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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Obtain the resistance of a ntc thermistor
- Sparky2020
- · Replies 3 ·
Understanding Conservation of Energy in Rollercoasters
- runicle
- · Replies 6 ·
Calculating Work Done by Air Resistance on a Thrown Ball
- Elysium
- · Replies 1 ·
Fluids Problem: Calculating Oil Layer Depth for Floating Soap Bar
- ahh86
- · Replies 3 ·
Magnetic field of solenoid 77.1 cm with 340 turns
- lw11011
- · Replies 5 ·
Calculating Earth's Core Current: 6.2E8 A
- mr_coffee
- · Replies 3 ·
What is the angle between the string and the vertical?
- BrimmZERO
- · Replies 3 ·
Kinetic Pressure: Explanation and Questions
- Kenny Lee
- · Replies 2 ·
How Do Length Errors Propagate Through Different Operations?
- Pixter
- · Replies 2 ·
Does Kleppner and Kolenkow mechanics have a solutions manual?
- anand
- · Replies 1 ·
How much mechanical energy is lost in a car-truck collision?
- AdnamaLeigh
- · Replies 3 ·
Calculate Work to Position 150kg Satellite into Geostationary Orbit
- UnD
- · Replies 4 ·
Understanding Pressure: Effects on a Helium-Filled Balloon in a Stopped Car
- jakeowens
- · Replies 1 ·
Physics Problem: Flight Attendant and 70N Bag
- XxClueLess5xX
- · Replies 1 ·
How does angle help find electric force from mass and gravity?
- daewoo
- · Replies 1 ·
Does it matter how many turns it makes for dingint he moment and torque?
- mr_coffee
- · Replies 3 ·
Demonstration dips his wettened fingers into molten lead
- thenewbosco
- · Replies 2 ·
How Is the Average Resistance Force Calculated for a Diver Entering Water?
- johny_doe
- · Replies 1 ·
Calculating Maximum Kinetic Energy from Potential Energy
- amcavoy
- · Replies 6 ·
Vertical circle, miminum radius
- sunnyorange
- · Replies 2 ·
What Happens to Voltage in an Electric Circuit?
- Erwin Schrodinger
- · Replies 3 ·
What is the magnitude of the torque acting on the loop? T = IAB
- mr_coffee
- · Replies 2 ·
Solving the Acceleration of a Charged Particle
- Tcat
- · Replies 4 ·
Moment of Inertia Calculation for Conic Disc with Hole in Center
- CBrandi
- · Replies 1 ·
Solving Elevator Question: 50kg = 300N
- gr3g1
- · Replies 11 ·
Finding a Science Project: 11th Grade Physics Edition
- psychofairy013
- · Replies 1 ·
Difference between Generator and Alternator
- Shameel
- · Replies 3 ·
Kinetic energy, work pirnciple. (?)
- heelp
- · Replies 2 ·
How Do You Calculate Current Through a Resistor in a Parallel Circuit?
- QueenFisher
- · Replies 3 ·
Is a 1A Current to the Right Equivalent to -1A to the Left?
- QueenFisher
- · Replies 3 ·
Angular acceleration of a skater
- brad sue
- · Replies 3 ·
How is the Range of a Projectile on an Inclined Plane Derived?
- zanazzi78
- · Replies 6 ·
Finding tensions T1 and T2 in a three-mass system
- rafael_josem
- · Replies 3 ·
Is there a physical interpretation of unbounded oscillations in RLC circuits?
- Benny
- · Replies 1 ·
Why is a pendulum's potential energy mgcosθ/2l?
- fridsatu
- · Replies 1 ·
What Can a Force-Displacement Graph Tell You About an Object's Properties?
- Herman Cheung
- · Replies 1 ·
Projectile Motion on Earth and the Moon: Calculating Distance and Acceleration
- PreciousJade
- · Replies 5 ·
Solving an Automobile Cooling System Question: 18L to kg Conversion
- Ryan231
- · Replies 4 ·
Grade 12 physics - one mass on incline and other hanging
- an_mui
- · Replies 6 ·
Converting moment of inertia from g·cm² to kg·m²
- azure.hubris
- · Replies 4 ·
Solve the Black Mamba Physics Problem and Ace Your Physics Midterm!
- Groovy_Duck
- · Replies 6 ·
Will the Car Stop in Time to Avoid Hitting the Child in the School Zone?
- rafael_josem
- · Replies 3 ·
Is the Work Done by Gravity Calculated Incorrectly?
- suspenc3
- · Replies 19 ·
Ballistic pendulum with bullet passing through block
- lando45
- · Replies 7 ·
Finding impulse from a force vs time graph of a soccer ball kick
- Punchlinegirl
- · Replies 9 ·
Arrow through spinning wheel with spokes and rotating drum problems
- Skyline
- · Replies 1 ·
What Is the Left Turning Point of a Particle in a Conservative Force Field?
- physixnot4me
- · Replies 1 ·
Solving Trajectory Problem: Castle Wall Cannonball
- acpyrus
- · Replies 4 ·
Grade 12 Physics - mass on an inclined plane (different question)
- an_mui
- · Replies 2 ·
Rotational inertia of a spool pulled by a string
- brad sue
- · Replies 6 ·
Two methods to measure gravity without a pendulum
- UnD
- · Replies 7 ·
How can I find the value of phi in a simple harmonic motion equation?
- ice87
- · Replies 3 ·
Water length and mercury rise in U-tube with different cross sections
- thenewbosco
- · Replies 5 ·
Understanding Circular Motion: Inferences from Constant Speed and Direction
- Jacobpm64
- · Replies 2 ·
Calculate Work on 8kg Block: Kinetic Energy Method
- ledhead86
- · Replies 4 ·
Canoe Movement Calculations: 45kg Woman in a 60kg Canoe
- marialo
- · Replies 1 ·
Groundspeed of Plane in 10km/h Headwind: 90km/h
- Jacobpm64
- · Replies 2 ·
Finding Average Power: Elevator Acceleration and Cruising Speed Calculation
- johny_doe
- · Replies 2 ·
What does a scale read in an elevator at rest?
- Jedi
- · Replies 3 ·
But what happens when the object is on an inclined surface?
- frigid
- · Replies 3 ·
How High Does Block M1 Rise After an Elastic Collision on a Frictionless Track?
- physixnot4me
- · Replies 1 ·
How Is the Internal Energy of Helium Calculated in an Ideal Gas Scenario?
- jdog6
- · Replies 1 ·
How Far Will a Bullet Travel When a Block Is Free to Slide?
- dowjonez
- · Replies 1 ·
Finding speed of a 2.0 kg disc rotating in a 0.90 m circle with 210 N force
- heelp
- · Replies 2 ·
Calculating Centripetal Force? (car moving in circle on a sloped road)
- plat4m6
- · Replies 4 ·
Why does vertical component of normal force
- boris16
- · Replies 5 ·
Mechanics-related car question
- lando45
- · Replies 3 ·
Kinetic Friction: Stopping a 2500kg Car on Icy Road
- cowasocke
- · Replies 1 ·
How Many Stair Climbs to Burn 500 Calories?
- chris22
- · Replies 1 ·
Does stretching a spring warm it up and change its spring constant?
- dfx
- · Replies 1 ·
Block and Wedge (all frictionless)
- RoKe
- · Replies 3 ·
Solve Gravitational Field Problems: Earth Satellite
- F.B
- · Replies 2 ·
How to Determine the Woman's Mass in a Constantly Accelerating Elevator?
- ledhead86
- · Replies 7 ·
Calculating the top speed of a train (almost there)
- Diresu
- · Replies 5 ·
Which equation do I use to find time to a certain speed?
- Diresu
- · Replies 1 ·
What is the energy lost to friction?
- Kumar9
- · Replies 4 ·
Question on kinetic energy transferred by a bow
- eosphorus
- · Replies 1 ·
Finding Kinetic Energy of an Electron with 100keV X-Ray Wavelength
- asdf1
- · Replies 4 ·
Solving Projectile Motion: What Step Does Ball Hit First?
- suspenc3
- · Replies 2 ·
CCD image processing - Astronomy
- big man
- · Replies 2 ·
Non uniform circular motion and friction
- newcool
- · Replies 9 ·
How Does the Temperature of a Body in Space Change Over Time?
- sid_galt
- · Replies 7 ·
Three spheres colliding and sticking at the origin
- marialo
- · Replies 2 ·
The Acceleration Due To Gravity
- Snake
- · Replies 3 ·
Surface gravity on a neutron star and gravity at altitude
- heelp
- · Replies 4 ·
Uniform circular motion (I DON'T KNOW)
- heelp
- · Replies 6 ·
Projectile and conservation of motion
- hoseA
- · Replies 2 ·
Calculating Work and Friction in a Horizontal Surface: A Practical Example
- johny_doe
- · Replies 3 ·
Calculating Horsepower and Power Formula for 1000Kg Auto on 3% Grade at 20m/s
- SS2006
- · Replies 1 ·
Calculating Final Speed of a Sliding Block of Ice on an Inclined Plane
- ledhead86
- · Replies 4 ·
Collision with spring release between two blocks
- joker_900
- · Replies 3 ·
How Many Flights of Stairs to Burn 500 Calories?
- chris22
- · Replies 1 ·
Solving Cancer Tumours w/ High Energy Ions
- acpyrus
- · Replies 1 ·
Finding Equal Force Distance from Moon
- sony
- · Replies 9 ·
File cabinet sliding in truck bed during braking
- acpyrus
- · Replies 4 ·
Two ice skaters push off: why doesn't the mass ratio equal the distance ratio?
- PhunWithPhysics
- · Replies 8 ·
Kinetic Theory Of Temperature Problem
- Iscariot
- · Replies 2 ·
Finding distance and average speed for multi-segment car trip
- snowbelle
- · Replies 4 ·
Earth-moon center of mass and pool ball collision angles
- Punchlinegirl
- · Replies 8 ·