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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Help: Solve Kinetic Energy of Pushing Piano up an Incline
- buffgilville
- · Replies 5 ·
Rotational Motion of a long pole
- Skomatth
- · Replies 2 ·
Calculating Kinetic Energy Change of Earth's Orbit
- lmf22
- · Replies 2 ·
Calculating the Resultant Force at J
- Kdawg
- · Replies 3 ·
Block sliding down 50° ramp with opposing rope force
- AtlBraves
- · Replies 3 ·
Best Physics AP Books for High School Students?
- Kadaj
- · Replies 18 ·
Finding acceleration from scale reading in an elevator
- benji
- · Replies 5 ·
Help Needed: Solving Golf Ball Kinetic Energy Problem
- miranda82
- · Replies 5 ·
Solving a Grade 12 Physics Problem: Pulling vs Pushing a Heavy Box
- JimmyRay
- · Replies 3 ·
GAIN and IMPEDANCE of a complex Circuit
- JamesJames
- · Replies 2 ·
Finding where gravitational force is zero between Earth and Moon
- Dragonex
- · Replies 2 ·
How Can You Solve Problems Using Newton's Laws?
- neik
- · Replies 2 ·
Magnetic Fields in Zero Gravity: Do They Interact with Gravity?
- Viper2838
- · Replies 4 ·
How Do You Calculate Impulse for a Bungee Jumper?
- koomba
- · Replies 4 ·
Finding (x+y)^2 given x^2 + y^2 = 16 and xy = 8
- Dooga Blackrazor
- · Replies 6 ·
Solving (1-h^2*r^2*1.1)tg(h*r)=h*r for h
- urban
- · Replies 4 ·
How Do You Calculate the Height from Which a Tennis Ball is Struck?
- charvonne coates
- · Replies 2 ·
Prove or disprove this inequality
- kakarukeys
- · Replies 13 ·
Force needed for a 0.80m standing jump from a 70kg person
- krypt0nite
- · Replies 2 ·
How Do You Calculate the Coefficient of Friction for a Block on the Ceiling?
- benji
- · Replies 2 ·
Write in the form z=x+jy the complex number e^e^j ^=exp
- dionys
- · Replies 5 ·
Finding a Basis for a Subspace with a Specific Condition?
- phy
- · Replies 2 ·
Estimating Kinetic Friction Coefficient of Jet-Powered Car
- envscigrl
- · Replies 4 ·
What are the mertis and demerits of thevenin's theorem
- asha84
- · Replies 2 ·
Integrate Even Powers of Trig Functions: Cos²θ
- tandoorichicken
- · Replies 2 ·
Apparent weight in elevator accelerating upward
- ryan1357
- · Replies 2 ·
Synchronizing Clocks in 2 Different Frames: How to Start
- fresh
- · Replies 2 ·
Easy Energy Conservation Problem causing me trouble
- motoxkx
- · Replies 3 ·
Summation of rectangular areas (calculus) problem.
- singleton
- · Replies 4 ·
How Do You Solve Improper Integrals Involving Logarithms?
- ACLerok
- · Replies 6 ·
List of questions i just cannot figure out Someone
- rx-[7]
- · Replies 2 ·
Calculating Center of Mass for a Circular Hole in a Uniform Square Sheet Metal
- pringless
- · Replies 5 ·
What is the momentum of the box at the bottom?
- punjabi_monster
- · Replies 3 ·
How Do You Calculate Elevator Motion and Energy After a Cable Snap?
- vtech
- · Replies 7 ·
Finding Final Velocity by Energy Techniques
- GingerBread27
- · Replies 4 ·
How Does a Ball Come Back to You After You Throw It?
- perplexed58
- · Replies 2 ·
Why does the cart move if the horse and cart push on each other equally?
- JimmyRay
- · Replies 10 ·
Proving Leibniz Logic: \frac{\urcorner P \equiv false}{P \equiv true}
- physicsuser
- · Replies 1 ·
What is the f, if f(f(x)) = 2x^2 -1
- Xamfy19
- · Replies 2 ·
Speed of sound from lightning-thunder rule of thumb
- Tatum
- · Replies 6 ·
Max angle for parking on a steep hill with coefficient of friction 0.8
- dabouncerx24
- · Replies 8 ·
Momentum and impulse practice problems with answers
- PhysicsNovice
- · Replies 5 ·
Is this the correct basic code for a for-loop?
- tandoorichicken
- · Replies 6 ·
Particle velocity limit and definite integral with multiple ranges
- misogynisticfeminist
- · Replies 4 ·
Change in gravitational potential energy for a skier on a 2860 m lift
- shawonna23
- · Replies 5 ·
Integrating 2m/(cx²) from x to 0
- Speags
- · Replies 2 ·
Random problem from vector cal
- Saint Medici
- · Replies 4 ·
Can You Solve These Calculus Derivative Problems Correctly?
- Alethia
- · Replies 3 ·
Calculating De Broglie Wavelength of a 100g Ball
- Rachael_Victoria
- · Replies 2 ·
This shows that the intervals (0,1) and [0,1] are equivalent.
- tink
- · Replies 2 ·
What is the energy difference when the Earth's distance from the sun changes?
- physicsss
- · Replies 7 ·
Solving Tension Bag Problem: Find T1
- ek
- · Replies 5 ·
Springs / elastic potential energy / grav pot energy
- vtech
- · Replies 2 ·
Why does gravity pulls objects downward rather than upward?
- xtine
- · Replies 2 ·
How Can I Solve These Challenging Physics Problems?
- Scotty
- · Replies 2 ·
Why Am I Struggling with Projectile Motion Problems in Physics?
- HurricaneH
- · Replies 2 ·
Having trouble with Hydrostatics problem
- Theelectricchild
- · Replies 5 ·
Relativistic Proton Acceleration: Calculate Potential Difference in Volts
- stunner5000pt
- · Replies 3 ·
Motion in 2d/Centripetal Acceleration
- HurricaneH
- · Replies 3 ·
Tricky track problem (continued)
- Ravnus9
- · Replies 2 ·
Classical uncertainty principles
- danoonez
- · Replies 2 ·
1000 Hz corresponds to I = 10^-12
- colonel
- · Replies 3 ·
Block striking a horizontal spring
- TraceBusta
- · Replies 13 ·
How Much Work Does Friction Do to Stop a Sliding Ball?
- Hughey85
- · Replies 3 ·
Kinematics: force along x-axis problem
- vsage
- · Replies 3 ·
What does a bathroom scale measure?
- JimmyRay
- · Replies 7 ·
Calculating the Horizontal Force for a Non-Slipping Wedge
- ElectricMile
- · Replies 3 ·
Why Did My Calculation of Temperature Change Result in the Wrong Answer?
- punk_rawk_jazz
- · Replies 4 ·
Tension in cord holding 4.4 kg bundle in accelerating elevator
- JeffC
- · Replies 3 ·
Stuck on Physics Problems? Let's Solve Them!
- joej
- · Replies 2 ·
How Does Jumping from a Height Affect the Reading on a Bathroom Scale?
- physicsss
- · Replies 3 ·
Relative velocities of trains and collector in special relativity
- stunner5000pt
- · Replies 1 ·
What are the tensions in strings 2 and 3 and the acceleration of the mass?
- Mivz18
- · Replies 8 ·
How Much Force Must a Painter Apply to a Pulley System to Ascend?
- ElectricMile
- · Replies 2 ·
Calculating Angular Momentum of Disc with Mass Falling 6cm from Center
- In a "moment"um
- · Replies 2 ·
Angular Dynamics: Solving 2-Wheel Problem w/ Initial Resting Wheel
- cb
- · Replies 4 ·
How Do You Evaluate the Limit of sin(x)/sqrt(x) as x Approaches 0?
- johnnyICON
- · Replies 3 ·
Moles of malachite from mass of water and carbon dioxide lost
- FancyNut
- · Replies 2 ·
Speed skater slowing with drag force proportional to v²
- gaborfk
- · Replies 7 ·
Find angle x where sin(x/2)=1/2 and tan(x)=sqrt(3)
- Anzas
- · Replies 5 ·
What is the Equation for Resistive Force and Speed in a Straight-Line Race?
- gaborfk
- · Replies 2 ·
Three Blocks force on each other
- Mivz18
- · Replies 9 ·
How Is Average Force Calculated in Shot Put?
- Sima
- · Replies 6 ·
Solve Free Body Diagrams: What to Do?
- ssj-gohan
- · Replies 2 ·
Determine a point where the electric field is zero
- derekbeau
- · Replies 3 ·
How Do I Solve Basic Force Problems in AP Physics?
- benji
- · Replies 9 ·
What is the maximum height achieved by the projectile?
- pinky2468
- · Replies 11 ·
Position Dependent Forces: Finding Velocity as a Function of Displacement
- Speags
- · Replies 5 ·
How Do You Determine Electric Fields and Forces Between Charges?
- derekbeau
- · Replies 3 ·
Weighing a mass over 25 kg with a spring scale that maxes at 25 kg
- HashBrown
- · Replies 2 ·
Why Can't I Solve These Seemingly Simple Physics Problems?
- Frustrated
- · Replies 5 ·
Minimum value of the coefficient of static friction
- physicsss
- · Replies 7 ·
Conservation of Momentum in Elastic Collisions: Calculating Final Velocity
- droomagon
- · Replies 2 ·
Solve 2D Motion Problem: Ball Hitting Canyon Edge
- mewmew
- · Replies 2 ·
Calculating Elevator Acceleration: Tips for Solving a Motion Problem
- mojo2185
- · Replies 7 ·
Evaluating limits of several variables
- Odyssey
- · Replies 2 ·
Simplifying the cube root of -125m⁻⁴n⁵
- uranium_235
- · Replies 8 ·
Calculus challenge problem part C and beyond
- mpm166
- · Replies 3 ·
Solve cos 2v = cos v and sin 2v = sin v
- Maria
- · Replies 3 ·
Cos(45 - v) = sin (v + 45) for all angles v?
- Maria
- · Replies 10 ·