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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How can I understand Rotational motion and dynamics better?
- misskitty
- · Replies 3 ·
Charged particle thrown upward (almsot there)
- vaxopy
- · Replies 3 ·
Why Does a Bridge Freeze Before the Road?
- misskitty
- · Replies 6 ·
Extension cord connected to heater - Find the power
- thisisfudd
- · Replies 4 ·
Perturbation of hydrogen energy due to nucleus
- JamesJames
- · Replies 5 ·
Combination of electric and magnetic fields
- bemigh
- · Replies 3 ·
Simplifying Transmission Coefficient Calculation for a Potential Barrier
- Nylex
- · Replies 3 ·
Questions About the Formation of Hydrochloric Acid
- avinash
- · Replies 4 ·
Integration of sec(v+π/2)tan(v+π/2) by substitution
- fstam2
- · Replies 2 ·
Solve (sin x)^6 + (cos x)^6 = 5/6 ((sin x)^4 + (cos x)^4)
- no name
- · Replies 6 ·
Units regarding a photoelectric question
- bemigh
- · Replies 5 ·
How to Differentiate the Electrostatic Potential to Derive the Electric Field?
- Phymath
- · Replies 2 ·
Solving a Doppler + Beat Frequency Problem for Bat Speed
- kv2
- · Replies 2 ·
How Do You Calculate the Acceleration and Distance of a Box Pulled at an Angle?
- lefty1405
- · Replies 2 ·
Can you use Newton's laws in a geocentric frame to explain Earth's orbit?
- stunner5000pt
- · Replies 4 ·
Why does power increase by factor of 4 with four D-cells instead of 2?
- thisisfudd
- · Replies 2 ·
19 kg box sliding down a frictionless ramp 4.5 m long
- billyghost
- · Replies 5 ·
How Does Frictional Force Affect Bullet Penetration in Wood?
- mugzieee
- · Replies 3 ·
Finding maximum likelihood estimators for Bernoulli distribution
- semidevil
- · Replies 2 ·
Work required to push a 36 kg box up a ramp with friction
- billyghost
- · Replies 3 ·
Calculating Charge on Conducting Balls Hanging from Strings
- Gale
- · Replies 7 ·
How Do Meters, Kelvins, and Watts Relate in This Equation?
- tony873004
- · Replies 4 ·
Wavelength and properties of gamma-ray and X-ray photons with same energy
- siresam88
- · Replies 2 ·
What Does a ≡ b (mod m) Imply in Mathematics?
- yay_goobers2112
- · Replies 4 ·
Reading bytes from an MP3 file in C++
- Math Is Hard
- · Replies 26 ·
Impact Parameter of Alpha Particle Rutherford
- PhatPartie
- · Replies 3 ·
Magnets making things hurtle towards me eep
- lythia
- · Replies 2 ·
How Is Maximum Resistance Calculated in a Superconducting Ring Experiment?
- andrew410
- · Replies 6 ·
Constraints on monotone sequences for telescoping series convergence
- Townsend
- · Replies 2 ·
What is the Total Force Exerted by the Cockpit Seat on a Climbing Jet Pilot?
- wildr0id
- · Replies 6 ·
How Is the Period of Uniform Circular Motion Affected by Latitude?
- stunner5000pt
- · Replies 2 ·
What Are the Dynamics in a Circular Orbit?
- oldunion
- · Replies 26 ·
Head on Collision with a car physics
- shamockey
- · Replies 3 ·
Kinematic Problem: Solve Traffic Light Stop Distance
- ireneooi
- · Replies 4 ·
Net force exerted between hemispheres of uniformly charged sphere
- Kelvin
- · Replies 6 ·
Magnetic field from two parallel wires with opposite currents
- waywardtigerlily
- · Replies 2 ·
Is length a fundamental property or an abstract relationship between objects?
- whatzzupboy
- · Replies 2 ·
How Does Lenz's Law Affect Electron Force Calculation?
- andrew410
- · Replies 2 ·
Understanding Lenz's Law: Solved Example on Homopolar Generator
- andrew410
- · Replies 2 ·
How Do You Calculate Spring Constants and Bullet Speeds in Physics Problems?
- 94sonoma
- · Replies 2 ·
Solving for x: Graph of y=|2x|-|3-x|
- ][nstigator
- · Replies 4 ·
Calc Work Needed to Push Car up 11.0 deg Incline
- xelda
- · Replies 6 ·
Why Does the Toy Truck Stop at 3.2m Instead of 3.5m?
- Alex_
- · Replies 10 ·
Is Cos2x the Same as Cos^2(x) in the Equation Cos2x + Cosx + 1 = 0?
- aisha
- · Replies 5 ·
Check expression equivalent to
- aisha
- · Replies 2 ·
Calculating RLC Circuit Damping Time and Energy Loss
- andrew410
- · Replies 2 ·
Terminal Speed of Golf Ball Dropped from 25m
- ProBasket
- · Replies 6 ·
Simply Checking an Answer in Calculus
- The Bob
- · Replies 7 ·
Solving a Three-Player Nash Equilibrium
- msmith12
- · Replies 1 ·
Electrostatics charged particle Problems
- blue_soda025
- · Replies 2 ·
Total Accel: (15)^2/173 + .6614 m/s^2
- runner1738
- · Replies 2 ·
Special relativity and velocity of a particle
- matpo39
- · Replies 2 ·
Calculate the coefficient of kinetic friction between the slide and the child
- physicsss
- · Replies 8 ·
Stone's Height Above Window Question
- jen333
- · Replies 12 ·
How to solve 2 - 2sin^2(theta) = cos(theta) on the domain [0,2pi]
- aisha
- · Replies 12 ·
Most Plausible Reason for Large Stable Nuclei's Extra Neutrons
- Faiza
- · Replies 2 ·
E-field for infinitely long cylinder
- LakeMountD
- · Replies 4 ·
Solving dy/dx = (x-4)(y+1) with y(0)=4
- p53ud0 dr34m5
- · Replies 8 ·
Did I solve the calculus problem correctly?
- p53ud0 dr34m5
- · Replies 10 ·
Tangent to the Point: Solving for b and c
- danne89
- · Replies 2 ·
Struggling with Parallel Plate Capacitor Concepts?
- jay3050
- · Replies 2 ·
How to Find Electric Field at Semicircle Center Without Calculus?
- PhysicsNewb
- · Replies 2 ·
Limit of cube root using difference of cubes factorization
- a_ng116
- · Replies 21 ·
Net force from rope pulling if I weigh 800N and tension is 347N
- mohlam12
- · Replies 6 ·
Very simple combining fields question
- Jacob87411
- · Replies 2 ·
Solving Algebraic Fractions with 3 Binomials
- homegrown898
- · Replies 3 ·
Calculating Work and Coefficient of Kinetic Friction for a Sliding Seal
- askthefool
- · Replies 5 ·
How Do I Analyze and Graph the Function \( \frac{x}{x^2-4} \)?
- jzq
- · Replies 4 ·
Electric Field Calculation for Non-uniformly Charged Sphere
- ambuj123
- · Replies 2 ·
Solving Work Needed to Push 1147kg Car Up 15.1o Incline
- Jayhawk1
- · Replies 13 ·
How do I solve x^3 + y^3 = 1, x^4 + y^4 = 1
- mohlam12
- · Replies 4 ·
C++ code won't prompt for input value for a
- hytuoc
- · Replies 6 ·
Finding the derivative of y=t/(1+1/t)
- danne89
- · Replies 10 ·
What other instruments are related to the Tuba?
- mrs_joel_madden64
- · Replies 6 ·
Elastic Collision and conservation of momentum
- futb0l
- · Replies 3 ·
How did vibrations cause the Tacoma Bridge collapse?
- liv
- · Replies 19 ·
What is the Correct Method for Calculating Error Expressions in Capacitance?
- NotaPhysicsMan
- · Replies 7 ·
What is the tension in the cord as the elevator accelerates?
- runner1738
- · Replies 3 ·
Problem on finding second derivative.
- jzq
- · Replies 3 ·
Parametric equations for particle motion
- jaidon
- · Replies 2 ·
How can I prove Gauss's Law for a continuous charge distribution?
- AKG
- · Replies 10 ·
How can I find limits and slopes in calculus?
- erik05
- · Replies 9 ·
Area of region enclosed by three curves with y=5 as a boundary
- ProBasket
- · Replies 6 ·
Parabola passes through the points (0,4), (0,-1) and (6,1)
- HawKMX2004
- · Replies 2 ·
Finding E and B fields from forces on a test charge with three velocities
- robert25pl
- · Replies 6 ·
Integrating 50 + 14sin(πt/12) from 0 to 12
- ziddy83
- · Replies 6 ·
How Do I Apply F=ma to Solve These Physics Problems?
- idriveatc
- · Replies 3 ·
A little push on this trig identity
- aisha
- · Replies 4 ·
Motion questions show me the steps
- dagg3r
- · Replies 2 ·
Try it do you get the same answer?
- aisha
- · Replies 3 ·
Simplify in sum and difference equation
- aisha
- · Replies 17 ·
Check this for me involving sin theta
- aisha
- · Replies 3 ·
Find initial speed of projectile fired from 150m cliff taking 10s to reach base
- catalyst55
- · Replies 19 ·
Gravitational force at different altitudes above Earth
- amandablackwood
- · Replies 13 ·
Electric Potential Difference and charges
- chattkis3
- · Replies 3 ·
How Do You Calculate the Maximum Height of a Projectile Using Energy Concepts?
- WingsofSelkhet
- · Replies 3 ·
Proving Trigonometric Identity Involving Double Angle Formula
- aisha
- · Replies 6 ·
Estimate takeoff speed of aircraft
- physicsss
- · Replies 8 ·
Understanding Specific Heat and Calorimetry: Experiment or Equation?
- misskitty
- · Replies 3 ·
Momentum of Bullet and Angle of Impact: A Physics Lab
- SnitchSeekaHarry
- · Replies 2 ·