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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Did the Break Shot Break the Pool Record?
- beginner33
- · Replies 2 ·
Trouble with Uniformly Accelerated Motion problem
- Trickstar
- · Replies 6 ·
How can the time taken for a loop to roll down an incline be calculated?
- Saitama
- · Replies 10 ·
Calculate the total resistance of the circuit
- agoogler
- · Replies 4 ·
Why can't moment of Inertia be never greater than MR2
- andyrk
- · Replies 5 ·
How to find the point between Mercury and the Sun so force = 0?
- agentlee
- · Replies 36 ·
Uncertainty-what is the rate with 0.59% precision?
- Outrageous
- · Replies 6 ·
Finding Ratios of Velocities After Impulsive Force on Rod of 3 Equal Masses
- keyboardkowboy
- · Replies 3 ·
Field due to a solid hemisphere with uniform charge density
- PhizKid
- · Replies 4 ·
Why is gravitational field strength g defined with a negative sign?
- SecretSnow
- · Replies 28 ·
Characteristics of a rigid body.
- andyrk
- · Replies 5 ·
Thermodynamics Heat Radiation Problem
- astral87
- · Replies 1 ·
Kinetic friction incline problem
- Nirupt
- · Replies 1 ·
Effective spring constant with two springs and a pulley
- judas_priest
- · Replies 13 ·
Calculating Voltage in a Parallel Branch
- judas_priest
- · Replies 13 ·
Torque, gravity, and equilibrium
- musicalmedicin
- · Replies 5 ·
Have I Correctly Converted a Velocity-Time Graph to a Position-Time Graph?
- STEMucator
- · Replies 5 ·
How do different forces affect the acceleration of a spinning uniform disk?
- BadSkittles
- · Replies 1 ·
Finding the magnitude of the resultant vectors
- fxsnowy
- · Replies 3 ·
Question regarding kinematics
- sankalpmittal
- · Replies 18 ·
Problem regarding induction and Gauss' Theorem
- sankalpmittal
- · Replies 10 ·
Rocket Pushing Box in Empty Space
- adjacent
- · Replies 8 ·
Tangetial acceleration in elliptical orbit
- bkraabel
- · Replies 1 ·
Rolling Resistance without slipping
- andyrk
- · Replies 5 ·
Average velocity from graph and monkey sled on incline
- bri22
- · Replies 1 ·
Does Pure Rolling Exclude Kinetic Friction?
- andyrk
- · Replies 4 ·
Power of EM Wave Absorbed by Circular Disk of Radius 2m
- NA19
- · Replies 3 ·
Rotational Kinetic Energy of Disks
- chrisa88
- · Replies 2 ·
Why doesn't projectile height at 60° equal 3x the height at 30°?
- HadanIdea
- · Replies 7 ·
Time it takes for an electron to travel a set distance
- Reprisal35
- · Replies 6 ·
Angular velocity, acceleration, and torque
- BadSkittles
- · Replies 4 ·
Discussion question from university physics
- hagglebaby
- · Replies 2 ·
Coefficient of kinetic friction for lab
- catzmeow
- · Replies 16 ·
Where is the Electric Field + Potential zero? Draw a graph
- Reprisal35
- · Replies 19 ·
What Are the Unknown Masses and Tensions in a 20kg Static Pulley System?
- Suarden
- · Replies 3 ·
2 Atomic Physics questions - Pauli exclusion principle
- daleklama
- · Replies 1 ·
Why does node analysis require a ground node?
- judas_priest
- · Replies 6 ·
What is the capacity of the capacitor?
- tsgkl
- · Replies 7 ·
What Is the Correct Formula for Normal Force on a Sloped Surface?
- Robertoalva
- · Replies 2 ·
Force Between Two Conducting Spheres
- Paras Lehana
- · Replies 5 ·
Revolution of moon and satellite
- Asla
- · Replies 1 ·
Average pressure from rain falling on a circular region
- clovergogo
- · Replies 3 ·
Can a sphere in pure rolling motion ever slow down?
- andyrk
- · Replies 5 ·
Block moving with angled force
- Robertoalva
- · Replies 5 ·
Rotational Intertia of a rotating Space Station
- slingshotnz
- · Replies 4 ·
What does frictionless pulley really mean?
- andyrk
- · Replies 4 ·
Electric fields change in the spacing between the plates?
- tsgkl
- · Replies 1 ·
Kinematics Min/Max angles of a projectile
- ieaglei
- · Replies 16 ·
Blocks with a 'x' force and a 'y' acceleration
- Robertoalva
- · Replies 19 ·
Electric Potential Difference for Speed of Light Percentage?
- aszty8
- · Replies 5 ·
Rolling without slipping and acceleration
- andyrk
- · Replies 18 ·
Center of Mass of Uniform Symmetric Bodies
- andyrk
- · Replies 9 ·
Gravitational Potential Energy question
- stefiex
- · Replies 2 ·
Work done by gas heated in a horizontal cylinder from 300K to 400K
- Asla
- · Replies 6 ·
Relation between Change in Potential Energy and Work Done
- andyrk
- · Replies 4 ·
What is the angle of an incline with a ratio of 1:25?
- HadanIdea
- · Replies 1 ·
How Do Non-Conservative Forces Affect Potential Energy?
- andyrk
- · Replies 5 ·
Calculating time period of oscillation
- Saitama
- · Replies 21 ·
Use of a non-inertial reference frame in a problem involving rotation?
- serllus reuel
- · Replies 2 ·
What Is the Correct Progressive Wave Equation for a Particle at Origin?
- hhm28
- · Replies 3 ·
Voltage difference of the wing of an airplane in Earth's magnetic fiel
- aChordate
- · Replies 2 ·
Solving for v: "Calculating the Speed of Puck After Collision
- BadSkittles
- · Replies 1 ·
Finding the Force of Friction and Minimum Mass for a Moving Block System
- postfan
- · Replies 5 ·
What are the measurements of Earth in physics?
- Furfox
- · Replies 8 ·
Estimating the (average local field)/(Applied field) in water
- Order
- · Replies 2 ·
How to Calculate the Electric Charge of a Capacitor with Mixed Dielectrics?
- chmate
- · Replies 3 ·
How to Draw an Acceleration vs Displacement Graph?
- hav0c
- · Replies 3 ·
Find the mass of a cat as it walks across a plank
- agentlee
- · Replies 9 ·
Radial acceleration in uniform circular motion
- andyrk
- · Replies 12 ·
Object whose gravity makes milk behave as in spinning bowl
- bkraabel
- · Replies 1 ·
Why don't we feel the Earth moving?
- alingy1
- · Replies 23 ·
Greatest Lever Arm: Calculating Force at Elbow Joint
- NA19
- · Replies 5 ·
A car on black ice is on a banked road
- x86
- · Replies 3 ·
Potential and wave number problem (concerning units)
- Lindsayyyy
- · Replies 5 ·
Optics mirrors problem with rearview of car
- alingy1
- · Replies 2 ·
An accelerated iron Ion moving through a mass spectrometer's field
- slybuster
- · Replies 1 ·
Magnetic Flux of a partially rotating loop
- aChordate
- · Replies 1 ·
Work done by gravity with air resistance
- alingy1
- · Replies 4 ·
Mathematical approximations in Physics for angles <20 degrees
- hyde2042
- · Replies 6 ·
Magnetic Field at the center of a square
- aChordate
- · Replies 12 ·
Force on a Moving Charge Due to a Current-Carrying Wire
- aChordate
- · Replies 11 ·
Force of one wire due to the other
- aChordate
- · Replies 15 ·
Magnetic field of an infinite cylinder with constant magnetization
- peripatein
- · Replies 51 ·
Mass of a particle through a magnetic field
- aChordate
- · Replies 7 ·
Work done by electrostatic force. Positive or negative?
- x86
- · Replies 2 ·
Vertical cord tension in an elevator
- Robertoalva
- · Replies 25 ·
What is the convention for writing vector magnitudes in free body diagrams?
- alingy1
- · Replies 4 ·
Relative velocity with respect to image in the mirror
- agoogler
- · Replies 2 ·
How does an object start to move in a circlular path?
- safwan.hossain
- · Replies 5 ·
The length of a path on a sphere (in spherical coordinates)
- ks_wann
- · Replies 14 ·
How Does a Charge Outside a Conducting Cube Affect Its Internal Electric Field?
- sankalpmittal
- · Replies 10 ·
Friction Forces, find the coefficient of kinetic friction
- bellanella23
- · Replies 3 ·
Find the mutual inductance between the coil and the wire in two ways
- sapz
- · Replies 3 ·
Incline with Pulley, find the mass of one block.
- Nirupt
- · Replies 3 ·
Pushing a cabinet on a rough floor
- judas_priest
- · Replies 13 ·
Asteroids and their total energy
- BadSkittles
- · Replies 1 ·
Gravitational force between two parallel roads of length x separated by distance x
- jingu
- · Replies 35 ·
How would gravity act on an object with no velocity?
- safwan.hossain
- · Replies 2 ·
Simple Harmonic Oscillation Problem
- GarrettB
- · Replies 4 ·