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 are the dimensionally consistent powers in the expression v = a^p * t^q?
  • · Replies 10 ·
Replies
10
Views
9K
Solving cos^-1 (3/7): Exact Trigonometric Values and Techniques
  • · Replies 4 ·
Replies
4
Views
4K
Unsolved Textbook Exercises: Seeking Help and Solutions
  • · Replies 54 ·
2
Replies
54
Views
6K
Thrown ball velocity and acceleration
  • · Replies 3 ·
Replies
3
Views
17K
What is the electric flux through the rectangle
  • · Replies 2 ·
Replies
2
Views
22K
How Do You Calculate Moles and RMS Speed in Ideal Gas Problems?
  • · Replies 2 ·
Replies
2
Views
5K
Calculating Induced e.m.f and Power in a Perpendicular Coil
  • · Replies 4 ·
Replies
4
Views
4K
What single chip can be used to replace an AND gate in a circuit?
  • · Replies 8 ·
Replies
8
Views
4K
Instantaneous velocity animation
  • · Replies 6 ·
Replies
6
Views
10K
Test rocket acceleration physics problem
  • · Replies 3 ·
Replies
3
Views
9K
Kinematics bowling ball problem
  • · Replies 4 ·
Replies
4
Views
5K
What is the force at 18 degrees in a charged ball suspension problem?
  • · Replies 2 ·
Replies
2
Views
2K
How Do You Calculate the Uncertainty in Physical Measurements?
  • · Replies 11 ·
Replies
11
Views
9K
Solving the Salmon Jump Problem: How High Can it Go?
  • · Replies 2 ·
Replies
2
Views
2K
Point charge in an electric field
  • · Replies 11 ·
Replies
11
Views
8K
Solve Simple Velocity Problem: Understanding Integration and Momentum
  • · Replies 4 ·
Replies
4
Views
5K
Building a Tesla Coil for a School Science Fair: Tips and Advice
  • · Replies 6 ·
Replies
6
Views
12K
Simplifying Combinatorics: Proving nC(k-1) + nCk = (n+1)Ck for k>0
  • · Replies 2 ·
Replies
2
Views
3K
What does this experiment show?
  • · Replies 2 ·
Replies
2
Views
2K
What is the concept of Gauss' physical law?
  • · Replies 2 ·
Replies
2
Views
3K
How to Integrate \frac{\sqrt{x+1}}{x+3} dx with a Suitable Substitution?
  • · Replies 3 ·
Replies
3
Views
2K
Finding the Direction of a Plane's Emergency Landing Using Trigonometry
  • · Replies 24 ·
Replies
24
Views
11K
Find Resoance Frequency for Electric Motor Mass of 100 kg
  • · Replies 4 ·
Replies
4
Views
2K
Solving Hexane Condensation Problem: Flow Rate & Recovery
  • · Replies 2 ·
Replies
2
Views
3K
What is the magnitude of the velocity vector at time t = 8.3 s?
  • · Replies 3 ·
Replies
3
Views
2K
Solve Physics Problems: Oil Slick Diameter & Bowling Ball Speed
  • · Replies 3 ·
Replies
3
Views
5K
HELP 3 physics problems that i am stuck on
  • · Replies 2 ·
Replies
2
Views
6K
Electric Potential in a Region: Is it Zero or Nonzero?
  • · Replies 2 ·
Replies
2
Views
2K
An electron moving across capacitor
  • · Replies 8 ·
Replies
8
Views
30K
Tackling a Tough Physics Problem: Proton's Turning Point
  • · Replies 5 ·
Replies
5
Views
3K
Max Angle for Increasing Distance Projectile
  • · Replies 13 ·
Replies
13
Views
4K
Newton Law of Universal Gravitation
  • · Replies 15 ·
Replies
15
Views
10K
Calculus Problem Help: Solving f'(x) + ((1 -2x)/x^2)*y = 1
  • · Replies 5 ·
Replies
5
Views
2K
AP Calculus AB and BC: Appropriate Book?
  • · Replies 2 ·
Replies
2
Views
3K
Finding Distance Moved by Swapping Positions of Two Masses on Boat
  • · Replies 2 ·
Replies
2
Views
3K
Derivative with respect to time ?
  • · Replies 3 ·
Replies
3
Views
7K
Calculating Basketball Player's Hang Time
  • · Replies 5 ·
Replies
5
Views
4K
Tough calc projectile Q w/ incline. HELP
  • · Replies 5 ·
Replies
5
Views
3K
Physics I should be able to do
  • · Replies 12 ·
Replies
12
Views
3K
What are the confusing questions about structural I beams and cones?
  • · Replies 3 ·
Replies
3
Views
5K
Calculating Edith's Average Velocity in a Relay Race
  • · Replies 3 ·
Replies
3
Views
4K
Linear Speed of Object on Earth Surface at 62.0 Degrees Angle
  • · Replies 4 ·
Replies
4
Views
14K
How can you determine the net force of a bottle
  • · Replies 3 ·
Replies
3
Views
3K
Conducting sphere in a conducting spherical shell
  • · Replies 2 ·
Replies
2
Views
17K
Initial Speed of Ball Thrown Horizontally from 15.75m Height
  • · Replies 8 ·
Replies
8
Views
4K
Calculating Force in Parallel Conductors
  • · Replies 4 ·
Replies
4
Views
9K
Maths or physics Interception question
  • · Replies 2 ·
Replies
2
Views
5K
How Do You Calculate Electrostatic and Gravitational Forces in a Helium Ion?
  • · Replies 10 ·
Replies
10
Views
3K
Will expansion increases potential energy?
  • · Replies 2 ·
Replies
2
Views
2K
How Does Liquid Volume Affect Pressure and Flow Rate?
  • · Replies 2 ·
Replies
2
Views
5K
One dimensional motion magnitude
  • · Replies 6 ·
Replies
6
Views
4K
Vector Addition: V1, V2, and V3
  • · Replies 9 ·
Replies
9
Views
13K
How Do You Convert Air Weight from Newtons to Pounds?
  • · Replies 10 ·
Replies
10
Views
3K
How Do You Calculate Acceleration from Velocity?
  • · Replies 16 ·
Replies
16
Views
6K
Equal Pressure in Efflux: Understanding Fluid Dynamics in a Tank
  • · Replies 2 ·
Replies
2
Views
6K
Solving Box & Ramp Problem at 50° Angle
  • · Replies 10 ·
Replies
10
Views
3K
How to Calculate Moment of Inertia for Composite Objects?
  • · Replies 10 ·
Replies
10
Views
8K
Calculating Horizontal Distance of Ball Bearing with Mass 11.0 g
  • · Replies 4 ·
Replies
4
Views
5K
How do you design a bridge with these materials?
  • · Replies 3 ·
Replies
3
Views
4K
Steps to solve Projectile problem
  • · Replies 8 ·
Replies
8
Views
3K
How Far Should the Rescue Crew Fly to Reach the Plane?
  • · Replies 4 ·
Replies
4
Views
2K
Trouble with Notation in Vector Analysis
  • · Replies 4 ·
Replies
4
Views
2K
How Much Rubber Enters the Atmosphere from Tire Wear in the U.S. Annually?
  • · Replies 2 ·
Replies
2
Views
6K
Find Direction of Vector A+B: Easy Problem Solved
  • · Replies 8 ·
Replies
8
Views
17K
Relativistic Lagrangian -> Hamiltonian
  • · Replies 2 ·
Replies
2
Views
6K
Calculating Flowerpot Height | Freefall Problem Help
  • · Replies 2 ·
Replies
2
Views
10K
Dimensional analysis and frequency
  • · Replies 2 ·
Replies
2
Views
8K
Center of Gravity, Non-Uniform Bar
  • · Replies 2 ·
Replies
2
Views
7K
What is the difference between empirical and fundamental laws in physics?
  • · Replies 6 ·
Replies
6
Views
11K
How can I solve this free fall problem with missing variables?
  • · Replies 8 ·
Replies
8
Views
3K
Mars Climate Orbiter probe crashed into the surface of Mars
  • · Replies 2 ·
Replies
2
Views
16K
Investigatory project in physics
  • · Replies 27 ·
Replies
27
Views
9K
Baseball Projectile Motion Problem
  • · Replies 5 ·
Replies
5
Views
5K
Trouble Solving Relative Velocity in 2-D?
  • · Replies 5 ·
Replies
5
Views
3K
How Is Mass Calculated from Specific Heat?
  • · Replies 3 ·
Replies
3
Views
15K
Electric Potential, acceleration and velocity
  • · Replies 8 ·
Replies
8
Views
8K
Why Doesn't f(x + Δx) Approach f(x) as Δx Approaches 0 in Limits?
  • · Replies 4 ·
Replies
4
Views
4K
Projectile in Motion: horizontal
  • · Replies 3 ·
Replies
3
Views
7K
Electric Problem: Charges Drawn to Uncharged Metal Rod
  • · Replies 3 ·
Replies
3
Views
3K
Understanding Quadrants: Identifying Angle Position in Standard Form"
  • · Replies 6 ·
Replies
6
Views
23K
What is the speed of the new steamship?
  • · Replies 5 ·
Replies
5
Views
3K
Solving Acceleration Problems in a Sports Car Rally
  • · Replies 3 ·
Replies
3
Views
6K
Calculating the Density of Wood with Archimedes' Question
  • · Replies 5 ·
Replies
5
Views
12K
How much force did the rock exert on my head?
  • · Replies 3 ·
Replies
3
Views
4K
Convert octal to hex, w/out converting to Binary
  • · Replies 2 ·
Replies
2
Views
85K
Solve Physics Problem: Max Force & Height for Bone Fracture
  • · Replies 2 ·
Replies
2
Views
3K
Solve Electricity Equation: Physics Problem Help
  • · Replies 4 ·
Replies
4
Views
3K
How Do You Calculate Atomic Plane Spacing in a Cleaved Crystal?
  • · Replies 5 ·
Replies
5
Views
8K
Three quizzes from our exam(junior middle school grade 3)
  • · Replies 20 ·
Replies
20
Views
5K
Solving Drive Train Problem with Friction Coefficient of 0.3
  • · Replies 2 ·
Replies
2
Views
3K
What Factors Affect the Period of a Simple Pendulum?
  • · Replies 11 ·
Replies
11
Views
8K
Is it possible to 'disappear into thin air'?
  • · Replies 6 ·
Replies
6
Views
3K
How Do Nitrogen Molecules Separate When Changing From Liquid to Gas?
  • · Replies 7 ·
Replies
7
Views
2K
How Can I Finish Integrating a Natural Log Using Integration by Parts?
  • · Replies 6 ·
Replies
6
Views
8K
Calculate the mass of unknown nucleus
  • · Replies 3 ·
Replies
3
Views
11K
Properties of metals and nonmetals ?
  • · Replies 5 ·
Replies
5
Views
22K
Calculating Spherical Harmonics Cuadratic Dispersion
  • · Replies 2 ·
Replies
2
Views
3K
One question, should be a quickie
  • · Replies 2 ·
Replies
2
Views
1K
Why Is My Calculation of the Net Electric Field Incorrect?
  • · Replies 4 ·
Replies
4
Views
6K
What is the force between two point charges at a 45 degree angle?
  • · Replies 6 ·
Replies
6
Views
4K