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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Interference- am I reasoning correctly?
- bcjochim07
- · Replies 5 ·
How Does Sand Affect the Dynamics of a Conveyor Belt System?
- dkgojackets
- · Replies 8 ·
Why is it safe to be insulated from ground while working with electric currents?
- zauguri
- · Replies 1 ·
How Do You Determine if Resistors Are in Parallel or Series?
- devcat
- · Replies 9 ·
How to Solve Second Order Differential Equations Involving Sines and Cosines?
- tuananh3ap
- · Replies 3 ·
Penetrating power of a beta particle
- eftalia
- · Replies 1 ·
Finding Charge on a Cube Corner
- Cefari
- · Replies 1 ·
Two slit experiment with glass plate over one slit
- bcjochim07
- · Replies 6 ·
Uniformly charged rod in an arc
- StephenDoty
- · Replies 3 ·
What force is needed to accelerate a car
- smarties
- · Replies 1 ·
Finding minimum cable length with tension constraint
- X8V
- · Replies 2 ·
Minimum initial speed for salmon to jump over 0.55 m waterfall
- th7172
- · Replies 1 ·
Constant Acceleration/Velocity HW question
- jessedevin
- · Replies 20 ·
Rotational Kinematics-YoYo Dropping from Ceiling
- Darkalyan
- · Replies 6 ·
Why Can't You Always Add Numbers with the Same Dimensions?
- oreocookie
- · Replies 1 ·
Will a body remain at rest if the net force on it is zero?
- proyasha
- · Replies 14 ·
How Does a Rubber Ball Bounce?
- Phoenixtears
- · Replies 1 ·
How Does Signal Delay Affect Interference Between Two Loudspeakers?
- bcjochim07
- · Replies 4 ·
Projectile Motion (No initial velocity)
- th7172
- · Replies 1 ·
Calculate Height of Freely Falling Object - 30m in 1.5s
- kash25
- · Replies 3 ·
A somewhat tricky projectile problem
- musicfairy
- · Replies 1 ·
Is momentum of the atom conserved when it bounces off a piston?
- qazxsw11111
- · Replies 1 ·
How do I Find Phase Shifts for two Waves?
- He man
- · Replies 9 ·
Squeezing a piston and its effect on temperature
- qazxsw11111
- · Replies 1 ·
Electris Field Quest confuzzled
- 9giddjl
- · Replies 1 ·
Calculating Tension in a Massless Cable for a Moon Orbit
- Lanc1988
- · Replies 6 ·
Kinematics particle velocity problem
- musicfairy
- · Replies 3 ·
How to Calculate Time and Distance in Basic Physics Problems?
- jbrockoli92
- · Replies 1 ·
Crossing Point Distance Calculation
- zn23
- · Replies 2 ·
Ball thrown upward: acceleration at different points
- aleferesco
- · Replies 4 ·
Finding coordinates of a point on an out of phase wave
- tron_2.0
- · Replies 5 ·
Projectile Jumper Problem: Finding Takeoff Speed
- tuber313
- · Replies 4 ·
Solve Kinematics: Find Vi of Flea Jumping 0.390m
- jnimagine
- · Replies 1 ·
How Do You Find g Using Atwood's Machine?
- blindsided
- · Replies 2 ·
When Do Two Toy Cars on Parallel Tracks Match Speeds and Positions?
- BeckyStar678
- · Replies 1 ·
Deriving the trajectory angle derivative equation
- psychfan29
- · Replies 1 ·
Three strings in equilibrium with tensions and angles
- CaptainSFS
- · Replies 2 ·
Minimum Velocity only given distance
- tripletrouble
- · Replies 5 ·
Solving Flux of Electric Field through a Cube of Side L = 2m
- ibaraku
- · Replies 5 ·
Electrical Force At Equilibrium
- zakaqel
- · Replies 2 ·
Heat and change of phase problem
- Sheneron
- · Replies 8 ·
Vector addition problem - component method
- Larrytsai
- · Replies 15 ·
Vector Addition and Components
- zn23
- · Replies 19 ·
What Is the Tension in a Cable at an Angle?
- da5id2
- · Replies 1 ·
How far can a 100 W light source be detected by the eye?
- jesuslovesu
- · Replies 1 ·
Thermodynamics - engine efficiency
- portofino
- · Replies 8 ·
Finding X and Y components of forces
- azn4lyf89
- · Replies 1 ·
Tension of a Rope Connected to Two Identical Blocks on a Rough Table
- Benzoate
- · Replies 19 ·
Acceleration in terms of velocity and radius?
- winbacker
- · Replies 1 ·
Max height-2 balls-1 straight up-the other horizontal at an angle? yikes
- sddatt
- · Replies 1 ·
How Should Uncertainties and Significant Figures Be Reported in Measurements?
- fishingspree2
- · Replies 6 ·
Finding tension in three ropes supporting a 200 N box
- CLeSure
- · Replies 5 ·
Friction problem again Okay today is not my day
- vysis
- · Replies 2 ·
Why V = IR Can't Be Used to Define p.d.
- Kushal
- · Replies 5 ·
Solve Kinematics Problem: Find x(t) for Chain on Frictionless Table
- naggy
- · Replies 12 ·
Finding Thevenin Equivalent at Terminals a-b
- VinnyCee
- · Replies 2 ·
Free fall of a stone off a cliff
- brendj3
- · Replies 4 ·
Kinematics Problem: How Far Will a Pitch Fall Vertically at 61.2 ft?
- Xaran
- · Replies 2 ·
Electric Charge on spheres suspended from an angle
- Kathi201
- · Replies 2 ·
Calculating Displacement of a Grizzly Bear: Homework Solution
- deaky220
- · Replies 2 ·
Speical relativity problem: How Tall Really Is Your Favorite Superhero?
- jlk
- · Replies 2 ·
Does Buoyant Force Vary with Material Density in a Composite Object?
- Sheneron
- · Replies 8 ·
Tension in a uniform rope supporting a hanging block
- bmarvs04
- · Replies 7 ·
How Much Force Must a Professor Exert to Control Cart Speed on a Ramp?
- FuzzyDunlop
- · Replies 1 ·
Calculating Internal Resistance in a Series Circuit
- bengaltiger14
- · Replies 6 ·
Net electric flux through torus
- dtesselstrom
- · Replies 2 ·
What is the minimum acceleration of the elevator when the cord breaks?
- confusedguy87
- · Replies 10 ·
How Does Changing Distance Affect Repulsive Force Between Charged Particles?
- Kathi201
- · Replies 7 ·
How Far Did Big Bertha's Shell Travel?
- steelblondie5
- · Replies 1 ·
Finding possible magnitudes when adding velocity vectors
- hayzman5
- · Replies 1 ·
Vector Displacement Components for Minute Hand from 8:00am to 8:20am
- Lamnia
- · Replies 2 ·
Is Energy Conserved in Pendulum Motion?
- maracxos
- · Replies 5 ·
Projectile: Given V0, h, show d=(v0/g)sqrt((v0)^2-4gh)
- qamptr
- · Replies 3 ·
Temperature difference across concrete wall from conduction rate
- jcamp11
- · Replies 2 ·
Motion Problem: Struggling with Angle w.r.t Wall
- Garen
- · Replies 5 ·
What Is the Height of the Building If a Ball Lands 35 Meters Away?
- wellojello
- · Replies 1 ·
Basic Kinematics: Solving for an Object's Motion with Constant Acceleration
- themilkman
- · Replies 1 ·
Problem geostationary satellite
- fluidistic
- · Replies 5 ·
Electric Field at Point P in an Equilateral Triangle
- Kathi201
- · Replies 2 ·
Vectors and Motion: Calculating Average Velocity and Speed
- Husker70
- · Replies 3 ·
Ideal Gas Law: Encyclopaedic Experimental Data
- Prokop
- · Replies 1 ·
Solving Incline Motion & Net Acceleration of a Combined System
- ritwik06
- · Replies 11 ·
How Does Friction Affect Cylinder Movement on Slopes and Planes?
- Hippoman
- · Replies 4 ·
Projectile Motion Question (physics 101)
- cheese89
- · Replies 7 ·
Electric Field/Potential Of A Sphere
- Trenthan
- · Replies 2 ·
How Do Lorentz Transformations Apply to Aircraft Communication Delays?
- Quelsita
- · Replies 1 ·
Conservation of Momentum Experiment
- temaire
- · Replies 2 ·
Finding magnitude of surface charge density.
- nslinker
- · Replies 1 ·
How Do You Calculate Time and Velocity of a Rocket-Powered Ice Sled?
- avabby
- · Replies 1 ·
Third force balancing two forces and finding vector sum components
- oreocookie
- · Replies 1 ·
Latent Heat Problem/ Phase Change .
- jdhutto
- · Replies 1 ·
Free body diagram of hanging pot
- dimpledur
- · Replies 1 ·
Projectile motion astronaut problem
- Morhas
- · Replies 1 ·
What Is the Contact Force Between Two Boxes with Different Frictions?
- fahlim003
- · Replies 1 ·
How Does Flipping a Coil Affect Capacitor Voltage?
- fredrick08
- · Replies 3 ·
Tension in string between two blocks with applied forces
- cgarr017
- · Replies 2 ·
Light-rail train acceleration and distance between stations
- john16O
- · Replies 1 ·
Conservation of Energy- Circular Motion Problem
- thaixicedxtea
- · Replies 3 ·
Pythagorean Theorem to find the resultant
- missie
- · Replies 1 ·
Sun yacht spacecraft: mass 1100 kg, 17 N push, finding acceleration and distance
- cgarr017
- · Replies 4 ·