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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Calculating v from v0, frictional coefficients, and angle
- rockchalk1312
- · Replies 3 ·
Work done by spring and friction when 1.90 kg block hits horizontal spring
- Nfinley1
- · Replies 2 ·
What Is the Speed of the Ball When Kicked Back in This Soccer Scenario?
- OUstudent
- · Replies 2 ·
Physics Lab Question - High School
- PlanetLazy
- · Replies 4 ·
Problem pertaining to relative velocity and vector components
- Puppetstring
- · Replies 1 ·
Pressure measurement in U tube with mercury and water
- sluo
- · Replies 3 ·
Calculating frictional force on a block with different upward forces
- rockchalk1312
- · Replies 2 ·
Conservation of energy minimum speed
- firezap
- · Replies 3 ·
Electric field on surface of earthed conductor
- CAF123
- · Replies 23 ·
Calculate the equivalent capacitance in the network
- Bishop556
- · Replies 1 ·
Calculating Original Speed from Time and Velocity Changes on a Freeway
- OUstudent
- · Replies 8 ·
Adding two vectors with the component method
- farhana21
- · Replies 1 ·
Calculating ln in radioactive decay
- kjevans
- · Replies 1 ·
Find Thevenin equivalent circuit
- leroyjenkens
- · Replies 3 ·
Electric Fields-Calculating the total force on a charge
- rico22
- · Replies 12 ·
Helicopter, travelling horizontally, is 82 m above the ground. The pil
- cmkc109
- · Replies 14 ·
Angular acceleration, density question
- letsfailsafe
- · Replies 7 ·
How Do You Solve a Complex Capacitor Problem with a Metal Block Insertion?
- Hercuflea
- · Replies 3 ·
Euler's equations for constant torque?
- Luftwaff1e
- · Replies 1 ·
Conservation of energy water turbine problem
- TheRedDevil18
- · Replies 3 ·
Calculating peak voltage in a center-tapped transformer
- JJBladester
- · Replies 2 ·
Generating Expressions For Electric Flux
- Bashyboy
- · Replies 23 ·
Dimensions of Velocity Equation
- OUstudent
- · Replies 2 ·
Force between perpendicular wires in the same plane
- megaspazz
- · Replies 8 ·
Particle Kinematics with Friction
- aaronfue
- · Replies 9 ·
Problem regarding determining mass of neutrino
- dilloncyh
- · Replies 7 ·
Fluid mechanics - Conservation of mass problem
- theBEAST
- · Replies 2 ·
Finding currents in two-loop circuit with two batteries using Kirchhoff's rules
- JP4Fun
- · Replies 8 ·
How do I calculate the equivalence capacitance of this circuit?
- Bishop556
- · Replies 4 ·
Understanding Charge Density in Spherical Distributions: ρ=dQ(r)/dV(r)
- Nikitin
- · Replies 5 ·
Calculating Energy in Helium Ion Ground State via Bohr Model
- steve233
- · Replies 1 ·
An optics problem - elliptical lens and plane waves
- pergradus
- · Replies 2 ·
Why does hot water sometimes freeze faster than cold water?
- ShelbyMcD
- · Replies 3 ·
Calculate the charge in a hollow spherical conductor
- Renaldo
- · Replies 10 ·
Problems about statics. Force and Moment calculations.
- jonjacson
- · Replies 6 ·
Projectile Motion velocity and direction
- aaronfue
- · Replies 3 ·
Force on blood drop in swinging arm (circular motion)
- kgianqu2
- · Replies 3 ·
Special relativity relating S S' and S''
- Eats Dirt
- · Replies 1 ·
Electric field generated by a charged wire
- Renaldo
- · Replies 10 ·
Buoyancy and Archimedes Principle, volume ratio/density question
- phoebz
- · Replies 5 ·
Two tanks(Projecctile Motion and Relatve Velocity)
- Toranc3
- · Replies 3 ·
Finding the charge on two beads?
- janetxo
- · Replies 8 ·
Spear throw at underwater target with refraction
- skierface
- · Replies 3 ·
Find Force to Lift Chain of Length L and Mass ρ Up
- Saitama
- · Replies 77 ·
Find the final Celsius temperature of the aluminum and water
- gamobigz
- · Replies 2 ·
Electron in magnetic field and center of circumference
- bznm
- · Replies 7 ·
Ferris Wheel question (Motion in 2d)
- jmedina94
- · Replies 8 ·
Finding electric field from torque on a dipole with 4.70 μC charges
- ilovetswift
- · Replies 2 ·
Frictional force in a free-body diagram
- zeralda21
- · Replies 5 ·
Standing Waves: Linear Mass Density of a String?
- InvalidID
- · Replies 1 ·
Potential difference between the parallel metal plates
- jamesjenson
- · Replies 7 ·
Torque on a coil of wire in a magnetic field.
- SherlockOhms
- · Replies 5 ·
Rope pulling cylinder - final velocity?
- Silversonic
- · Replies 10 ·
Microwaves through an ice sphere: Which scattering solution is best?
- DarkLightA
- · Replies 2 ·
Calculate Kinetic Friction Coefficient for Hockey Puck on Ice
- kopinator
- · Replies 1 ·
The electric field of a charged semicircle from its electric potential
- sergioro
- · Replies 3 ·
Electron in uniform field caused by two plates
- Fluxthroughme
- · Replies 2 ·
Heat liberated after connecting two plates
- Saitama
- · Replies 30 ·
RMS error in volume of a cylinder
- OONeo01
- · Replies 4 ·
How can I solve this Work Energy Theorem problem for finding height?
- TheRedDevil18
- · Replies 14 ·
Charge on a particle to balance its weight
- Fluxthroughme
- · Replies 4 ·
Gr.12 Physics 30 TextBook *Curling(sport)* question
- elmosworld403
- · Replies 3 ·
Some one me with the derivation
- lioric
- · Replies 12 ·
Finding position vectors of x y z in meters
- Sneakatone
- · Replies 5 ·
Equivalent Resistance (Prep for Lab on DC circuits)
- TheOculus
- · Replies 2 ·
Where Is the Zero Potential Point Between Two Unequal Charges?
- phunphysics2
- · Replies 10 ·
Calculating Superman's Average Force (due in 4 days)
- riggi91
- · Replies 4 ·
Resultant vector given initial velocity and acceleration
- idllotsaroms
- · Replies 4 ·
Questions on 3d displacement vectors
- Sneakatone
- · Replies 5 ·
Which Frequencies Will a Listener Not Hear from Two Variable-Frequency Speakers?
- Von Neumann
- · Replies 8 ·
SIN contest Tension and Acceleration question
- fchen720
- · Replies 7 ·
Finding Thevenin and Norton equivalents with short circuit between A and B
- GreenPrint
- · Replies 18 ·
Pendulum equation for a cart on a moving platform
- zoom1
- · Replies 3 ·
Electric Field Due to Dipole Problem
- Renaldo
- · Replies 4 ·
Calculating Power in a Force Problem with Changing Angle and Time
- jaumzaum
- · Replies 6 ·
Question on velocity at T1 and T2 problem
- njt84572
- · Replies 1 ·
Frequency of small oscillations in potential U(x)=1-e^(-x^2)
- Sefrez
- · Replies 1 ·
Calculating Time for Sliding Chain through Hole
- derravaragh
- · Replies 2 ·
Calculating Maximum Bending Stress of a Beam
- MMCS
- · Replies 2 ·
How High Does a Rocket Go If Its Engine Cuts Off at 500 Meters?
- CollegeStudent
- · Replies 4 ·
Why Do Time Intervals Differ in Motion Analysis Problems?
- cattalion
- · Replies 5 ·
Tension in the rope of tug of war
- deblimp
- · Replies 1 ·
Calculating Tension For A Massless String
- Yosty22
- · Replies 3 ·
Calculating the force in a crane
- Joren
- · Replies 1 ·
Why Pure Nitrogen System Evacuates Faster in 500 Microns Vacuum
- smb360rewind
- · Replies 1 ·
Electric Field at Surface of Earthed Sphere (using image charges)
- Mute_button
- · Replies 1 ·
Uniformly charged rod(exam in 3 hours, )
- sushi362
- · Replies 1 ·
Particles undergo no disturbance at an antinode?
- Originaltitle
- · Replies 1 ·
How Is the Momentum of a 140eV Photon Calculated?
- quicksilver123
- · Replies 9 ·
Finding the Electric field given a time varying magnetic field
- OONeo01
- · Replies 7 ·
Post-lab tension problem: verify answers to Q1 and Q2, stuck on Q3
- Habibrobert
- · Replies 1 ·
QM approximation (electron within nucleus, Griffiths 4.45b
- Saraphim
- · Replies 6 ·
Equivalence between 2 solutions
- CAF123
- · Replies 13 ·
Circular Motion: angle that the airplane makes with horizon?
- captinkareem1
- · Replies 1 ·
Finding Acceleration of Gravity for Springs Without a Given K
- Luna413
- · Replies 1 ·
Whats the best way to set up a table so it is more stable?
- Jordi1986
- · Replies 1 ·
Optics Problem: Solving for Refraction on a Spherical Surface
- thunderhadron
- · Replies 2 ·
Solving an Optics Problem: Convex Lens, Plane Mirror, and Virtual Image
- thunderhadron
- · Replies 2 ·
What is the Half-Life of a Discharged Capacitor?
- MegaDeth
- · Replies 1 ·
Creating a ramp function to filter earthquake chirp data in MATLAB
- Luongo
- · Replies 2 ·