Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Newtons law Dynamics Question 4
  • Nelonski
  • · Replies 10 ·
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10
Significant figures with multiplication
  • ikihi
  • · Replies 4 ·
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4
Grade 12 Physics: When Equation = 0
  • j-fusion
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2
RL Circuit Analysis: Comparing Resistor and Coil Voltages
  • member 392791
  • · Replies 3 ·
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3
High temperatures, nucleons, early universe
  • Cogswell
  • · Replies 1 ·
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1
Newtons laws, dynamics questions
  • Nelonski
  • · Replies 1 ·
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1
Worded Problem, Probability Density, quantum mechanics
  • Cogswell
  • · Replies 20 ·
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20
Net displacement with 3 figures
  • ikihi
  • · Replies 7 ·
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7
Showing work is path independent
  • hellocello
  • · Replies 6 ·
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6
Why Is My Calculation of i1 Using KCL and Ohm's Law Incorrect?
  • xlu2
  • · Replies 1 ·
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1
Help Needed: Solving KCL Equations with Picture Provided
  • xlu2
  • · Replies 6 ·
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6
Net displacement problem with two triangles
  • ikihi
  • · Replies 15 ·
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15
Circuit analysis is this correct?
  • Questions999
  • · Replies 18 ·
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18
Force and acceleration in object at rest
  • blueberryfive
  • · Replies 3 ·
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3
Can you guys check these calculations for me
  • bobsrevenge999
  • · Replies 1 ·
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1
Why Do the Calculated Mesh Currents Not Balance Power in Each Loop?
  • xlu2
  • · Replies 7 ·
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7
Electric Potential and Electric Energy
  • totallyclone
  • · Replies 3 ·
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3
Find the percentage uncertainty of a wooden block
  • agentlee
  • · Replies 2 ·
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2
How to Solve Circuit Nodal Analysis for Vx?
  • xlu2
  • · Replies 4 ·
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4
Lenz's law and conservation of energy
  • annie122
  • · Replies 28 ·
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28
Height of fluid and Bernoullis equation
  • radiator0505
  • · Replies 2 ·
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2
Turning effects, moments, levers, determing the magnitude of the force
  • lolyland
  • · Replies 4 ·
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4
Kinematics of three runners in a race
  • bkraabel
  • · Replies 8 ·
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8
Two objects accelerate from rest with the acceleration of Object A twi
  • needingtoknow
  • · Replies 7 ·
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7
How Should the Parabolic Dish Be Aligned for Optimal Radio Wave Reception?
  • rqyytrf
  • · Replies 6 ·
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6
Understanding the Negative Power Delivered in Circuits
  • Mdhiggenz
  • · Replies 3 ·
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3
Error in my textbook? scientific notation conversion
  • ikihi
  • · Replies 5 ·
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5
How Much Energy is Stored in a 1.5 V Battery with a Rating of 1,800 mAh?
  • aChordate
  • · Replies 1 ·
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1
Change in watts and power dissipated
  • aChordate
  • · Replies 8 ·
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8
Finding internal resistance from 2 circuits
  • BathroomUser
  • · Replies 9 ·
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9
Velocity-Dependent Resistive forces
  • chief114
  • · Replies 12 ·
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12
Circuit analysis is this correct?
  • Questions999
  • · Replies 2 ·
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2
Energy Needed to Evaporate Water at 289.1 torr: Table of Pressures
  • oldandcurious
  • · Replies 1 ·
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1
Magnetic field at centre and inside the toroid
  • Saitama
  • · Replies 6 ·
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6
Speed of wave from wave equation.
  • back2square1
  • · Replies 5 ·
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5
Lightbulbs and power/resistance
  • annie122
  • · Replies 4 ·
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4
Charge on Capacitors in Series with 24V Potential Difference
  • gralla55
  • · Replies 2 ·
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2
Calculating Catapult Velocity: Grade 12 Physics Guide
  • kervyn
  • · Replies 4 ·
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4
Increase in Internal Energy of a gas during compression
  • Vegie
  • · Replies 10 ·
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10
Is Radiation the Primary Method of Heat Transfer in a Brick Oven?
  • zoiberg137
  • · Replies 5 ·
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5
Confirming Faraday's Law - interference in measurement.
  • peripatein
  • · Replies 8 ·
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8
How Does String Length and Tension Affect Wave Frequency and Harmonics?
  • pakman127
  • · Replies 3 ·
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3
How does resistance change with temperature for Ohmic conductors and filaments?
  • GingerPrince
  • · Replies 1 ·
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1
Why are the bass notes of a car radio heard by people on the street an
  • needingtoknow
  • · Replies 2 ·
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2
What is the Path of a Cricket Ball During a Bowler's Run Up?
  • eejpama
  • · Replies 4 ·
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4
Circuit Analysis: Solving for i Using Nodal Potential Method
  • Questions999
  • · Replies 1 ·
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1
Commutators of Operators and Constants: A Quantum Mechanics Exercise
  • Cogswell
  • · Replies 1 ·
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1
Where Do I Begin? Overcoming Fear and Building Foundations in Physics
  • noork85
  • · Replies 6 ·
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6
Finding current density given B-field
  • Saitama
  • · Replies 6 ·
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6
How to subject the PR2 from a given equation?
  • PA3040
  • · Replies 6 ·
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6
Ray diagrams for an astronomical telescope
  • [KNIGHT]
  • · Replies 2 ·
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2
Ampere's Law-cylindrical shell
  • Krikri
  • · Replies 4 ·
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4
A Beam of rectangular cross section 200mm deep and 100mm wide
  • forexpipz
  • · Replies 1 ·
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1
Currents in a Wire and a Cylindrical Shell
  • CoolBeanz99
  • · Replies 5 ·
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5
Electric potential and velocity
  • san203
  • · Replies 7 ·
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7
Capacitance value between two conducting plates.
  • beyondlight
  • · Replies 12 ·
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12
Find various voltages for the following circuit
  • skyturnred
  • · Replies 11 ·
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11
Doppler Effect (Sound) - Source moving away from the Observer
  • Armenio
  • · Replies 8 ·
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8
Finding coefficient of friction
  • 462chevelle
  • · Replies 18 ·
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18
Simple temperature conversion problem
  • coolbyte
  • · Replies 2 ·
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2
How Far Can a Piston Fall Down a 100-Foot Cylinder?
  • Thomas38740
  • · Replies 8 ·
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8
Uniform Circular Motion Question (Mechanics/Physics I)
  • adamwest
  • · Replies 2 ·
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2
Solving for distance with frictionless inclined plane
  • physicsballer2
  • · Replies 4 ·
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4
Check my answer please simple current/power problem
  • nchin
  • · Replies 5 ·
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5
Newtons third law question- Action reaction pair
  • Nelonski
  • · Replies 1 ·
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1
Free body diagram of person in elevator Help
  • Nelonski
  • · Replies 1 ·
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1
Solving Work and Force of Wagon and Child
  • physicsballer2
  • · Replies 11 ·
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11
Solving for inertia and angular speed
  • physicsballer2
  • · Replies 3 ·
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3
How Does Weight Impact Momentum and Kinetic Energy in Air Track Experiments?
  • physicsguru97
  • · Replies 3 ·
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3
Do magnets attract all metals, and is the speed of light in a water
  • x86
  • · Replies 6 ·
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6
Calculating Energy of Two Masses on a Spring
  • bessletama
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Electron entering a magnetic field
  • Saitama
  • · Replies 7 ·
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7
Calculate Capillary Depression of Mercury in Glass Tube
  • v_pino
  • · Replies 3 ·
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3
Potential Energy and Work done to lift object distance h
  • physicsballer2
  • · Replies 1 ·
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1
Calculating Gravity with Pendulum - Factors of influence
  • MassivePhysics
  • · Replies 4 ·
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4
Troubleshooting Vector Angles in Three Dimensions
  • whynot314
  • · Replies 1 ·
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1
Baseball change of direction Force and Impulse
  • physicsballer2
  • · Replies 2 ·
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2
Determining the Direction of Induced Emf in an Aeroplane's Wing Tips
  • kingstar
  • · Replies 5 ·
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5
When Magnetic field is suddenly switched off
  • AGNuke
  • · Replies 13 ·
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13
2 questions about waves (interference, resonance)
  • coconut62
  • · Replies 4 ·
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4
Rotational Equilibrium Homework Help
  • Repolar
  • · Replies 2 ·
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2
Solving for Vr and VL in an RLC Circuit
  • k31453
  • · Replies 25 ·
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25
Another Mechanics Problem Using Vectors
  • FaraDazed
  • · Replies 4 ·
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4
A farsighted man with eyeglasses problem
  • KendrickLamar
  • · Replies 3 ·
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3
What is the correct orientation for calculating emf using Faraday's law?
  • gralla55
  • · Replies 17 ·
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17
What is the magnitude and difrection of the acceleration?
  • shin777
  • · Replies 1 ·
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1
Rollercoaster problem - kinematics & forces
  • AgentRedfield
  • · Replies 10 ·
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10
Potential Differences and Currents in a Diamond Circuit
  • . Arctic.
  • · Replies 8 ·
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8
Graphs of Frequency for Car Moving in a Circle
  • Knightycloud
  • · Replies 24 ·
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24
Induced Current Problem(Electromagnetism)
  • pjwasz
  • · Replies 6 ·
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6
What is the Magnetic Field Inside a Cylindrical Cavity in a Conductor?
  • Saitama
  • · Replies 10 ·
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10
Can the Impedance of Series RC and Parallel RL Circuits be Equal with Same R?
  • phantomfx8192
  • · Replies 1 ·
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1
Solving for Ix: Find Current Given R & V
  • xlu2
  • · Replies 7 ·
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7
Nonuniform Circular Motion - Find Maximum Total Acceleration
  • LovePhys
  • · Replies 3 ·
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3
Find the photoelectric work function for this metal
  • icelated
  • · Replies 6 ·
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6
RLC Circuit: Calculate Resonant Frequency, Reactance & Impedence
  • k31453
  • · Replies 1 ·
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1
Mechanics Problem with I/J vectors
  • FaraDazed
  • · Replies 3 ·
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3
Practice Finals Multiple Choice
  • Jaymo3141
  • · Replies 2 ·
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2
Centrifugal and centripetal force
  • Noziroh
  • · Replies 1 ·
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1
Conservation Of Kinetic Energy Problem
  • FredericChopin
  • · Replies 9 ·
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9