Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Ball rolling on flat surface vs inclined surface velocity
- Renue
- · Replies 7 ·
Acceleration of object A in a two-pulley system with equal masses
- Asad Raza
- · Replies 10 ·
Understanding Tension Forces in a Slowly Rising System
- deuce123
- · Replies 1 ·
Normal modes: finding initial conditions for coupled oscillators
- gimak
- · Replies 2 ·
How High Does the Oil Drum Rise on the Sloping Plank?
- Jahnavi
- · Replies 3 ·
Rotating disc in a rotating magnetic field
- anonyaway
- · Replies 8 ·
Why does method 1 give much larger mass errors in Newton's 2nd law experiment?
- Jimmy87
- · Replies 17 ·
Stopping distance after a collision down a ramp
- NZBRU
- · Replies 15 ·
5kN compressive force on component with circular and square sections
- Al_Pa_Cone
- · Replies 36 ·
Does a ball's speed change after it leaves the hand when thrown horizontally?
- nilic1
- · Replies 13 ·
Understanding Drag Force against a non-linear Force
- Kiwigami
- · Replies 10 ·
Is My Solution for a Simply Supported Beam Correct?
- AutumnBeds
- · Replies 1 ·
Circular wire with ball and spring problem
- Victoria_235
- · Replies 6 ·
What's the shortest length here?
- Asad Raza
- · Replies 9 ·
Complex Capacitor Circuit (for me)
- FJay
- · Replies 2 ·
Inelastic collision: block moving down a frictionless ramp
- Ly444999
- · Replies 4 ·
Why Does Object A Reach the Bottom First in a Rigid Body Dynamics Experiment?
- letoiledemer
- · Replies 11 ·
How Does Force Location Affect Center-of-Mass Acceleration?
- Kevodaboss
- · Replies 8 ·
Why does an object on Earth push up if gravity pushes down?
- deuce123
- · Replies 5 ·
Impedances in a 5 element circuit
- gimak
- · Replies 5 ·
Group of particles in a magnetic field
- fishturtle1
- · Replies 2 ·
Find time given a force with respect to displacement
- Kiwigami
- · Replies 12 ·
Work done by gas with constant pressure and changing volume
- Timothy Schablin
- · Replies 4 ·
Angular velocity and acceleration of a plank
- Kevodaboss
- · Replies 7 ·
Finding satellite period from orbital formulas and computing time of periapse passage
- Cassius1n
- · Replies 7 ·
Distances where electrostatic potential is zero
- Sunbodi
- · Replies 9 ·
Why do F=ma and work-energy method give different velocities?
- Kiwigami
- · Replies 6 ·
Rod Falling under gravity hits straight edge
- decerto
- · Replies 14 ·
Calculating Electric Field Using Gauss's Law for a Spherical Charge Distribution
- Chemmjr18
- · Replies 4 ·
Classical mechanics differential equation F(x) = -kx
- Salvador_
- · Replies 24 ·
Direction of magnetic field and moving particle
- fishturtle1
- · Replies 10 ·
Electric field from uniformly charged wire at perpendicular height r
- Chemmjr18
- · Replies 6 ·
Finding the Original Charge Given Force
- Stephanie Hernandez
- · Replies 3 ·
Finding the average energy in an RLC circuit
- gimak
- · Replies 9 ·
Air resistnce in projectile motion decreasing time of flight
- Elena14
- · Replies 1 ·
Moles and molecules in a rising bubble
- Jordan Michaels
- · Replies 5 ·
Accelerometer data interpretation
- Cota
- · Replies 7 ·
ROV sinking at constant velocity with buoyancy and drag
- vincekillics
- · Replies 9 ·
Magnetic Forces on objects in nonuniform fields
- Astronaut
- · Replies 3 ·
Thermodynamics cycle work question
- Vitalius6189
- · Replies 7 ·
Solving 2 Rotating Discs Homework: Angular Velocities
- person123
- · Replies 32 ·
Complex power calculation with AC impedance
- gimak
- · Replies 4 ·
What is the formula for tension at various angles in a constrained mass system?
- e2m2a
- · Replies 5 ·
Find the gear ratio for maximum angular acceleration
- fahraynk
- · Replies 28 ·
Two blocks colliding head-on: finding final speed of 2m block
- Richardparker800
- · Replies 7 ·
Why is the electric field inside the dielectric cancelling?
- Abhishek Das
- · Replies 2 ·
Calculating Water Force and Moment in a Fresh Water Storage Tank
- AutumnBeds
- · Replies 12 ·
Ice and water mixing: will all the ice melt?
- Jahnavi
- · Replies 1 ·
How Much Steam Is Needed to Heat Water from 24°C to 90°C?
- Jahnavi
- · Replies 1 ·
Calculating Equilibrium Temperature of Ice and Water Mixture
- Jahnavi
- · Replies 1 ·
Capacitance between a wire and a plane
- Kelly Lin
- · Replies 6 ·
How to Calculate the Electric Field at the Origin from a Uniformly Charged Rod?
- J6204
- · Replies 3 ·
Magnetic field from a wire at a point
- Decimal
- · Replies 14 ·
Not sure if this approach is correct for ball falling past a window
- deuce123
- · Replies 10 ·
Problem with torque, angular momentum and forces
- Granger
- · Replies 11 ·
Addition of Angular Momentum for identical particles
- Gabriel Maia
- · Replies 1 ·
Different EMFs joined in parallel
- Tanishq Nandan
- · Replies 5 ·
Show that the motion is simple harmonic
- Nemo's
- · Replies 8 ·
Find electric Field at a point A
- FJay
- · Replies 4 ·
Find the angle between this vector and the coordinate axes
- donaldparida
- · Replies 16 ·
Condition for He and Kr mixture to behave as a perfect gas
- criticalPoint
- · Replies 3 ·
How to find the radii of these 2 circles given 2 known points
- Helly123
- · Replies 7 ·
Max Drum Rotate Speed of a Concrete Mixer Drum
- PFuser1232
- · Replies 9 ·
How Does a Capacitor Charge to Negative Voltage in an RC Circuit?
- ace8888
- · Replies 20 ·
Calculating Net Heat Flow for an Aluminum Disk in a Room
- lonelypancreas
- · Replies 3 ·
Forces, 3 masses, 2 by Tension, constant A
- Albertgauss
- · Replies 12 ·
Error Analysis of wall thickness
- Nikhil Rajagopalan
- · Replies 4 ·
How does the gradient of the graph compare to the W force
- Orm25
- · Replies 3 ·
Calculating angular frequency and velocity after a collision
- Fibo112
- · Replies 10 ·
Time varying resistance in circuits
- Tanishq Nandan
- · Replies 1 ·
What is the correct angle between two vectors?
- Jamison Lahman
- · Replies 3 ·
Have a problem with this Rotational Motion question
- Shuo Xue
- · Replies 5 ·
Undamped Harmonic Motion of a rod
- Feodalherren
- · Replies 34 ·
Can Elastic Potential Energy Ever Be Negative?
- Joseph Phan
- · Replies 1 ·
Frictional Forces on a Wooden Crate with External Forces
- braydon
- · Replies 1 ·
Electric Field of Linear Charge along a Line Segment
- phy6
- · Replies 2 ·
RLC circuit with capacitor charge and resistor voltage
- mathiscool1
- · Replies 8 ·
How does weight distribution affect trailer oscillation patterns?
- Leoo0000
- · Replies 1 ·
Pytels Dynamics 12.18: Rocket dynamics
- Alexanddros81
- · Replies 4 ·
Physical interpretation of free body force diagram
- sassora
- · Replies 13 ·
Electric field of two plates separated by a spacial charge.
- Decimal
- · Replies 1 ·
Pytels Dynamics 12.14: particle moves on helix
- Alexanddros81
- · Replies 3 ·
Tractive Force = 3554 N"Racing Car Acceleration: Find the Tractive Force
- AutumnBeds
- · Replies 3 ·
Mutual Inductance of two coaxial coils
- razidan
- · Replies 10 ·
Two different RC circuit voltage equations
- ace8888
- · Replies 4 ·
Tennis serve angle to clear the net at 170 km/h
- williamwong0402
- · Replies 14 ·
Dynamics in Motion: Solving Problems with Acceleration and Velocity Equations
- aatari
- · Replies 5 ·
[Heat and calorimeter] I can't get the correct answer
- Waffle24
- · Replies 7 ·
Vector Addition: Components with Given Directions and Magnitudes
- aatari
- · Replies 4 ·
Steam added to ice cube: how much melts and final temperature
- Const@ntine
- · Replies 16 ·
Adding Vectors: Understanding Direction and Length
- aatari
- · Replies 5 ·
Does V0 affect acceleration under constant Force?
- VinnieD
- · Replies 4 ·
When can the velocity gradient be set to zero?
- ScareCrow271828
- · Replies 7 ·
Bombardment of Nitrogen-14 with an alpha particle
- agent5514
- · Replies 2 ·
Amplitude and wavelength of longitudinal wave
- songoku
- · Replies 10 ·
What is the relationship between torque and net forces in a rotating system?
- Fibo112
- · Replies 4 ·
Force Acting on a System of connected masses
- Feodalherren
- · Replies 26 ·
Why does terminal voltage change when current flows through a real battery?
- Tanishq Nandan
- · Replies 3 ·