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 True Statements About Constant Velocity and Kinetic Energy Ratios?
  • · Replies 11 ·
Replies
11
Views
4K
UFO - time taken to travel to moon
  • · Replies 4 ·
Replies
4
Views
3K
Minimum Time Delay for Communicating with Astronaut on Moon: 2.5s
  • · Replies 2 ·
Replies
2
Views
5K
Calculating Forces in a Moving Lift
  • · Replies 6 ·
Replies
6
Views
2K
Forces and defining coordinate systems
  • · Replies 1 ·
Replies
1
Views
2K
How do you find the center of mass for an object with multiple parts?
  • · Replies 6 ·
Replies
6
Views
3K
Coefficient of Friction of a KE-Work-PE situation
  • · Replies 13 ·
Replies
13
Views
4K
Formula for calculating distance traveled with uniform acceleration
  • · Replies 7 ·
Replies
7
Views
16K
Finding the phase angle for simple harmonic motion
  • · Replies 7 ·
Replies
7
Views
7K
Getting the electric potential function using the electric field components
  • · Replies 5 ·
Replies
5
Views
2K
Block Sliding Down Circular Ramp (w/ Friction)
  • · Replies 6 ·
Replies
6
Views
7K
Qestion about pressure transducer
  • · Replies 5 ·
Replies
5
Views
2K
Can someone me understand this lesson? I tried, but I just can't get it
  • · Replies 2 ·
Replies
2
Views
2K
Simple Harmonic Motion question.
  • · Replies 11 ·
Replies
11
Views
7K
Solving Geometry Problem: Disparity in Terms of a, D, d, e, & f
  • · Replies 3 ·
Replies
3
Views
2K
Compute Solid Angle of Cone: θ | Hi Everyone
  • · Replies 2 ·
Replies
2
Views
3K
Moment of Inertia of a non-uniform density paraboloid
  • · Replies 8 ·
Replies
8
Views
7K
Potential Energy of a spring problem
  • · Replies 1 ·
Replies
1
Views
4K
Physics answers (i have a test tmrw and there is no key to this) thanks
  • · Replies 1 ·
Replies
1
Views
2K
Sphere Charge Hanging on Thread (Electric Field Question)
  • · Replies 5 ·
Replies
5
Views
10K
Calculating Electrostatic Repulsion in Nuclear Fission
  • · Replies 1 ·
Replies
1
Views
2K
Rolling with no slipping problem
  • · Replies 2 ·
Replies
2
Views
9K
Direct current in electric motors?
  • · Replies 3 ·
Replies
3
Views
2K
What is the velocity of the block when it reaches the equilibrium position?
  • · Replies 5 ·
Replies
5
Views
2K
Very simple Accelerated motions
  • · Replies 3 ·
Replies
3
Views
1K
Please can you help me to resolve this vector force?
  • · Replies 6 ·
Replies
6
Views
4K
How Does Converting eV to Joules Work?
  • · Replies 2 ·
Replies
2
Views
4K
Exam question, simple physics calculus.
  • · Replies 7 ·
Replies
7
Views
2K
Dim. Analysis: Water Pressure on Europa
  • · Replies 4 ·
Replies
4
Views
2K
Solving Simple Relativity: Time, Speed Reduction & More
  • · Replies 4 ·
Replies
4
Views
2K
Third resonance length frequency(which formula do i use?)
  • · Replies 3 ·
Replies
3
Views
10K
Plotting electric field lines of a dipole
  • · Replies 4 ·
Replies
4
Views
8K
Thermistor and Op-Amp Circuit Design
  • · Replies 9 ·
Replies
9
Views
7K
Linear velocity of a spring with mass
  • · Replies 1 ·
Replies
1
Views
3K
How Do You Calculate UAB in a Wheatstone Bridge with Changing Resistance Values?
  • · Replies 2 ·
Replies
2
Views
2K
Experiment testing Rotational Kinetic Energy with a hollow cylinder
  • · Replies 17 ·
Replies
17
Views
6K
Horizontal Plane With Friction And Incline Plane With no Friction
  • · Replies 10 ·
Replies
10
Views
3K
Moment of inertia of triangle rotated about y axis
  • · Replies 4 ·
Replies
4
Views
7K
How Does Mass Influence Friction in Physics Problems?
  • · Replies 15 ·
Replies
15
Views
4K
Help with Work and Energy - File Attached
  • · Replies 6 ·
Replies
6
Views
2K
Total power developed and kinetic energy
  • · Replies 2 ·
Replies
2
Views
2K
Force of attraction between proton and electron
  • · Replies 5 ·
Replies
5
Views
24K
How to produce a standing wave question
  • · Replies 4 ·
Replies
4
Views
2K
Torque, equilibrium and calculating angle of forces
  • · Replies 1 ·
Replies
1
Views
4K
Understanding Force Relationships: F_A & F_B
  • · Replies 7 ·
Replies
7
Views
5K
Magnetic flux through a coil. Field generated by a straight conductor.
  • · Replies 1 ·
Replies
1
Views
3K
Kicked ball hits bird and falls
  • · Replies 12 ·
Replies
12
Views
3K
Free Oscillations of materials
  • · Replies 13 ·
Replies
13
Views
3K
Eqn for SHM, sin function, so why cos?
  • · Replies 3 ·
Replies
3
Views
3K
Power and rate of potential energy
  • · Replies 4 ·
Replies
4
Views
2K
Homework Problem related to acceleration due to gravity and force.
  • · Replies 1 ·
Replies
1
Views
4K
Steel Building Height Variation in Summer vs Winter: Thermal Physics Analysis
  • · Replies 1 ·
Replies
1
Views
2K
Optics(Converging lens and Diverging lens)
  • · Replies 3 ·
Replies
3
Views
4K
How Do You Calculate the Buoyant Force of a Helium Balloon?
  • · Replies 1 ·
Replies
1
Views
9K
Solving Physics Problem: Why Fn = mgsinΘ?
  • · Replies 3 ·
Replies
3
Views
5K
Question regarding gravitational waves
  • · Replies 5 ·
Replies
5
Views
2K
Two children stand on the edge of a merry-go-round
  • · Replies 8 ·
Replies
8
Views
7K
Where is better to put the tube for drinking water better?
  • · Replies 7 ·
Replies
7
Views
2K
Uncertainty and significant figures
  • · Replies 14 ·
Replies
14
Views
11K
Does Heating a Pop Can Increase Internal Pressure?
  • · Replies 2 ·
Replies
2
Views
2K
Pulling my hair out over this one
  • · Replies 10 ·
Replies
10
Views
4K
Find max height of inclined plane
  • · Replies 1 ·
Replies
1
Views
12K
Building a Sand-Travelling Car that Fires a Projectile
  • · Replies 2 ·
Replies
2
Views
2K
Two Balls - One Suspended, One Stationary
  • · Replies 8 ·
Replies
8
Views
3K
How Do You Calculate Projectile Motion from a Cliff?
  • · Replies 1 ·
Replies
1
Views
2K
Which Equation Determines Angular Displacement for a Rotating Pulley Wheel?
  • · Replies 1 ·
Replies
1
Views
2K
How Long Does a Hohmann Transfer from Earth to Vesta Take?
  • · Replies 1 ·
Replies
1
Views
2K
Movement caused by wind (changing force)
  • · Replies 5 ·
Replies
5
Views
2K
Kinetic Energy and Parabolic Motion
  • · Replies 3 ·
Replies
3
Views
4K
What is the meaning of m3 kg-1 s-2 in gravitational constant
  • · Replies 2 ·
Replies
2
Views
10K
Find the normal force on an inclined plane.
  • · Replies 3 ·
Replies
3
Views
5K
Simple Torque Problem: Finding Torque on a Tree from Tension in a Rope
  • · Replies 9 ·
Replies
9
Views
11K
Electromagnetism/Permeability Question
  • · Replies 1 ·
Replies
1
Views
2K
What Does the Area Under a Maxwell-Boltzmann Distribution Curve Indicate?
  • · Replies 3 ·
Replies
3
Views
5K
A 50-kg object was dropped from a height of 2 meters from water level
  • · Replies 1 ·
Replies
1
Views
2K
Solving for Acceleration & Tension: Newton's Laws
  • · Replies 4 ·
Replies
4
Views
3K
If wind blows at 39 m/s over a house,
  • · Replies 10 ·
Replies
10
Views
13K
Static equlibrium with friction
  • · Replies 1 ·
Replies
1
Views
2K
Answer Right? Calculate Satellite Slow-down, Find Relativity Speed-up
  • · Replies 1 ·
Replies
1
Views
2K
Field Intensity of Flat Capacitor
  • · Replies 1 ·
Replies
1
Views
3K
Some Easy Questions About Electricity
  • · Replies 6 ·
Replies
6
Views
3K
How Does a Deuteron Splitting in a Cyclotron Affect Particle Trajectories?
  • · Replies 1 ·
Replies
1
Views
2K
What Is the Magnitude of the Impulse Delivered to the Football?
  • · Replies 1 ·
Replies
1
Views
3K
Static Equilibrium and Torque Homework Question
  • · Replies 1 ·
Replies
1
Views
11K
Calculating Speed & Acceleration of Banelings
  • · Replies 2 ·
Replies
2
Views
2K
What is the net force acting on a submerged juniper wood plank?
  • · Replies 1 ·
Replies
1
Views
3K
What is the displacement after traveling on two different compass headings?
  • · Replies 8 ·
Replies
8
Views
3K
Quick and easy question about what symbols to use (I already solved the problem)
  • · Replies 1 ·
Replies
1
Views
3K
I with a problem from yale physics open courseware?
  • · Replies 5 ·
Replies
5
Views
4K
Circular Motion (finding speed)
  • · Replies 2 ·
Replies
2
Views
4K
Is My Satellite Gravitational Forces Homework Correct?
  • · Replies 2 ·
Replies
2
Views
9K
Using Bernoulli to find volume of water to pass through hole
  • · Replies 3 ·
Replies
3
Views
5K
Thevenin equivalanet and max power question
  • · Replies 2 ·
Replies
2
Views
1K
Calculating Resultant Vector from Angle & Vectors
  • · Replies 1 ·
Replies
1
Views
2K
Calculating Tension and Friction in a Pulley System
  • · Replies 1 ·
Replies
1
Views
2K
Meteor Accelerating towards the Earth
  • · Replies 1 ·
Replies
1
Views
8K
Apparent Weight in a Spinning Space Station
  • · Replies 1 ·
Replies
1
Views
8K
How to arrive at answer for integration question
  • · Replies 3 ·
Replies
3
Views
2K
Fluid pressure (verification please)
  • · Replies 10 ·
Replies
10
Views
2K
Universal Gravitation Question (solving for distance)
  • · Replies 4 ·
Replies
4
Views
4K