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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Deriving the Volume of a Sphere Using Spherical Coordinates
- sssddd
- · Replies 4 ·
Draw a tangent that is perpendicular to the line
- TSN79
- · Replies 7 ·
Newtons Law Involving Friction
- ISU20CpreE
- · Replies 9 ·
Integrating log base 2 in a vector line integral
- mr_coffee
- · Replies 1 ·
Minimum Kinetic Friction for Inclined Block System
- ISU20CpreE
- · Replies 2 ·
What is the time of flight for a projectile launched from a cliff?
- brandon26
- · Replies 7 ·
What is the height of the aeroplane at the moment the package was released?
- brandon26
- · Replies 8 ·
Why does lamp brightness vary in a series RLC circuit with changing inductance?
- dagg3r
- · Replies 1 ·
A complex integral from the text
- quasar987
- · Replies 7 ·
Difficulty with EASY equivalence statement
- Oxymoron
- · Replies 39 ·
Computing Tension and Velocity in a Wire
- hotmail590
- · Replies 7 ·
How Do You Calculate Var(X) in a Conditional Variance Problem?
- grimster
- · Replies 3 ·
Calculating minimum amount of time
- Werg22
- · Replies 7 ·
Solve Dynamics: Acceleration with F=52 N, µ=0.22, m1=4.3 kg, m2=1.1 kg
- PhysicsUSAAOK
- · Replies 1 ·
How does planet mass and diameter affect your weight?
- jakeowens
- · Replies 4 ·
Integrating $\frac{dv}{dt}=g-kv^2$ from $v=0$ to $v_t$
- Locrian
- · Replies 5 ·
Find \frac{dz}{dx} at (0,0,0) for sin (2x+4y+z) = 0
- Whatupdoc
- · Replies 1 ·
Compositions into relatively prime parts
- TimNguyen
- · Replies 5 ·
Dimensions of a closed rectangular box
- Whatupdoc
- · Replies 5 ·
What Should the Insurance Premium Be to Break Even?
- don_anon25
- · Replies 2 ·
Cylindrical and Spherical Coordinate systems
- Warr
- · Replies 2 ·
Rotor-ride carnival: minimum static friction coefficient at 0.5 rev/s
- confusedbyphysics
- · Replies 8 ·
Finding time for block B to fall from height h to floor
- Lucretius
- · Replies 7 ·
Why does dividing a cube into 1000 smaller cubes increase surface area?
- Ester
- · Replies 8 ·
Struggling with Integration by Parts? Try a New Approach with Secant Functions!
- Ginny Mac
- · Replies 4 ·
Projectile Motion Graphs: Radius of Curvature as a Function of X and Time
- Warr
- · Replies 4 ·
Five competition math problems on sequences, ropes, and geometry
- marmot83457
- · Replies 2 ·
Calculating Trace of 4x4 Matrix: (A+I)^{-1}
- Ahmes
- · Replies 1 ·
Football kick projectile problem
- nrc_8706
- · Replies 5 ·
Overdamped and critically damped oscillator
- Aneleh
- · Replies 1 ·
Solve High School Lockers Calculus Problem
- whisperblade
- · Replies 1 ·
Solving Related Rates Problem: Finding the Angle of Depression
- kendal12
- · Replies 4 ·
Why Does the Team That Pushes Harder Against the Ground Win in Tug-of-War?
- r3dxP
- · Replies 1 ·
How to Calculate Curl for a Rectangular Fluid Path
- don_anon25
- · Replies 2 ·
How Quickly Does Ice Form on a Pond at -10°C?
- ice87
- · Replies 2 ·
Constant acceleration of velocity
- TickleMeElma
- · Replies 6 ·
Why does center of mass behave
- xailer
- · Replies 3 ·
How Should Net Force and Friction Be Ranked for Blocks A and B?
- amcavoy
- · Replies 10 ·
Prove inequality 2ab <= a^2 + b^2 from 0 <= (a - b)^2
- jetoso
- · Replies 2 ·
Several phys201 problems ( on how to approach them)
- bmore007
- · Replies 16 ·
PH: product of concentration of H+ and OH-
- amcavoy
- · Replies 3 ·
What Determines the Oscillation Frequency of a Billiard Ball on a Drum?
- daftjaxx1
- · Replies 1 ·
Heat loss from boiling water and ice layer growth
- ilovephysics
- · Replies 6 ·
How to Determine the Aircraft's Ground Path Direction?
- madden
- · Replies 2 ·
How do I find binomial coefficients for long numbers using Pascal Triangle?
- TonyC
- · Replies 1 ·
What the test question that just bugged the crap outta me
- schattenjaeger
- · Replies 4 ·
Building a projectile launcher for an angle vs. range lab
- Dee_Train
- · Replies 3 ·
Light experiment for 16-year-olds without trigonometry
- quaanaa
- · Replies 8 ·
Find the limit of (1-x)tan(πx/2) as x approaches 1
- necessary
- · Replies 4 ·
To understand polar coordinates
- Castilla
- · Replies 10 ·
Sum of all forces zero,but net torque not zero?
- xailer
- · Replies 5 ·
Calculating Tension in a Suspended Loudspeaker
- dsb_101
- · Replies 2 ·
Re(eigenvalue) inequality problem
- N2
- · Replies 2 ·
Average speed and velocity for a runner going east then west
- Zingu
- · Replies 11 ·
(sin x)^n-(cos x)^n =1 for all x
- dpsguy
- · Replies 6 ·
How Do You Calculate Aircraft Velocity with Wind Influence?
- gasapple
- · Replies 2 ·
Finding the ratio of the inner and outer radii
- LostinPhysics
- · Replies 1 ·
Solving Capacitor Problem - Find q1
- Tcat
- · Replies 1 ·
Finding jump distance after 5% velocity increase
- IB
- · Replies 12 ·
Solving 300/(5vw) + 300/(3vw) = 8 for vw
- DB
- · Replies 8 ·
Solving for v in a rational equation with two fractions
- DB
- · Replies 6 ·
Proving Triangle Properties with Sin and Cos
- mohlam12
- · Replies 11 ·
Work done by friction on a 62 kg player sliding 2.40 m to third base
- wr1015
- · Replies 6 ·
Will Changes in Mean and Standard Deviation Affect Median and Mode?
- yukcream
- · Replies 3 ·
Find the derivative of (2x+3)³/(4x²-1)⁸
- Aresius
- · Replies 25 ·
Prove Determinant of Rotation Matrix is 1 w/Continuity Argument
- asdf60
- · Replies 4 ·
Continuity and Intermediate Value Theorem
- scorpa
- · Replies 3 ·
Quick swimmer's motion question
- thschica
- · Replies 2 ·
What is the magnitude of the resultant between these two vectors?
- IB
- · Replies 23 ·
How far does a bicyclist travel in 30 minutes with a 2:1 gear ratio?
- spikebrdr
- · Replies 3 ·
Calculating Volume and Side Length of a Cut Cone - Is This Right
- Ryoukomaru
- · Replies 1 ·
Calculating the electric potential engery of the system
- mr_coffee
- · Replies 18 ·
Steady state solutions for a damped driven oscillator
- Benny
- · Replies 2 ·
Related rates volume pouring in and out question
- r3dxP
- · Replies 4 ·
What is the Maximum Speed for Avoiding a Barrier with Constant Acceleration?
- lucky47
- · Replies 9 ·
How do I go about this [projectile motion]
- IntellectIsStrength
- · Replies 1 ·
Reviewing Responses to Motion and Forces Questions
- shorty_47_2000
- · Replies 1 ·
Looking for diffentiation and integration problems
- jacy
- · Replies 5 ·
Falcon falling while traveling 100m horizontally at 200 mi/h
- gasapple
- · Replies 8 ·
Checking XOR proofs with Boolean algebra rules
- chobo2
- · Replies 3 ·
Calculating Stopping Distance: Reaction Time and Acceleration in Automobiles
- courtrigrad
- · Replies 1 ·
Calculating Tension in a Sleigh Rope on Snow
- spectrum
- · Replies 3 ·
Coefficient of kinetic friction on a 26° slide
- ISU20CpreE
- · Replies 1 ·
Electric Potential in a Conductor
- saugei
- · Replies 1 ·
Abstract algebra proof: composition of mappings
- calvino
- · Replies 1 ·
What is the Frequency of a State Function Describing a Proton?
- Jelfish
- · Replies 3 ·
Find min. wave amplitude (A_min) for Ant on Tightrope: T_s, mu, lambda, g
- ussrasu
- · Replies 5 ·
Is Ax = b Consistent Given This RREF?
- jtm
- · Replies 1 ·
Calculate Wave Amplitude for T, u, lambda, g
- hotmail590
- · Replies 3 ·
Spaceship journey to the moon: max speed, constant speed distance, and total time
- courtrigrad
- · Replies 1 ·
Finding T in an Elevator Moving with Constant Velocity
- Effitol840
- · Replies 8 ·
What is the velocity of the passenger relative to the water?
- thschica
- · Replies 2 ·
Solve Diff. Eq. Problem on Symmetrical Tank with Aperture
- cefarix
- · Replies 1 ·
Calculating Electric Field at Point P on a Uniformly Charged Surface
- stunner5000pt
- · Replies 1 ·
Normalization of a wave function
- Feynmanfan
- · Replies 1 ·
Special Relativity and length contraction
- ledhead86
- · Replies 2 ·
Finding the inverse and finding a matrix * A = 0 matrix
- mr_coffee
- · Replies 6 ·
3 physics problems concerning inductance and rlc circuit
- Pepsi24chevy
- · Replies 3 ·
Techniques for solving type of Matrix problems
- niteshadw
- · Replies 1 ·