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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Finding Perpendicular Vector and Area of Triangle Using Cross Product
- meadow
- · Replies 2 ·
Centripetal and average acceleration
- ViewtifulBeau
- · Replies 2 ·
Integrate e^x^2
- alamin
- · Replies 2 ·
Force due to pressure on side of a container
- loto
- · Replies 6 ·
Bat sonar with temperature gradient at 40m distance
- Vanity
- · Replies 1 ·
RC circuit discharge: finding time when voltage drops from 80V to 5V
- cunhasb
- · Replies 1 ·
Solving Vector Coordinates Problem for Circular Movement
- brad sue
- · Replies 6 ·
How does a computer calculate acceleration and velocity?
- h_k331
- · Replies 6 ·
How is the Displacement Current Used to Resolve Issues with Ampere's Law?
- hhh79bigo
- · Replies 5 ·
How do Nuclear Submarines work in the James Bond movie
- actingbiz1
- · Replies 6 ·
Calculating Wave Function for Standing Wave on String
- Scarborm
- · Replies 2 ·
Finding tension in three asymmetric cables supporting a weight
- philipc
- · Replies 4 ·
When Does the Marble Overtake the Stone in a Gravity Experiment?
- mickarose
- · Replies 4 ·
Calculating Tension and Speed in Circular Motion: A Tether Ball Example
- Lalasushi
- · Replies 1 ·
Solve Heat Conduction for 3D Rectangular Solid
- danai_pa
- · Replies 1 ·
Can a number have more than one primitive root?
- pivoxa15
- · Replies 7 ·
Are 3 Vectors Coplanar? Checking the Triple Product
- teclo
- · Replies 4 ·
Recoil energy and Heisenberg Uncertainty principal
- amb123
- · Replies 2 ·
Calculus III: 3D coordinates, distances, and sphere equations
- mr_coffee
- · Replies 4 ·
Understanding Big-Oh Problems with Two Parts
- IcyBlueRose
- · Replies 7 ·
Solving xy' = y² + y
- asdf1
- · Replies 15 ·
Protecting an egg in a 15 meter drop with limited materials
- carlos_isaias
- · Replies 1 ·
Electric Field charge calculation
- Brad_1234
- · Replies 4 ·
Why Is the Electric Field at the Origin Zero for This Charge Configuration?
- don23
- · Replies 5 ·
Calculating Car's Acceleration in Circular Motion
- tubworld
- · Replies 6 ·
Solving Dimension Matching Problem with Brad - 65 Characters
- brad sue
- · Replies 4 ·
Finding the net electrostatic force on particle 1, triangle
- mr_coffee
- · Replies 9 ·
Calculating Course and Arrival Time for a Plane with Wind-Affected Speed
- Pseudo Statistic
- · Replies 5 ·
Calc III, what point could this be?
- mr_coffee
- · Replies 8 ·
Solving Taylor Series Problem with m-th Derivative Bound
- brad sue
- · Replies 2 ·
Eigenfunctions and Energy Measurements in Quantum Mechanics
- t1mbro
- · Replies 4 ·
Is V Also a Vector Space Over the Real Numbers?
- loli12
- · Replies 2 ·
Projectile motion but with resistive force
- tubworld
- · Replies 1 ·
Factors affecting the resonating frequency of wire
- revan
- · Replies 5 ·
What is the purpose of dx in an integral?
- ludi_srbin
- · Replies 4 ·
Average acceleration when velocity changes from 25m/s east to 25m/s south
- Sisi
- · Replies 6 ·
Finding Fourier Coefficient for f(x) = 2δ(x-1) + δ(x-2)
- Zaare
- · Replies 3 ·
Integrating 1/cosh²x in separable ODE
- asdf1
- · Replies 7 ·
What are alternative methods for solving the O.D.E. y'=(x^2+y^2)/xy?
- asdf1
- · Replies 7 ·
Solving the differential equation y' = (1-2y-4x)/(1+y+2x)
- asdf1
- · Replies 16 ·
Solving Unseparable O.D.E. xyy`= 2y^2 +4x^2
- asdf1
- · Replies 12 ·
Proving Matrix Addition/Scalar Multiplication Properties
- asdf1
- · Replies 10 ·
Electron orbiting a proton with 24-hour period
- blur13
- · Replies 1 ·
Can You Drop an Object Through a Hole in the Earth?
- insertnamehere
- · Replies 11 ·
How Do Traffic Signal Timings Affect Car Speed Calculations?
- brad sue
- · Replies 2 ·
How Do You Find the Velocity of a Particle Given Its Position Function?
- JoshHolloway
- · Replies 4 ·
Do Independent Normal Variables Exceed a Given Total?
- WY
- · Replies 3 ·
Electric field of a uniformly charged disk
- meadow
- · Replies 1 ·
SHM problem involving an applied force
- insertnamehere
- · Replies 6 ·
Solving projectile motion problems with trigonometry
- thugg
- · Replies 4 ·
How Do You Solve These Physics Problems Using Component Methods?
- thugg
- · Replies 7 ·
Have a question on how to do an integral.
- PCP
- · Replies 1 ·
Why does squaring both sides give 5 = 9?
- TSN79
- · Replies 7 ·
Periodic Solutions to DE with Extra Condition: Solving for Unknown Constants
- Zaare
- · Replies 2 ·
Finding the Unit Vector Orthogonal to a Defined Plane
- teclo
- · Replies 6 ·
What happens to electrostatic force when you double the charges?
- mystry4
- · Replies 3 ·
Can Initial Position Alone Determine an Oscillator's Amplitude and Phase?
- insertnamehere
- · Replies 2 ·
Physics help book for PHY 121 and remembering kinematics formulas
- clair_a_net
- · Replies 1 ·
Can an infinite subset be dense in a finite complement topology?
- Oxymoron
- · Replies 11 ·
Why does the commutator Dx - xD equal 1?
- tirnanog84
- · Replies 3 ·
Where will a ball thrown into a hole dug from North Pole to South Pole end up?
- Neha Sanghvi
- · Replies 4 ·
EM: Net Force on Test Charge Q in 12-Sided Polygon
- matpo39
- · Replies 1 ·
Are there additional ways to enhance problem solving skills?
- siddharth
- · Replies 1 ·
How to Find Vector Components and Parametric Equations for Plane Intersections?
- dagg3r
- · Replies 1 ·
Rock thrown up from cliff and dropped rock timing problem
- Pseudo Statistic
- · Replies 1 ·
Is the Mapping f:\mathbb{Q}_p \rightarrow \mathbb{R} Continuous?
- Oxymoron
- · Replies 30 ·
Are Changing Electric Fields Non-Conservative?
- shahidkhilji
- · Replies 1 ·
Proving hyperbolic trig formula
- tuly
- · Replies 4 ·
Trouble remembering integration
- LocationX
- · Replies 4 ·
How do I solve the numerator in the mean square radius integral?
- sniffer
- · Replies 2 ·
My lack of problem solving skills - Mechanics
- infraray
- · Replies 8 ·
When is work positive or negative when sawing a tree with a handsaw?
- Raikou Tatsu
- · Replies 5 ·
Which Object Reaches the Bottom of an Incline Fastest?
- mpm
- · Replies 1 ·
Sine function with amplitude 3, period π/6, and phase shift π/3
- aisha
- · Replies 4 ·
What is the vector orthogonal to <-3,2,0> and <0,2,2> with the form <1,_,_>?
- Whatupdoc
- · Replies 5 ·
How Do You Solve Systems of Equations Using an Inverse Matrix?
- TonyC
- · Replies 8 ·
How Many Liters of Paint Needed for Pyramid?
- smartguy_ppl
- · Replies 7 ·
Conservation of energy and vertical circular motion
- tubworld
- · Replies 8 ·
Complex numbers and Argan Diagram
- coffeebeans
- · Replies 2 ·
Distributing 6 Distinct Molecules Across 3 Energy Levels
- patcho
- · Replies 2 ·
What is the area bounded by Y=X^1/2, the x-axis, and 2X+3Y=6?
- tuly
- · Replies 3 ·
How do I work through epsilon-delta limit proofs?
- sony
- · Replies 24 ·
How Much Air to Remove to Maintain Pressure When Temperature Increases?
- physicsss
- · Replies 4 ·
Can you multiply this matrix with a singular value?
- TonyC
- · Replies 6 ·
Integration by parts with exponential and sine functions
- UNIQNESS
- · Replies 10 ·
Why do these two derivatives of y=vx give different results?
- asdf1
- · Replies 2 ·
What Are the Probabilities Linked to Business and Financial Media Consumption?
- mouse
- · Replies 1 ·
Perhaps delta function or inverse Laplace transform?
- EvLer
- · Replies 4 ·
Solve Matrice Problem: X = 4A - 4B
- TonyC
- · Replies 4 ·
Why Is There a Maximum Electric Field Point Outside a Charged Ring?
- Brad_1234
- · Replies 2 ·
Mechanism of a cylinder rolling down a ramp?
- kendro
- · Replies 2 ·
The Archimedes Principle and Volume Change in Water
- parwana
- · Replies 2 ·
Do Path-Dependent Processes Affect Thermodynamic Quantities in Ideal Gases?
- painfive
- · Replies 1 ·
Frequency Formulas: Same or Different?
- asdf1
- · Replies 2 ·
How Can I Accurately Measure Gravity Using a Pendulum in My Lab?
- ccflyer
- · Replies 10 ·