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.
2 Quck Questions on Work and Energy
  • bigpapasmurf
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Conservation of energy and height of projectile
  • numb401
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4
What am I doing wrong with the AMU conversion?
  • Sunny1261
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2
Physics/Chem Gas, Pressure, Volume, Temperature Question
  • BugsSport
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3
What is the Coefficient of Kinetic Friction for a Puck Sliding on Ice?
  • c_mellis
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Potential Energy and Conservation of Energy Problems
  • Matthew.C21
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5
How Do You Calculate the Amplitude of Forced Oscillation in SHM?
  • ronny45
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Accceleration/Velocity questions
  • ariol
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Projectile motion - velocity/time unknown
  • zombiemegan22
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Rocket Propulsion Homework: Calculating Mass Loss R
  • nns91
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How Far Does a Greyhound Leap When Chasing a Hare?
  • wallace13
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Calculate Tension in Transverse Wave on String: Linear Density 1.87x10-2kg/m
  • wesochick6
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5
What is the largest wavelength for emission of electrons from a photosurface?
  • prakriti
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Best wishes,HarleyNeed help with applied maths problems?
  • jackiemoon
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Why is the gradient constant in Figure 2?
  • nokia8650
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6
How Fast Must a Person Run to Catch a Ball Dropped from a Building?
  • wallace13
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2
Space shuttle Atlantis orbit question
  • ahrog
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4
Physics 20-1: Energy Homework Solutions
  • physicznoob
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4
Resultant force in equilateral triangle
  • en5980
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2
What are the operations on vector field A and how do I simplify the results?
  • gcooke
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2
I from someone who has recently taken A-Level physics
  • jenga42
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Asteroid Speed: Calculating with Kinetic Energy
  • ahrog
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1
Kinematics 1 Dimension, Person Running Solve for Time
  • marindo
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1
Total centripetal acceleration ringworld
  • Maiia
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1
Gravitational acceleration/ centripetal
  • Maiia
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Spring Energy-a block slides down a frictionless incline plane
  • lu6cifer
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1
Forces and Newton's Laws with vectors help
  • delfam
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Electromagnetic waves & induced EMF
  • sskakam
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3
Circluar Motion Involving Rotations Per Minute
  • fishyfish
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1
How to Calculate the Speed of Water Exiting a Shower Head with 24 Holes?
  • keemosabi
  • · Replies 10 ·
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10
Can Dropping Objects Increase Momentum?
  • icedoverfire
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5
Impulse/Change in Momentum Problem
  • diburning
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2
How Is the Average Pressure of Hailstones on a Window Calculated?
  • xago
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1
How to Prove This Fourier Series Summation Equation?
  • thelegend09
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1
Satellite Orbital Speed at 10% Gravity
  • TonkaQD4
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Why Increasing Pully B's Diameter is Incorrect
  • syang9
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3
Momentum Review: Force & Time for Rhonda's Brakes/Windshield
  • andthismeans
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Does work depend on the direction of displacement?
  • yoleven
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Physical Proof that these movies obey Laws of Physics
  • 613theprince
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Verifying that a critical damped oscillator approaches zero the fastest.
  • Quantumpencil
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How Can You Improve Your Understanding of Physics at Future Academy Egypt?
  • eng.crash
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Calculate the Moon's Synodic Period from a graph
  • TFM
  • · Replies 10 ·
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Forced oscillation, Equation of Motion and verifying solutions
  • sm1t
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Finding Charge and Potential Difference in Capacitor Series | Homework Help
  • jakey
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2
Calculate Force Needed to Tip a Rectangular Prism
  • flfgw
  • · Replies 15 ·
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Doppler Effect of a security alarm
  • adashiu
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What Is the Force on a Crate When a Midpoint Rope Is Pulled?
  • acsin92
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Right Hand Rule Associated Question
  • Fizickstudent
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FB Diagram Problem: Is My Sketch Correct?
  • chemic_23
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5
Momentum/Impulse [Final Velocity]
  • silverduelist
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Difficult mechanics problem - is this even possible to solve?
  • Anonymouse
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Calculation of Electric field Density(easy question, )
  • wringer
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6
Water in the Bucket: Free Body Diagram? (Vertical Centripetal Force)
  • sarvashreshth
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Electromagnetic wave reflection
  • adashiu
  • · Replies 8 ·
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Conservation of energy regarding electrons
  • theowne
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5
No one has figured this out Problem I'm stuck
  • dken221
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2
Helping My Autistic Son with Momentum and Friction in a Dog's Movement
  • Sgt
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Please help with the ultimate physics problem Any help would be great
  • toasted
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Why is the Height of a Mass Launched by a Spring Dependent on its Mass?
  • syang9
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What is the Half Value Thickness for Lead at 0.4 MeV and 1.59 cm^-1?
  • foxandthehen
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Physics project: Self propelled car
  • Arix
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How Do Mass and Speed Affect Kinetic Energy in Cars?
  • me_and_you
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Gauss's Law 2 concentric cylinders in electrostatic equilibrium
  • shale
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Screwed joint - free body diagram
  • tihort
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Determine the value of pressure in pascals
  • ch2kb0x
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Simple(ish) mechanics problem, conservation of energy
  • grahammtb
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Electricity and magnetism - planar symmetry question: plastic sheets
  • thehammer
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How Much of the Wooden Block Emerges When Floating in Water Compared to Alcohol?
  • dude123
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Moving clocks and time dialation question
  • phja
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What is the relationship between back EMF and rotor frequency in a motor?
  • maccha
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What is the speed of a ball released at the bottom of a vertical circular path?
  • alevis
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Electrostatic Series: Does Rubber & Glass Affect Charged Comb?
  • jwj11
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How to Determine the Coefficient of Friction for a Sliding Brick?
  • dreamgirl
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Pressure in side a bag, that has been microwaved: Problem 12.19
  • laxmanic33
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Angular Momentum: Work Done & Frequency Change
  • Dell
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What average force was exerted on the player by the ball ?
  • nns91
  • · Replies 16 ·
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Calculating Pressure in a Meteorological Balloon at -20.0C
  • LFoschiatti
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Minimum Work Needed to Push 1000kg Car 300m Up 17.5o Incline
  • Littlemin5
  • · Replies 12 ·
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Kinetic velocity independ. of direction?
  • razored
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Height, Velocity, Angle, Gravity = Range
  • Crookes
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Calculating the Period of Mars in Earth Years Using Gravitational Equations
  • krimor09
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Sphere Rolling vs. Sliding Down a Ramp
  • oranim2
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Beat Frequency: Find Frequency with Wavelength of 3.141m & 3.135m
  • adashiu
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Moment of Inertia Ball and Stick Collision
  • tachu101
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Lamp Brightness in Parallel Circuit
  • calculator20
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What is the smallest vertical force which will move the crate
  • Air
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Trying to Find Center of Gravity on Semi Truck (a real one)
  • Saladsamurai
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What Is the Initial Velocity of the Ball in a Collision with a Swinging Pole?
  • Dell
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What Are the Key Steps to Solve A-Lev Physics Gas and Thermal Exam Questions?
  • NeroBlade
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What are the Moments of Inertia for a Ball and Hoop on a Ramp?
  • vector7
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Troubleshooting Centripetal Force Lab Calculations: What Went Wrong?
  • Elbobo
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What is the electron concentration in a p-doped semiconductor?
  • peanutbutter
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Determining Particle Type from Energy: Relativistic Approach
  • DukeLuke
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How to Determine Forces and Tension in a Rolling Disk and Attached Mass System?
  • tachu101
  • · Replies 9 ·
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Photoelectric Surface: Work Function & Kinetic Energy
  • potamus
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Energy, Power, Work related question
  • alevis
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Showing that energy of a falling object remains constant
  • MadmanMurray
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Does Increasing Torque Affect Kinetic Friction When a Wheel Slips?
  • Just a nobody
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How Do You Solve These Constant Acceleration Problems?
  • Meghal
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Calculating Velocity and Displacement Using Acceleration Formula | Train Example
  • MagMag
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