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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Solving for Current in a Coil: A Troubleshooting Guide
- MeKnos
- · Replies 5 ·
Induced current in copper wire
- vigintitres
- · Replies 3 ·
What is the charge that can be stored on this capacitor
- ziplock2k
- · Replies 3 ·
I'm not sure what you're asking. Can you clarify?
- kdrobey
- · Replies 3 ·
Solving Planetary Motion: X & Y's Circular Orbits
- lempkema
- · Replies 3 ·
Pacemaker and Wire with Current
- myersb05
- · Replies 11 ·
What is the Tension in the Horizontal Cable Supporting a Crane?
- jrrodri7
- · Replies 1 ·
Network Capacitors: Calculate Equiv. Cap & Battery Charge
- purduegirl
- · Replies 22 ·
Calculate Density of Spherical Planet - 2.58hr Orbit
- lempkema
- · Replies 6 ·
Solving Gauss Law Problem 1: Electric Field of a Charged Copper Shell and Wire
- purduegirl
- · Replies 10 ·
Average emf in a 150-turn rectangular coil rotating in a magnetic field
- purduegirl
- · Replies 18 ·
Rotating meterstick problem w/ weights.
- jrrodri7
- · Replies 3 ·
Preparing for the Texas Science Teaching Exam: Essential Concepts and Resources
- brute25
- · Replies 3 ·
Friction problem from Halliday and Resnick
- Farnak
- · Replies 4 ·
What is the position of a particle at maximum speed?
- jrrodri7
- · Replies 7 ·
Thermal Expansion of a brass plug
- 0338jw
- · Replies 8 ·
What is the limit for the time of travel for a projectile with large damping?
- loonychune
- · Replies 4 ·
Calculating River Flow Rate from Boat Trip Data
- osker246
- · Replies 7 ·
Finding Speed of Satellite in Geosynchronous Orbit
- Lance WIlliam
- · Replies 3 ·
Radius of Planet with Double Gravity: Calculating with F=ma
- Lance WIlliam
- · Replies 12 ·
How Do You Calculate Net Torque with Different Forces and Angles?
- mmark
- · Replies 2 ·
Displacement: Vector or Scalar?
- mmark
- · Replies 1 ·
Solving Sailboat Problem: Magnitude and Direction of Wind Velocities
- ridlejs
- · Replies 1 ·
Calculating Current and Phase Angle in a Series RLC Circuit
- kdrobey
- · Replies 3 ·
Ball thrown from top of building
- jhoffma4
- · Replies 1 ·
How Can Mary Row Across a Flowing River?
- osker246
- · Replies 1 ·
Why Does the Force Calculation on Parallel Wires Yield Zero?
- myersb05
- · Replies 1 ·
Elastic Collision of 89.5kg & 25.5kg Skaters - Kevin & Brother
- spidey12
- · Replies 2 ·
Electric Circuit: i=i_{o}(1-e^{-t/\tau}) - Is (1) or (2) True?
- tuananh3ap
- · Replies 7 ·
Frequency where reactence is zero
- kdrobey
- · Replies 6 ·
Physics: Torque and static equilibrium
- Frantelle
- · Replies 1 ·
How Far Will the Ball Strike the Opposite Wall?
- roam
- · Replies 2 ·
Finding Absolute Permeability from Magnetization
- SuccessTheory
- · Replies 12 ·
What is the Power Factor of a Series RCL Circuit at 2520 Hz?
- kdrobey
- · Replies 3 ·
Finding A and B to Satisfy A X B = B
- student 1
- · Replies 4 ·
Angular Acceleration: Find Magnitude & Direction
- student 1
- · Replies 7 ·
What is the Critical Period for a Neutron Star and How is it Estimated?
- FNL
- · Replies 2 ·
Solve These Questions: Get Answers to Your Electrical Circuit Problems
- KUSHAGRA
- · Replies 6 ·
Find accel. of g on Saturns Moon.
- Lance WIlliam
- · Replies 7 ·
Calculating Mars's Orbital Period Using Kepler's Third Law
- Lance WIlliam
- · Replies 3 ·
Finding Weight on Inclined Plane
- tod88
- · Replies 3 ·
Simple Harmonic Oscillator Help
- noodle_snacks
- · Replies 2 ·
Relationship between velocity and stopping distance
- Twickel
- · Replies 1 ·
Energy, work, 2 masses on incline
- FurFur
- · Replies 37 ·
Resistor Combination: Current and Potential Difference Calculation
- smaung
- · Replies 9 ·
Checking if a Force is Conservative: A Tutorial
- asi123
- · Replies 3 ·
What is the Maximum Magnetic Force on an Electron in a Television Set?
- kdrobey
- · Replies 2 ·
Calculating Coefficient of Friction: Newton's 3rd Law Examples
- honeycoh
- · Replies 1 ·
Electric potential difference during a thunderstorm
- pumpkin485
- · Replies 1 ·
Planet Velocity at Aphelion: Find the Answer
- Ready2GoXtr
- · Replies 1 ·
Weight on a planet with 1/100 Earth's mass and 1/4 Earth's radius
- Ready2GoXtr
- · Replies 7 ·
A Proton Moving Freely in a Constant Magnetic Field
- myersb05
- · Replies 7 ·
Specific Heat Capacity & Temperature
- Christopher M
- · Replies 3 ·
Equilibrium and Tension: Finding a Tightrope Walker's Mass
- fatmanx
- · Replies 6 ·
How Do You Calculate the Two Possible Angles of an Airplane in a Magnetic Field?
- kdrobey
- · Replies 1 ·
Solenoid length of wire problem
- kayak4life87
- · Replies 6 ·
What is the Torque on a Looped Wire in a Uniform Magnetic Field?
- ketchuppy
- · Replies 4 ·
Calculating Maximum Magnetic Force on Electrons in a Television Set
- thompson.1674
- · Replies 3 ·
Rotational kinetic energy of a 200 kg flywheel at 3160 rad/s
- Djbari
- · Replies 4 ·
Calculating Force Between Parallel Wires
- waleye262
- · Replies 3 ·
Angular Frequency Change with Mouse Movement on Wagon Wheel
- sheevz
- · Replies 2 ·
Determining Velocity and Direction of Second Ball After Collision
- konceptz
- · Replies 7 ·
Destructive interference from airplane reflection at 1152 kHz
- jhoffma4
- · Replies 1 ·
How Far Did the Car Travel Given Work, Mass, and Coefficient of Friction?
- Takuya925
- · Replies 8 ·
Find the center of mass of a semi-circular plate
- Debelius
- · Replies 1 ·
Calculating Work Done by a Carnot Engine
- Darth Geek
- · Replies 5 ·
How Does Angular Acceleration Arise in a Rotating Cylinder with Multiple Forces?
- Ready2GoXtr
- · Replies 8 ·
How far are you from the intersection when you begin to apply the brakes?
- osker246
- · Replies 10 ·
Solving the Problem: Lever & Metal Wedge in Water
- alibaba2
- · Replies 1 ·
Special Relativity- Acceleration without Linear Algebra
- Battlemage!
- · Replies 3 ·
Exploring Energy of a Vertical Spring System
- nothing123
- · Replies 2 ·
Solving Freely Moving Mass Homework
- dirk_mec1
- · Replies 8 ·
Question about sound frequency of an organ ?
- physicsdawg
- · Replies 5 ·
Is My Spring Equation Correct? A Quick Check
- asi123
- · Replies 3 ·
Help Deriving formula for moment of inertia lab
- HT3
- · Replies 1 ·
Determine the horizontal component
- Larrytsai
- · Replies 2 ·
Why Does a Sliding Rod Lose Contact with the Wall at Two Thirds Its Height?
- gloacha
- · Replies 1 ·
Periodic wave direction question.
- NBAJam100
- · Replies 3 ·
What is the Total Time for a Sprinter Reaching Top Speed in 2.14 Seconds?
- osker246
- · Replies 3 ·
What Determines the Phase Constant in Oscillatory Motion?
- BioCore
- · Replies 5 ·
How Fast Does Water Exit a Hole in a Tank?
- Gear300
- · Replies 2 ·
How Do You Calculate Electrical Parameters of a Heater in an RLC Circuit?
- purduegirl
- · Replies 11 ·
Calculating Velocity from Kinetic Energy: A Homework Problem Solution"
- huskiehenne
- · Replies 1 ·
Potential Energy and the Electric Potential Difference
- WGDawg3
- · Replies 1 ·
Electric flux and electric fields
- aiaigasa
- · Replies 1 ·
How Does Newton's Laws Apply to a Piano on an Incline?
- joe_
- · Replies 1 ·
Projectile locust jump question
- HelloMotto
- · Replies 1 ·
Understanding Molecular Speed: Finding v avg and v-rms Using a Histogram
- Niki4444
- · Replies 2 ·
Circular Orbits of Satelites and Planets
- .NoStyle
- · Replies 23 ·
A dimensional analysis problem.
- lylos
- · Replies 2 ·
Springs - simple harmonic motion
- tascja
- · Replies 2 ·
I really on this physics homework
- Anotic20
- · Replies 1 ·
Gravitation vertical mine shaft question
- homomorphism
- · Replies 2 ·
Force on a square current loop near an infinite parallel wire
- Badger
- · Replies 6 ·
Wanna ask bout dimensional analysis
- pcfighter
- · Replies 4 ·
Max Wavelength of Electrons Emitted from Zinc Surface
- nathan17
- · Replies 7 ·
Acceleration on an Incline Plane: Solving for Unknowns
- HelloMotto
- · Replies 6 ·
How Do You Calculate the Charge and Energy in a Mixed Capacitor Circuit?
- Laxman2974
- · Replies 8 ·
Potential difference between plates
- kdrobey
- · Replies 5 ·
Determine the following electric potential differences
- kdrobey
- · Replies 8 ·