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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Virial theorem for an inverse-square law force
- 158939444
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Deriving RPM for Object Slipping from Rotating Surface
- icanletyougo
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Cart held between two identical springs: find spring constant, frequency, and energy
- crosbykins
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Finding wire diameter given mass, resistance, and resistivity
- pkujulo2
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What Is the Magnetic Field at the Center of a Solenoid?
- kiltfish
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Calculate Electrical Energy Stored in 9V Battery (120 mAh)
- Mangastream
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Finding acceleration of 2 kg block with 1 kg block on top and friction
- physicsboy007
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How many joules are in a kilowatt-hour?
- Mangastream
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Calculating Energy and Efficiency for Heating Water in a Kettle
- chawki
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Finding Kinetic Energy of a Collision
- Loppyfoot
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Finding Current and Voltage Questions?
- Paymemoney
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How Accurate is the Calculated Current I_b Using Nodal Analysis?
- Paymemoney
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Dot and cross products for volleyball serve vectors
- Kawakaze
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Can the force of 1.50N accelerate a 0.20kg cart to a speed of 6.70m/s?
- shayaan_musta
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Spring compression to complete a loop (energy)
- etothey
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Length of the wire that is inside the magnetic field
- lilaznjewel
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The Velocity in terms of time and drag K
- solveint
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Why is alpha1 not coming out to be equal to alpha2*4 in rotational mechanics?
- Abhishekdas
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Introductory Physical Pendulum Problem
- Zipzap
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Phase constant for high pass filter
- dstdnt
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Net Work Done by an Accelerating Brick
- emmy
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Gravitational force on 2.6-kg object at Earth's surface
- Cloudy789
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I have a few questions that involve forces on a ramp
- Jacobojao
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I don't want to get scammed by the electronic store
- flyingpig
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CIRCUITS Assignment Help: Get Answers Now!
- mmmboh
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Seeing if something is Dimensionally correct.
- Sirsh
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Total kinetic energy before and after truck-car collision
- iNarb
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Train whistles; moving/stationary sound and velocity
- gmmstr827
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Finding the unit of θ in ΔT = Pθ using dimensional analysis
- fran1942
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Relationship between distance and gravitational force
- Davidjanas
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Projectile motion apple throw question
- sniper_08
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Calculate engine efficiency from fuel consumption and power output
- chawki
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Why Do We Multiply by Cos(35) to Find the X-Component of Force in Physics?
- godkills
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Finding moment of inertia and period for a physical pendulum with a ruler
- Daniiel
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How Does Tension Affect a Climbing Man on a Frictionless Ladder?
- firefly.ember
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What Causes Objects to Become Charged?
- kripkrip420
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Rates of Change in a RC Circuit
- Thefox14
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Problems about atmospheric pressur
- scientifico
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How Does Lightning Transfer Between a Tree and a Person?
- Falcons
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Average Acceleration of the object
- icanletyougo
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Rod sliding down incline with roller at one end
- Telemachus
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Calculating period of oscillation of simple harmonic motion
- Scarlet_pat
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How Does Young's Modulus Factor into Calculating Pendulum Swing Velocity?
- Abhishekdas
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Questions involving more than one voltage source
- dimpledur
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How to Clean Up Circuit Diagrams Without Contact?
- dimpledur
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Calculating E_0: Find Expression to Solve
- javak
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Find required distance of support for beam
- diadiaria
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What is the Relationship between Kepler's law and universal gravitation law?
- LukeyD
- · Replies 10 ·
Why Do We Use PSI and Pascals to Measure Pressure?
- supernova1203
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How Do You Calculate Capacitance for Different Types of Capacitors?
- mmattson07
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Currents and voltages with resistors
- runningirl
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Calculate resistance of circuit (in series and parallel)
- MathsTutor
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Pressure in water and different liquid
- Scarlet_pat
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Momentum, Impulse, and Collision #2
- Tastosis
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Projectile Motion (Angles of projection problem)
- CaptainSMASH
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What are the velocities of the two objects when they meet?
- Amuro
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Copper wire thickness for a 30mH solenoid inductor
- chemic_23
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When Does a Heat Pump Become Ineffective Based on COP?
- rvaafrica
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What is the position vector of the ball in a tennis serve?
- Kawakaze
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Calculating Charge and Current in a Region Between Concentric Conducting Spheres
- PhysicsUnderg
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What are some movies with bad physics that I can analyze for my assignment?
- GKRKarateKid
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What is the unit conversion for ML^-2T^-1?
- fran1942
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Finding position from velocity (trig function)
- tasveerk
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How Much Heat Does a Power Plant Transfer to a River Each Second?
- Runaway
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Momentum, Impulse, and Collision
- Tastosis
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Scale reading when elevator accelerates downward from rest
- chs60815
- · Replies 4 ·
How Do You Calculate the Capacitance of a Second Capacitor in Parallel?
- wushumaster
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Upthrust in water with different gravity
- Scarlet_pat
- · Replies 4 ·
Electric field of concentric insulating sphere and conducting shell
- dswatson
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Problem with 'simple' RC circuits
- lpau001
- · Replies 8 ·
Energy required to heat a house
- Runaway
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Circular motion of stone and rope
- jasonbans
- · Replies 6 ·
How Do You Calculate Tension in a String Connecting Two Masses on an Incline?
- jordanilyily
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Inelastic collision between two masses at different angles
- Physicshelper
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What is the vacuum wavelength of the incident light in nm?
- NeedsHelp1212
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Where Can the Electric Field Be Zero Between Point Charges?
- dswatson
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Finding normal force and static friction coefficient for block on ramp
- 012983
- · Replies 5 ·
Current due to Potential Difference
- ihearyourecho
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How Does Bernoulli's Principle Impact Fluid Dynamics Applications?
- jasonbans
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Calculation of the velocity uncertainty
- dba
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What Determines the Velocity and Mass of the Second Ball in a Collision?
- RIO0311
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Work in an Elevator - Find the Answer
- Jshumate
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What is the Correct Calculation for Pressure in Boyle's Ideal Gas Law Problem?
- rad10k
- · Replies 9 ·
Calculating Work on a Bucket Hanging in a Well
- mjjaques
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Finding focal length of a convex lens with a laser
- wg1337
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A chaotic orbit of a satellite around two planets question
- abejackson
- · Replies 8 ·
Calculating Current Through a Resistor Using Short Circuit Method
- dimpledur
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Quick True/False questions about acc elevator
- niravana21
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Resistance of coaxial cylinders with two materials
- PhysicsUnderg
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How does wind affect the drag force in a projectile motion problem?
- ineedhelp12
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What Causes Frequency and Amplitude Instability in Oscillating Crystals?
- AStaunton
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Conservation of energy experiment
- dba
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When to Use Sin and Cos in Projectile Motion Calculations?
- jensson
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How Does Friction Affect the Motion of a Uniform Rod Released at an Angle?
- Telemachus
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How do I find the gauge pressure?
- jle1092
- · Replies 1 ·
Circular Motion Question (Possibly Easy?)
- BlakeGriffin
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Why does a motor produce a counter emf?
- pokeefer
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Finding maximum height of projectile shot upward with varying gravity
- Oldblood
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Will a football clear a 3m bar 20m away?
- HelpRequired
- · Replies 4 ·
Ramp Question: Calculating Energy Lost and Friction Coeff.
- stphillips
- · Replies 1 ·