Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Weighing Less in Skyscraper Lobby: What's Going On?
- pengie4life
- · Replies 3 ·
How much work to move a charge?
- uwmphysics
- · Replies 2 ·
How to Convert Oersted to Tesla?
- Amith2006
- · Replies 1 ·
Acceleration calculation is mocking me
- Asok_Green
- · Replies 3 ·
What is the current flowing through the aluminum rod on tilted conducting rails?
- StudentofPhysics
- · Replies 1 ·
Circuit that is both parallel and in series
- tigerguy
- · Replies 7 ·
Therefore, the most accurate answer would be B. Constant Phase Difference.
- Bradracer18
- · Replies 5 ·
Solving Momentum Impulse Problem: Mass .01kg Bullet & .99kg Block
- John O' Meara
- · Replies 2 ·
Kinetic energy and frames of refrence
- chuy
- · Replies 6 ·
Gravitation (just to check if calculation is right)
- Hollysmoke
- · Replies 6 ·
Solving Electric Potential Problem
- verd
- · Replies 7 ·
Electric Potential voltage and conservation of energy
- therealkellys
- · Replies 4 ·
Solving for h in Terms of r for Uniform Solid
- garyljc
- · Replies 5 ·
How Is the Average Force on a Bullet Calculated?
- highc
- · Replies 1 ·
What is the mass of the raindrop?
- JassC
- · Replies 7 ·
Determine the electric field that yields the desired result
- whoknows12345
- · Replies 3 ·
Alpha Particles: Time for Half Circle Motion
- whoknows12345
- · Replies 3 ·
Induced Electric Field and Faraday's law
- DarkWarrior
- · Replies 1 ·
Index of refraction, angular seperation
- Bradracer18
- · Replies 7 ·
Energy needed for satellite to escape Mars orbit
- Mateja
- · Replies 3 ·
Calculating Energy Delivered to a Battery using Ohm's Law
- tigerguy
- · Replies 1 ·
How does the maximum static friction affect the cylinder's motion?
- quasar987
- · Replies 12 ·
Understanding Water Ripple Behavior
- Kirl
- · Replies 2 ·
Skaters, Momentum, and Mass: How Does it Affect It?
- alwysnforevr002
- · Replies 3 ·
Question Regarding Work Done By Capacitor
- verd
- · Replies 9 ·
Is Net Work Done When a Car Travels at Constant Speed on a Flat Road?
- alwysnforevr002
- · Replies 8 ·
This is - number of charges trough
- something_about
- · Replies 1 ·
Finding velocity from electron energy in eV for velocity selector
- DFWDraco76
- · Replies 3 ·
How do you find the force to stop an object instantly?
- spanky
- · Replies 1 ·
How Do You Calculate the Speed of Vehicle B After Impact?
- mhb22079
- · Replies 4 ·
Blood splatter pattern from successive drops
- man_united_number_1
- · Replies 4 ·
Magnetic force on moving charge
- boris16
- · Replies 2 ·
Harmonic Motion and Springs Question
- Mattara
- · Replies 6 ·
Understanding Center of Mass: How Does it Change?
- uwmphysics
- · Replies 3 ·
Calculating Tension in an Elevator Cable During Upward Acceleration
- alwysnforevr002
- · Replies 2 ·
Photoelectric effect and energy levels in atoms
- al_201314
- · Replies 3 ·
Problem to find angular velocity
- abhijitlohiya
- · Replies 4 ·
When does the minute hand move away fastest from the hour hand?
- Delzac
- · Replies 28 ·
Calculating Velocity Vector after Ball Impact with a Surface
- scorp007
- · Replies 2 ·
Physics, projectile motion problem.
- gagga5
- · Replies 4 ·
Does a Ball Move Up or Down an Inclined Plane?
- alwysnforevr002
- · Replies 5 ·
Period, the Pendulum and Frequency
- alwysnforevr002
- · Replies 5 ·
Final exam: pendulum period, waves, sound, and calorimetry
- alwysnforevr002
- · Replies 3 ·
Rotating cylinder on table and rolling cylinder on incline
- vijay123
- · Replies 4 ·
How Does Friction Affect the Bobsled's Stopping Distance?
- taveuni
- · Replies 13 ·
Why Multiply by 10 in Dead Load Calculations?
- PhysicsApprentice
- · Replies 1 ·
Question on Piezoelectric effect
- Ukitake Jyuushirou
- · Replies 4 ·
Electric Potential alpha particles
- tigerguy
- · Replies 1 ·
Inward Acceleration for Ununiform Slope
- Mechanics
- · Replies 5 ·
What Happens to Voltage When a Dielectric is Inserted into a Charged Capacitor?
- whoknows12345
- · Replies 3 ·
Find the magnitude of the maximum magnetic force
- StudentofPhysics
- · Replies 10 ·
Tangential speed of moon around earth
- rkrk
- · Replies 5 ·
Range Of Half-lives Of Different Radioactive Elements
- shayshay
- · Replies 2 ·
Work done by friction on skateboard down quarter-circle ramp
- mms05
- · Replies 11 ·
Collision and Impulse, Linear Momentum
- kappcity06
- · Replies 16 ·
How Does Newton's Third Law Explain Acceleration in Cars?
- cks
- · Replies 4 ·
Difference between centre of mass and centre of gravity
- garyljc
- · Replies 5 ·
Electricity Sparks: Finding the Voltage Difference for a 0.2 cm Jump
- whoknows12345
- · Replies 3 ·
Average emf is it same as induced emf?
- skull42484
- · Replies 8 ·
Does P=RI² hold for pulsed currents?
- axawire
- · Replies 6 ·
Kinematics (Vectors, fairly easy stuff)
- Jehuty
- · Replies 10 ·
Solving Power Cable Question - Part (b)
- webren
- · Replies 2 ·
Machine Converts Chemical Energy To Electrical Energy?
- shayshay
- · Replies 2 ·
How do I calculate the efficiency of a propeller using acceleration and voltage?
- Kris2456
- · Replies 2 ·
Is conservation of energy correct?
- mlazos
- · Replies 2 ·
Well diameter and height for a Meriam manometer design
- wxrocks
- · Replies 3 ·
Solving Circuits with Kirchoff's Laws
- meczs
- · Replies 3 ·
How Do You Calculate the deBroglie Wavelength of a Relativistic Electron?
- Chocobo7
- · Replies 3 ·
How many joules of electric energy are there in 1 kilowatt-hour?
- anzgurl
- · Replies 1 ·
How can I solve this tricky problem involving work and kinetic energy?
- kappcity06
- · Replies 22 ·
Calculating Force: Tractor on Trailers on Incline
- taveuni
- · Replies 5 ·
Tension (related to Fe) Question and Gauss Question
- mudkip
- · Replies 1 ·
Circuits Wired Partially in Series and Partially in Parallel
- StudentofPhysics
- · Replies 7 ·
Calculating Initial Velocity & Angle of Football Kicked on Horizontal Plane
- brunch43
- · Replies 2 ·
What is the Average Frictional Force Acting on a Sliding Bear?
- kappcity06
- · Replies 12 ·
Finding the Final Velocity of a Box Sliding Across a Rough Surface
- taveuni
- · Replies 4 ·
Understanding Angular Acceleration and Speed in a Human Centrifuge
- torment
- · Replies 4 ·
Pressure Difference in a Drinking Straw
- Zanathyne
- · Replies 3 ·
Conservation of Mechanical Energy in truck
- kappcity06
- · Replies 3 ·
Solve Circular Motion Help - Pendulum Bob Mass, Rod Length, Speed & Tension
- garyljc
- · Replies 13 ·
Pressure Response Time for Two-Piston Hydraulic System with Vacuum Space in Tube
- interceptors2006
- · Replies 2 ·
Inertail versus gravitational mass
- johnxxx
- · Replies 1 ·
Force of atoms in different molecules?
- Ukitake Jyuushirou
- · Replies 12 ·
Where Does the Net Electric Field Equal Zero Along the X-axis?
- tigerguy
- · Replies 2 ·
Electric field from two parallel plates with opposite charges using Gauss's law
- Saketh
- · Replies 1 ·
Momentum Problem: Solving A and B's Post-Collision Direction and Speed
- Hollysmoke
- · Replies 2 ·
Why does my wave equation appear to move backwards?
- pivoxa15
- · Replies 3 ·
Forces with direction and magnitude
- dopey9
- · Replies 7 ·
Question on Electrical Potential Energy
- tigerguy
- · Replies 7 ·
Finding F1 and F2 using the principle of moments
- Cain
- · Replies 2 ·
How Does an Alpha Particle Remain Undeflected in a Magnetic Field?
- endeavor
- · Replies 6 ·
Entropy and Thermal Equilibrium: Solving the Hotter-Colder Object Conundrum
- zeithief
- · Replies 5 ·
Identifying Forces and Directions in Torque and Equilibrium
- Intr3pid
- · Replies 5 ·
Calculating Dose for 3 Hours of 0.3 mSv Beta Radiation Exposure
- Ukitake Jyuushirou
- · Replies 5 ·
Potential/conservation of energy
- kappcity06
- · Replies 38 ·
Calculating Resistance(not at RT) using the Resistivity Formula
- Jozers
- · Replies 2 ·
Finding tension and acceleration with three connected masses
- Tensaiga
- · Replies 3 ·
Optics light through water question
- Ukitake Jyuushirou
- · Replies 6 ·
Static equilibrium and torque of string and pulley
- jhrnndz1
- · Replies 10 ·
Finding the equilibriant force from two given forces
- Hollysmoke
- · Replies 11 ·