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 Initial Velocity Components of a Projectile Using Kinematic Equations
- Bashyboy
- · Replies 5 ·
Show mechanical energy is not conserved in an inelastic collision.
- brikayyy
- · Replies 7 ·
Finding Absolute Uncertainty Using Formulas
- Coop
- · Replies 1 ·
Why do electrons flow in that direction around the circuit?
- Miike012
- · Replies 2 ·
"Solving Rope Through a Hole Physics Problem
- Saitama
- · Replies 5 ·
How Much Air Is Needed to Lower Mercury in a Barometer from 75cm to 59cm?
- Betadine
- · Replies 3 ·
Calculate Tension of Rope for 0.5kg Mass Dropped 0.5m in 1.5s
- brenfox
- · Replies 4 ·
System of two inclines planes and pulleys
- deea11235
- · Replies 4 ·
Linear and angular acceleration problems.
- brenfox
- · Replies 8 ·
Variable mass system - sand falling on flatcar
- Saitama
- · Replies 13 ·
How to find the maximal mechanical power output of a stearin engine?
- ArenasField
- · Replies 1 ·
Determining power supplied by battery
- Miike012
- · Replies 1 ·
Projectile motion car tires question
- samman010
- · Replies 13 ·
Magnitude and Direction of Electric Point Charges
- StudentA1
- · Replies 1 ·
Ball thrown vertically caught after 3.6 seconds
- failedphysics
- · Replies 4 ·
Simple pendulum- ang v at time from mass, length, and ang v at 0 rad
- natasha13100
- · Replies 1 ·
Finding the Orbit of a Particle with Varying Position Vector
- d2x
- · Replies 1 ·
Motion in one dimension- total trip time
- QuantumCurt
- · Replies 8 ·
Determine the components of P in the i, j, and k directions.
- anonymous812
- · Replies 3 ·
Is Surface Tension Directed Along or Perpendicular to the Liquid Surface?
- andyrk
- · Replies 1 ·
Affect of Friction on Acceleration and Deceleration
- Molly1235
- · Replies 5 ·
Minimum deceleration for a car to avoid hitting a truck ahead
- TeeNaa
- · Replies 5 ·
Charged Spherical Shell and Solid Sphere
- andyrk
- · Replies 16 ·
Maximum Length for Coaxial Cable in a 100 ns Noise Transfer Scenario
- usn7564
- · Replies 7 ·
Find Zero Field Location of Two Charges of q1=4μC and q2=-1μC
- hacker804
- · Replies 4 ·
Why does a soap film form inside a wire ring?
- andyrk
- · Replies 4 ·
Magnetic Field (Hollow Copper Pipe)
- roam
- · Replies 2 ·
How Do Galilean Transformations Affect Measurements in Different Frames?
- austim14
- · Replies 3 ·
Point charges in electric field
- tuggler
- · Replies 10 ·
What does the second torque question about the wrench mean?
- silenzer
- · Replies 1 ·
What does the S/m stand for?
- KatrinMD
- · Replies 2 ·
Electric potential of water droplets
- tsgkl
- · Replies 6 ·
How to combine percentages (Solely Simple Math Problem)
- Fisher92
- · Replies 2 ·
Connecting Charged spheres by a conducting wire
- andyrk
- · Replies 7 ·
Why Does Earthing a Charged Sphere Neutralize Its Charge?
- andyrk
- · Replies 1 ·
Electric field for point charge
- tuggler
- · Replies 4 ·
What is the Fraction of Electrons Removed from a Charged Ball of Copper?
- tuggler
- · Replies 2 ·
Ball colliding with spring-block system: elastic collision and oscillation
- jones123
- · Replies 2 ·
Calculate Tension in String of Conical Pendulum
- sliinky
- · Replies 7 ·
How Far Does m1 Travel Before Colliding with m2?
- postfan
- · Replies 4 ·
What is the net force on the third spider (S3)?
- tuggler
- · Replies 1 ·
Find the point b/w two charges where the electric field is zero?
- kashan123999
- · Replies 14 ·
What is the Angular Momentum of a System with Pulleys and Blocks?
- postfan
- · Replies 20 ·
Trouble with Dimensional Analysis
- mileena
- · Replies 9 ·
Position of elevator given velocity vs time
- drjohn15
- · Replies 9 ·
Finding member forces in a three-bar structure with angle θ
- smutangama
- · Replies 9 ·
Where should a second hole be placed in order for the light [ ]?
- s3a
- · Replies 2 ·
Projectile Motion w/o Horizontal Givens
- Penguin'15
- · Replies 5 ·
Angular momentum and acceleration in a pulley system with two blocks
- mshmsh_2100
- · Replies 6 ·
Finding the magnitude/direction of a resultant vector?
- anonymous812
- · Replies 4 ·
Electric field strength and electrostatic potential
- UnD3R0aTh
- · Replies 21 ·
How Is Engine Efficiency Calculated Using V1/V2 in Thermodynamic Cycles?
- davidchen9568
- · Replies 2 ·
Can You Calculate How Long it Takes to Drain a Car Battery with Headlights On?
- FredericChopin
- · Replies 3 ·
Electrical forces between two beads in a hemisphere
- Nick O
- · Replies 7 ·
Moles of gas remaining in lungs during submarine ascent
- Nigzzzz
- · Replies 13 ·
Deriving of the constants in Fourier Analysis
- PsychonautQQ
- · Replies 4 ·
Dimensional anaylsis problem involving trigonometry
- mileena
- · Replies 3 ·
Calculating amount of raindrops
- anthonyslvtr
- · Replies 1 ·
Calculating the speed of a β-particle?
- Mikry
- · Replies 6 ·
How to find water vapor volume at different pressures than atm?
- rhinohugger
- · Replies 3 ·
Why Do Inverse Lorentz Transformations Seem Inconsistent in Special Relativity?
- PsychonautQQ
- · Replies 5 ·
Real fundemental physics problemsDon't laugh
- Fishingaxe
- · Replies 12 ·
Finding circuit current using Thevenin's theorem with polar and rectangular coordinates
- Razor3210
- · Replies 2 ·
What is the Instantaneous Velocity at t = 4.0s?
- Fishingaxe
- · Replies 16 ·
Locomotive throwing sand in a car
- Saitama
- · Replies 30 ·
QM - Transmission coefficient for square well
- DeltaFunction
- · Replies 3 ·
Finding velocity equation for object moving in 2 dimensions
- Wumbolog
- · Replies 6 ·
Understanding Vector Addition in Acceleration Problems
- PsychonautQQ
- · Replies 5 ·
Does Coulomb's Law Apply Equally to Unequal Charges?
- Yosty22
- · Replies 2 ·
What Is the Period of Oscillations in a U-Tube with Varying Radii?
- mbigras
- · Replies 12 ·
Two blocks and a spring system - Finding equation of motion
- Saitama
- · Replies 25 ·
Find angle, given the tension of the rope.
- brikayyy
- · Replies 2 ·
Expansion of gas through valve
- CAF123
- · Replies 11 ·
Can somebody walk me through this Special Relativity clock sync proble
- PsychonautQQ
- · Replies 13 ·
Optics - Find the location of object
- Saitama
- · Replies 4 ·
Why is the answer to this GRE physics problem choice A?
- PsychonautQQ
- · Replies 8 ·
Elementary lens system, microscope with negative ocular
- usn7564
- · Replies 5 ·
Parallel Plate Capacitor with Dialectric
- AdkinsJr
- · Replies 1 ·
Veritasium - Firing bullet in block - along center and away from cente
- cupid.callin
- · Replies 5 ·
GRE Conservation of Energy problem.
- PsychonautQQ
- · Replies 1 ·
Is Length Invariant Under Galilean Transformations?
- hatachiclaud
- · Replies 2 ·
How high up a frictionless hill will an object with velocity 3.7 m/s travel
- Fishingaxe
- · Replies 7 ·
Solving Umax with Pmax and Ohms
- Ren_Majer
- · Replies 3 ·
Modified Coulomb model for hydrogen, minimising error
- bobred
- · Replies 4 ·
Which Equation Should Be Used for Finding Maximum Constant Deceleration?
- sandman203
- · Replies 3 ·
RC DC Series and Parallel Circuit
- DeadFlower
- · Replies 5 ·
Find the velocity of a particle from the Lagrangian
- Lightf
- · Replies 5 ·
Two pendulums banging into each other problem.
- tjhero123
- · Replies 3 ·
Dynamics in Two Dimensions Question
- Enduro
- · Replies 3 ·
Finding maximum height and range with only angle and flight time
- PerryKid
- · Replies 4 ·
Friction On 2 Blocks + Angled Pull
- sandman203
- · Replies 47 ·
Impulse in an inelastic collision
- TurtleYack
- · Replies 1 ·
The balancing point between two point charges
- UnD3R0aTh
- · Replies 1 ·
Shape of mass vs acceleration graph?
- noahsdev
- · Replies 2 ·
Atmospheric Pressure and Mercury in a Test Tube
- yenhan10
- · Replies 5 ·
Can Object A Be Neutral Based on Charge Interactions?
- kickthatbike
- · Replies 3 ·
How Do You Find the Combined Elongation and Phase Shift of Superimposed Waves?
- Gauss M.D.
- · Replies 5 ·
Where did I go wrong in this special relativity problem?
- PsychonautQQ
- · Replies 1 ·
Special Relativity particle decay.
- PsychonautQQ
- · Replies 1 ·