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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Ball being shot out of a spring gun - Velocity
- mybrohshi5
- · Replies 3 ·
Voltage in a 2 battery series circuit
- Dart82
- · Replies 8 ·
Simple Harmonic Motion on an air track
- CloCon
- · Replies 2 ·
How much work was done to overcome friction?
- Lil_Aziz1
- · Replies 6 ·
Calculating EMF Around a Square in a Magnetic Field
- gadje
- · Replies 4 ·
Evaluating double integral - jacobian help
- bon
- · Replies 7 ·
Solving Vectors Question: Wind Direction & Velocity
- AquaAqua
- · Replies 5 ·
Kinetic energy of alpha particle during decay
- senan
- · Replies 1 ·
What is the average density and free-fall acceleration of a white dwarf?
- roam
- · Replies 1 ·
Vector Velocity and Coulomb's Law
- sami23
- · Replies 2 ·
Solve First Law of Thermo Homework: (DT/DV)s = -(DP/DS)v
- bon
- · Replies 1 ·
What is the correct approach for solving thermodynamics questions?
- Paymemoney
- · Replies 6 ·
Understanding Discrete Quantities in Electrical Charge
- fallen186
- · Replies 2 ·
Solve Silent Ringing Bell Homework Statement
- anubis01
- · Replies 7 ·
What is the force of friction on a 50 gram coin on a turntable?
- mybrohshi5
- · Replies 2 ·
Chain with 2 links lifted vertically - Force
- mybrohshi5
- · Replies 7 ·
Current using kirchhoff's loop rule
- 8614smith
- · Replies 1 ·
Magnetic Field Problem: Magnitude & Dir of Electric Field
- qwerty11
- · Replies 1 ·
Throwing a dart from a roof - Velocity
- mybrohshi5
- · Replies 4 ·
Object in free fall - Velocity
- mybrohshi5
- · Replies 3 ·
What is the current through resistor 2 in a series circuit?
- alan1592
- · Replies 3 ·
Calculating Induced EMF: 50 cm^2 to .005 M^2
- Gemy4
- · Replies 4 ·
Simple Problem. Finding Forces using free body diagrams.
- Ebola_V1rus
- · Replies 2 ·
How to Calculate M in a Simple Math Equation
- qwerty11
- · Replies 1 ·
Simple math im not understanding
- qwerty11
- · Replies 5 ·
Magnetic Field Calculation for Point P in a Current-Carrying Wire Configuration
- scoldham
- · Replies 12 ·
How Do You Calculate Degrees of Freedom in Diatomic Gases Like Oxygen?
- vorcil
- · Replies 4 ·
Electric potential inside non-conducting sphere
- irnubcake
- · Replies 4 ·
How Does Constant Power Affect Object Motion Compared to Constant Force?
- gaobo9109
- · Replies 3 ·
Planar Kinematics of a Rigid Body
- Gnat85
- · Replies 1 ·
Understanding the Quality Factor in RCL Parallel Circuits
- sanazy24
- · Replies 1 ·
Anyone know some cool physics demonstrations?
- spiderdan
- · Replies 3 ·
Calculating Min. Stopping Dist. of Lorry Carrying Crate w/ Coef. of 0.3
- johnny_702
- · Replies 12 ·
Calculating Amplitude in Simple Harmonic Motion
- affirmative
- · Replies 4 ·
Calculating the Maximum Energy Stored in a Compressed Spring
- Stroodle
- · Replies 1 ·
Finding the Spring Constant for Bungee Jumping
- wangking
- · Replies 1 ·
How Do You Calculate the Width of a Slit Using Single-Slit Diffraction Data?
- Yaaaldi
- · Replies 1 ·
Comparing Aluminum & Copper Deflection Angles
- Loligo
- · Replies 3 ·
What Compression Level Gives Maximum Velocity to a Sliding Box on a Spring Ramp?
- xstetsonx
- · Replies 18 ·
Simple Spectrometer and Spectroscopy Question
- SaintsTheMeta
- · Replies 2 ·
Unit conversion litres to gallons or vice versa
- 1irishman
- · Replies 2 ·
Doppler effect and Resonance-relationship?
- smhni
- · Replies 2 ·
Force & Moment Homework: Find Moment of Force P About O
- drkidd22
- · Replies 3 ·
How Do You Derive the Normal and Static Frictional Forces on an Inclined Plane?
- acspin
- · Replies 3 ·
Volume of Balloon at 23K and 299K
- jagged06
- · Replies 3 ·
How Long Does It Take to Charge a 195 µF Capacitor to 125 Volts?
- boneill3
- · Replies 2 ·
And what would the webpage title be?Pressure on a Button on a Table
- alsemmelink
- · Replies 1 ·
Two masses attached to spring w/ pulley
- peachfuzz
- · Replies 1 ·
Calculating Momentum of a Thrown Object at Maximum and Halfway Heights
- zafer
- · Replies 5 ·
Basic Refraction question. Kindly help
- helpphysics
- · Replies 3 ·
Electric Potential-Work Problem
- scoldham
- · Replies 3 ·
Calculating Force on an Aluminum Beam with Temp Change
- theskyisgreen
- · Replies 4 ·
Finding the Value of b in Gauss's Law Charge Problem
- scoldham
- · Replies 18 ·
What Angle Should Bead 2 Be Positioned for Desired Electric Field?
- scoldham
- · Replies 8 ·
Enthelpy change and Entropy change; given the equation for the substance
- sac.lalit
- · Replies 1 ·
Equilibrium of weight on pulley
- drkidd22
- · Replies 3 ·
Explaining the relationship between launch angle and displacement
- josh1234
- · Replies 6 ·
Solve Elastic Collision: Find Velocity & Direction
- thereddevils
- · Replies 1 ·
Spring and maximum compression time
- smhippe
- · Replies 9 ·
Car braking and ratio of force of friction
- smhippe
- · Replies 3 ·
Work Done by Air pressure difference
- just.karl
- · Replies 3 ·
Energy efficiency of torsion Catapult
- lovemake1
- · Replies 1 ·
Molecular movement, potential energy and angular frequency
- smhippe
- · Replies 2 ·
Help w/Current Through Batteries
- STEF2098
- · Replies 7 ·
Calculating Electric Potential Energy of a Charge Configuration
- squintyeyes
- · Replies 1 ·
Location of maximum desctructive intereference
- Gravitino22
- · Replies 2 ·
Bernoulli's Equation - Efflux question
- sb_4000
- · Replies 4 ·
Why Does Kinematics Fail in Calculating Fmax in This Physics Problem?
- xstetsonx
- · Replies 2 ·
How Far Did They Fall in Meters?
- 1irishman
- · Replies 3 ·
Solving Pressure: P = 7.35N / (.24m x .2m)
- jefgreen
- · Replies 5 ·
What Is the Angular Velocity of a Complex Rigid Body Assembly?
- spdowind
- · Replies 2 ·
Does This Material Follow Ohm's Law?
- physicsphobic
- · Replies 6 ·
Ideal Gas Law Problem - Environmental Physics
- lachy
- · Replies 13 ·
Angle of a trajectory required to make it go a specified distance?
- dimmermanj
- · Replies 1 ·
Lenses- magnification adn focal length
- PhysicsChick8
- · Replies 8 ·
Harmonic traveling wave physics
- bon
- · Replies 2 ·
Integrating Shell Collapse Velocity Equation for Free-Fall Time Calculation
- TheTourist
- · Replies 1 ·
Solving Number of Molecules for Entropy of 1.181x10^-12 J/K
- samueltak
- · Replies 1 ·
Forces and Tensions: Two Masses Suspended from Cable System
- drkidd22
- · Replies 1 ·
Electrical Circuit/Electrical Power Problem
- lucas101
- · Replies 2 ·
Calculating Speed of Object in Rotational System with Frictionless Bearings
- phychal
- · Replies 1 ·
Thinking about electronic collisions with hydrogen.
- IHateMayonnaise
- · Replies 1 ·
Calculating Volume of Helium Balloon at Different Temperatures
- jagged06
- · Replies 1 ·
Relative Velocity: Car A, B & C on Two Lane Road
- arakram94
- · Replies 1 ·
What Attracts a Solenoid's Northern End: A Bar Magnet's Polarities?
- Eleventh_Hour
- · Replies 1 ·
Simple Photoelectric Effect Conceptual Question
- fallen186
- · Replies 1 ·
Can UV and Sound Waves Be Polarized?
- m.medhat
- · Replies 2 ·
Volume of 1 g Mole Gas at 356.2K & 1 atm: 2.92x10-2 L
- hackett5
- · Replies 1 ·
Inclined plane translational velocity
- davidelete
- · Replies 5 ·
Calculating Spring Compression and Muzzle Velocity in Projectile Motion
- bacon
- · Replies 2 ·
Quantum aspect of light waves with connection with Youngs Double Slit Experiment
- dc5itr888
- · Replies 4 ·
Verify Moment Calculation: Attached PDF Answer
- drkidd22
- · Replies 10 ·
Fmax=36.4NWhat is the maximum force exerted on a bullet by a wooden block?
- xstetsonx
- · Replies 5 ·
Static friction and car and unbanked curve
- xstetsonx
- · Replies 12 ·
Coservation of energy and impulse
- gongshow29
- · Replies 12 ·
Solving a Complex Equation with cos(wt).exp(jθ)
- boz27
- · Replies 9 ·
How Much Energy Is Needed to Separate Nucleons in a Gold-197 Nucleus?
- matt72lsu
- · Replies 2 ·
Electric Potential of a Proton Question
- blablasometin
- · Replies 2 ·
Efficiency of an inclined plane
- pfk123
- · Replies 1 ·
Relativistic acceleration with integration problem
- Gravitino22
- · Replies 7 ·