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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What is the acceleration of a particle orbiting around a nucleus?
- Sariaht
- · Replies 5 ·
Understanding Faraday's Law of Induction
- discoverer02
- · Replies 4 ·
Calculate the magnitude of this torque
- BillyCheung
- · Replies 2 ·
Average velocity of an electron orbiting around the nucleus?
- Sariaht
- · Replies 2 ·
How do I make a vibration sensor light circuit for deaf tap dancers?
- dancemadz
- · Replies 2 ·
How Do You Calculate Hydrostatic Force and Work in Fluid Mechanics Problems?
- gigi9
- · Replies 2 ·
Calculating Velocity and Energy of a Spring Mass System
- bard
- · Replies 5 ·
What is the force between the two point charges?
- marshall4
- · Replies 4 ·
Angular Acceleration of a washer
- ryan838
- · Replies 4 ·
Which Metal Sample Shows Greater Uncertainty in Specific Heat Calculation?
- tucky
- · Replies 3 ·
Why Does a Rubber Ball Stop Bouncing?
- ruby_duby
- · Replies 2 ·
Finding initial speed in inelastic collision with friction
- formulajoe
- · Replies 2 ·
Two Mechanics Questions 83, 84
- yxgao
- · Replies 2 ·
Voltage Amplifier 72 on GRE: Negative Feedback Effects
- yxgao
- · Replies 2 ·
What is the Radius of a Black Hole If Earth Were Compressed?
- yxgao
- · Replies 2 ·
Solving Newton Law Problem: Find Acceleration & Tension
- moooocow
- · Replies 5 ·
Calculating Final Velocity of Falling Balls
- Crackle
- · Replies 5 ·
Why do some objects float and others sink?
- Skipperchrldr
- · Replies 2 ·
What is the Mass of the Planet?
- ConfusedStudent
- · Replies 9 ·
Building a Spring Launcher: Attaching the Spring
- thegame
- · Replies 2 ·
How can you store energy in a book?
- ruby_duby
- · Replies 2 ·
Is a 120 Watt or 60 Watt bulb brighter?
- sk8rlindz
- · Replies 3 ·
Solving the Verticle Wave Problem: Time to Reach Equilibrium for a 0.2 kg Load
- timtng
- · Replies 2 ·
Finding the Magnitude of Force without Time: A Rocket Pack Dilemma
- amcoolio
- · Replies 2 ·
Can I post True or False and multiple choice questions without revealing answers?
- Security
- · Replies 2 ·
Apply Mean Value Theorem to Show arctan x - x = 0 at x = 0
- sonya
- · Replies 4 ·
Calculating Resultants of Parallel/Anti-Parallel Vectors
- EK03
- · Replies 9 ·
Scale reading when copper is suspended in water by thread
- cathliccat
- · Replies 4 ·
How Do Absolute Pressure and Gauge Pressure Differ?
- franz32
- · Replies 2 ·
Solving Vector Problem B: Find Magnitude & Direction
- cowgiljl
- · Replies 3 ·
Solving for Tension in a Traffic Light: Fx and Fy Equations
- cowgiljl
- · Replies 2 ·
Is angular momentum of the planet conserved?
- Astronomer107
- · Replies 1 ·
What is the Coefficient of Restitution in a Block Collision with a Wall?
- SuperGeek
- · Replies 2 ·
What is the Resultant Distance and Direction of a Person's Vector Walk?
- cowgiljl
- · Replies 3 ·
Recursion formula for integrals of tan^n(θ)
- BLUE_CHIP
- · Replies 10 ·
Double slit experiment distance
- ksn
- · Replies 3 ·
Violation of Conservation of Momentum Law in Collisions?
- sk8rlindz
- · Replies 2 ·
Centripetal Acceleration lab graph
- sarujin
- · Replies 2 ·
Lowest Ionization Potential: Atom e (55 133 Cs)
- yxgao
- · Replies 2 ·
Find the Final Voltage across a 2.0-microfarad Capacitor
- yxgao
- · Replies 2 ·
Buoyancy lab for my physics class
- Skipperchrldr
- · Replies 4 ·
What minimum speed v is required to keep the ball moving in a circle?
- pringless
- · Replies 10 ·
What Causes Friction Problems?
- curlydafatboy
- · Replies 2 ·
Where Should the Support String Be Placed for Balance in a Baby Crib Mobile?
- zeronem
- · Replies 5 ·
Physics: Springs and Blocks - Mu(k), Compression, Ramp Height, Speed
- Cyto
- · Replies 4 ·
How Does Light Behave at the Critical Angle in an Optical Fiber?
- Nb
- · Replies 2 ·
How do free vortices work and what equations describe circulation and vorticity?
- powerball
- · Replies 6 ·
How Long Until a Bowling Ball Starts Rolling Without Slipping?
- rdn98
- · Replies 8 ·
Learning equilibrium problems after missing the lecture
- Earth_kissed
- · Replies 4 ·
Calculating Momentum in Explosions
- mindhater
- · Replies 5 ·
Factors affecting catapult range of a noodle pot
- MightyMan
- · Replies 4 ·
Electromagnetic Diagram of 4 Antenna Array - Philip's Question
- philipc
- · Replies 4 ·
Automobile speedometer physics test problem
- acoult
- · Replies 8 ·
How Fast Will the Mass Be Just Before It Hits the Ground?
- benp
- · Replies 2 ·
How Do You Calculate Mass from Weight on Different Planets?
- badboyben03
- · Replies 3 ·
What is the force exerted on the hand by the blocks?
- badboyben03
- · Replies 3 ·
Convservation of momentum if one object rolls.
- powerball
- · Replies 2 ·
Understanding Water Flow Dynamics in a Bernoulli's Pipe
- tucky
- · Replies 2 ·
What Is the Phase Constant in Simple Harmonic Motion?
- edge
- · Replies 2 ·
If amplitude of a sound wave is quadrupled, by what factor does intensity increase?
- PhysChelle
- · Replies 2 ·
Will a refrigerator cool down a closed kitchen on a hot day?
- Security
- · Replies 6 ·
Projectile motion using energy method
- pringless
- · Replies 2 ·
Acceleration of 2 kg and 4 kg blocks with 0.5 kg pulley on friction
- Juntao
- · Replies 4 ·
Tangent Slope at Point y=\cosh x = 1
- bard
- · Replies 2 ·
Determining chemical formulas for calcium carbonate and copper hydroxide
- gotzmlk
- · Replies 6 ·
Acceleration and tension in a pulley system with 3.2 kg and 1.2 kg masses
- physicsnub
- · Replies 16 ·
2 Super Hard Rotational Motion Problems
- ScoutFCM
- · Replies 2 ·
How far does a person slide at 3 m/s with friction coefficient 0.5?
- marshall4
- · Replies 11 ·
Exam review: kinematics of projectiles, velocity, and circular motion
- Security
- · Replies 10 ·
Calculate Heat Value: Chemistry Problem Solved
- chemical
- · Replies 2 ·
Potter's Wheel Angular Acceleration Calculation
- mustang
- · Replies 3 ·
How High Can You Jump on the Moon and Sun Compared to Earth?
- gigi9
- · Replies 1 ·
How Do You Calculate the Coefficient of Kinetic Friction on an Inclined Plane?
- athanasia
- · Replies 2 ·
Simple Determination of Initial Velocity of a Pojectile
- Chrishaum
- · Replies 2 ·
Calculate Sin/Tan/Cos of Theta - Pendulum Properties
- BluE
- · Replies 2 ·
What is its speed after traveling 1.00 m on the rough surface?
- cc21392001
- · Replies 5 ·
Calculating Mutual Inductance with Neumann Integral Problem
- ollitsacj
- · Replies 3 ·
Why does an electron behave like a vibrating string?
- suzy
- · Replies 1 ·
Calculating Stopping Distance on 10° Slope w/ Forces of Friction
- Chapin
- · Replies 4 ·
Determine the maximum magnetic flux through an inductor
- gnome
- · Replies 3 ·
Shortest ladder over a 6ft fence to reach a building
- AD
- · Replies 9 ·
Solving a Sound Wave Problem: Distance to Target
- Banana
- · Replies 10 ·
How do I prove geometric statements?
- hecate
- · Replies 2 ·
How high does sea water rise in the bell?
- vmind
- · Replies 2 ·
Does the Object Overcome Gravity After the Piston Stops?
- Captain_Insano
- · Replies 6 ·
Solving Perplexing Problems: 2 Examples
- tucky
- · Replies 2 ·
Static friction and equilibrium - problem with geometry
- ShawnD
- · Replies 29 ·
What is the acceleration of a block in simple harmonic oscillation at t=3.0s?
- fstam2
- · Replies 2 ·
Does heat of vaporization vary with boiling temperature?
- franz32
- · Replies 8 ·
How to Calculate Tension and Horizontal Force on a Human Forearm?
- BillyCheung
- · Replies 6 ·
Understanding Tension in a Simple Bridge System
- BillyCheung
- · Replies 3 ·
Determine the time it takes for the ball to reach the plane of the fence
- ptomizzle
- · Replies 2 ·
Surface integral of E field over cube faces using Gauss' law
- cepheid
- · Replies 9 ·
Solving a Pesky Conservation Problem: Apple + Arrow
- tandoorichicken
- · Replies 2 ·
Glass marble is dropped down an elevator shaft
- tandoorichicken
- · Replies 2 ·
Solving Rotation Physics: Find Net Force for Ball Rolling Down Ramp
- Little Dump
- · Replies 2 ·
Vertical Ball Movement: Calculating Time in Flight (Calculus Practice)
- VikingStorm
- · Replies 2 ·
Solving Pivoting Rod Angular Acceleration
- Juntao
- · Replies 4 ·
True or False on Simple harmonic motion
- Security
- · Replies 17 ·
How Can We Simplify Integration Using Trigonometric Identities?
- BLUE_CHIP
- · Replies 1 ·