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.
Electromagnetic Induction exercise, is something wrong with these answers?
  • · Replies 11 ·
Replies
11
Views
2K
Gravity problem: determining the period of a satellite in Earth orbit
  • · Replies 10 ·
Replies
10
Views
3K
Kinematics of deformation (Continuum mechanics)
  • · Replies 5 ·
Replies
5
Views
1K
Help with two problems relating to universal gravitation
  • · Replies 5 ·
Replies
5
Views
2K
How Do You Determine Temperature in Series Carnot Engines by Equating Work Done?
  • · Replies 5 ·
Replies
5
Views
2K
Circular Motion/Energy: Find the position of the rings when tension = 0
  • · Replies 5 ·
Replies
5
Views
2K
Two Speaker Destructive Interference
  • · Replies 1 ·
Replies
1
Views
3K
Closest point to a set with l1 norm
  • · Replies 3 ·
Replies
3
Views
1K
Obtaining work from two bodies by a heat engine
  • · Replies 2 ·
Replies
2
Views
3K
What Are Rotational Angular Values in Free Body Diagrams?
  • · Replies 1 ·
Replies
1
Views
809
Physics position problem (Block on a flatbed)
  • · Replies 5 ·
Replies
5
Views
1K
Poynting vector -- Calculate the EM power transmitted down a coax cable
  • · Replies 4 ·
Replies
4
Views
2K
How Is Maximum Spring Compression Calculated in Physics Problems?
  • · Replies 2 ·
Replies
2
Views
2K
Rotation and spring force exercise
  • · Replies 16 ·
Replies
16
Views
2K
Inserting thick lenses into a thin lens system and deducing values
  • · Replies 1 ·
Replies
1
Views
2K
Work done BY the gas in a cyclic thermodynamic process
  • · Replies 2 ·
Replies
2
Views
2K
Spring stiffness and Heat Capacity (Equipartition of energy)
  • · Replies 4 ·
Replies
4
Views
2K
Calculating the Second Moment of Area for Floating Bodies
  • · Replies 2 ·
Replies
2
Views
2K
Isothermal process involving changes in Volume and Pressure
  • · Replies 4 ·
Replies
4
Views
1K
Pressure of an ideal gas -- A Level Multiple Choice Problem
  • · Replies 2 ·
Replies
2
Views
5K
Thermodynamics problem involving engine efficiency
  • · Replies 20 ·
Replies
20
Views
3K
Understanding Waves for Solving Problems
  • · Replies 5 ·
Replies
5
Views
1K
G-force experienced by a jumper, using a DE
  • · Replies 15 ·
Replies
15
Views
2K
Calculating total charge when the electric field is given
  • · Replies 7 ·
Replies
7
Views
2K
Damped Simple Harmonic Motion: Finding Amplitude Reduction in Carbon Dioxide
  • · Replies 3 ·
Replies
3
Views
3K
Correct statement regarding the graph of binding energy per nucleon
  • · Replies 11 ·
Replies
11
Views
2K
Inclined Planes, finding time from acceleration at an angle
  • · Replies 9 ·
Replies
9
Views
3K
Getting Force with distance, mass and time
  • · Replies 1 ·
Replies
1
Views
1K
Not sure why my method doesn't work: Springs, Potential Energy and Work
  • · Replies 5 ·
Replies
5
Views
2K
Conservation of Momentum involving Vf, elastic collisions
  • · Replies 6 ·
Replies
6
Views
2K
Inclined Planes, finding final velocity
  • · Replies 6 ·
Replies
6
Views
2K
Correct statement regarding nuclear reactions
  • · Replies 15 ·
Replies
15
Views
2K
Finding the Power Produced by a Hydroelectric Generator
  • · Replies 2 ·
Replies
2
Views
1K
Force between two perpendicular wires
  • · Replies 3 ·
Replies
3
Views
2K
Closest approach of alpha particle - two separate methods
  • · Replies 4 ·
Replies
4
Views
2K
Calculate the moment of inertia of this body
  • · Replies 4 ·
Replies
4
Views
2K
Force of the Ladder on a Wall Torque
  • · Replies 5 ·
Replies
5
Views
3K
Buoyancy and the Archimedes Principle
  • · Replies 6 ·
Replies
6
Views
2K
Working with Newton's Third Law and friction
  • · Replies 2 ·
Replies
2
Views
1K
Determine the mass of the planet using Newton’s Law of Universal Gravitation
  • · Replies 2 ·
Replies
2
Views
3K
To find the work done in extending a spring
  • · Replies 3 ·
Replies
3
Views
1K
Homework Help: Thermal Energy Question
  • · Replies 2 ·
Replies
2
Views
1K
A slab? Infinite area? Electric field? Help please
  • · Replies 20 ·
Replies
20
Views
6K
Electrostatic potential due to a dipole
  • · Replies 7 ·
Replies
7
Views
3K
How Long Does a Box Stay In Contact With a Spring as it Bounces Off of it?
  • · Replies 23 ·
Replies
23
Views
3K
Oscillations: The position is modeled as x(t)=Acos(ωt+ϕ)
  • · Replies 4 ·
Replies
4
Views
2K
Newton's third law problem/kinematics (Airboat problem/no friction)
  • · Replies 3 ·
Replies
3
Views
4K
Conservation of momentum in a bullet-block-spring system
  • · Replies 6 ·
Replies
6
Views
3K
Why Potential Energy cannot be included twice?
  • · Replies 4 ·
Replies
4
Views
1K
The Total Energy of the Hydrogen Atom's Electron
  • · Replies 2 ·
Replies
2
Views
2K
Power and Mass Question -- A helicopter accelerating and ascending
  • · Replies 6 ·
Replies
6
Views
1K
The efficiency of a heat engine
  • · Replies 4 ·
Replies
4
Views
2K
Amplitude of oscillation for SHM
  • · Replies 4 ·
Replies
4
Views
1K
Simple Canon Question (Conservation Of Momentum): Frame of Reference
  • · Replies 5 ·
Replies
5
Views
3K
Solving the Platform and Object Kinetic Energy Equation
  • · Replies 8 ·
Replies
8
Views
2K
Finding the magnetic field at a point P
  • · Replies 9 ·
Replies
9
Views
8K
Please can I get some help finding the function of motion
  • · Replies 31 ·
2
Replies
31
Views
2K
Energy problem with 2 objects (a mass flying vertically off of a ramp)
  • · Replies 7 ·
Replies
7
Views
2K
How do I calculate the time and distance for a pendulum projectile problem?
  • · Replies 1 ·
Replies
1
Views
1K
Wire rotating inside a magnetic field
  • · Replies 8 ·
Replies
8
Views
2K
E field calculation for q sphere
  • · Replies 4 ·
Replies
4
Views
1K
Finding the Solution: Solving for x in a Polarization of Light Equation
  • · Replies 17 ·
Replies
17
Views
3K
Finding the magnitude of the hydrostatic force per unit of circumference
  • · Replies 5 ·
Replies
5
Views
2K
Is a Rate of 100K/s an Intuitively Offensive Way to Measure Temperature Change?
  • · Replies 9 ·
Replies
9
Views
1K
Solving for the Damping Constant
  • · Replies 11 ·
Replies
11
Views
3K
Time period of oscillation of charge in front of infinite charged plane
  • · Replies 3 ·
Replies
3
Views
2K
Electron moving inside a region of homogeneous electric field
  • · Replies 3 ·
Replies
3
Views
1K
Spring pendulum with and without weight
  • · Replies 1 ·
Replies
1
Views
1K
Conservation of Momentum: Elastic Collision of Two Masses
  • · Replies 1 ·
Replies
1
Views
1K
Horizontal Circular Motion With Lagrange
  • · Replies 5 ·
Replies
5
Views
2K
Calculate the amount of water vapor
  • · Replies 3 ·
Replies
3
Views
2K
Working out the rate of heat loss from a radiator
  • · Replies 14 ·
Replies
14
Views
2K
Finding latent heat of vaporisation
  • · Replies 3 ·
Replies
3
Views
1K
Velocity of an object on an inclined plane
  • · Replies 7 ·
Replies
7
Views
2K
Particle in a well, can someone explain how this step works
  • · Replies 1 ·
Replies
1
Views
1K
Finite quantum well, multiple choice question
  • · Replies 3 ·
Replies
3
Views
2K
Calculating Escape Velocity for Earth: Where Am I Going Wrong?
  • · Replies 2 ·
Replies
2
Views
2K
Find the refractive index for the lens and find the image distance
  • · Replies 3 ·
Replies
3
Views
2K
Linear and angular momentum problem: Ball hitting a rod
  • · Replies 62 ·
3
Replies
62
Views
14K
What Is the Best Way to Determine Electricity Prices on an Isolated Island?
  • · Replies 9 ·
Replies
9
Views
1K
What is the frictional force on a wheel-disk system?
  • · Replies 5 ·
Replies
5
Views
1K
Tension and frequency of a vibrating violin string
  • · Replies 26 ·
Replies
26
Views
8K
Is My Quantum Well Probability Calculation Correct?
  • · Replies 9 ·
Replies
9
Views
2K
Oscillations of a Balanced Object
  • · Replies 1 ·
Replies
1
Views
2K
A kid slips off the top of the hill -- find the escape angle
  • · Replies 1 ·
Replies
1
Views
1K
Can phase shift keying delay a wave further?
  • · Replies 5 ·
Replies
5
Views
1K
Calculating the uncertainty in a Geiger counter
  • · Replies 16 ·
Replies
16
Views
6K
What is the minimum velocity needed?
  • · Replies 20 ·
Replies
20
Views
2K
Astrophysics/Astronomy Extended Essay -- Trying to figure out a research topic
  • · Replies 6 ·
Replies
6
Views
5K
What is the Formula for Calculating Enthalpic Capacity in Steam Heat Transfer?
  • · Replies 14 ·
Replies
14
Views
2K
Troubleshooting Wave Velocity on a Piano Wire
  • · Replies 1 ·
Replies
1
Views
1K
Dropping a package with a parachute from a moving plane
  • · Replies 13 ·
Replies
13
Views
3K
Further Applications of Newton's Law : Friction, Drag, and Elasticity
  • · Replies 3 ·
Replies
3
Views
1K
Is my solution for the Bungee Tension Problem correct?
  • · Replies 5 ·
Replies
5
Views
2K
How to use Weibull distribution when it comes to wind?
  • · Replies 2 ·
Replies
2
Views
1K
Constant Acceleration -- Equation for Vavge
  • · Replies 5 ·
Replies
5
Views
1K
Best truss bridge design for this school project?
  • · Replies 5 ·
Replies
5
Views
5K
F=ma experiment: Trolley being pulled by a falling weight
  • · Replies 2 ·
Replies
2
Views
2K
How can I increase the wavelength of light photons?
  • · Replies 4 ·
Replies
4
Views
1K
Fireworks Sound level at difference distances
  • · Replies 1 ·
Replies
1
Views
3K