Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Is Acceleration Zero When Velocity Is Zero?
- joe215
- · Replies 1 ·
How can I have a negative angle?
- joe215
- · Replies 1 ·
How Can You Determine the Third Leg of a Sailor's Voyage Using Vector Addition?
- joe215
- · Replies 1 ·
Solving for Vector Magnitude and Direction: Ax=3.2, Ay=-5.15 - Quick Question
- joe215
- · Replies 2 ·
Vector Diagram Question: Finding Resultant Displacement using Components
- joe215
- · Replies 1 ·
How does the presence of water affect the image formed by a converging lens?
- apunisheriii
- · Replies 5 ·
Electric Flux through an Infinite Plane
- julius71989
- · Replies 4 ·
When to use the work-energy formula
- StephenDoty
- · Replies 6 ·
How Does Changing Charge Magnitude and Distance Affect Electric Force?
- Velocity.
- · Replies 8 ·
Calculating Angular Acceleration
- IBY
- · Replies 16 ·
What is Tension in Physics and How is it Defined in a Physics Book?
- Dschumanji
- · Replies 11 ·
How Do You Calculate Angular Velocity and Moment of Inertia?
- edeffect
- · Replies 1 ·
Solving Parachutist Problem: Force Exerted by Parachute
- zpmodel
- · Replies 8 ·
Solving Quadratic Drag Force on Upward Motion of Gun
- jesuslovesu
- · Replies 1 ·
Work required to move the charge
- HelloMotto
- · Replies 1 ·
General questions- acceleration and velocity
- joe215
- · Replies 1 ·
How Does Water Drag Affect Anchor Acceleration and Torque on a Ship's Reel?
- k0b3
- · Replies 3 ·
Elastic Glancing Collision-HELP
- psychfan29
- · Replies 1 ·
Projectile Motion including Displacement and Speed
- girlinterrupt
- · Replies 3 ·
How Does a Coefficient of Restitution of 1/3 Affect Post-Collision Speeds?
- arpitm08
- · Replies 4 ·
Finding speed from acceleration
- aniketto
- · Replies 1 ·
What is the meaning of the \sum signal in this direct current circuit problem?
- zvee_y
- · Replies 6 ·
Why Do Nickel and Iron Exhibit the Highest Binding Energy?
- learning_phys
- · Replies 5 ·
Heat Pumps & COP: How Do They Work?
- Gear300
- · Replies 16 ·
Question about magnetic field of a current
- homomorphism
- · Replies 2 ·
What Wavelengths of Light Appear Bright Due to Oil Spill Interference?
- UAPhys03
- · Replies 3 ·
How Does Reducing Earth's Gravity Affect the Time a Thrown Ball Takes to Return?
- Gear2d
- · Replies 1 ·
Energy in Capacitor: Find Charge & U
- trans_pie
- · Replies 4 ·
Eletric force and gravitational force question
- strawberrysk8
- · Replies 6 ·
Find charge density on two parallel planes
- Thorn
- · Replies 3 ·
Helpppp EM Radiation doesn't make sense to me
- premed
- · Replies 9 ·
Speed of Block After Falling 0.5m: 3.0 m/s
- kaka2007
- · Replies 3 ·
Capacitance per length of co-axial cabel
- trans_pie
- · Replies 3 ·
Slanted Gravity: A boy on a hill
- Anaxerzia
- · Replies 2 ·
Determining D traveled by xForce. (notschoolwork)
- JesseIsAmazin
- · Replies 3 ·
Radiation Dosage and Energy Absorbed by 69 kg Patient
- keweezz
- · Replies 4 ·
Understanding RC Circuits with Multiple Capacitors and Resistors: Homework Help
- tracie
- · Replies 6 ·
Calculate Normalizing Factor for Integers
- gassan
- · Replies 1 ·
Maximum interference of frequencies
- baylorbelle
- · Replies 3 ·
Release Ball to Fall Through Hole on Circular Platform
- dralion87
- · Replies 3 ·
Understanding Oscillatory Motion: Relationship Between Length and Time
- Black-Enigma
- · Replies 2 ·
How can an atom be neutral if it is not in its ground state?
- learning_phys
- · Replies 9 ·
Work & Tension Homework: Find W & Delta K.E.
- Gear2d
- · Replies 1 ·
Resistors & Heat: Quick Explanation Needed
- merr
- · Replies 3 ·
Electric Fields: Charge/Unit Length on Inner Surface of Coaxial Cable
- steph124355
- · Replies 5 ·
Basic physics – mechanics (it is not homework)
- optics.tech
- · Replies 4 ·
Oscillatory motion and transverse wave on string
- mybsaccownt
- · Replies 14 ·
Deflection of bullet by Earth's magnetic field
- jkulier
- · Replies 1 ·
Triple Integration: Transform Equation to Spherical Coordinates
- big_gie
- · Replies 2 ·
How High Can a Flea Jump Using Resilin Energy?
- PSEYE
- · Replies 8 ·
What Are the Amplitude and Period of the Mass-Spring System?
- teenholiday
- · Replies 1 ·
Understanding Hook's Law and Compression of Springs
- Gear2d
- · Replies 4 ·
Melting Lead in a Kiln: Calculating Time and Energy Requirements
- ally1h
- · Replies 8 ·
Relationship between Frequency and Volume in Blowing Air into a Bottle
- mtr
- · Replies 4 ·
Question on pressure, volume and rates of change
- coding_delight
- · Replies 2 ·
Solving Significant Digit Problems with Varying Order of Magnitude
- Irid
- · Replies 1 ·
What Speed Must She Run to Leave the Cart with No Horizontal Velocity?
- vladimir69
- · Replies 4 ·
Higher physics - rearranging prob
- jamespeterstu
- · Replies 2 ·
Trickey projectile motion question
- kilianod
- · Replies 1 ·
Electric field strength of wire problem
- jwoo
- · Replies 5 ·
Object 18cm in Front of Lens to Reduce Image by 2.0
- physicsdawg
- · Replies 7 ·
What Is the Initial Velocity of the Particle in This Collision Problem?
- ddphuyal
- · Replies 1 ·
Understanding the Balmer Series: The Discreet Line Spectrum of Hydrogen Gas
- learning_phys
- · Replies 12 ·
Solving String Tension for Weighted Rings
- kilianod
- · Replies 1 ·
Where Does Extra Voltage in a Step-Up Transformer Come From?
- learning_phys
- · Replies 21 ·
Conformal Transformation for Perpendicular Charged Sheets
- Morto
- · Replies 3 ·
How to Find the Final State and Probability After Measuring \(L_x^2\)?
- liorda
- · Replies 1 ·
Problem on an atwood's machine given an upward acceleration
- mnlaguerta
- · Replies 1 ·
Organ Pipe and Fundamental Frequency
- yellowgators
- · Replies 1 ·
Bernoulli's Equation and A Water Tank w/ Small Outlet
- yellowgators
- · Replies 2 ·
Calculating Young's Modulus with Force and Extension Measurements
- ACCC12
- · Replies 7 ·
Dynamics-Coefficients of Kinetic friction
- shakabra
- · Replies 8 ·
Eccentricity of orbit. Apogee and perigee positions and distances
- shad0w0f3vil
- · Replies 7 ·
Pascal's principle/pressure/viscosity
- ally1h
- · Replies 1 ·
Why is the sun's gravitational pull on the moon greater than the Earth's?
- btrkun
- · Replies 3 ·
How Does a Diode Affect Capacitor Voltage in an AC-DC Conversion Circuit?
- mtr
- · Replies 16 ·
A question on Newton's 3rd Law
- DiamondGeezer
- · Replies 2 ·
Proton hits infinite charged plane, find charge of plane
- aliaze1
- · Replies 1 ·
What is the Magnetic Field Inside a Tightly Wound Ring?
- mtr
- · Replies 16 ·
Time for two bodies to collide under gravity.
- marmoset
- · Replies 19 ·
How to Calculate Mass of a Wire for Measuring Wave Speed
- skiing4free
- · Replies 2 ·
How to Calculate Maximum Speed on a Banked Corner?
- shad0w0f3vil
- · Replies 11 ·
Reply quickly, quiz in a few hours, very simple magnetic field question
- WardenOfTheMint
- · Replies 1 ·
What is the Doppler shift equation for a stationary source and moving observer?
- ally1h
- · Replies 8 ·
Electron velocity and unit vector notation
- 4eleven
- · Replies 1 ·
Equation for triangle using angles
- ramstin
- · Replies 1 ·
Equilibrium of Charged Beads on a Rod
- sqenixs
- · Replies 5 ·
2 bowls rolling on an irregular surface
- mtr
- · Replies 1 ·
Kinematics: Find Ball's Bounce Ratio from Height h
- slogger
- · Replies 5 ·
Help with question related to magnetism
- Antithesis
- · Replies 1 ·
Circular Motion, a swinging ball and tension in string
- Sdarcy
- · Replies 1 ·
Find the acceleration of blocks - Friction problem
- ritwik06
- · Replies 15 ·
Open and Closed Pipe Length for Harmonics
- SUXinPHY
- · Replies 3 ·
What speed is needed for a spacecraft to travel 10 light-years in one year?
- msimmons
- · Replies 4 ·
Solving Rotational Motion Homework: Mass m, Length r, Centripetal Force Fc
- dixonewman
- · Replies 3 ·
Force Required to Separate Magdeburg Hemispheres
- kidsmoker
- · Replies 5 ·
Calculating Acceleration for Circular Motion
- steven10137
- · Replies 7 ·
Measuring resistance accurately?
- BioCore
- · Replies 4 ·
The proabability density of an electron
- worries
- · Replies 2 ·
Solving Magnetism Question: What Current & Direction is Needed?
- adwlacrosse75
- · Replies 5 ·