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 Long Will the Uranium Supply Last?
- proudtobeavol
- · Replies 1 ·
Calculating Gravitational Force Between Two Objects
- squiffy
- · Replies 29 ·
3 identical springs hanging from ceiling
- FlipStyle1308
- · Replies 7 ·
Solid disk rolling up a hill problem
- FlipStyle1308
- · Replies 28 ·
Definition of radius of sight optics
- Werg22
- · Replies 5 ·
Effective gravity at Earth's equator due to rotation
- auslander
- · Replies 10 ·
Calculating Friction Force on 18.8kg Box on 38° Incline
- p0ink
- · Replies 1 ·
Calculating Mass and Weight of a Planet
- whereisccguys
- · Replies 2 ·
Vertical spring energy transformation
- plutonium
- · Replies 3 ·
AP Test Problems: Solutions and Checks for Fatty Packet Questions
- aceXstudent
- · Replies 3 ·
Tension and friction with 10kg, 5kg and 3kg blocks over a pulley
- aiglosicicle
- · Replies 5 ·
How Do You Calculate the Mass of a Cart in a Momentum Problem?
- helen3743
- · Replies 4 ·
Which statements about mean free path are correct
- lando45
- · Replies 1 ·
Why Are Initial Conditions x(0) and v(0) Preferred Over a(0) in ODE Solutions?
- littleHilbert
- · Replies 1 ·
Horribily Interesting Measurement Qns
- Delzac
- · Replies 3 ·
Relationship between velcity, wavelength, and frequency
- Dunkaroos
- · Replies 8 ·
Rolling with and without slipping
- Benny
- · Replies 6 ·
Will Changing the Air Column Length in a Pipe Create Resonance in Helium?
- jimmy_neutron
- · Replies 5 ·
What Is the Total Stretch When Two Springs Are Combined?
- srebman
- · Replies 3 ·
Identifying Unknowns in a circuit
- katier885
- · Replies 1 ·
Sound wave spreading radially question
- nophun6
- · Replies 3 ·
Solving the Pressure Change in a Gas Experiment
- Richay
- · Replies 5 ·
Linear RPM vs Time = ? Horsepower
- Sentient
- · Replies 6 ·
Treating parallel electromagnets as current carrying wires.
- daffodildo
- · Replies 6 ·
What is the output of a photodiodes?
- the Physic freak
- · Replies 6 ·
How Do You Calculate Object Fall Times with Air and Water Resistance?
- Sterigo
- · Replies 13 ·
Whats the characteristics of a photodiode?
- mindagap
- · Replies 4 ·
Are Seatbelts a Danger to Safety?
- WhiteShadows
- · Replies 6 ·
Can the Coefficient of Expansion Be Expressed in Both Kelvin and Celsius?
- flower76
- · Replies 3 ·
What is the Derivation for Pressure at the Centre of a Star?
- Brewer
- · Replies 2 ·
Find tension of a string on the ceiling of an elevator
- bavenger
- · Replies 10 ·
Need tutorial of interference between two waves
- mohlam12
- · Replies 1 ·
Five homework problems on heat and energy from a physics test
- danago
- · Replies 10 ·
Is the Solution to the Equivalent Impedance Problem Correct?
- ness9660
- · Replies 1 ·
How Does Velocity Magnitude Affect Circular Motion?
- allok
- · Replies 8 ·
Metal bolt calorimetry problem: why initial temperature is positive
- shulien
- · Replies 2 ·
Solve for Displacement in Harmonic Oscillator
- flower76
- · Replies 3 ·
What are the resonance heights for a tuning fork and resonance tube experiment?
- endeavor
- · Replies 4 ·
Compass needle remanence and airgap effects on transformer AC performance
- copresh1
- · Replies 19 ·
Can voltages across L and C exceed the source voltage in an AC circuit?
- Reshma
- · Replies 5 ·
Young Experiment: Why is Central Fringe Always Bright?
- gvntr52
- · Replies 1 ·
Pedestrian Accident at Traffic Crossing: Witness Testimony and Accident Analysis
- jadzia49
- · Replies 1 ·
Electrical field at the center of a hemisphere
- silversound
- · Replies 2 ·
Centre of mass of square with folded corner
- dirac1
- · Replies 4 ·
Apparent Magnitude of Sun at 8000 Parsecs from Galactic Center
- Toad
- · Replies 1 ·
Finding the mass of stars that evolved away.
- Toad
- · Replies 5 ·
Calculating wavelengths of photons / photospheric temperatures
- Toad
- · Replies 3 ·
Finding velocity for length contraction of 82 light year distance
- jrd007
- · Replies 6 ·
What is the uncertainty in its mass?
- jrd007
- · Replies 11 ·
Calculate AC Circuit Power: Toaster 3A, 240V, 50Hz
- frozen7
- · Replies 3 ·
Solving Quantum Questions with Bohr's Theory
- capslock
- · Replies 1 ·
Voltage Ambiguity: Alternating Currents HW
- recon
- · Replies 1 ·
Spacecraft Traveling Past Space Station: Length and Radio Signal Timing
- catalyst55
- · Replies 2 ·
What is the Impact Angle Equation for Colliding Objects at an Angle?
- JenadaeX
- · Replies 4 ·
Calculating Initial Velocity of Object Connected to Wall by Spring
- plutonium
- · Replies 10 ·
Plane landing on barge (momentum)
- plutonium
- · Replies 4 ·
Will a Compressive Force Bend a Bimetallic Rod Toward Brass or Copper?
- spl1017
- · Replies 1 ·
What is the average power in accelerating this car
- Groovy_Duck
- · Replies 2 ·
What Is the Prism Made Of Given Its Apex Angle and Minimum Deviation?
- skull
- · Replies 2 ·
How Steep a Hill Can You Park a Car With Static Friction of 0.8?
- Havoc2020
- · Replies 3 ·
How does a wave move along a rope?
- Dunkaroos
- · Replies 13 ·
Calculating Horsepower/Torque from Acceleration/Mass
- Sentient
- · Replies 4 ·
Easy rotational motion question?
- kudos213
- · Replies 5 ·
Estimate Spring and Damping Constants of 1700kg Automobile
- mb85
- · Replies 1 ·
Calculate Force F at Point B for Slider along Guide
- danielI
- · Replies 2 ·
Two boats exchanging a parcel: find initial speeds v1 and v2
- Michael Kantor
- · Replies 10 ·
How Can the Linear Density be Determined Experimentally in Melde's Lab?
- NIZBIT
- · Replies 2 ·
Calculating Decay Lifetime of Unstable Isotope
- square_imp
- · Replies 3 ·
Beat frequency from two open pipes at different temperatures
- BooGTS
- · Replies 3 ·
How Do You Calculate the Change in Momentum of a Billiard Ball?
- ctlpsl
- · Replies 5 ·
Calculating the age of a radioactive source
- lando45
- · Replies 9 ·
Confusion regarding sin and cos
- ness9660
- · Replies 3 ·
Shopping cart momentum change and beam torque problems
- God64bit
- · Replies 1 ·
How Deep Must a Steel Ball Sink in Oil to Reach Velocity v?
- danielI
- · Replies 1 ·
Determining the Speed of a Car from Skid MarksHow fast was the car going?
- BooGTS
- · Replies 2 ·
Understanding Capacitance: Answers to Common Questions Explained
- Noesis
- · Replies 3 ·
Ideal gas pressure to net force
- VonWeber
- · Replies 3 ·
How Do I Calculate Time to Lift an Object with Given Force, Mass, and Height?
- Lloydsgurl
- · Replies 8 ·
How to Calculate Acceleration of a Proton in a Magnetic Field
- tmth
- · Replies 4 ·
Calculating Final Velocity with Acceleration and Normal Force
- oooo
- · Replies 12 ·
Very simple high school phisics question
- God64bit
- · Replies 3 ·
Plotting Resolution Against Lux in Excel
- alex_boothby
- · Replies 2 ·
How Does Current Flow in a Circuit According to Kirchhoff's Law?
- app
- · Replies 6 ·
Why does a dropped weight slow down a trolley if there's no net force?
- pkc111
- · Replies 35 ·
Differential equation- (haven't had any courses on diff. equations yet
- Lisa...
- · Replies 14 ·
Solving a Heat/Energy Problem: Final Temp of Steam
- PHYclueless
- · Replies 3 ·
Calculating Wave Velocity with Frequency and Amplitude
- lightfire22000
- · Replies 4 ·
Magnetic Flux and Pole Definition
- gvntr52
- · Replies 2 ·
Why are radio waves diffracted more than light waves around buildings?
- brad sue
- · Replies 1 ·
What is the Power Output of a Bird's Song?
- PHYclueless
- · Replies 5 ·
Electric force distance problem
- Punchlinegirl
- · Replies 13 ·
Example Physics 11 questions for electrician career prep
- JasonH
- · Replies 7 ·
F=ma, what is m actually means?
- hongkongrubbish
- · Replies 7 ·
Velocity of the water flowing through the pipe
- Struggling
- · Replies 14 ·
The Strong Nuclear Force: Increasing with Distance?
- Atomos
- · Replies 4 ·
Sweet spot for elastic collision with a rod
- syang9
- · Replies 2 ·
How Does Changing Tension Affect Standing Wave Patterns and Antinode Formation?
- nophun6
- · Replies 3 ·