ·
Solving Resistors in Series: 1.50 V Battery
- franky1994
- · Replies 2 ·
Pressure Question using 'mm-Hg'
- FollowTheFez
- · Replies 1 ·
Can work transform potential energy to kinetic energy without changing total energy?
- mcnealymt
- · Replies 10 ·
Electric Field of Finite, Diagonal Line-Charge
- AmagicalFishy
- · Replies 6 ·
Draw a free body diagram of each object in centripetal acceleration
- nc9261
- · Replies 2 ·
How to find final velocity with given slope and mass?
- Sneakatone
- · Replies 14 ·
Distributing 3 identical eggs into 5 boxes
- GoGoGadget
- · Replies 3 ·
Find the equivalent capacitance
- mathnoobie
- · Replies 13 ·
Why does magnetic force equal to weight guarantee vertical lift?
- Bashyboy
- · Replies 2 ·
Energy - Cannon Ball and Conservation of Energy
- mcnealymt
- · Replies 6 ·
Where to place equivalent resistors when redrawing circuits
- mathnoobie
- · Replies 2 ·
Rocket ejecting mass at 15,000 kg
- Litcyb
- · Replies 17 ·
Does a ball bearing oscillating on a curved track have a constant time
- mrcotton
- · Replies 5 ·
Struggeling with quantum mechanics
- Plecto
- · Replies 17 ·
What is the Work Done by Friction in a Box Being Pushed by an External Force?
- Legerity
- · Replies 11 ·
Force between +5μC and -6μC charges 0.02m apart
- Captain cook
- · Replies 3 ·
Entropy change when converting water to steam
- doombanana
- · Replies 1 ·
Finding the coefficient of lift of a propeller blade?
- theBEAST
- · Replies 6 ·
What Is the Diameter of the Wire in the Interference Experiment?
- pious&peevish
- · Replies 10 ·
Spherical ball rolling on a concave surface
- Tanya Sharma
- · Replies 17 ·
How Do You Calculate Tension in a Hanging Mirror?
- Arabell
- · Replies 3 ·
What Is the Linear Speed of a Disk on an Inclined Plane?
- Jbreezy
- · Replies 5 ·
Parallel Plate Conductor Question
- Benny851
- · Replies 8 ·
Calculating Mirror Mass Using Laser Force
- Newbie12
- · Replies 6 ·
Calculating the distance the spring was compressed
- Line6spider
- · Replies 8 ·
Calculate Torque of Eddy Current Brake for Rotating Disk with Magnetic Field
- AJKing
- · Replies 1 ·
Isothermal compression of water in a piston-cylinder device
- mdawg467
- · Replies 13 ·
Conversion units mystery. Am I wrong?
- giraffeinaboat
- · Replies 2 ·
Two skaters rotating with a pole: why angular speed changes when radius decreases
- rockchalk1312
- · Replies 2 ·
EMF in a loop; non-constant magnetic field
- AJKing
- · Replies 3 ·
Finding Angles of Interacting Forces
- gajohnson
- · Replies 1 ·
How to determine harmonic number
- Nickod777
- · Replies 4 ·
Graphical analysis work problem
- freshcoast
- · Replies 11 ·
How Hot Must the Air in a Balloon Be to Lift a Given Mass?
- erok81
- · Replies 7 ·
What is the Magnetic Field Near a Straight Current-Carrying Conductor?
- VortexisVoid
- · Replies 1 ·
Diffraction Grating - Resolving Power
- Darth Frodo
- · Replies 4 ·
Why use rotational kinetic energy to find angular velocity
- Litcyb
- · Replies 1 ·
2 dimensional collision with momentum
- Painguy
- · Replies 1 ·
Elastic collision between masses on incline and flat plane
- Jbreezy
- · Replies 2 ·
How to calculate average power in this case?
- NafeesAhmed
- · Replies 3 ·
Solving the Equation for a Simple LC Circuit
- serverxeon
- · Replies 7 ·
Electric field lines for two point charges
- physicsqanda
- · Replies 3 ·
Double cheking momentum problem
- Jbreezy
- · Replies 2 ·
Ray diagrams for pencil at various positions on converging and diverging lenses
- physicsqanda
- · Replies 3 ·
Entropy change in isochoric process
- wowowo2006
- · Replies 1 ·
Velocity as a function of position problem (simple i think)
- member 428835
- · Replies 6 ·
Efficiency and Power Calculation for a Moving Car
- mouthwash
- · Replies 5 ·
Egg drop experiment with a twist
- trgoostrey
- · Replies 4 ·
How can the collision of connected particles be analyzed in mechanics?
- Taylor_1989
- · Replies 7 ·
Expected value for momentum and x, intro to quantum mechanics.
- scottyavh
- · Replies 1 ·
I calculating gravitational acceleration.
- GabbyOcean
- · Replies 4 ·
Vector Potential of Spinning Sphere
- Shinobii
- · Replies 3 ·
Which equation is correct about the forces
- captinkareem1
- · Replies 2 ·
How Fast is the Ball After a Perfectly Elastic Collision?
- Bostonpancake0
- · Replies 1 ·
Why does a periscope reflect an inverted image?
- heatherro92
- · Replies 7 ·
How Do Electrons Focus When Emitted from a Cylinder?
- Saitama
- · Replies 27 ·
Probability of a particle in a box in the first excited state.
- kickingpaper
- · Replies 3 ·
RMS displacement of a diatomic atom
- Erubus
- · Replies 2 ·
Calculating stress given torque
- InterestedGuy
- · Replies 3 ·
Inner product space - minimization.
- binbagsss
- · Replies 1 ·
Applying force to an object of equal mass, finding required force?
- gerard.caleb
- · Replies 1 ·
Electrostatics-determining velocities
- plutolover
- · Replies 6 ·
Magnetic Deflection of an Electron on Earth's Equator at 1000m Altitude
- TitaniumX
- · Replies 1 ·
Train Velocity Model for Distance of 5280 ft
- member 428835
- · Replies 1 ·
Can Vectors in a Box be Solved Without Given Coordinates?
- EternityMech
- · Replies 9 ·
Find time taken by a pendulum to swing by 90degrees
- vikvaryas
- · Replies 4 ·
Deriving Error Equations for Half-Life Calculations
- dab353
- · Replies 2 ·
Relative Velocities: Engineering Mechanics Dynamics - Hibbeler
- serverxeon
- · Replies 1 ·
HAT - Displacement of joint of the rods
- exuberant.me
- · Replies 18 ·
Calculating Fluid Pressure in an L-Shaped Tank
- wcase
- · Replies 8 ·
Is there a relationship between \( k_b \) and \( C_v \)?
- oxman
- · Replies 2 ·
Force on a point from electric charges
- rocapp
- · Replies 12 ·
Position, Velocity, Acceleration, and Distance?
- Stanc
- · Replies 3 ·
How do I find energy lost? Something very simple is confusing me
- x86
- · Replies 4 ·
Simple Harmonic motion and Doppler effect question
- Xelb
- · Replies 9 ·
What Is the Average Force on a Parachutist's Feet When Landing Stiff-Legged?
- Killic
- · Replies 2 ·
Electric field along the y-axis of a charged semicircle
- dumbperson
- · Replies 3 ·
Find final velocities in the reference frame to the ground.
- Sneakatone
- · Replies 30 ·
How Do You Calculate Electric Potential for Spherical Shells?
- nchin
- · Replies 27 ·
How much energy per unit mass is needed
- helpmymaths
- · Replies 11 ·
Solving 2D Collisions: Find the Velocity of Eight Ball After Impact
- x86
- · Replies 2 ·
Find the vector and find the magnitude of the vector
- Voltrical
- · Replies 5 ·
SHM question with pulley and springs
- Sunil Simha
- · Replies 19 ·
What Is the Speed of the Clown and Performer When They Reach the Launch Height?
- Sneakatone
- · Replies 42 ·
How Do You Solve a Basic KVL Circuit Problem?
- nchin
- · Replies 3 ·
Thermodynamics Problem involving an ideal gas Helium?
- hbk69
- · Replies 23 ·
How Do You Calculate Electron Tunneling Probability Through a Barrier?
- dinospamoni
- · Replies 1 ·
Why is the derivative of a constant capacitor energy zero?
- nchin
- · Replies 3 ·
Find the dielectric constant of the medium?
- pwn2d2
- · Replies 1 ·
Pulley System Problem with String Impulse (Atwood's Machine)
- jmlibunao
- · Replies 6 ·
Is this half-life answer kosher?
- henpen
- · Replies 5 ·
Approximating a Simple Harmonic motion
- hms.tech
- · Replies 5 ·
Direction of friction in the circular motion of a car
- sbhit2001
- · Replies 6 ·
Diffraction grating of laser light
- Johnahh
- · Replies 4 ·
Quick Static Equilibrium Questions
- pietastesgood
- · Replies 7 ·
Finding the Net Electric Field of Two Point Charges
- Pruddy
- · Replies 27 ·