Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Vertical intercept of an Acceleration Force Graph
- AnomalyCoder
- · Replies 2 ·
How Does Special Relativity Affect Exam Time and Signal Transmission?
- Lavabug
- · Replies 6 ·
Grade 11 musical instrument project
- ta4294
- · Replies 5 ·
What Determines the Number of Real Roots in a Quadratic Equation?
- Hyzon
- · Replies 3 ·
Compound Microscope Homework: Angular Magnification & Object Distance
- dvolpe
- · Replies 9 ·
Why Are Most Pieces of Iron Not Magnetic?
- blufor79
- · Replies 3 ·
Ranking paths by average velocity from position-time graphs
- Lorek
- · Replies 2 ·
Why do large particles scatter more light than smaller particles?
- thewall12
- · Replies 1 ·
How Does Doubling Time Affect Specific Heat Capacity in Thermal Physics?
- Doubell
- · Replies 5 ·
Theoretical problem (no calculations) with electric field from moving charge
- solarboy
- · Replies 1 ·
Heat dissipated from electric field
- capandbells
- · Replies 3 ·
Work done by force (Vector notation)
- Gold3nlily
- · Replies 6 ·
Magnetic Field and vectors from Two Wires
- cse63146
- · Replies 9 ·
Moving electrons and magnetic fields
- heston1980
- · Replies 2 ·
Electric Field of Non-Conducting Sheets.
- dvsumosize
- · Replies 11 ·
Switching from parallel to series and keeping restistance the same.
- lilcho
- · Replies 4 ·
Water going down a waterfall, where is it warmer?
- aeromat
- · Replies 2 ·
How Much Does a Basketball Player Displace the Rim When Dunking?
- aeromat
- · Replies 3 ·
Great, thank you for the feedback!
- Peter G.
- · Replies 5 ·
Finding Velocity at impact of a projectile motion with an angle
- Physics Rulez
- · Replies 2 ·
What is the minimum speed needed for a cannonball to orbit the Earth?
- saan100
- · Replies 1 ·
How much heat flows through a brick wall with different thermal conductivities?
- goofnewf
- · Replies 7 ·
Apparent forces in circular motion
- lokobreed
- · Replies 4 ·
Who wins the relativistic space race?
- InsertName
- · Replies 2 ·
How to make a water rocket fly high?
- zeo2396
- · Replies 3 ·
Electric potential from a uniformly charged rod at two points
- mr.alhassan
- · Replies 1 ·
Study of the spring lunching system of pinball
- please help i
- · Replies 1 ·
How Do You Calculate the Speed of Repelling Charged Objects?
- Chipper
- · Replies 3 ·
Calculating Frequency Difference of a Rotating Siren - How Fast Must It Spin?
- sirclash
- · Replies 2 ·
Skateboarder on 48° ramp: finding maximum height
- scroobnab
- · Replies 11 ·
Calculate Energy and Velocity of Thrown Objects: Beach Ball and Fastball
- eck0616
- · Replies 3 ·
Where Is the Center of Mass in a Club Axe?
- gl7
- · Replies 2 ·
Shortest wavelength in Lyman series for Be3+ using Rydberg formula
- ObliviousSage
- · Replies 1 ·
What is the final speed of the bicyclist rolling downhill?
- jorge0531
- · Replies 2 ·
Index of Refraction, Snell's Law, and Brewster's Angle
- alibert0914
- · Replies 3 ·
How Does Young's Modulus Affect the Elongation of Composite Rods?
- notsam
- · Replies 1 ·
Particle with 0.900 kg mass in potential energy well: speed at x = 1.0 m or turning point
- soccerkid999
- · Replies 6 ·
Friend pulls the spring without you looking
- aeromat
- · Replies 1 ·
Making Amplitude of Oscillation the Same
- schaefera
- · Replies 1 ·
Why is there no initial momentum in the y direction when two objects collide?
- godkills
- · Replies 8 ·
Solving quadratic equations using formula
- Hyzon
- · Replies 2 ·
Lorentz transformation, special relativity problem
- mhen333
- · Replies 2 ·
Master and Output Pistons in Car Breaking System: Calculating Force and Movement
- goofnewf
- · Replies 3 ·
Calculate Mass Flow Rate of Blood in Aorta
- notsam
- · Replies 2 ·
Free Electron passing over Potential Well
- jegues
- · Replies 6 ·
What Is the Age of Rock Using Potassium-Argon Dating?
- bmxicle
- · Replies 6 ·
Outward force of molasses on a cylinder
- lluhi
- · Replies 3 ·
How Does Moving a Wire in a Constant Magnetic Field Affect Induced Current?
- caljuice
- · Replies 1 ·
Energy calculation with no time given
- mbm
- · Replies 1 ·
Converting torque to angular acceleration in rotational dynamics
- ghadz8
- · Replies 13 ·
Faraday disc, rate of change of the kinetic energy.
- Silversonic
- · Replies 1 ·
Finding resistance of a wire with given length and diameter
- VitaX
- · Replies 1 ·
Calculating Forces and Power on a Block on an Inclined Plane
- ProPM
- · Replies 2 ·
Dynamics and thermodynamic problem
- Maxpin
- · Replies 8 ·
Calculating the Centroid Position of a Symmetrical T-Section
- mechanicstudy
- · Replies 1 ·
How do you calculate the forces involved when a claw hammer pulls out a nail?
- pegasus24
- · Replies 3 ·
Angular dependence (atomic and molecular physics)
- blueyellow
- · Replies 3 ·
An Ant standing peacefully on a String
- jegues
- · Replies 5 ·
Surface charge density of a thin shell within a uniformly charged sphere
- LostInToronto
- · Replies 2 ·
Can someone explain this fluids formula to me?
- fernancb
- · Replies 2 ·
What Does Fd Represent in Net Force Calculations?
- reganw
- · Replies 5 ·
Finding Surface Area for a 1 Farad Parallel Plate Capacitor
- Lancelot59
- · Replies 1 ·
Planetary Orbit Energy Calculation Without Gravitational Potential Equation
- SaraF
- · Replies 2 ·
Determining Coefficient of Friction for a Sliding Toboggan on a Slope
- RajNijhar
- · Replies 1 ·
How Does an Electron Impact the Walls of an Infinite Potential Well?
- laxatives
- · Replies 1 ·
Box Acceleration with Given Force and Coefficient of Friction
- RajNijhar
- · Replies 2 ·
Kepler's Laws: Escape Velocity and Rotational Period of Asteroid
- sillybean
- · Replies 5 ·
Solving Infinite Square Well: Find Probability of Electron in 0.15nm
- khemist
- · Replies 5 ·
Why do we use negative signs for clockwise moments in torque calculations?
- mechanicstudy
- · Replies 6 ·
What's the Net Charge on the Outer Sphere?
- bmxicle
- · Replies 8 ·
Why Is Capacitor Reactance 1/LC Instead of 1/sqrt(LC)?
- ben.tien
- · Replies 3 ·
Horizontal force needed to move a 30 kg ladder against a wall
- TyErd
- · Replies 13 ·
How to use a spring balance in space?
- reganw
- · Replies 6 ·
Magnetic Field, Parallel wires carrying current
- jegues
- · Replies 2 ·
Determining the Phase Constant in Simple Harmonic Motion
- joeyjane
- · Replies 2 ·
Newton's laws, finding acceleration and force
- jevillan
- · Replies 1 ·
Magnetic force between two parallel hanging wires
- c4795
- · Replies 8 ·
Increase Entropy: Solve 0.15kg Ball Dropped from 24m Tower
- liz_p88
- · Replies 2 ·
Need formula to relate distance to arcsec in the sky
- leonne
- · Replies 6 ·
Which Graph Paper to Use for Power Relationships: Semi-Log vs Log-Log?
- JyN
- · Replies 1 ·
Charge on each capacitor after two charged capacitors are connected
- Lancelot59
- · Replies 6 ·
Direction of flow of the electrons
- stmartin
- · Replies 5 ·
How Does the Weight at Point E Change When Rod AB Moves Horizontally?
- chawki
- · Replies 16 ·
How Does Adding a Hydrogen Layer Affect Tunneling Coefficients in STM Analysis?
- erok81
- · Replies 1 ·
Calculating Uncertainty in Averages for Scientists
- spikethekitty
- · Replies 1 ·
Mass of an atomic layer of a baloon
- Myrddin
- · Replies 1 ·
What's an inertial frame of reference?
- MarekS
- · Replies 3 ·
How Does Kirchhoff's Law Apply to Calculating Currents and Voltage Differences?
- flyingpig
- · Replies 42 ·
How can I quickly determine the direction of induced current using Lenz's Law?
- flyingpig
- · Replies 4 ·
Relativistic energy and momentum 2
- roman15
- · Replies 18 ·
Maxwell Distribution: Deriving Mean and Max Speed
- blueyellow
- · Replies 5 ·
Why would the car move forward after being hit
- o0griff0o
- · Replies 9 ·
Calculating Angular Momentum for a Moving Object with a Given Force
- Duderonimous
- · Replies 2 ·
Inductor (and Capacitor) Discharge
- Willa
- · Replies 23 ·
Resistance against temperature graph
- hms.tech
- · Replies 1 ·
Dielectric constant in the energy density function
- RoyalCat
- · Replies 5 ·
Why does spin-1/2 give total angular momentum √(3/2)ℏ not 1/2ℏ?
- bon
- · Replies 1 ·
Block sliding down frictionless wedge on table
- wsender
- · Replies 6 ·
A block on a wedge which itself sliding
- center o bass
- · Replies 4 ·
Converging lens with object, flat mirror at 2cm, final image?
- spikers220
- · Replies 1 ·