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 Object-Lens Distance for Diverging Lens Optics
- slaw155
- · Replies 2 ·
Solving Sun Intensity Problem: 685W/m^2 in 6.5 Days
- slaw155
- · Replies 2 ·
Resolving Vector Along Non-Standard Axes
- srg
- · Replies 3 ·
Diffrraction of electron experiment to be observable
- desmond iking
- · Replies 1 ·
Heat Pump Power and COP: How Does Temperature Affect Efficiency?
- Effect
- · Replies 1 ·
What is the decibel level of a sound at 4% intensity of a 95dB sound?
- slaw155
- · Replies 2 ·
Find the electric field magnitude in each region.
- Joa Boaz
- · Replies 1 ·
How Do You Calculate Maximum Height and Range of a Projectile?
- ArmadylGS
- · Replies 1 ·
Finding rope sag and angle for a zip line safety factor problem
- Jae
- · Replies 7 ·
Support reactions for a frame with two force member
- x86
- · Replies 7 ·
Ball thrown vertically on Mars with initial speed 39.2 m/s
- wonchristy
- · Replies 9 ·
High Diver: Calculating Initial and Final Velocities
- laurenbell
- · Replies 1 ·
Two positive point charges q1 and q2 are separated by a distance d.
- Joa Boaz
- · Replies 6 ·
The electric potential is defined by the function v(x,y,z) =
- Joa Boaz
- · Replies 1 ·
Electric Fields: Thin wire in conducting cylinder
- wannabee_engi
- · Replies 3 ·
Calculating total mechanical energy of block on spring
- blintaro
- · Replies 8 ·
Frictional force problem(box sliding down between two walls)
- Kararr
- · Replies 4 ·
Potential energy turned into kinetic
- cragar
- · Replies 3 ·
AC circuit - voltage drop and resonance
- Rugile
- · Replies 20 ·
Plane in a vertical loop and gravity
- Karol
- · Replies 2 ·
Two Blocks and a pulley (Equation derivation)
- Jayy962
- · Replies 3 ·
What is the weight of the sled being pulled up a ramp by a girl?
- Statik
- · Replies 1 ·
Two Blocks attached by a string, on an incline
- stripedcat
- · Replies 5 ·
What Is the Maximum Force on the Upper Block to Prevent Slipping?
- Born
- · Replies 2 ·
Determining Angle with Vector Components
- srg
- · Replies 3 ·
Question on circular motion involving astronauts and g force?
- Tangeton
- · Replies 3 ·
Pressure, temp, volume change of water vapor, and steam table clarity
- wmgabe74
- · Replies 5 ·
Rocket accelerating up an incline
- redworld33
- · Replies 7 ·
Finding kinetic energy of electron with 40 GeV/c momentum
- Mangoes
- · Replies 7 ·
Find the velocity of the electrons at the end of the plates
- oldspice1212
- · Replies 9 ·
Thermodynamics of heating water in a cylinder with piston
- yy205001
- · Replies 6 ·
Vector Question -- |A+B| is 78 times greater than |A-B|
- smakhtar
- · Replies 6 ·
Projectile question -- ball rolling on a chair
- AdoobII
- · Replies 8 ·
How is the expression for V(x) plotted using singularity functions?
- princejan7
- · Replies 3 ·
What is the Dilatation of a Cube Under Extreme Pressure?
- Nexttime35
- · Replies 9 ·
How Do Frictional Forces Affect a Skier's Acceleration?
- higgsbosom
- · Replies 4 ·
Maximum Speed to Avoid Barrier with Delayed Braking
- CyberSyringe
- · Replies 5 ·
Takeoff distance for airplane with twice the required speed
- penguins
- · Replies 4 ·
Projectile Motion of a Baseball at Bat
- brita
- · Replies 6 ·
What Is the Correct Mass of Block 2 in a Frictionless System?
- bradsmith
- · Replies 9 ·
Why Does 1/2mγv^2 Fail to Accurately Calculate Relativistic Kinetic Energy?
- Ascendant78
- · Replies 5 ·
D/C Circuit with one current and voltage source
- Mangoes
- · Replies 6 ·
Will a motorcycle jump 10.5m across a river at 30°?
- thegreengineer
- · Replies 2 ·
Classical Mechanics - Tranformations
- teme92
- · Replies 13 ·
Find the critical rotation rate
- Milotoadfoot
- · Replies 7 ·
Calculating blood pressure increase with Poiseuille's equation
- FenderFan54
- · Replies 1 ·
What happens to the force acting on the elbow with a straight bicep?
- fishes
- · Replies 10 ·
Finding the angle when two rods hinged together hang in equilibrium
- nazz
- · Replies 3 ·
What is the Equation for Finding Vector Magnitude in 2D and 3D?
- needsphysics
- · Replies 4 ·
Launch Angle for Maximum Field Goal Clearance
- RNelli22
- · Replies 2 ·
Direction of normal acceleration problems
- yugeci
- · Replies 5 ·
How Does a Pump Calculate Work When Transitioning from Water to Air Underwater?
- kihel
- · Replies 2 ·
Relating Kinetic Energies and Masses of Two Objects
- B3NR4Y
- · Replies 5 ·
Finding velocity with friction?
- dba80
- · Replies 5 ·
Why Is Power Factor Not Included in Series LCR Circuit Calculations?
- Prashasti
- · Replies 3 ·
Highest possible efficiency of an engine
- Effect
- · Replies 2 ·
Proportional error for Atwood's machine lab
- atir.besho
- · Replies 1 ·
How Do You Calculate the Initial Velocity of a Juggling Ball?
- c.kal
- · Replies 3 ·
Truck uniformly slowing down: finding initial speed and acceleration
- lethalfresa
- · Replies 1 ·
Does friction keep rotor ride passengers on the wall at 33 RPM?
- Milotoadfoot
- · Replies 2 ·
Finding the E due to a non-uniform surface charge distribution in 3D
- Shostakovich
- · Replies 3 ·
Special Relativity - Angle Transformations
- Rubber Ducky
- · Replies 1 ·
What Is the Wind Velocity Affecting the Light Plane's Course?
- dfcitykid
- · Replies 5 ·
Finding spring constant k when arrow travels 300 m after 20 cm drawback
- aatgomez
- · Replies 9 ·
What is the relationship between electric potential and electric field?
- mathguy831
- · Replies 5 ·
Speed of the air of a hovering helicopter
- nowayn
- · Replies 1 ·
How Is Average Acceleration Calculated for a Point on the Equator Over Time?
- tayyabah1415
- · Replies 4 ·
How to graph velocity where there is a change in acceleration
- Kerrie yu
- · Replies 11 ·
Extrapolating the Quality factor for decay in amplitudes
- PhysicsKid0123
- · Replies 3 ·
Statics/Equilibrium Physics question-- Two weights and a single pulley
- zubb999
- · Replies 3 ·
Solving Lorentz Transform problem using only length contraction
- Tubefox
- · Replies 8 ·
Smartphone and the type of wave?
- Betadine
- · Replies 6 ·
Distance shifted by the centre of pattern
- desmond iking
- · Replies 18 ·
Coefficient of static friction experiment
- physicshelpppp
- · Replies 6 ·
Can You Calculate Individual Energy Absorption in a Partially Plastic Collision?
- Karol
- · Replies 9 ·
What is the angular velocity that the rod will rotate
- MMS
- · Replies 27 ·
How Does Balloon Motion Impact Stone's Fall Time?
- kerol9904
- · Replies 4 ·
Normal derivative of vector potential discontinuity
- physiks
- · Replies 11 ·
What is the Average Velocity of a Ship and the Velocity of the River Current?
- kerol9904
- · Replies 4 ·
Finding net displacement for sailboat tacking against wind
- kaylaannreilly
- · Replies 4 ·
Work as Change in Kinetic Energy vs Change in PE
- Hereformore
- · Replies 3 ·
Find the charge density inside a solid insulating sphere?
- hockey
- · Replies 2 ·
Centripetal Acceleration along a curve
- rexorsist
- · Replies 6 ·
Tension between two sliding blocks
- END
- · Replies 1 ·
Mechanics: Acceleration in Pulley System
- END
- · Replies 1 ·
Finding Initial Speed Given Range
- reigner617
- · Replies 6 ·
Why is acceleration not constant on an a-t graph?
- SunakoNakahara
- · Replies 2 ·
Show that the Time-Avg Power is proportional to 1+cos(delta)
- EnlightenedOne
- · Replies 11 ·
How to find angle of launcher in order to hit target?
- LexRunner
- · Replies 4 ·
Decreasing the mass of a particle going through a Velocity Selector
- Hereformore
- · Replies 1 ·
Find the electric field at a point outside of an insulating sphere?
- hockey
- · Replies 1 ·
Hydrostatic force on submerged rectangle
- Urmi Roy
- · Replies 17 ·
How can I find the electric field above an infinite sheet?
- hockey
- · Replies 1 ·
Differential equation that describes the voltage with respect to time
- DustyGeneral
- · Replies 1 ·
[Long Post] Different batteries - lamp problem
- Rectifier
- · Replies 8 ·
First order minimum - Wave interference
- Maddie1609
- · Replies 1 ·
The Bouncing Ball Lab- Loss of Energy
- prestonubc22
- · Replies 3 ·
Using Newton's laws to find an expression for the angle of inclination
- taotao
- · Replies 8 ·
Would we see the planets move across the sky if Earth stops spinning
- kirsten_2009
- · Replies 7 ·
Centripetal Acceleration/Gravity Problem
- Drokro0707
- · Replies 1 ·