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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Determine the direction of vector
- kgianqu2
- · Replies 5 ·
G by free fall experimental error
- Darth Frodo
- · Replies 1 ·
Calculating work done in a piston
- Nuclear_eng
- · Replies 17 ·
Setting up Lorentz transformation for two flashing lights
- cubano07
- · Replies 2 ·
Sum of capacitors connected in Series and in Parallel
- kakadas
- · Replies 10 ·
How Much Current Sustains the Suspended Copper Wire?
- PeachBanana
- · Replies 2 ·
How far from the dam should a skip-bombing bomb be released?
- wangliqin_loc
- · Replies 6 ·
Relationship between changing a wire's diameter and change in temp
- alanajames
- · Replies 1 ·
Vi for Constant Acceleration Kinematics
- diego1404
- · Replies 2 ·
Projectile Motion Quarterback Throw
- wizzpowa
- · Replies 1 ·
Solving for Net Charge on Inner Surface of Conducting Shell
- dipolarBear
- · Replies 2 ·
Diameter of football player's Piston
- G_unit
- · Replies 1 ·
Einstein's Box Change in Centre of Mass
- unscientific
- · Replies 1 ·
Can You Calculate When the Cop Catches the Speeder in This Physics Challenge?
- jayjay12077
- · Replies 5 ·
Problem about light refraction, critical angle ?
- Douna2nd
- · Replies 1 ·
Check my vector work for exam practice
- phunphysics2
- · Replies 3 ·
Find tension in two ropes supporting a 55N weight at 45° and 75°
- Darkfire25
- · Replies 2 ·
How to find the angle that will pull the most weight
- Erratus
- · Replies 3 ·
Baseball hit and caught at same height, passing wall at two times
- tuzobarca
- · Replies 2 ·
Car Crash Motion in 1 dimension Question
- Vroc
- · Replies 16 ·
Thermal expansion (and the Michelson Morley experiment)
- Pi Face
- · Replies 3 ·
How to Calculate Current in a Solenoid with Given Field and Dimensions?
- PeachBanana
- · Replies 2 ·
Projectile Motion- Deriving equation
- student2013
- · Replies 1 ·
Relating Electric Field and Magnetic Field
- PeachBanana
- · Replies 5 ·
What is the Atomic Force Constant in a Metal Bar Under Tension?
- R2Zero
- · Replies 1 ·
Calculating distance (and percent error) using parallax
- Falala
- · Replies 1 ·
How Do You Calculate the Velocity of a Counterweight Relative to an Elevator?
- deveny7
- · Replies 3 ·
Calculating Center of Mass: Pendant Sector with Holes
- phospho
- · Replies 3 ·
Hurricane Evacuation, how l long will it take to evacuate100 000 people?
- chrisman10
- · Replies 16 ·
Hydrogen + oxygen model rockets
- Cinitiator
- · Replies 6 ·
How do I solve for acceleration using the equation v^2 = v0^2 + 2axΔx?
- valerieangel
- · Replies 2 ·
How much time does it take to change your displacement by 25.0m east?
- valerieangel
- · Replies 4 ·
What is the maximum height of the stadium at its back wall?
- maiad
- · Replies 4 ·
Projectile motion problems with angles and range
- tahmed5
- · Replies 6 ·
Acceleration from Kinetic energy.
- Bryn_7
- · Replies 15 ·
Lift required to sustain a refueling jet
- max1546
- · Replies 1 ·
Bohr's model electron transition paths
- krytek
- · Replies 4 ·
Force applied to a mass of an inclined plane with mass
- JordanGo
- · Replies 1 ·
Conceptual Question for Fictitious Forces
- BlueCardBird
- · Replies 6 ·
Acceleration with two wooden crates
- trolling
- · Replies 4 ·
Rocket with constant acceleration reaching 80m in 3 seconds
- frostcloak
- · Replies 5 ·
Thermodynamics Pressure Calculation
- mexqwerty
- · Replies 3 ·
Projectile motion with air resistance from slingshot
- proctortom
- · Replies 1 ·
Solving the A-String Puzzle: Calculating Mass from Length and Tension
- cumminatyou93
- · Replies 1 ·
Proof that v'(t) is orthogonal to v(t)
- Nano-Passion
- · Replies 2 ·
Solving an Initial Velocity Problem for a Basketball Player
- rockersdash
- · Replies 2 ·
Proving that force and acceleration are proportional
- adam199
- · Replies 2 ·
Relating Electric Field and Voltage in an Insulating Sphere
- NeonJay
- · Replies 4 ·
Acceleration and tension of pulley system
- Fizic
- · Replies 1 ·
Calculating Mass Needed to Ground Hot Air Balloon
- wislar
- · Replies 3 ·
Velocity problem determining x and y components
- brandon133
- · Replies 3 ·
Three blocks suspended on 2 pulleys to form a M shape
- lksmith17
- · Replies 15 ·
Why different projectile equations give different heights for water from hose
- Toranc3
- · Replies 4 ·
How much does Earth's mass increase from absorbed sunlight in one day?
- Engineergirl2
- · Replies 3 ·
Finding reaction forces on a 25 kg beam with pin and roller supports
- wilson11
- · Replies 3 ·
Calculating Height of Building w/ Sound Speed
- Tereza
- · Replies 11 ·
Why does a pin joint have force constraints in the z direction?
- theBEAST
- · Replies 9 ·
Coulomb's Law problem with three charged points
- NotCarlSagan
- · Replies 9 ·
3 weights suspended on 2 pulleys to form a M shape
- lksmith17
- · Replies 3 ·
Potential difference to bring a proton to rest
- foreignfishes
- · Replies 2 ·
Integration of an equation to find displacement
- AryRezvani
- · Replies 1 ·
Solve Sliding Hockey Puck Problem: Coeff. of Kinetic Friction
- kchurchi
- · Replies 3 ·
Ionization Energy of Lithium problem
- wee00x
- · Replies 4 ·
How Do R5 and R6 Affect Vo and ia in a Circuit with Parallel Resistors?
- Cisneros778
- · Replies 2 ·
Electrostatics: Using a conducting string suspension.
- Dieinhell100
- · Replies 1 ·
Normal force on cylinder and friction for stick-cylinder equilibrium on incline
- MeMoses
- · Replies 7 ·
Flux through a cylindrical wedge surface
- Rombus
- · Replies 1 ·
Positioning Device Based On Thermal Expansion
- CallMeShady
- · Replies 2 ·
Electric field due to two charged particles problem (includes solution)
- s3a
- · Replies 5 ·
Solving Basketball Parabola Puzzle: Initial Velocity at 35°
- rockersdash
- · Replies 1 ·
Ball collision when one is dropped and the other thrown up
- PhizKid
- · Replies 12 ·
Record travel along a straight path
- rlk626
- · Replies 1 ·
Why doesn't gravitational PE equal spring potential energy?
- evanave
- · Replies 12 ·
Tension between two accelerating blocks
- Fizic
- · Replies 15 ·
Basic Impulse-Momentum Question for a Biomechanics Class
- rand02008
- · Replies 4 ·
Calculate Lyman, Balmer, and Paschen Spectral Intervals
- b0094
- · Replies 2 ·
How does the size of He- compare to that of a neon atom?
- wee00x
- · Replies 13 ·
Finding vector B to make resultant with zero x component
- AryRezvani
- · Replies 2 ·
Velocity vectors for an object dropped from a moving plane.
- flamemonkey
- · Replies 1 ·
What Would Be the Mass of an Iron-Dense Empire State Building?
- promeus
- · Replies 5 ·
Kinematics Problem (Find Speed)
- airking95
- · Replies 12 ·
How many ping pong balls can fit in a typical-sized room without being crushed?
- astrostar2
- · Replies 2 ·
Kirchhoff's rules for resistors in parallel
- coleman221
- · Replies 2 ·
Electric Potential due to a dipole
- 127
- · Replies 2 ·
Use the node-voltage to find v1 and v2 in the circuit below
- Firben
- · Replies 14 ·
Thevenin circuit Max power across Load resistor
- EricSomin
- · Replies 3 ·
How Do You Calculate Energy Loss in a Damped Harmonic Oscillator?
- captainemeric
- · Replies 6 ·
What Is the Torque When the Line of Force Intersects the Center of Rotation?
- medo_andnino
- · Replies 11 ·
How to Calculate Projectile Motion for a Marble in a Lab Experiment
- kimichi
- · Replies 2 ·
What is the optimal design for a buoy tether in a large river?
- Binkai
- · Replies 2 ·
How Do You Calculate Currents ib and ia in a Circuit with Multiple Resistors?
- Cisneros778
- · Replies 2 ·
Solve 2D Motion Q: Wiley E Coyote & Roadrunner
- oreosama
- · Replies 1 ·
Derivation of Critical Volume, Temperature and Pressure for the VDW equation
- shihabdider
- · Replies 6 ·
Free body diagram for block A with friction and tension
- brinthanb
- · Replies 1 ·
Finding static and kinetic friction coefficients for a 25 kg block
- physics=world
- · Replies 8 ·
Stefan-Boltzman Law Proof with Regards to Solar Radiation
- walterwhite
- · Replies 4 ·
How Do You Calculate Acceleration and Travel Distance from Velocity-Time Graphs?
- New2Science
- · Replies 3 ·
Complex Kinematic problem for grade 12 phyiscs
- makio
- · Replies 1 ·
Increase in voltage = decrease in current?
- chwl3
- · Replies 6 ·
The Electric field due to a charged rod
- Unbounded
- · Replies 13 ·