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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Is the Water Cup Vacuum Trick Real or Just a Viral Video Hoax?
- Emlett
- · Replies 1 ·
What exactly produces fields? A question concerning Mechanics and Electrons
- flyingpig
- · Replies 4 ·
How Do You Calculate the Center of Mass for a Non-Uniform Rod?
- uriwolln
- · Replies 20 ·
Does Specific Heat Capacity Affect the Speed of Heat Transfer in Calorimeters?
- Pseudopro
- · Replies 3 ·
Solving a Locomotive Dilemma: Step-by-Step Guide
- chawki
- · Replies 16 ·
Charge and stored energy for capacitors
- nutmeg6
- · Replies 1 ·
How Do You Calculate the Acceleration of a 42kg Ice Block Sliding Down a Slope?
- dhymas
- · Replies 1 ·
Deriving the rate of change of the radius of a moving particle in a cyclotron.
- JHans
- · Replies 10 ·
Three blocks connected by strings
- chawki
- · Replies 7 ·
How Do You Calculate the Charge Between Two Points Given Voltage Difference?
- SilentBlade91
- · Replies 1 ·
Magnetic field at center of coil from induced current
- acidandroid
- · Replies 5 ·
Finding distance given only initial velocity
- mistabry
- · Replies 2 ·
Find the initial total charge stored
- thst1003
- · Replies 2 ·
How Does Modifying the Load Resistor Affect a Zener Diode Circuit?
- dancergirlie
- · Replies 14 ·
What is the focal length of the mirror?
- dorado29
- · Replies 1 ·
Effect of Sun Angle on Solar Flux and Weather: A Study on Earth's Surface
- irishbob
- · Replies 3 ·
Find Acceleration of a sliding object
- dhymas
- · Replies 7 ·
What Happens to the Current in an LR Circuit After the Switch is Opened?
- Abhishekdas
- · Replies 4 ·
How Do You Derive the Constructive Interference Equation for Reflection?
- baileya
- · Replies 1 ·
What is the final temperature of the aluminum can after heating water?
- thereddevils
- · Replies 2 ·
Momentum Problem - Is it correct?
- AnomalyCoder
- · Replies 3 ·
Heat transfer problem (no solving needed, just need advice)
- williamx11373
- · Replies 2 ·
How Do You Calculate the Motion and Velocity of a Falling Object with Drag?
- keelejody
- · Replies 3 ·
Static Equilibrium: Proving Forces are Equal
- astr0
- · Replies 1 ·
Bow & Arrow - Impulse-Momentum Theorem
- dandy9
- · Replies 1 ·
Physics - Electrostatic Force Question
- VitaX
- · Replies 15 ·
Is Work Done by External Forces Always Zero in Electrostatic Systems?
- saubhik
- · Replies 3 ·
Angle made by electric field lines
- bismita sahu
- · Replies 2 ·
Why Is B°dl Zero at Sections b and d Inside a Solenoid?
- member 217843
- · Replies 1 ·
Electric field at a point due to a subdivided object
- Kibbel
- · Replies 1 ·
Position as a function of position?
- asap9993
- · Replies 7 ·
How Do Capacitors Behave in Series and Parallel Configurations?
- Rblswimmer456
- · Replies 2 ·
What is the electric field at a point 4 cm from the axis of a cylindrical shell?
- pcml100
- · Replies 4 ·
Calculating Max Radius of Asteroid to Escape From
- Master J
- · Replies 7 ·
Generating a Resonance Curve for a System: A Puzzling Problem
- abcdmichelle
- · Replies 4 ·
Electric and magnetic fields: help understanding the question
- musicmar
- · Replies 6 ·
Mastering physics Ch 3 frustation
- Slizzardman
- · Replies 2 ·
How Is Force Calculated When a Student Hits a Dashboard?
- Oriako
- · Replies 31 ·
Do All Carts Need to Collide Simultaneously to Maintain Momentum Conservation?
- dandy9
- · Replies 1 ·
Current & Power Dissipation in Two Bulbs in Series
- chawki
- · Replies 2 ·
Specific Heat of Ice and Copper
- liz_p88
- · Replies 1 ·
Find the kinetic energy of the system
- milkyway11
- · Replies 2 ·
Conservation of Momentum in Multiple-Person Jumping Scenario
- AlexChandler
- · Replies 6 ·
Inelastic collisions, springs and ramps
- AlkaPhys
- · Replies 4 ·
Force related to mass, acceleration and time
- Ohoneo
- · Replies 12 ·
How Does a Longer Crumple Zone Affect Impact Duration and Passenger Safety?
- milkyway11
- · Replies 2 ·
Where does the first minimum appear in a double slit experiment with neutrons?
- erok81
- · Replies 7 ·
Boat Statics, Mastering phyics problem.
- kenau_reveas
- · Replies 1 ·
Checking my work - Displacement
- kristy_vincen
- · Replies 3 ·
Quantum Mechanincs Infinite well
- benjy1
- · Replies 1 ·
Average Velocity of a particle moving in a circle over a given interval
- IAmPat
- · Replies 12 ·
Energy in infinite square well
- w3390
- · Replies 4 ·
Calculating Power Dissipation for a High Power Laser in Manufacturing
- akmphy
- · Replies 6 ·
Direction of static friction while rolling
- arunbg
- · Replies 13 ·
Maximum Safe Speed for Cars on Reverse Bank Angle Highway Curve
- jcook735
- · Replies 6 ·
Vector Addition Problem: Finding Final Displacement using Law of Sines/Cosines
- smittyj
- · Replies 6 ·
Conservation of linear momentum elastic string
- Kurokari
- · Replies 2 ·
How Fast Should Devita Release the Kite String?
- stressedgirl
- · Replies 1 ·
Total potential energy due to gravitational and electrostatic potential energy
- bobred
- · Replies 4 ·
Convergent Lenses: 2-Part Problem and Solution | Focal Point and Image Location
- DrMcDreamy
- · Replies 4 ·
Potential energy and energy conservation question
- Tastosis
- · Replies 7 ·
Two masses on an inclined plane
- bill.boars
- · Replies 6 ·
Calculating Diopters for Bifocals: What Power Should They Have?
- DrMcDreamy
- · Replies 2 ·
The domain of a composite function
- flashgordon
- · Replies 6 ·
How Does a Man Walking on a Merry-Go-Round Affect Its Motion?
- asafbuch
- · Replies 4 ·
Find the frequency of oscillation
- uriwolln
- · Replies 2 ·
Q. How can I solve this kinematics and projection problem?
- aurao2003
- · Replies 2 ·
Find Frequency of Oscillation for Rod with Mass & Length Attached to Springs
- uriwolln
- · Replies 2 ·
What is the lowest gravitational Bohr radius in terms of light years?
- annorax
- · Replies 2 ·
Gravitational field for 2 particles
- Symstar
- · Replies 2 ·
What is the current in each resistor and the power delivered by the battery?
- swar0175
- · Replies 1 ·
Understanding the Equation Y = mx + b in Position-Time Graphs
- pdot
- · Replies 4 ·
Current and electric field strength question
- downwithsocks
- · Replies 5 ·
Block on an inclined plane, given mass and angle find acceleration
- dhymas
- · Replies 2 ·
How Do You Calculate Surface Charge Density Without Knowing Plate Dimensions?
- flyingpig
- · Replies 11 ·
Atwood Machine, weight of the string
- melvis
- · Replies 1 ·
Electric Fields and Gauss' Law with a Conducting Sphere
- soccersquirt8
- · Replies 3 ·
Calculating Time for Guys to Go from A to C in Cart
- aeromat
- · Replies 5 ·
Spring Constant and Compression Problem
- bbreezy
- · Replies 5 ·
Solving F = MA: Finding Force When Mass and Acceleration Are Given
- iliekpie
- · Replies 4 ·
How Do You Calculate Mechanical Energy Lost Due to Friction on a Slide?
- bbreezy
- · Replies 1 ·
2-d Kinematics (Need to verify solution)
- stressedgirl
- · Replies 16 ·
How can I solve this automobile physics problem involving a helium balloon?
- Hellsing834
- · Replies 2 ·
Calculating RMS Speed of Molecules in a Compressed Gas
- WolfeSieben
- · Replies 10 ·
Charged particle moving through an electric field
- TommyS123
- · Replies 7 ·
What is the upward force exerted on the board by the support?
- alfredo24pr
- · Replies 3 ·
How Do You Calculate Energy Harvested from a Shaken Electromagnet Device?
- Chip41
- · Replies 1 ·
Not sure if I'm understanding mechanical energy correctly?
- jle1092
- · Replies 6 ·
What Is the Cathode Metal in This Photoelectric Experiment?
- btbam91
- · Replies 1 ·
Kinematics, Position time Graph.
- pdot
- · Replies 5 ·
Force and Acceleration Question
- man0005
- · Replies 6 ·
Soda Warming in a Room: How Long Does it Take?
- moonman239
- · Replies 1 ·
Calculate the percent difference of free fall acceleration.
- lokobreed
- · Replies 1 ·
Vector Addition - Grade 12 part 3
- smittyj
- · Replies 2 ·
Apparent Weight and Newtons Second law Problems
- thisismyacc
- · Replies 4 ·
How Accurate is the 1/2gt² Formula for Calculating Drop Height?
- Greiver
- · Replies 2 ·
Disk with constant angular acceleration
- Bad Vibration
- · Replies 4 ·
Kirchoff's Law Question; I'm very close
- eriadoc
- · Replies 1 ·
Masses and inclined plane with friction
- nynja
- · Replies 2 ·
Tension in a Simple Pendulum: Calculating Tension at Rest and at an Angle
- gmmstr827
- · Replies 1 ·