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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Angular Velocity and Acceleration Problem
- iwonde
- · Replies 2 ·
What is the Kinetic Energy and Velocity of a Falling Asteroid?
- clope023
- · Replies 10 ·
Root mean square velocity of CO2 molecules
- Plasma
- · Replies 2 ·
Finding RC time constant from oscilloscope trace
- thatgirlyouknow
- · Replies 3 ·
Will a spinning marble stay level in a vertical steel tube?
- Nightrider55
- · Replies 7 ·
How Much Force Is Needed for One Million Atmospheres with Diamond Tip Presses?
- JWHooper
- · Replies 3 ·
Kirchhoff's Laws and current through resistors
- Vashti
- · Replies 1 ·
Finding the charges on surfaces (hollow spheres)
- rela
- · Replies 1 ·
How Fast Was the Ball Going When It Left the Incline?
- kofmelk
- · Replies 1 ·
How Does the Normal Force Affect Dynamics in Different Frames of Reference?
- radagast_
- · Replies 4 ·
Force and Impulse physics problem
- Mandy89
- · Replies 6 ·
Finding the electric force on each sphere
- rela
- · Replies 1 ·
Spring force constant from collision with maximum compression
- PhysicsOPhun
- · Replies 5 ·
Why Does Current Density Yield Different Results in Two Scenarios?
- Destrio
- · Replies 2 ·
Calculating Force Constant in a Spring Collision
- PhysicsOPhun
- · Replies 4 ·
Space shuttle thrust and seat force at liftoff with 0.60g acceleration
- thebest100
- · Replies 3 ·
Finding the angle a bullet was fired if it hits the ground in 3 seconds
- Physics08
- · Replies 7 ·
Is the Work Done by the Electric Field Positive, Negative, or Zero?
- skwz
- · Replies 1 ·
How Do You Calculate Current and Voltage in a Complex Circuit Diagram?
- kazekko
- · Replies 2 ·
What are the Kinematics of a Car Plunging off the Grand Canyon Edge?
- Below
- · Replies 5 ·
Motion problem with two rocks being released at different times
- mjolnir80
- · Replies 2 ·
Resultant Force for circular motion on a banked track
- dumdum000333
- · Replies 2 ·
Calculating Absolute and Gauge Pressure in a Gasoline-Filled Container
- JWHooper
- · Replies 4 ·
Finding the equivalent resistance b/w a and b
- lgmavs41
- · Replies 2 ·
Finding internal resistance with parallel resistors and total current
- nokia8650
- · Replies 1 ·
How do electric flux and radius affect each other in a Gaussian sphere?
- jmarko10
- · Replies 4 ·
Field strength and energy of electrons in a magnetron
- mrroboto
- · Replies 1 ·
Uncertainity and Error Question
- inno87
- · Replies 1 ·
Spring force on wheel assembly with 50 m/s² acceleration
- donorcard
- · Replies 1 ·
How Fast Must the Magnetic Field Change to Induce a 3.4 A Current in a Coil?
- BuBbLeS01
- · Replies 32 ·
Calculating Velocity Using Work and Friction
- rsala
- · Replies 4 ·
Finding the Momentums of Two Cars in a System
- kdizzle711
- · Replies 4 ·
Conservation of Angular Momentum of Turntable
- XxBollWeevilx
- · Replies 2 ·
The heat capacity of an ideal gas.
- corr0105
- · Replies 2 ·
Magnitude of final velocity. Due today
- kdizzle711
- · Replies 1 ·
Finding spring compression for block to reach 2.3 m/s after friction patch
- PhysicsOPhun
- · Replies 1 ·
Finding wavelength and frequency from a ripple tank wave at 6 cm/s
- x-little-reme
- · Replies 3 ·
If a particle and a system have zero momentum
- DJW
- · Replies 1 ·
Speed of heavier fragment after rocket explosion at 2.0 s
- kramerbaggins
- · Replies 3 ·
What Happens to Kinetic Energy During Latent Heat of Fusion?
- ghazni
- · Replies 2 ·
Calculating Work and Friction on a Crate on an Incline
- Sheneron
- · Replies 3 ·
How Does Temperature Affect the Viscosity of Milk?
- mibson
- · Replies 1 ·
Finding luminous intensity from illumination at 30m distance
- Mastagamer
- · Replies 1 ·
Can you find instantaneous velocity at two points and average them?
- OrbitalPower
- · Replies 1 ·
Why does adding a quantum to N oscillators increase microstates by 1+N/Q?
- karnten07
- · Replies 3 ·
Integrating: mg/b(1 - e^(-bt/m)
- jmwachtel
- · Replies 17 ·
How Does Muscle Size Influence Lifting Capacity?
- Goldenwind
- · Replies 1 ·
Why Does a Car Run Off the Road When Going Too Fast on a Curve?
- physicsdude12
- · Replies 2 ·
Finding Velocity of Positive ion with Volts given.
- dkr1207
- · Replies 4 ·
What is the magnitude of the force between the two charges?
- yo_man
- · Replies 1 ·
Will the Thrown Ball Overtake the Falling Flowerpot?
- MuchJokes
- · Replies 8 ·
Heads occurs 15 times out of 20 - Is it a fair coin?
- phono
- · Replies 3 ·
Converting focal length from cm-1 to cm for a concave mirror
- zuzu23
- · Replies 4 ·
How Much Lead Is Needed to Sink a Floating Log?
- moniquert
- · Replies 11 ·
Does gravity work in the opposite direction when moving down on a ferris wheel?
- jj8890
- · Replies 1 ·
Impulse on basketball bouncing at 64° from vertical
- creative_wind
- · Replies 1 ·
How Does Gauss's Law Apply to Electric Fields at Points P2 and P3?
- jesuslovesu
- · Replies 5 ·
Introduction to Thermodynamics - Two Basic Problems
- decatte
- · Replies 3 ·
How Do You Find the Zero Electric Field Point Between Two Charged Particles?
- physicsbhelp
- · Replies 33 ·
Work on an object moving in a circle.
- jj8890
- · Replies 7 ·
Finnding greates common denoinator
- Physics_MHS
- · Replies 1 ·
Work and instantaneous power for an accelerating object
- AnkhUNC
- · Replies 6 ·
What is the potential difference between points a and b?
- max1205
- · Replies 4 ·
Angular Acceleration, Max/Min, and Grav. Attraction
- the7joker7
- · Replies 4 ·
Ball rolling down ramp collides with second ball at bottom
- speckledot
- · Replies 6 ·
What is the value of gravity in free-fall and two-dimensional kinematics?
- Below
- · Replies 1 ·
Vector Addition: Solving for Magnitude of B in C+B=7i+5j
- jaciel2001cas
- · Replies 4 ·
Stone thrown downward from 165m building: distance in 4th second
- Below
- · Replies 8 ·
Please check if I did it right?
- yaho8888
- · Replies 1 ·
Relating solar energy area to power/time?
- Tineras
- · Replies 1 ·
Police Car Siren Frequency and Wavelengths
- ~christina~
- · Replies 6 ·
Maximum incident angle for total internal reflection in a glass prism (n=1.47)
- xinlan
- · Replies 5 ·
Electric potential - Is the teacher wrong?
- tony873004
- · Replies 15 ·
Finding electric potential from a rod with nonuniform charge density λ = ax
- jesuslovesu
- · Replies 1 ·
Drawing Kinematic Graphs for Negatively Accelerating Velocity-Time
- dranseth
- · Replies 4 ·
Conservation of Energy max height
- soul5
- · Replies 5 ·
Finding potential at center of charged annulus with σ = k/r³
- Destrio
- · Replies 20 ·
Determine distance traveled up an incline w/ friction
- Cbookman
- · Replies 8 ·
How Does Bubble Size Change with Depth in Fluid Mechanics?
- cat_eyes
- · Replies 1 ·
Newton's Laws of Motion on an airplane
- torresmido
- · Replies 3 ·
Final speeds of air hockey pucks after oblique collision
- skier07
- · Replies 1 ·
Average current from a charge q rotating on an insulating string
- eagleswings
- · Replies 4 ·
Calculating Magnetic Flux in a Bent Square Loop with a Uniform Magnetic Field
- BuBbLeS01
- · Replies 1 ·
Moment of inertia of a flywheel
- Arejang
- · Replies 7 ·
How Does Water Pressure Vary in Different Shaped Tanks?
- p0ink
- · Replies 14 ·
Finding kinetic energy and speed for a 0.600 kg particle
- Sheneron
- · Replies 3 ·
Calculate Current Through Battery Connected to Resistor
- katiemc124
- · Replies 2 ·
Solving Kinematics Problem: Who Wins the Race?
- undefinable
- · Replies 3 ·
Finding R1 and R2 in a series circuit with current changes
- Sino87
- · Replies 1 ·
Calculating Magnetic Flux in a Solenoid-Loop System with Varying Angles
- BuBbLeS01
- · Replies 3 ·
Why does more ice melt in larger volumes of water?
- dumb__x
- · Replies 4 ·
Solve Satellite Problem: Find Speed at Maximum Height
- yasar1967
- · Replies 1 ·
What is the work done on a bucket hanging in a well?
- enian
- · Replies 2 ·
What Is the Minimum Height for a Block to Complete a Frictionless Loop?
- nightshade123
- · Replies 8 ·
Calculating Proton Speed: 120V Potential Difference
- Gear300
- · Replies 1 ·
How do I convert solar wind proton density to get current density?
- flash525
- · Replies 2 ·
Calculating Current in Resistor of Magnetic Flux Circuit (V=18V, R=30Ω)
- BuBbLeS01
- · Replies 2 ·
Direction of Induced Current for A Moving Loop of Wire
- JasonBourneV
- · Replies 2 ·
What Are the Quantum Numbers for a 3d State in Hydrogen?
- giffary
- · Replies 3 ·
Finding the value of the coefficient of elasticity for a 1D collision.
- Lemansky
- · Replies 1 ·