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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Solving Trigonometric Equations Using Identities
- Elijah the Wood
- · Replies 5 ·
Running out of hair to yank out (tension)
- Tycho
- · Replies 2 ·
Calculating Strain in a Slowing Elevator Cable
- Tycho
- · Replies 2 ·
Angular momentum uniform rod problem
- HobieDude16
- · Replies 8 ·
Calculating Rotor Revolutions for Space Probe Orientation Change
- GingerBread27
- · Replies 4 ·
How Do OH Groups Affect Solubility and What Solvents Clean Paints?
- dajugganaut
- · Replies 2 ·
Calculating Strain in a Steel Cable Supporting a Freight Elevator
- Tycho
- · Replies 20 ·
Calculating Force: Solving a 10 kg Book and Wall Problem at a 30° Angle
- TheShapeOfTime
- · Replies 2 ·
Using Cross Product to Find Torque
- GingerBread27
- · Replies 4 ·
Building a basketball coaching application in C++
- ponjavic
- · Replies 1 ·
What Is the Gauge Pressure at the Inlet of a Pipe in a Bourbon Distillery?
- Tycho
- · Replies 10 ·
Max Speed for 0.20kg Mass on Rotating Turntable
- tigerseye
- · Replies 2 ·
2D elastic collision with 0.039 kg puck at 5.5 m/s hitting stationary puck
- parthman5000
- · Replies 6 ·
Can NHTSA Estimate Tire Failure Rates Within Budget?
- tink
- · Replies 2 ·
How do I solve 4^x + 4^(x+1) = 40?
- ms. confused
- · Replies 11 ·
How much time does it take until the pulses pass each other?
- rocky811
- · Replies 2 ·
Is y a function of x or Sine in f(x)=sinx?
- roger
- · Replies 2 ·
How do you apply the squeeze theorem to cos(x)/x as x approaches infinity?
- kdinser
- · Replies 2 ·
Calculating Spring Constant and Force for a Vertical Spring
- dg_5021
- · Replies 3 ·
How to Determine Forces and Movements in a Connected Particles System?
- Ihsahn
- · Replies 2 ·
Why Does My Projectile Land Incorrectly After Launching Off a Ramp?
- FancyNut
- · Replies 10 ·
Does a suspended baseball bat swing as a simple pendulum?
- dg_5021
- · Replies 6 ·
Prove tan(x)-sin(x)/2tan(x) = sin^2(x/2)
- Elijah the Wood
- · Replies 5 ·
How do inequalities work?
- roger
- · Replies 13 ·
Calculating Mu for Unacceptable Dye Discharge in Paint
- tink
- · Replies 2 ·
Speed After Collision of Five Railroad Cars
- Honda47
- · Replies 2 ·
How Is Maximum Energy Loss Calculated in a Photon-Electron Collision?
- AKG
- · Replies 2 ·
Regular Networks on Torus: Can't Have Pentagons as Faces?
- Zurtex
- · Replies 3 ·
How to Calculate Work Done with Vectors?
- LondonLady
- · Replies 2 ·
Check to see if this is done correct
- butz3
- · Replies 2 ·
Simple application of Derivitives problem
- Leonidas
- · Replies 2 ·
Optimizing Heat Engines: Finding the Temperature of the Hot Reservoir
- andrew410
- · Replies 4 ·
Finding sin(x/2) given sin(x) = 8/17
- Elijah the Wood
- · Replies 4 ·
Average Force question (baseball, glove, bat)
- DLxX
- · Replies 2 ·
Pre-Calc Homework Help: Simplify (sec^2 x)(csc x)/(csc^2 x)(sec x)"
- math_fortress
- · Replies 19 ·
Solving Momentum Problem: 4000N/m Spring Compression
- mikep
- · Replies 2 ·
What is meant by 'weather element
- no idea
- · Replies 2 ·
Maximum hill angle a car can park on given static friction coefficient
- Mivz18
- · Replies 7 ·
What force is needed to rotate a cylinder given its mass and diameter?
- pitchharmonics
- · Replies 7 ·
Normalizing x·exp(-ax²) for quantum harmonic oscillator
- Rachael_Victoria
- · Replies 10 ·
Will a Rope Break if Each End is Pulled with 500 N?
- Coldie
- · Replies 6 ·
Prove g is continuous everywhere if all limits of f exist
- matrix_204
- · Replies 8 ·
How can I find the equation for y vs x using only these notations?
- UrbanXrisis
- · Replies 8 ·
Latitude and longitude of the most northern point
- Rocko
- · Replies 5 ·
Cannon recoil projectile mass with 35° tilt
- jhson114
- · Replies 12 ·
Need someone to look at my work
- Winner
- · Replies 4 ·
How Is Tension Distributed in a Multi-Block System?
- physicsgrade11
- · Replies 4 ·
Angular and Tangential Variables problem
- pinky2468
- · Replies 12 ·
Why is normal force N in the friction equation?
- Warwick
- · Replies 2 ·
Pilot's speed at top of loop when weightless and apparent weight at bottom
- nissan300zxs
- · Replies 2 ·
How to Convert 50 PSI to Liters per Minute?
- bonruddrsc
- · Replies 2 ·
Check My Physics Work: Visual Aid Provided
- UrbanXrisis
- · Replies 5 ·
Radial acceleration of the earth
- UrbanXrisis
- · Replies 2 ·
Running up some stairs, kiloWatts
- Fringan
- · Replies 2 ·
Calculating Radial Acceleration of Earth at Equator
- UrbanXrisis
- · Replies 2 ·
Cannon fired from moving train: kinematics and relative velocity
- NiteCrawler
- · Replies 2 ·
The Physics of a Recoiling Cannon
- Mivz18
- · Replies 13 ·
Magnetic force between hemispheres of rotating charged shell
- sinyud
- · Replies 12 ·
How Do I Solve This Limit Using Factoring X Out?
- quasar987
- · Replies 2 ·
What Are the Differences Between Rheostats and Potentiometers?
- benhorris
- · Replies 2 ·
Speed of objects connected by pulley when 5 kg mass falls 4 m
- moodyflower
- · Replies 4 ·
Coefficient of sliding friction between metal sled runners and cement
- Kdawg
- · Replies 3 ·
At what angle will the fishline break on a 2.00-kg swinging ball?
- Moszzad
- · Replies 2 ·
Construct an Egg Drop Device with 10 Straws and Cardboard
- golden_cactus7
- · Replies 3 ·
Quick Math Question: Simplifying Fractions and Roots
- roger
- · Replies 5 ·
Does the series with general term (2^n+1)/2^(n+1) converge?
- kdinser
- · Replies 3 ·
How Do Components of Force Affect Barge Movement in Vector Addition?
- Gughanath
- · Replies 2 ·
To confirm my answer wheter is right or wrong
- Sanosuke Sagara
- · Replies 2 ·
At what point on the x-axis is the field greatest?
- mugzieee
- · Replies 2 ·
Limit of (∛x − 1)/(x − 1) as x → 1
- quasar987
- · Replies 10 ·
How Do Electric Fields Interact at Specific Points on the Y-Axis?
- nemzy
- · Replies 3 ·
Xe-F-Xe Bond Angle - Is it 104.5?
- Tanya Back
- · Replies 2 ·
The intricacies of spring expansion
- freemind
- · Replies 1 ·
Finding Force Needed to Pull Car onto Tow Truck at Angle
- pitchharmonics
- · Replies 2 ·
How Does Tension Affect the Acceleration of Blocks in a Pulley System?
- charvonne coates
- · Replies 2 ·
Voltage and the usage of the word
- chickenpuppet
- · Replies 2 ·
Question on problem solving and Newton's 3rd law
- FancyNut
- · Replies 5 ·
General Relativity Geodesic Problem
- regretfuljones
- · Replies 2 ·
Two blocks on top of each other accelerating
- FancyNut
- · Replies 3 ·
How Do You Calculate the Force on Bolt O in a Triangular Bracket Support System?
- Addie
- · Replies 2 ·
Finding final temperature in metal and liquid heat exchange
- tedjj
- · Replies 2 ·
Mean temperature coefficient of resistance for a nichrome wire element
- suf7
- · Replies 9 ·
(n )/(2 ^n ) sequence limit problem
- courtrigrad
- · Replies 17 ·
Finding the 5th harmonic of two instruments at 320 Hz and 270 Hz
- emilyk
- · Replies 2 ·
What is the average distance between nitrogen molecules at STP?
- mlee
- · Replies 5 ·
Can you move the sigma sign inside a sum?
- Fert
- · Replies 5 ·
How Do You Calculate the Resistance of a Spherical Resistor?
- stunner5000pt
- · Replies 5 ·
Test of Second Partials - Proof
- circa415
- · Replies 3 ·
Methods for convergence divergence
- Alem2000
- · Replies 4 ·
What is the component of the total angular momentum along the axle?
- physicsss
- · Replies 12 ·
What Is the Volume of the Secret Cavity in the Brass Sculpture?
- skonstanty
- · Replies 9 ·
Finding coefficient of static friction with applied force and normal force
- Phyzix
- · Replies 4 ·
Physics: Centripetal Force, 35kg Ride, 2.25 Minutes
- Physics
- · Replies 2 ·
Calculating Amplitude of Brick Separation from Piston with SHM
- nazarip
- · Replies 7 ·
How Fast Did Klaus Spinka Accelerate While Grass Skiing?
- bballgirlweez
- · Replies 2 ·
How do I apply the chain rule to 1/(t^4 + 1)^3?
- ziddy83
- · Replies 4 ·
Work and kinetic friction problem
- kmotoao
- · Replies 2 ·
Calculating Minimum Batted Ball Speed for Homerun at Fenway Park
- hobo
- · Replies 2 ·
Closest point on a line to a given point in 3D space
- mspaic
- · Replies 5 ·
How Do You Calculate the Work Done by Gravity on an Inclined Plane?
- eil2001
- · Replies 3 ·