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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Maximum Tension in Vine for Tarzan and Jane Pendulum
- estie
- · Replies 10 ·
Electric field of charged particles problem
- kevinf
- · Replies 7 ·
Velocity and Acceleration of the Center of Mass?
- Scarlitt14
- · Replies 3 ·
What is the magnitude of the magnetic field .
- superjen
- · Replies 8 ·
Need Help with a Basic Fluids Problem - Buoyancy and Archimedes' principle
- Jite
- · Replies 3 ·
Specific heat problem simple, but im missing something ?
- jenzao
- · Replies 9 ·
Mass of charged particle in magnetic field
- rinarez7
- · Replies 1 ·
Calculating Acceleration of a Cyclist on a Starting Ramp
- jaron
- · Replies 6 ·
True or False:Gravitation & Circular Motion Concepts
- science_rules
- · Replies 2 ·
Conservation of Momentum of cannonballs
- okgo
- · Replies 1 ·
Multiple Choice: A Ball Rolls Off the Edge & Forces on an Object
- memoi567
- · Replies 1 ·
How Do You Calculate Tension in Strings Supporting a Meter Stick in Equilibrium?
- dance0486
- · Replies 1 ·
Calculating Angular Momentum and Torque for a Particle in the XY Plane
- ChazyChazLive
- · Replies 4 ·
I'm having trouble with this homework problem Current & Magnetic Field
- JMoore0150
- · Replies 4 ·
Need help finding unique resistor combinations
- tiger00
- · Replies 3 ·
Wire Loops, Current, Magnetic Field, & Straight Wire HELP
- JMoore0150
- · Replies 1 ·
Solving Torque/Force Problem: Find F & R
- RileyAllen
- · Replies 1 ·
Calculating Forces in Elevator: Rest, Up 3m/s, Down 4m/s2, Up 4m/s2
- science_rules
- · Replies 19 ·
Law of conservation of energy problem
- leapoldstotch
- · Replies 2 ·
What is the Wavelength of an FM Radio Wave at 107.5 MHz?
- shimizua
- · Replies 6 ·
Integrating Torque With Force as a Function of Radius
- ztluhcs
- · Replies 3 ·
Intensity of the incident light
- vrobins1
- · Replies 1 ·
Electric Potential (Charged Plane)
- GDGirl
- · Replies 1 ·
AP Physics Help (Ski-er on Slope)
- weiseguy
- · Replies 7 ·
Physics resit soon help a VERY simple graph problem
- tommyleehutch
- · Replies 1 ·
Q/m of a particle in a straight line.
- zyphriss2
- · Replies 1 ·
How Do Lorentz Transformations Confirm a Rocket's Motion in Special Relativity?
- Onias
- · Replies 1 ·
What Speed Should You Push a Box of Nails Down a Roof?
- Sethwell
- · Replies 1 ·
Rotational motion homework question
- fusionxtc
- · Replies 1 ·
Find Pendulum Length from Kinetic Energy & Angle Graph
- pingpong240
- · Replies 2 ·
What equation to use for projectile motion problems
- pickle37
- · Replies 4 ·
Need to find the current in a wire
- seagoing
- · Replies 2 ·
Cant determine vrms, even though equations are all correct.
- jenzao
- · Replies 2 ·
Free-falling objects & how mass is effected
- drinkingstraw
- · Replies 10 ·
Electric Fields Question (deflection? :S? and more)
- 037810
- · Replies 7 ·
Solving Homework: Simple Pendulum & Clock Error
- nns91
- · Replies 10 ·
Pendulum-displacement-amplitude of vibration
- kcmccraw
- · Replies 2 ·
Kinetic energy's dependence on velocity.
- Yuqing
- · Replies 1 ·
Similar to calculating distance of photon traveling in space?
- adc22
- · Replies 3 ·
To what depth will the bullet penetrate the block in this case?
- yb1013
- · Replies 2 ·
Can a Two-Slit Interference Experiment Display a Particle Model of Light?
- pillanoid
- · Replies 6 ·
Calculating Tension for Fence Post Straightening
- fableblue
- · Replies 12 ·
How long will it take the zinc to reach the desired thickness?
- rayhan619
- · Replies 4 ·
Static Equilibrium Climber Problem
- craig22
- · Replies 1 ·
How Fast Must the Race Car Go in the Last 2 Laps to Qualify?
- katyross
- · Replies 1 ·
Slits per cm on diffraction grating
- msk172
- · Replies 5 ·
Spring constant/ block question
- ladiesman2271
- · Replies 14 ·
Minimum angle required for resolution
- msk172
- · Replies 7 ·
Who Ages More: Mork or Mindy at 99.1% Light Speed?
- masonlane
- · Replies 1 ·
How Is the Angular Width of a Central Diffraction Maximum Calculated?
- msk172
- · Replies 1 ·
Solve Ampere's Law Problem for Uniform Current Density
- Crazy Gnome
- · Replies 1 ·
Calculating the Distance Between Interference Maxima: Yellow Light
- SEEDS
- · Replies 1 ·
Solving Gas Expansion in Equal Containers
- emily710
- · Replies 2 ·
Electric Potential (charged conducting sphere)
- GDGirl
- · Replies 8 ·
Impulse and Momentum: Gernade Problem
- Avis
- · Replies 3 ·
Electric Field of a Uniformly Charged Ring: Finding Emax Along the Axis
- physics_geek
- · Replies 7 ·
Calculating Acceleration, Work, and Power for a Sled Pulled at an Angle
- Draggu
- · Replies 2 ·
A reversed funnel problem (static fluid mechanics)
- fluidistic
- · Replies 9 ·
What Equation Calculates Magnetic Field Strength in a Solenoid?
- jimbo71
- · Replies 2 ·
How far behind the front wheels is the center of mass located?
- superjen
- · Replies 5 ·
Impulse Needed to Stop a Moving Object Using Momentum and Newton's Laws
- phys99
- · Replies 5 ·
Why do photoelectric effect electrons have different kinetic energies?
- confuse
- · Replies 5 ·
Early test flights for the space shuttle used a glider
- kritzy
- · Replies 3 ·
Radio Telescope at Arecibo, Puerto Rico
- JSapit
- · Replies 2 ·
Box landing in rolling container: energy and momentum
- Lord Dark
- · Replies 6 ·
Calculating Total Acceleration in a Tennis Serve
- mattmannmf
- · Replies 5 ·
Solving Momentum and Energy Equations for Elastic Collision | Help Needed
- vorcil
- · Replies 13 ·
How Do You Determine Quantum Numbers from Excitation Potentials?
- Davio
- · Replies 5 ·
Law of cosines/ Parallelogram rule
- fableblue
- · Replies 6 ·
How Does Thomson's Experiment Calculate Electron Deflection?
- xinlan
- · Replies 21 ·
Relationship between work and kinetic energy
- lemonpie
- · Replies 2 ·
Calculating Intensity of Unpolarized Light with Polarizers
- hardwork
- · Replies 10 ·
How Can I Improve My Understanding of Physics Equations Like Boyle's Law?
- WannabChemist
- · Replies 1 ·
How Is Energy Transferred in a Spring-Launched Block on an Inclined Plane?
- wanamaa
- · Replies 4 ·
For a science experiment you need to electroplate
- rayhan619
- · Replies 12 ·
How much work is done when moving a charge?
- iceman2048
- · Replies 2 ·
Gravitational Potential Energy of a Child in a Swing: Ropes Horizontal"
- aaronb
- · Replies 1 ·
Why Does Total Internal Reflection Not Occur at the Oil-Water Interface?
- roeb
- · Replies 1 ·
Calculate Strain of a Cable: 10-m Long w/ 25-N Sign
- pippintook
- · Replies 4 ·
Magnet experiment performed by a math major (yikes)
- tennesseewiz
- · Replies 3 ·
Spinning disk revolutions homework
- mattmannmf
- · Replies 1 ·
Angular Speed of Electric Fan: Calculations & Results
- mattmannmf
- · Replies 10 ·
Angular Displacement at Specific Times
- mattmannmf
- · Replies 6 ·
Particle, kinetic energy, decay point
- Yroyathon
- · Replies 5 ·
Spring Constant (this is really easy, I'm just dumb haha)
- pippintook
- · Replies 2 ·
What is the angular velocity of the shutter?
- mattmannmf
- · Replies 11 ·
Calculating Speedboat's Turn Dynamics
- mattmannmf
- · Replies 1 ·
What Determines the Direction of a Red Puck After a Collision?
- ada0289
- · Replies 1 ·
Rocket Propulsion Gas Injection
- ada0289
- · Replies 1 ·
Magnitude and Direction of Velocity (projectile motion)
- science_rules
- · Replies 9 ·
How to find the angle of attack?
- Newton V
- · Replies 1 ·
Electric field of a sheet of charge
- bigevil
- · Replies 1 ·
How High Does the Block Reach on a Moving Ramp?
- datdo
- · Replies 7 ·
Question about (KINETIC ENERGY AND WORK)
- Lord Dark
- · Replies 4 ·
Center of Mass of a Hollow 2D Triangle
- datdo
- · Replies 3 ·
"Calculate Angular Momentum of Rotating Barbell
- luckylauren
- · Replies 1 ·
How Is Work Calculated on a Mass on a Frictionless Track?
- lemonpie
- · Replies 4 ·
Understanding Current Direction and Voltage Drop in Kirchoff's Laws
- muffinccc
- · Replies 6 ·