Introductory Physics Homework Help Forum

Post thread
Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
How Do You Calculate Force on a Passenger in an Accelerating Elevator?
  • · Replies 10 ·
Replies
10
Views
5K
Why Is Electrostatics Confusing in Physics Homework?
  • · Replies 1 ·
Replies
1
Views
2K
Energy and Simple Harmonic Motion.
  • · Replies 5 ·
Replies
5
Views
10K
Energy and Simple Harmonic Motion - Part II.
  • · Replies 4 ·
Replies
4
Views
7K
How Fast Does a Block Move on a Spring?
  • · Replies 21 ·
Replies
21
Views
4K
How Does the Phase Angle in SHM Equations Affect Displacement and Energy?
  • · Replies 2 ·
Replies
2
Views
5K
How does torque relate to changes in angular momentum?
  • · Replies 7 ·
Replies
7
Views
3K
Centripetal motion - swinging a bucket full of water
  • · Replies 2 ·
Replies
2
Views
13K
Simple harmonic oscillation question
  • · Replies 2 ·
Replies
2
Views
4K
Understanding Electric Field: Why is it Greater at Sharp Points?
  • · Replies 3 ·
Replies
3
Views
3K
Cat & Turntable: Angular Velocity Comparison?
  • · Replies 1 ·
Replies
1
Views
4K
How Does the Index of Refraction Change Across Different Materials?
  • · Replies 2 ·
Replies
2
Views
5K
How Can You Analyze LDR Response to Light Frequencies in AS Physics Coursework?
  • · Replies 6 ·
Replies
6
Views
4K
Period for real-life spring experiment
  • · Replies 5 ·
Replies
5
Views
3K
How Do You Convert Radiant Power to Irradiance for Solar Radiation Testing?
  • · Replies 1 ·
Replies
1
Views
7K
Kinetic Engergy in a Quantum Oscillator
  • · Replies 6 ·
Replies
6
Views
3K
Why Water is the Preferred Coolant for Car Engines: 3 Reasons Explained
  • · Replies 7 ·
Replies
7
Views
2K
Distance problem, Using Launcher need to find objects distance
  • · Replies 2 ·
Replies
2
Views
5K
Angular Momentum: Clarifying a Problem
  • · Replies 1 ·
Replies
1
Views
2K
Momentum-Intuitive feeling required
  • · Replies 1 ·
Replies
1
Views
2K
How Does a Pulley with a Mechanical Advantage of 2 Affect Force?
  • · Replies 1 ·
Replies
1
Views
4K
Calculating EMF from Coils in Rotating Magnetic Field
  • · Replies 4 ·
Replies
4
Views
5K
Exploring Periods in a Pendulum Lab with Logger Pro
  • · Replies 3 ·
Replies
3
Views
14K
How can I convert kilograms to centimeters?
  • · Replies 2 ·
Replies
2
Views
3K
Calculating Force Required to Drag a Carton of Books
  • · Replies 15 ·
Replies
15
Views
3K
How Does Mass and Height Affect the Angular Speed of a Rotating Bicycle Wheel?
  • · Replies 1 ·
Replies
1
Views
3K
Block hanging from spring when a second block is added
  • · Replies 1 ·
Replies
1
Views
3K
Vertical Circular Motion on Excalibur Ride
  • · Replies 1 ·
Replies
1
Views
3K
How Is Acceleration Calculated for a Freely Falling Yoyo?
  • · Replies 5 ·
Replies
5
Views
4K
Calculating Orbital Parameters of Halley's Comet
  • · Replies 8 ·
Replies
8
Views
2K
Is Strain Dimensionless According to Dimensional Analysis?
  • · Replies 2 ·
Replies
2
Views
5K
Oscillation equilibrium problem
  • · Replies 4 ·
Replies
4
Views
2K
How do i find the value of cos(theta)
  • · Replies 3 ·
Replies
3
Views
7K
Finding the Minimum Coefficient of Friction Equation
  • · Replies 10 ·
Replies
10
Views
3K
Motion involving both translation and rotation
  • · Replies 3 ·
Replies
3
Views
5K
Conservation of Angular Momentum in a Rotating System
  • · Replies 4 ·
Replies
4
Views
14K
Finding the density of a liquid with buoyancy
  • · Replies 2 ·
Replies
2
Views
14K
What is the tension in the cylindrical wire?
  • · Replies 1 ·
Replies
1
Views
2K
Angular Momentum (train on a track)
  • · Replies 2 ·
Replies
2
Views
4K
How Does Stirring Affect Water's Temperature Increase?
  • · Replies 6 ·
Replies
6
Views
12K
Gravitational Attraction Between Two Balls
  • · Replies 5 ·
Replies
5
Views
2K
Period T & Length: Can the Term in Parentheses be Constant?
  • · Replies 2 ·
Replies
2
Views
8K
Finding velocity taking the pulley into consideration
  • · Replies 8 ·
Replies
8
Views
2K
Calculating Diving Board Force: 596N Diver, 1.9m from Fulcrum, 114N Board
  • · Replies 15 ·
Replies
15
Views
8K
Is My Calculation for Cylinder and Piston Height Correct?
  • · Replies 5 ·
Replies
5
Views
19K
What will be the potential difference?
  • · Replies 1 ·
Replies
1
Views
2K
Deciding on a Field of Physics: A 4th Year Undergrad's Story
  • · Replies 1 ·
Replies
1
Views
3K
What is the period of oscillation in this graph?
  • · Replies 2 ·
Replies
2
Views
4K
Calculating Gauge Pressure in a Steady Water Flow System
  • · Replies 2 ·
Replies
2
Views
10K
Hard nuclear physics cross section problem
  • · Replies 8 ·
Replies
8
Views
5K
Equilibrium problem with a building: I can't figure it out
  • · Replies 2 ·
Replies
2
Views
3K
I with some Equilibrium problems
  • · Replies 7 ·
Replies
7
Views
5K
Conservation of rotational energy
  • · Replies 1 ·
Replies
1
Views
5K
Angular Momentum of a playground ride
  • · Replies 5 ·
Replies
5
Views
5K
Finding the Maximum Time for a Rocket's Flight Using Kinematics
  • · Replies 5 ·
Replies
5
Views
2K
Impossible problem? [Varibles ONLY]
  • · Replies 2 ·
Replies
2
Views
2K
What Happens When a Force is Applied to a Yoyo?
  • · Replies 4 ·
Replies
4
Views
3K
Calculating Forces in a Rotating Lunch Tray
  • · Replies 2 ·
Replies
2
Views
4K
Viscosity and density of glycerol
  • · Replies 1 ·
Replies
1
Views
3K
Paperthickness measured by radiation
  • · Replies 6 ·
Replies
6
Views
2K
Angular momentum and linear momentum
  • · Replies 8 ·
Replies
8
Views
6K
How Do You Solve a Pulley System Problem with Frictionless Incline?
  • · Replies 6 ·
Replies
6
Views
2K
Calculate Entropy Change for Adiabatic Process of Argon Gas
  • · Replies 2 ·
Replies
2
Views
5K
Exactly Why doesn't the moon fall and strike the earth?
  • · Replies 5 ·
Replies
5
Views
22K
Bullet hitting block attached to spring
  • · Replies 2 ·
Replies
2
Views
13K
Calculating the required energy for throwing a tennis ball into space
  • · Replies 4 ·
Replies
4
Views
3K
How Does Speed Affect Car Fuel Efficiency and Required Forces?
  • · Replies 1 ·
Replies
1
Views
3K
Understanding the Relationship Between Static and Kinetic Friction on Wet Roads
  • · Replies 3 ·
Replies
3
Views
3K
What are the forces acting on a stationary box pushed against a wall?
  • · Replies 7 ·
Replies
7
Views
12K
How Does Potential Drop Equal Supplied Voltage in a Resistance-Free Circuit?
  • · Replies 7 ·
Replies
7
Views
2K
Gravity Problem Help - Find Acceleration of Gravity 3000 Miles Above Earth
  • · Replies 2 ·
Replies
2
Views
2K
Elastic Potential Energy Question tough
  • · Replies 15 ·
Replies
15
Views
5K
Work Input vs Work Output in Pulley Systems
  • · Replies 1 ·
Replies
1
Views
7K
What will be the amplitude and frequency of vibration
  • · Replies 1 ·
Replies
1
Views
17K
Force acting on a particle between a tube and a wire (elektrodynamics)
  • · Replies 10 ·
Replies
10
Views
3K
A Solid Sphere Release From Rest at the top of a Ramp.
  • · Replies 1 ·
Replies
1
Views
6K
The Sun's Power Output: Solving for P
  • · Replies 6 ·
Replies
6
Views
2K
How Do Equilibrium and Elasticity Determine Stress and Strain in a Steel Post?
  • · Replies 1 ·
Replies
1
Views
4K
Explanation needed in angular acceleration
  • · Replies 3 ·
Replies
3
Views
5K
Solving the Problem: Work, Power & Friction
  • · Replies 5 ·
Replies
5
Views
2K
Fluids bernoulli's equation problem
  • · Replies 3 ·
Replies
3
Views
7K
How Do You Calculate the Force to Accelerate a Cart in a Pulley Experiment?
  • · Replies 1 ·
Replies
1
Views
2K
What is the frequency of the bobbing raft with a 4990 kg load in fresh water?
  • · Replies 2 ·
Replies
2
Views
4K
How Quickly Can a Rock Be Hoisted with Limited String Strength?
  • · Replies 1 ·
Replies
1
Views
2K
Solving a Physics Problem: How Far Will the Ball Land?
  • · Replies 4 ·
Replies
4
Views
6K
What is the tension in the coupling
  • · Replies 2 ·
Replies
2
Views
2K
How Do You Convert Different Units of Measurement in Physics?
  • · Replies 4 ·
Replies
4
Views
8K
Reason for Different Focus Distances in Converging Lens Lab
  • · Replies 12 ·
Replies
12
Views
13K
Find Speed and conservation of energy.
  • · Replies 2 ·
Replies
2
Views
3K
Calculate ME of a Pendulum: Length 130 cm, Amplitudes 2.1 & 3.9 cm
  • · Replies 3 ·
Replies
3
Views
3K
Proving the Law of Conservation of Momentum: An Example
  • · Replies 6 ·
Replies
6
Views
3K
High Road Low Road: Energy Principles Comparison
  • · Replies 20 ·
Replies
20
Views
10K
How Does Friction Affect Rotational Motion in Physics Problems?
  • · Replies 2 ·
Replies
2
Views
3K
How Do You Solve These Challenging Physics B Problems?
  • · Replies 4 ·
Replies
4
Views
13K
Satellite Problems: Find Velocity of Satellite 3600km Above Earth
  • · Replies 5 ·
Replies
5
Views
3K
Radius of Curvature of Convex Mirror: -17.39 cm
  • · Replies 1 ·
Replies
1
Views
3K
Finding torque (vector cross product)
  • · Replies 1 ·
Replies
1
Views
12K
E&M Physics. Potential Difference
  • · Replies 2 ·
Replies
2
Views
3K
Calculating Work and Friction for a Flight Attendant's Bag: A Helpful Guide
  • · Replies 6 ·
Replies
6
Views
3K
Finding the Third Force to Achieve Zero Total Torque on an Equilateral Triangle
  • · Replies 4 ·
Replies
4
Views
9K