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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A basic velocity/distance traveled problem (need work checked)
- Whitishcube
- · Replies 3 ·
- Compton Scattering - Electron Momentum
- phil ess
- · Replies 1 ·
Straight-line motion: Projectile in resising medium
- JJBladester
- · Replies 20 ·
Pulley with three masses what is T1?
- gap0063
- · Replies 7 ·
Calculating Force on Rope in a Pulley System
- bmoore509
- · Replies 9 ·
Solving Bat Doppler Effect Homework Problem
- merf
- · Replies 3 ·
What Is the Minimal Force Needed to Keep a Block Suspended by a Cart?
- bmoore509
- · Replies 10 ·
Radial acceleration, car sircular path
- eventob
- · Replies 7 ·
Solenoid Circuit: Understanding Needle Direction with Open and Closed Switch
- joedirt
- · Replies 1 ·
Wave velocity in a free-hanging rope
- CharliH
- · Replies 2 ·
Work-energy problems on a slope
- jenny egner
- · Replies 3 ·
Will I Make the Crossing in Time?
- a.d.d92
- · Replies 1 ·
How Does Distance Affect Electric Potential Near a Point Charge?
- joedirt
- · Replies 1 ·
The focal length of a mirror. Help me maybe?
- spaghed87
- · Replies 5 ·
Finding distance using acceleration and time
- a.d.d92
- · Replies 34 ·
Block and cart friction problem
- xr250h
- · Replies 6 ·
What is Spectroscopic Notation and How Does It Affect My Homework?
- pat666
- · Replies 1 ·
Why is one of the solutions obtained using Coulomb's Law not valid?
- Saladsamurai
- · Replies 3 ·
Helicopter Physics: Solving the Time of Release Problem
- mekias4
- · Replies 1 ·
Incredibly complicated for basic physics
- JAK3CAL
- · Replies 4 ·
Mass hanging by two ropes, find rope tensions.
- aitee
- · Replies 5 ·
Transformer efficiency conversion
- zebra1707
- · Replies 8 ·
Force required to move a book sandwiched between a hand and a table
- abhisheknaik
- · Replies 1 ·
Calculating Mass of Atwood Machine to Keep It Still
- mmmboh
- · Replies 3 ·
How Do You Design a Chain and Sprocket System for a 25mph Scooter?
- gongsta
- · Replies 1 ·
What Is the Acceleration of a Block in a Pulley System?
- physicsnerd11
- · Replies 1 ·
Statistical mechanics - characteristics temperature of the HF molecule
- Anabelle37
- · Replies 4 ·
How Fast Does an Electron Travel in a Weak Electric Field with Gravity?
- somebodyelse5
- · Replies 3 ·
Solving Cartesian Vector Problems: |D|, |E|, D+E, E-D
- mwhowell
- · Replies 3 ·
Solving Velocity/Time Problems: Step-by-Step
- toyotadude
- · Replies 9 ·
What is the Equivalent Capacitance in This Circuit?
- Acuben
- · Replies 2 ·
Why does the lid stick to the pan after cooking?
- fishingspree2
- · Replies 1 ·
Electromagnetism linear charge density question
- Liquidxlax
- · Replies 2 ·
How Do You Calculate the Minimum Force to Prevent Slipping Between Two Masses?
- mmolteratx
- · Replies 5 ·
Projectile Problem: Find Acceleration of Missile to Shoot Down ICBM
- noleguy33
- · Replies 2 ·
"Find Tension Force Between Two Hanging Blocks
- usernametaken
- · Replies 2 ·
Ordering Vectors by Magnitude: BACDE
- huybinhs
- · Replies 2 ·
Kinematics in 2 Dimensions: Vector addition
- huybinhs
- · Replies 6 ·
What is the acceleration of the upper block when a horizontal force is applied?
- SilentBlade91
- · Replies 2 ·
How Can I Solve This 2D Kinematics Problem?
- praecox
- · Replies 2 ·
Find displacement, time and velocity
- kari82
- · Replies 2 ·
Finding acceleration and distance
- kari82
- · Replies 4 ·
Acceleration at incline with friction
- SilentBlade91
- · Replies 1 ·
What is the Formula for Calculating the Temperature of an Ideal Gas?
- pat666
- · Replies 2 ·
What is the moment of inertia of the plate about z axis?
- zorro
- · Replies 9 ·
Tension Problem: Two boxes with two ropes
- awelex
- · Replies 2 ·
Did I Calculate the Tension in the Cord Correctly?
- apiwowar
- · Replies 5 ·
Gauss Law Problem with Cylinders
- physics16102
- · Replies 10 ·
Table and frictionless pulleys
- apiwowar
- · Replies 3 ·
Projectile motion of a cannon ball
- Ry122
- · Replies 1 ·
How Long Does It Take an Elevator to Complete a Nonstop Run of 185 Meters?
- djester555
- · Replies 1 ·
What is the mass of the hanging block in this system in equilibrium?
- jessicax07
- · Replies 1 ·
Determining Breaking Point Force of a Longer Wire
- mp10bo
- · Replies 1 ·
How Are Theta_1 and Theta_2 Related in Suspended Charged Spheres?
- redbeard
- · Replies 1 ·
Parallel plate capacitor with dielectric. Find capacitance
- physics16102
- · Replies 3 ·
Friction and Velocity: Solving for Constant Velocity on an Inclined Surface
- mohabitar
- · Replies 5 ·
Solving for Average Force: Physics Homework Help for a 0.47 kg Ball
- bunton33
- · Replies 1 ·
Percent difference and uncertainty
- mike2601
- · Replies 1 ·
How Does a Rowboat's Angle Affect Its Path Across a River with a Current?
- berrywild120
- · Replies 1 ·
Stuck on this simple physics problem.
- pokeefer
- · Replies 3 ·
Equivalent Capacitance Question
- theskyisgreen
- · Replies 2 ·
Making a square with point charges (alternative solutions)
- narfarnst
- · Replies 5 ·
Charge density as a function of r
- JJfortherear
- · Replies 2 ·
Fluid Mechanics - Floating Bodies
- blazin247nc
- · Replies 2 ·
What Are the Equations for Projectile Motion?
- weikari
- · Replies 1 ·
How High is the Cliff if a Rock Takes 3.4 Seconds to Hit the Ground?
- Libohove90
- · Replies 3 ·
Finding Acceleration in a Frictionless System with Multiple Masses
- jessicax07
- · Replies 4 ·
Projectile motion(kinematics in 2d) question
- fame718
- · Replies 1 ·
How Do You Calculate Acceleration and Speed in a Joy Ride Physics Problem?
- Mspike6
- · Replies 9 ·
Find minimal speed for ball to clear wall
- leonne
- · Replies 4 ·
What is the Velocity of Object A After an Inelastic Collision?
- nlsherrill
- · Replies 1 ·
Finding the speed of a moving walkway.
- maccam912
- · Replies 2 ·
Calculating Surface Gravity on Planet X?
- mandi182
- · Replies 4 ·
Constant acceleration motion problem,
- chroncile
- · Replies 8 ·
Just tell me if this is even possible
- Mustapha13
- · Replies 2 ·
Motion problem for constant acceleration of truck
- chroncile
- · Replies 4 ·
Force with two blocks on a table.
- bmoore509
- · Replies 5 ·
Push down on book, frictional force
- SilentBlade91
- · Replies 9 ·
Force on two boxes attached by a string
- asdf12321asdf
- · Replies 4 ·
Understanding Trajectory Graphs
- mymabelline
- · Replies 1 ·
Helped needed with projectile motion given only angle and x/y distance
- TheLunchGun
- · Replies 2 ·
How Is Kinetic Energy Calculated in a Radioactive Decay Problem?
- Psycotic.Goth
- · Replies 5 ·
Calculating the acceleration of gravity using a ticker tape.
- lolbits
- · Replies 3 ·
Will the Passenger Train Stop Before Hitting the Freight Train?
- mopar969
- · Replies 7 ·
3 blocks dragging with friction, find tension
- SilentBlade91
- · Replies 4 ·
Finding magnitudes of vectors given angles
- randomhobo
- · Replies 3 ·
Calculate R from Electric field lines.
- physics16102
- · Replies 3 ·
Tension of a string with a pulley
- asdf12321asdf
- · Replies 4 ·
Acceleration, distance, and friction
- npena29
- · Replies 5 ·
Find Potential Minimum of Two Point Charges
- Mikesgto
- · Replies 5 ·
Average Velocities: Constant Speed on Circular Path
- AdkinsJr
- · Replies 4 ·
Velocity vs time graph of runner
- npena29
- · Replies 6 ·
What Is the Magnitude of the Resultant Vector A+B+C?
- emd8
- · Replies 1 ·
Understanding Bike Energy: Types, Transformations, and Dynamos
- Science10
- · Replies 1 ·
Acceleration-velocity-position graph~
- P-Illiterate
- · Replies 4 ·
Electric Potential Energy two spheres connected by a long wire
- Mikesgto
- · Replies 6 ·
Review Q #4 (Motion in Two/Three Dimensions)
- TeenieWeenie
- · Replies 9 ·
Angle of Vector: Find Resultant Force & Direction
- delfam
- · Replies 4 ·
Review Q #5 (Projectile Motion)
- TeenieWeenie
- · Replies 10 ·
Calculate Displacement Between Two Oases Without a Coordinate System
- TeenieWeenie
- · Replies 13 ·