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.
What is the relationship between angular velocity and tangential velocity?
  • · Replies 6 ·
Replies
6
Views
6K
Calculating Frequency of Oscillating Mass on a Spring
  • · Replies 4 ·
Replies
4
Views
18K
What Determines the Charge of an Object in Electrostatic Induction?
  • · Replies 4 ·
Replies
4
Views
9K
Direction of the net force on the charge
  • · Replies 2 ·
Replies
2
Views
3K
Capacitors disconnected from the battery
  • · Replies 3 ·
Replies
3
Views
22K
Series Circuit: 10 Ohm Resistor, Bulb, 12V Source
  • · Replies 9 ·
Replies
9
Views
4K
Solving Projectile Motion: Horizontal & Vertical Distances
  • · Replies 1 ·
Replies
1
Views
2K
Calculating Work Required to Lift a Hanging Chain
  • · Replies 2 ·
Replies
2
Views
4K
Equal and Opposite variable forces on a mass - does it accelerate?
  • · Replies 1 ·
Replies
1
Views
4K
Swinging from a vine (circular motion/tension problem)
  • · Replies 4 ·
Replies
4
Views
12K
How Do You Calculate Stopping Distance Using a Velocity-Time Graph?
  • · Replies 1 ·
Replies
1
Views
3K
Calculating direction of magnitude of a crate on a ramp
  • · Replies 2 ·
Replies
2
Views
8K
Calculating Radial Acceleration in Nonuniform Circular Motion
  • · Replies 12 ·
Replies
12
Views
3K
What Is the Final Velocity of the Wood After Bullets Impact?
  • · Replies 3 ·
Replies
3
Views
2K
Find the magnitude of the electric field at the center
  • · Replies 5 ·
Replies
5
Views
13K
Potential vs Kinetic Energy Help
  • · Replies 1 ·
Replies
1
Views
2K
How Does a Rock Climber Use Friction to Climb?
  • · Replies 3 ·
Replies
3
Views
3K
Work and energy - 90% done, just need little clarification
  • · Replies 4 ·
Replies
4
Views
8K
What Is the Final Velocity of a 2 kg Mass on a Frictional Incline?
  • · Replies 3 ·
Replies
3
Views
4K
Need help converting a function of displacement to a function of time.
  • · Replies 5 ·
Replies
5
Views
3K
Find force link 3 exerts on link 2
  • · Replies 2 ·
Replies
2
Views
11K
Circular Motion - Roadway Bank Angle
  • · Replies 3 ·
Replies
3
Views
11K
AP Physics: Vectos and their properties
  • · Replies 4 ·
Replies
4
Views
9K
Partial derivatives with Wave Function
  • · Replies 2 ·
Replies
2
Views
7K
Projectile Motion Using Speed Graph
  • · Replies 3 ·
Replies
3
Views
4K
Calculating Work Done on a Block Moving Up an Incline
  • · Replies 3 ·
Replies
3
Views
8K
Temperature variation of resistance
  • · Replies 11 ·
Replies
11
Views
6K
How Do You Calculate Velocity and Energy in an Elastic Collision?
  • · Replies 4 ·
Replies
4
Views
30K
Non-Physics Major Needs Physics Help
  • · Replies 1 ·
Replies
1
Views
3K
PHYSiCS NEED HELP please show work
  • · Replies 2 ·
Replies
2
Views
3K
Electric motors & faraday's law
  • · Replies 1 ·
Replies
1
Views
3K
What Is the Error of Log(mh) When m and h Have Known Relative Errors?
  • · Replies 1 ·
Replies
1
Views
6K
Hanging Mass Tension Problem: What is the tension in each cable?
  • · Replies 8 ·
Replies
8
Views
41K
Applications of Faraday's Law: Deflection of Pointer in a Magnet-Coil System
  • · Replies 2 ·
Replies
2
Views
4K
Physics lab help, determining acceleration thru V vs T graph?
  • · Replies 27 ·
Replies
27
Views
8K
Minimum speed to maintain a circular trajectory
  • · Replies 1 ·
Replies
1
Views
2K
How Fast Can a Rock Spin Before the String Breaks?
  • · Replies 3 ·
Replies
3
Views
7K
Regents Problems Best Solution
  • · Replies 1 ·
Replies
1
Views
2K
Crates with diff. mass inside elevator at constant speed
  • · Replies 1 ·
Replies
1
Views
4K
What is the Electric Field Outside a Pipe with a Uniform Charge Density?
  • · Replies 4 ·
Replies
4
Views
2K
Calculate displacement based on velocity and acceleration
  • · Replies 3 ·
Replies
3
Views
30K
A rocket is launched kinematics
  • · Replies 1 ·
Replies
1
Views
10K
Understanding the Relationship between Tension, Teeth, and Force
  • · Replies 3 ·
Replies
3
Views
6K
Calculating Minimum Force for Stationary Block Against Wall
  • · Replies 4 ·
Replies
4
Views
3K
Calculating the Frequency of a Tuning Fork Using Resonance Tube Method
  • · Replies 4 ·
Replies
4
Views
2K
Potential Difference in a Capacitor
  • · Replies 3 ·
Replies
3
Views
11K
Kinematics equations with collision fo 2 balls
  • · Replies 1 ·
Replies
1
Views
5K
What Was the Initial Speed of the Horizontally Shot Arrow?
  • · Replies 2 ·
Replies
2
Views
9K
Determine the centripetal force
  • · Replies 2 ·
Replies
2
Views
3K
A Terrible Accident involving a Barrel of Bricks and a lot of Force
  • · Replies 3 ·
Replies
3
Views
11K
Instantaneous Power (Mastering Physics)
  • · Replies 3 ·
Replies
3
Views
24K
How do I find the correct magnitude using vectors and magnitudes?
  • · Replies 6 ·
Replies
6
Views
2K
General equation for fractional error
  • · Replies 8 ·
Replies
8
Views
26K
How Do You Solve Physics Problems Involving Velocity and Pendulum Equations?
  • · Replies 2 ·
Replies
2
Views
2K
Electric potential difference question
  • · Replies 1 ·
Replies
1
Views
2K
How Fast Can You Drive Without Hitting the Deer?
  • · Replies 1 ·
Replies
1
Views
3K
Uncovering the Mass of an Object on Planet X
  • · Replies 3 ·
Replies
3
Views
8K
Optimizing Silk Strand Diameter for Maximum Tensile Strength
  • · Replies 18 ·
Replies
18
Views
19K
Understanding the Best Fit Line: What Does It Mean?
  • · Replies 3 ·
Replies
3
Views
3K
Help with question on forces with motion, tension, friction
  • · Replies 3 ·
Replies
3
Views
2K
How does increasing potential difference affect the magnetic force on electrons?
  • · Replies 3 ·
Replies
3
Views
3K
Velocity vs time graph to distance vs time graph
  • · Replies 8 ·
Replies
8
Views
76K
Calculating Height of Ball Thrown at 30 Degrees
  • · Replies 7 ·
Replies
7
Views
2K
Electric energy stored in dipole
  • · Replies 1 ·
Replies
1
Views
4K
How Do You Calculate Angles from Acceleration Data in Different Motion States?
  • · Replies 8 ·
Replies
8
Views
9K
Calculating Young's Modulus for Iron Wire Experiment
  • · Replies 3 ·
Replies
3
Views
3K
How Does a Parallel Plate Capacitor with Different Dielectrics Calculate Keq?
  • · Replies 1 ·
Replies
1
Views
3K
What is the Maximum Tension Force for a Block on an Inclined Surface?
  • · Replies 2 ·
Replies
2
Views
2K
How Do You Calculate the Optimal Launch Angle for a Marble on a Sloped Track?
  • · Replies 1 ·
Replies
1
Views
3K
Finding distance using force, acceleration, time
  • · Replies 3 ·
Replies
3
Views
19K
Surface Charge Density and electron
  • · Replies 2 ·
Replies
2
Views
4K
Help with a VT Graph: Acceleration & Deceleration Explained
  • · Replies 3 ·
Replies
3
Views
3K
Time for boat to make two sets of displacements
  • · Replies 3 ·
Replies
3
Views
3K
How can I transform a parabolic or hyperbolic graph into a linear one?
  • · Replies 1 ·
Replies
1
Views
7K
Young's modulus of a copper wire
  • · Replies 2 ·
Replies
2
Views
20K
Calculus: Given parabola and vx in terms of x and c, prove constant velocity
  • · Replies 1 ·
Replies
1
Views
8K
Simple Circuit with Resistors and Two Batteries
  • · Replies 7 ·
Replies
7
Views
17K
Calculating Neutrino Passage in a Supernova Explosion
  • · Replies 8 ·
Replies
8
Views
3K
Terminal Speed and Height of Object
  • · Replies 9 ·
Replies
9
Views
7K
Path of Electron in Magnetic Fields | 0.1mT & 1.0mT
  • · Replies 1 ·
Replies
1
Views
2K
Simple Harmonic Motion Differential Equation
  • · Replies 6 ·
Replies
6
Views
7K
Solving Machine Problem 1: Frictionless Steel Shuttle
  • · Replies 3 ·
Replies
3
Views
2K
Friction needed so car does not spin out? how do you do this?
  • · Replies 1 ·
Replies
1
Views
3K
How can I determine the vertical distance the ball clears the wall?
  • · Replies 1 ·
Replies
1
Views
2K
2 trains colliding, where am I wrong?
  • · Replies 3 ·
Replies
3
Views
2K
How Do You Calculate Displacement from a Velocity-Time Graph?
  • · Replies 4 ·
Replies
4
Views
31K
What is the speed of the boat after time 2.00 hr has passed?
  • · Replies 2 ·
Replies
2
Views
8K
How Does a Double-Pulley Modified Atwood Machine Work?
  • · Replies 1 ·
Replies
1
Views
11K
Minimum length of the mirror required for a man to see the wall behind him?
  • · Replies 5 ·
Replies
5
Views
6K
Rocket Acceleration: Kinematics Problem Solved
  • · Replies 8 ·
Replies
8
Views
2K
Atomic Structure: Impact of 663nm Photon on Excited Hydrogen Atom
  • · Replies 4 ·
Replies
4
Views
3K
Linearizing tunnel diode equation
  • · Replies 2 ·
Replies
2
Views
5K
Relative Velocity Homework: Solve for Ball Rise Height
  • · Replies 3 ·
Replies
3
Views
2K
Mass is suspended and swung around, find angle?
  • · Replies 1 ·
Replies
1
Views
3K
Equivalent resistors/capacitors etc. tricky problem
  • · Replies 1 ·
Replies
1
Views
3K
Muon Decay at t=2.2x10^-6s in Frame s': Coordinates and Time
  • · Replies 1 ·
Replies
1
Views
1K
Tell me the fourmla for displacement
  • · Replies 3 ·
Replies
3
Views
2K
Momentum Loss in Space Shuttle on Re-Entry to Earth
  • · Replies 2 ·
Replies
2
Views
2K
Wavefunctions and probability-Proof
  • · Replies 2 ·
Replies
2
Views
2K
Finding centripetal acceleration
  • · Replies 6 ·
Replies
6
Views
43K