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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Spaceship trip to distant stars with relativistic speed
- catgoesmeow
- · Replies 3 ·
Electric Field inside an insulating sphere
- zgs
- · Replies 3 ·
Basic Avg Speed/Constant Acceleration train question
- smsport
- · Replies 5 ·
Distance traveled by train using forces and kinetic friction
- Mg53
- · Replies 3 ·
Finding the Minimum Kinetic Energy of Electrons in an Electric Field
- nks27
- · Replies 6 ·
Resultant velocities from 2D collision
- Hurpadurp
- · Replies 3 ·
A line charge with variable charge density
- nilesthebrave
- · Replies 7 ·
Rigid body (rectangular) collision with wall
- alterecho
- · Replies 17 ·
Calculate Power from 100mm Rotating Shaft
- John78
- · Replies 2 ·
Alert driver vs Sleepy Driver distance traveled
- smsport
- · Replies 1 ·
Gauss's law and nonuniform electric field
- boredbluejay
- · Replies 3 ·
Calculating g using horizontal uniform circular motion
- Ebo
- · Replies 9 ·
What determines specific heat capacity of a solid?
- Crushgear64
- · Replies 1 ·
Calculating Resultant Vectors Using Trig
- Plutonium88
- · Replies 7 ·
Induced Current and Eddy Current
- logearav
- · Replies 2 ·
Reducing Decibel Levels: How Far Should You Move from a Loudspeaker?
- duhduhduh
- · Replies 1 ·
Tricky wording in electrical circuits question
- supernova1203
- · Replies 3 ·
Can Sound Sources on a Straight Road Cause Interference Effects?
- rocketman15
- · Replies 1 ·
Solve Kinematics Problem: Car Overtaking Truck
- fxsnowy
- · Replies 3 ·
What is the period of oscillation?
- duhduhduh
- · Replies 7 ·
What is the required force to push a 5.00-kg box up a 30° incline in 4.00s?
- Zarrey
- · Replies 6 ·
Finding velocity, hinged rhombus
- Saitama
- · Replies 15 ·
Forces-vector diagram triangles
- vadevalor
- · Replies 4 ·
Work Energy Method for Linear Motion
- freshbox
- · Replies 5 ·
Solving the Acceleration of a Bob Attached to a Train
- jinhuit95
- · Replies 19 ·
What Are the Components of Vector Q?
- sankalpmittal
- · Replies 3 ·
Springs and masses connected together in a line
- iiJDSii
- · Replies 1 ·
Capacitance - How handle multiple caps in series and parallel?
- needhlp
- · Replies 13 ·
Question on circular motion, finding out the angular displacement in a clock.
- mutineer123
- · Replies 3 ·
Calculating atomic velocities from forces
- Hypatio
- · Replies 1 ·
Determine the possible effects on the water level
- duhduhduh
- · Replies 9 ·
Constant pressure in a heated syringe
- sgstudent
- · Replies 20 ·
Electrostatics problem difficulty for A-Level physics
- johnconnor
- · Replies 5 ·
How to find the missing displacement (vectors)?
- marbille9
- · Replies 3 ·
Estimating pressure and atomic spacing in the upper atmosphere
- johnconnor
- · Replies 6 ·
Vectors and Forces: Solving for Unknown Components (15N)
- lionel messi.
- · Replies 3 ·
Simple pendulum problem - having trouble with the math
- Confused20
- · Replies 7 ·
Mass and spring in circular motion.
- AbigailM
- · Replies 5 ·
Two Relativity Problems on relative length
- Kevin Hsu
- · Replies 1 ·
How to calculate the fourth vertex of a parallelogram
- mercuryman
- · Replies 2 ·
Close tube with string oscillation
- IIK*JII
- · Replies 7 ·
Find velocity of hanging block in a pulley system
- Twiggy92
- · Replies 1 ·
Does ice cube mass affect how far it flicks?
- chelsea
- · Replies 11 ·
Calculate Load of Mild Steel Column
- John78
- · Replies 1 ·
Understanding Heat Transfer in a Freezing System
- sgstudent
- · Replies 7 ·
Understanding schrodinger equation
- LittleManiac
- · Replies 2 ·
Computing magnetic field using Biot-Savart law in MATLAB
- arronslacey
- · Replies 3 ·
Acceleration as a vector. Is it conserved?
- Darth Frodo
- · Replies 7 ·
Problem on frame of reference in rotation
- shreyashebbar
- · Replies 4 ·
Oscillatory motion - Car driving on bumpy road
- Quesadilla
- · Replies 4 ·
Car Acceleration & Friction: Force, Coefficient & Calculation
- intdx
- · Replies 1 ·
How Does Closing a Switch Affect Capacitor Charge Over Time?
- thunderhadron
- · Replies 53 ·
Taking moments about which axis?
- eurekameh
- · Replies 10 ·
Error propagation for value not directly measurable
- sunrah
- · Replies 2 ·
Thermal Expansion: Solving for Temperature Change
- izelkay
- · Replies 2 ·
Why is the tension in a rope 49 N for a 10 kg picture?
- intdx
- · Replies 5 ·
Power Dissipated for 2 different circuits
- lowcard2
- · Replies 4 ·
Why Is My Calculation of Carnot Engine Efficiency Incorrect?
- obxer22
- · Replies 1 ·
Free Fall With Air Resistance Problem
- hardygirl989
- · Replies 3 ·
Calculate the Dead Load on a Simply Supported Beam
- John78
- · Replies 1 ·
What happens when switch 1 closes in an electromagnetic relay?
- supernova1203
- · Replies 2 ·
3 Pulleys System, find the acceleration of both mass.
- Bonten
- · Replies 6 ·
Matching Electric Field Entries
- Saitama
- · Replies 31 ·
Find current when linear mass density and current is given.
- arunashish
- · Replies 1 ·
Why Does Oil on Water Create Rainbow Colors?
- sckeen1988
- · Replies 1 ·
Graphical method to find magnitude and direction
- xupe33jrm
- · Replies 30 ·
Simple Pendulum SHM Problem: Calculating Angular Frequency for Maximum Amplitude
- Hernaner28
- · Replies 1 ·
CO2 molecule oscillation mode 2 frequency derivation
- johnconnor
- · Replies 8 ·
Why Does a Disk Begin to Rotate on a Horizontal Surface with Friction?
- VictoriaWoo
- · Replies 4 ·
A problem about angular momentum
- VictoriaWoo
- · Replies 3 ·
How Does Adding Resistors Affect Bulb Brightness in a Series Circuit?
- sgstudent
- · Replies 7 ·
How would I find the direction in which these waves are travelling?
- mrh124
- · Replies 8 ·
The left end of a long glass rod 6.00cm in diameter has a convex
- sckeen1988
- · Replies 3 ·
Calculating coefficient of friction given m, applied force, and a
- intdx
- · Replies 3 ·
Speed of progressive waves numerical
- lionel messi.
- · Replies 3 ·
How do I determine the maximum distance, that the ball moves upward, and the time for
- R Morrison
- · Replies 2 ·
Find the angular frequency for small oscilations of the following SHM
- Hernaner28
- · Replies 20 ·
Deriving synodic and sidereal period relationship for planets
- s3a
- · Replies 6 ·
Position and Displacement question.
- ybhathena
- · Replies 3 ·
How Do You Calculate the Specific Heat Capacity of a Cupronickel Alloy?
- Eleeist
- · Replies 1 ·
Calculating magnetic field of an infinite strip.
- Berrius
- · Replies 1 ·
Fan blade tangential acceleration equals gravity
- mcordi
- · Replies 1 ·
Mistake on official answer (conservation of linear momentum)
- Hernaner28
- · Replies 20 ·
Compression force in current loop in magnetic field
- amal
- · Replies 3 ·
Left recursive context free grammars
- zulkifli
- · Replies 1 ·
Kirchhoff's Voltage Law - Closed Loop?
- JJBladester
- · Replies 5 ·
Year 12: Cambridge Physics Problem (Movement of Bromine gas in air)
- johnconnor
- · Replies 1 ·
Calculating the Power Needed to Bike Up a Hill
- Jimbo57
- · Replies 3 ·
Electric field between two uniformly, linear charged rods
- tetris4life
- · Replies 1 ·
A solid steel shaft is subjected to a torque of 45 KN/m.
- manal950
- · Replies 11 ·
How Does Fluid Mechanics Explain the Sinking Treasure Box Scenario?
- litheira
- · Replies 1 ·
Reasons why the Franck Hertz experiment might fail
- sunrah
- · Replies 1 ·
Find the aceleration of the disk when falling (rotation)
- Hernaner28
- · Replies 3 ·
Bullet embeds in rod at angle: finding maximum angular displacement
- Hernaner28
- · Replies 12 ·
Minimum spring constant to keep a ladder secure at 30 degrees
- Hernaner28
- · Replies 7 ·
Speed of electron in electric field question
- lowcard2
- · Replies 5 ·
Will the Sphere Reach Point C on Its Path?
- Questions999
- · Replies 9 ·
Why is torque Fd for rolling without slipping?
- Hernaner28
- · Replies 4 ·
Physics of punching a heavy bag
- pkumor
- · Replies 7 ·
Normal force on cylinder resting on sliding support
- ishanp
- · Replies 1 ·