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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Einstein views on gravitation,help
- shehri
- · Replies 3 ·
Velocity of Pole Vaulter: Solving for 10.95 m/s
- whiteruskii
- · Replies 5 ·
What are some possible uncertainties for mass measurements in a physics lab?
- L²Cc
- · Replies 4 ·
Is Acceleration Affected by Direction and Speed Changes?
- future_vet
- · Replies 5 ·
Calculating Time Constant Using Slope of ln(Temperature Dimensionless) vs. Time
- jrodmckis
- · Replies 2 ·
Speed v Velocity v Acceleration
- future_vet
- · Replies 2 ·
Check my 1D kinematics homework: 8 problems on velocity and acceleration
- future_vet
- · Replies 15 ·
Is Average Velocity Equal to Instantaneous Velocity for Constant Motion?
- future_vet
- · Replies 3 ·
Block sliding down 30° incline: checking velocity, normal force, and friction coefficient
- JasonAdams
- · Replies 5 ·
How do I evaluate c1c2 and 2b in this energy equation?
- Probie
- · Replies 4 ·
Is the Velocity of Water at the Top of a Glass Really Zero?
- Gyroscope
- · Replies 3 ·
Model rocket pushed off 40 m wall with engine thrust
- aisha001
- · Replies 2 ·
Conservative and non-conservative forces
- JasonAdams
- · Replies 7 ·
How Does Angular Velocity Change in a Swinging Rod with Masses?
- dkgojackets
- · Replies 1 ·
How can absolute humidity stay constant when cooling air isobarically?
- dobry_den
- · Replies 1 ·
Why does water flow at constant velocity between two reservoirs?
- Gyroscope
- · Replies 6 ·
Two tuning forks are producing sounds of wavelength
- merlos
- · Replies 3 ·
Why can't I use Compton shift with energy change formula?
- Khasimir
- · Replies 1 ·
Power consumed by heaters connected in series
- dmolson
- · Replies 1 ·
How to Solve Vertical Acceleration Problems
- Iceclover
- · Replies 2 ·
Electric Field due to Line of Charge
- cd80187
- · Replies 3 ·
How are standing waves formed in open and closed pipes?
- JasonAdams
- · Replies 1 ·
At what height does a ball's kinetic energy drop to half when thrown upward?
- FlashMXHelp
- · Replies 6 ·
Force, Electric Field, and Positive Particle
- Soaring Crane
- · Replies 1 ·
Find the Potential as a function of position
- prace
- · Replies 1 ·
Mass of solid water and gaseous water?
- tacloban87
- · Replies 1 ·
Proton-antiproton plasma collision wavelengths and annihilation
- kingwinner
- · Replies 14 ·
Need an idea for COURSEWORK research project
- blackcat
- · Replies 5 ·
Introductory Physics Learning Sources. Reliable?
- AznBoi
- · Replies 1 ·
Electric Field of a Charged Spherical shell
- SamTsui86
- · Replies 3 ·
Electric Field and total energy
- SamTsui86
- · Replies 3 ·
Current in a copper cylinder with given current density
- sbp_387
- · Replies 1 ·
Power Dissipation: Calculate Total Power
- suspenc3
- · Replies 1 ·
Find Thevenin Equiv. at a-b for Transistor Model
- VinnyCee
- · Replies 13 ·
Solving for the Third Force in a Simple Physics Problem with Constant Velocity
- Rasine
- · Replies 5 ·
Flash of a laser moves a mirror hanging on a rope
- caspar
- · Replies 10 ·
How Can Cos(x) Be Expressed Using Tan(x)?
- 06Sport
- · Replies 20 ·
Rotational motion of pulleys influenced by gravity. Not sure how to set up.
- shanest
- · Replies 3 ·
Electric Field of Earth problem
- stylez03
- · Replies 20 ·
Solving Force of Tension in Tightrope
- dcgirl16
- · Replies 1 ·
How Do You Calculate the Depth of an Object Using Sonar Echoes?
- akd28
- · Replies 2 ·
How Do You Calculate the Electric Field at the Midpoint of a Triangle's Side?
- map7s
- · Replies 1 ·
On error analysis of my practical
- Delzac
- · Replies 1 ·
Electrostatic/gravitational force q
- debwaldy
- · Replies 2 ·
Linear Expansion of Solid problem
- toddler
- · Replies 3 ·
Derivation of Moment of Inertia Equation for Solid Discs
- kelli105
- · Replies 2 ·
Rod in rotational motion. Not sure how to account for potential energy.
- shanest
- · Replies 2 ·
Angular speed and revolutions question.
- shanest
- · Replies 1 ·
How Do I Calculate Equivalent Resistance in Complex Circuits?
- Decan
- · Replies 2 ·
Finding velocity in terms of variables
- stinlin
- · Replies 1 ·
How to manipulate Snell's law to find the angle of refraction
- bflatt
- · Replies 2 ·
How Far Must a Proton Be from a Charge to Balance Its Weight?
- map7s
- · Replies 13 ·
Differentiating Lorentz factor with respect to time
- anantchowdhary
- · Replies 2 ·
Understanding the Process: Jump Starting a Car Battery in Series or Parallel"
- pivoxa15
- · Replies 32 ·
Finding Equilibrium Position for Third Charge in Line of Point Charges
- map7s
- · Replies 2 ·
Calculating Jet-Missile Catchup Time
- ramman1505
- · Replies 1 ·
A duck, some Newtons, and other fun stuff
- CelesteSeven
- · Replies 3 ·
Angular Momentum and velocity problem
- konichiwa2x
- · Replies 6 ·
Solving a Car's Acceleration in a Quarter Turn
- Northstar
- · Replies 2 ·
Kinematics: finding acceleration
- kapatter
- · Replies 2 ·
Work and Force on a block of mass
- chamonix
- · Replies 2 ·
Calculate absolute value of A+B
- tnhoots
- · Replies 14 ·
Maximum KE, Compton Scattering
- mrjeffy321
- · Replies 1 ·
Photoelectric effect with Rb: electrons from 500nm laser pulse
- gunner05
- · Replies 4 ·
Particle dropped into oil with acceleration a = g - kv
- Behroz
- · Replies 3 ·
Gravitational Energy Homework: How High Does it Go?
- fsm
- · Replies 9 ·
Gravity and Height: Find the Height of a Physics Problem
- NIZBIT
- · Replies 2 ·
What Is the Net Electric Field at the Midpoint Between Two Charged Particles?
- threewingedfury
- · Replies 4 ·
How Does Current Flow Affect Entropy in a Resistor and the Universe?
- Brewer
- · Replies 1 ·
Finding the Lagrangian for a Two-Mass System Connected by a String
- HalfManHalfAmazing
- · Replies 9 ·
Which way does a pivoted beam tilt when masses on it are released from a spring
- Parallel
- · Replies 12 ·
Calculating Vectors: Displacement, Radius & Skating Distance
- tnhoots
- · Replies 3 ·
Burglar pushing a safe with angled force on frictionless floor
- denverdoc
- · Replies 16 ·
Fundamental question unable to find answer
- cjf
- · Replies 4 ·
Hubble's constant, critical density, and length contraction thought experiments
- Olivia Grace
- · Replies 10 ·
Ideal gas law + Newton's 2nd law problem
- cy19861126
- · Replies 18 ·
How to Calculate the Speed of a Pendulum Using Tension and Weight
- daniellelok
- · Replies 13 ·
Converting Between Component and Magnitude-Angle Notations
- Llama77
- · Replies 3 ·
Solving for Coefficient of Kinetic Friction in Physics: Fnet=ma
- badatphysics
- · Replies 2 ·
What is the force exerted by the water on the bottom of the tank?
- kingwinner
- · Replies 13 ·
Are My Electric Potential Answers Correct for These 7 Cases?
- gazepdapi1
- · Replies 3 ·
What is the angle of a hanging dice during acceleration?
- bpw91284
- · Replies 3 ·
Significant Figures in Conversions: How to Apply the Rule in Physics?
- future_vet
- · Replies 4 ·
Parallel and perpendicular force
- inner08
- · Replies 14 ·
How Much Energy Is Needed to Convert 500 g of Water at 20°C to Steam at 100°C?
- hackz
- · Replies 1 ·
Particle motion in xy-plane passing through a wire hoop at r=20i m
- mst3kjunkie
- · Replies 4 ·
Safe Parking on Icy Days: Calculating Friction
- bpw91284
- · Replies 2 ·
Electric potential energy and point charges problem
- abeltyukov
- · Replies 1 ·
Dimensional Analysis of an object
- future_vet
- · Replies 2 ·
Mass-to-charge ratio of toner particles and carbon atom count
- physics.student
- · Replies 1 ·
How High is the Hedge in the Skier's Path?
- samdiah
- · Replies 23 ·
Exam Questions: Solving for Pressure, Force, and Density
- RaidersFan
- · Replies 1 ·
Force to push a 26-kg bobsled down a 4.1° incline to 70 km/h over 73 m
- bpw91284
- · Replies 1 ·
Calculate the acceleration of the elevator
- bpw91284
- · Replies 1 ·
Electric field from two charges at equilateral triangle corners
- symmet
- · Replies 2 ·
I Have an Exam Tomorrow and I so here are some question
- RaidersFan
- · Replies 1 ·
Movement of Charged Particles in a field
- Karma
- · Replies 3 ·
What is the Principle of Least Action?
- HalfManHalfAmazing
- · Replies 2 ·
How far does a 760kg car travel before stopping with 0.55s reaction time?
- rudebwoi
- · Replies 6 ·