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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Gravitational Field Problem - Integrate?
- Mmm_Pasta
- · Replies 2 ·
SHM in atoms question I think my textbook is wrong :0 yet again.
- The CdePster
- · Replies 2 ·
Which has a greater impact of force?
- preluderacer
- · Replies 5 ·
Maximum speed of sinusoidal vibration in s.h.m.
- Bugsy23
- · Replies 1 ·
Finding the time constant in Q=Q₀(e^(-t/RC)) when only the capacitance is given
- flyers
- · Replies 2 ·
Center of mass: mass's on a right triangle system
- IDKPhysics101
- · Replies 1 ·
Finding Energy while knowing intial Y and desired x
- sfishman59
- · Replies 1 ·
Finding Initial Velocity with barely anything
- allegro1993
- · Replies 6 ·
EM: induction in a moving conductor
- srvs
- · Replies 2 ·
Why is Momentum Not Conserved in a Ball of Clay Colliding with a Wall?
- preluderacer
- · Replies 6 ·
Determine the tension in cable BC and the reactions at A.
- Liondancer
- · Replies 1 ·
What Are the Formulas for Calculating Photon Momentum and Work Function?
- Procrastinate
- · Replies 2 ·
Is there no force acting on the box?
- Rashid101
- · Replies 1 ·
Thermal Energy I don't see why my method is wrong.
- Null_
- · Replies 9 ·
How to Calculate the Compression Distance of a Spring on an Inclined Plane?
- blade_090
- · Replies 8 ·
Where Is the Center of Mass in a Right Triangle?
- preluderacer
- · Replies 1 ·
Bullet in a block hitting a spring
- preluderacer
- · Replies 3 ·
Understanding Nodes and Frequencies in a Uniform String Under Tension
- tourjete
- · Replies 1 ·
Angular velocity of shell rotating in barrel after 2 turns
- paragchitnis
- · Replies 3 ·
2D Vector Kinematics Problem (projectile)
- j3llzang
- · Replies 6 ·
What Went Wrong in My Elastic Collision Calculation?
- VitaX
- · Replies 2 ·
Moment of Inertia Lab for discs of mass
- errorbars
- · Replies 3 ·
Finding Moment of Inertia - Rigid Rod Plus Disc System
- MEJJ
- · Replies 6 ·
How Does a Silvered Hemisphere Affect Image Position in Optics?
- barakuda
- · Replies 2 ·
Calculating Distance Traveled for Two Skaters
- IDKPhysics101
- · Replies 1 ·
Magnetic Field Between Two Wires
- sgoeke
- · Replies 1 ·
Calculating Force P: Solving a Statics Problem with Friction and Pulley Neglect
- smashbrohamme
- · Replies 3 ·
Relationship Between String Tension and Stretch
- BraedenP
- · Replies 3 ·
Confusing forces, and friction problem
- johswill
- · Replies 1 ·
Motorcycle jump across buses: getting 26 instead of 24
- RyanJF
- · Replies 1 ·
How Much Time is Saved in a Baseball Throw with an Infielder Relay?
- lanruoer
- · Replies 1 ·
Finding Acceleration on 30° Downward Slope w/ 0.10 Coeff. of Friction
- homevolend
- · Replies 1 ·
Two Resistors in a Parallel Circuit
- Obsqura
- · Replies 1 ·
Mechanical Energy Question Involving a Spring
- Dante Tufano
- · Replies 3 ·
Calculating Velocity After Car-Truck Collision
- IDKPhysics101
- · Replies 1 ·
How Do You Calculate the Magnitude of Acceleration from Multiple Forces?
- physics_10
- · Replies 6 ·
What Is the Cannon's Velocity Relative to the Ground?
- lvslugger36
- · Replies 1 ·
Gayle diving on sled with brother jumping on midway down hill
- Zubz
- · Replies 2 ·
Coefficient of friction for a dragged 4kg bag with 20N force at 60°
- purplelgnd18
- · Replies 8 ·
When and Where Will Spaceships #1 and #2 Meet in Special Relativity?
- SMG75
- · Replies 1 ·
Forces and torque on a cable/beam
- MitsuShai
- · Replies 7 ·
Bottle rocket max height and initial speed from 6.52s flight time
- heatpro
- · Replies 1 ·
MoI of a Solid Sphere Derivation
- alex3
- · Replies 5 ·
Drop (inches) to achieve 10fps Velocity
- Al U. MaCraft
- · Replies 1 ·
Finding the gas ejection rate for a rocket at 1950 m/s
- hjr
- · Replies 5 ·
Calculatin coefficient of friction for a scooter
- besaw212
- · Replies 3 ·
Uneven start/end points (2D Kinematics)
- nz314
- · Replies 1 ·
Ball launched from compressed spring reaches what height?
- Winged
- · Replies 3 ·
Solving the Problem of Sliding up a Ramp
- yourrock
- · Replies 2 ·
Answer: Diffraction Maxima: Angular Locations of 1-4th Maxima
- shyta
- · Replies 4 ·
Simple Harmonic Motion of a rolling ball
- MozAngeles
- · Replies 1 ·
Spring Compression on an incline
- luvey
- · Replies 1 ·
How Do You Calculate the Number of Photons from Sunlight on Earth?
- sollinton
- · Replies 1 ·
Determining the spring constant from Force vs dL data
- tdoyzz
- · Replies 4 ·
Regarding Friction/Normal force at 90(d) angle
- PureSin
- · Replies 2 ·
Solve Physics Problem: Stopping a Car with Skid Marks
- runningirl
- · Replies 4 ·
Speed of propagation of sound wave?
- whitestork
- · Replies 1 ·
Massless pulley and acceleration
- iloveannaw
- · Replies 10 ·
Escape velocity from Earth's center using energy conservation
- Airsteve0
- · Replies 1 ·
How many kwh of electricity would have been consumed?
- ohheytai
- · Replies 4 ·
Force between conducting spheres
- dekonig
- · Replies 2 ·
My teacher never went over this in class
- RyanJF
- · Replies 8 ·
Finding Mean Angular Velocity of Rotating Body
- paragchitnis
- · Replies 1 ·
What Is the Coefficient of Kinetic Friction for a Snow Shovel on a Sidewalk?
- homevolend
- · Replies 1 ·
AZING! Conservation of Energy and Velocity in Tarzan's Swing
- baileya
- · Replies 1 ·
Finding Impluse through Momentum
- VitaX
- · Replies 7 ·
Solving Friction: Finding the Horizontal Force
- homevolend
- · Replies 1 ·
Projectile Motion (Vector Quantities)
- deaninator
- · Replies 2 ·
Fall height causing finger fractures from catching on a ledge
- futuredoc206
- · Replies 2 ·
Calculating Force Required to Overcome Friction
- runningirl
- · Replies 4 ·
A question involving work, power, etc.
- baileya
- · Replies 1 ·
Aplha Particle in a magnetic field
- physicist101
- · Replies 1 ·
Velocity and acceleration equations
- roza-chan
- · Replies 2 ·
NOAA-N satellite orbital speed calculation at 870 km altitude
- dezhiz
- · Replies 2 ·
Wrench falling from helicopter takes 9.0 s to reach ground
- McKeavey
- · Replies 3 ·
Damped Oscillation: Finding Time Constant
- Wanderer00
- · Replies 1 ·
How Do You Calculate the Power of a Crane Lifting a Mass?
- DoMiNoEs
- · Replies 1 ·
How to find the angle between the resultant and the X axis?
- deaninator
- · Replies 19 ·
Kinematics/Newtons Laws Physics
- McKeavey
- · Replies 1 ·
Electric field in a platinum wire
- sdevoe
- · Replies 3 ·
How Do You Calculate the Velocity of the Center of Mass?
- akaur
- · Replies 2 ·
Max Velocity While Compressing a Spring?
- peterbishop
- · Replies 2 ·
Amplitude and period of a spring
- musicmar
- · Replies 1 ·
Calculating Heat Over a Cycle: Q, dU, W
- mneox
- · Replies 3 ·
Two Different Masses on an Uncentered Fulcrum (Torque)
- Watagun
- · Replies 2 ·
Equivalent resistance of circuit
- Learnphysics
- · Replies 4 ·
Drawing a Velocity/Position-Time graph from 2D kinematics.
- mHo2
- · Replies 2 ·
Bag of cement hanging from three wires at equilibrium
- joedozzi
- · Replies 13 ·
Why Are Coefficients of Friction Dimensionless?
- k-rod AP 2010
- · Replies 2 ·
Finding resultant displacement from two vector segments
- mrrocketknigh
- · Replies 3 ·
Quick Microwave Optics question - Malus' Law
- satchmo05
- · Replies 6 ·
Block on table with two masses on a 45-degree pulley string
- bsmith2000
- · Replies 7 ·
Parallel and perpendicular vectors
- Gregg
- · Replies 3 ·
Deriving B=(μ₀i)/(2πr) from Biot-Savart for infinite wire
- mastertan
- · Replies 6 ·
What Angle \(\phi\) Balances the Pulley in Static Equilibrium?
- msds1502
- · Replies 1 ·
Finding power from a stomp rocket launch without measuring time
- GodAllen
- · Replies 1 ·
Y-component of velocity after collision between 0.2 kg and 0.1 kg objects
- tasveerk
- · Replies 6 ·
Implementing Runge-Kutta 2nd order for galaxy particle motion
- InuYasha
- · Replies 1 ·
What speed must a pion reach to travel 25 meters before decay?
- alicia.kostka
- · Replies 7 ·