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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How can I use nodal analysis to solve for V in this circuit?
- ptlffrty
- · Replies 6 ·
Answer: Potential Difference Va-Vb for 4.3 nC Particle in 225 N/C Field
- phy112
- · Replies 3 ·
What is the potential difference Vad-Vac?
- dwstrait
- · Replies 2 ·
Electric Field: not quite getting the correct answer
- Seraph404
- · Replies 1 ·
Finding magnitude and direction of equilibrant.
- Obama
- · Replies 1 ·
Loop the Loop (circular motion)
- Trentonx
- · Replies 3 ·
Multiple choice questions about SHM
- phys1618
- · Replies 4 ·
Lightning strike: electric field, capacitance and power
- bkl4life
- · Replies 1 ·
Inner and Outer Radius of a Sphere
- jumbogala
- · Replies 3 ·
Rock tossed straight up-Velocity question
- xgoddess210
- · Replies 4 ·
Photoelectric effect compared to the particle theory
- *intheclouds*
- · Replies 1 ·
How Do You Calculate Voltage Drops in a Simple Circuit?
- dasblack
- · Replies 6 ·
Magnetic and Electric Fields - Theory
- starless.aeon
- · Replies 1 ·
Circular motion (magnitude of radial acceleration)
- mohdhm
- · Replies 7 ·
Finding hawk shadow speed using sine rule
- camboguy
- · Replies 1 ·
Gauss: Conducting Spherical Shell w/ Point Charge
- calvert11
- · Replies 1 ·
Energy stored in parallel-plate capacitor with changing plate separation
- gunitsoldier9
- · Replies 6 ·
Two resistors and total resistance
- bkl4life
- · Replies 6 ·
How Is Object Distance Calculated for Image Reduction with a Diverging Lens?
- DMOC
- · Replies 3 ·
Gauss's Law- Flux through surface
- chipperh
- · Replies 4 ·
Proving EM Waves Equations: E = Emsin(kx-ωt) and B = Bmsin(kx-ωt)
- noppawit
- · Replies 5 ·
Calculating Flux for Hemispheres of Different Radii
- Seraph404
- · Replies 3 ·
Fluid question (includes bears)
- yayitsrobby
- · Replies 13 ·
How Does Gauss's Law Apply to Multiple Charged Sheets?
- Seraph404
- · Replies 1 ·
Mass sliding down an inclined plane (True/False)
- FAJISTE
- · Replies 2 ·
Why Do Large Sparks Jump from Leather Belts in Machinery?
- bkl4life
- · Replies 4 ·
Twin traveling to 4.2 light-year star ages 5.2 years less
- Nitric
- · Replies 4 ·
How do you find the direction and magnitude from a nucleus?
- itsmarasilly
- · Replies 1 ·
Elastic potential energy problem needs to be checked
- phys1618
- · Replies 5 ·
Work/Energy vs. Force Questions
- adhishyajnik
- · Replies 2 ·
Hockey puck rebound acceleration with 26 m/s and 21 m/s
- mattstjean
- · Replies 4 ·
How Do You Draw a Free Body Diagram for a Box and Truck in Motion?
- plshelpme
- · Replies 1 ·
Temperature variation of resistance
- dasblack
- · Replies 2 ·
In a certain region of space, the electric field E is uniform.
- xxaznitex
- · Replies 5 ·
Electric field from two charges at (0.506, 0.506)
- xswtxoj
- · Replies 14 ·
Just need Simple Harmonic Motion problem checked
- phys1618
- · Replies 11 ·
Request Assistance with Gauss's Law- Surface charge of sphere
- chipperh
- · Replies 3 ·
How to Determine Amplitude and Maximum Speed in Spring Motion?
- Vengeance
- · Replies 7 ·
Collision Physics: Solving for Angle Between Initial Velocities
- sameapple
- · Replies 21 ·
Power dissipated in the inductor
- noppawit
- · Replies 3 ·
Why Does Electric Potential Vary Inside and On the Surface of a Charged Sphere?
- erinec
- · Replies 1 ·
Circular motion and static friction of earth
- brownie24
- · Replies 1 ·
Net electric field from two parallel line charges
- Seraph404
- · Replies 1 ·
What is the acceleration of a crate with two applied forces and friction?
- gharada
- · Replies 2 ·
Question why is there a negative sign
- camboguy
- · Replies 1 ·
Identifying parent and daughter nuclides in Ga-64 and Zn-64 decay
- erinec
- · Replies 4 ·
Throwing Rocks: Analyzing Horizontal & Vertical Motion
- liz777
- · Replies 2 ·
What is the Relationship Between Force and Equilibrium in a Tug-of-War?
- zell_D
- · Replies 2 ·
What is the work required to arrange charged objects in a right triangle?
- phy112
- · Replies 4 ·
Pushing at a downward angle with friction
- casedogg
- · Replies 4 ·
How do you estimate the mass of a nucleus?
- erinec
- · Replies 1 ·
Distance between two electrons where electrostatic force cancels gravity
- xswtxoj
- · Replies 11 ·
How Is Initial Power Calculated in a Plutonium-238 Powered Pacemaker?
- erinec
- · Replies 1 ·
What is the speed and direction of the wind in this vector problem?
- jemerlia
- · Replies 9 ·
Electric Force/ Electrical Fields
- xswtxoj
- · Replies 14 ·
Momentum Problem involving projectile.
- fjyuirt
- · Replies 1 ·
How Do You Calculate Forces and Velocities in Physics Problems?
- chops369
- · Replies 1 ·
What is the magnitude of the force of repulsion between them?
- xswtxoj
- · Replies 8 ·
How Do You Determine the Direction of a Moment in Statics?
- th3plan
- · Replies 1 ·
What is the Resultant Force of Multiple Vectors Acting on a Point?
- roxxyroxx
- · Replies 2 ·
Calculating Next 3 Harmonics of a Standing Wave
- Nano
- · Replies 3 ·
Determine the magnitude of the normal force exerted by the table
- cacaluch
- · Replies 5 ·
Find Vector Components: A (17, 27°), B (26, 75°)
- susyq232
- · Replies 1 ·
Minimum refractive index for total internal reflection in a prism
- crystalplane
- · Replies 1 ·
How Does Wave Speed Vary Along a Hanging Rope?
- phil ess
- · Replies 1 ·
Calculating Flux in Three Spherical Shells with Varying Charge Distributions
- Obama_US
- · Replies 3 ·
Boat wavelength oscillation problem
- phys1618
- · Replies 4 ·
Understanding Self-Induction: Calculating Current Growth Rate
- sagda_m2
- · Replies 1 ·
Why can't I divide both sides by cos in simple harmonic motion?
- connor415
- · Replies 6 ·
IR illuminator power from beam angle and area
- mchi5cf2
- · Replies 1 ·
Calculating Wavelength of Surface Waves on a Lake
- phys1618
- · Replies 4 ·
Minimum speed for ball to make rod do full rotation
- vladimir69
- · Replies 14 ·
Heat energy of a monatomic gas
- TFM
- · Replies 12 ·
HW: What is energy used? What is wattage?
- JerseyGirl
- · Replies 2 ·
Work on a proton in uniform magnetic field
- Elbobo
- · Replies 7 ·
Kinematics rock thrown up in air
- ankit arya
- · Replies 2 ·
Calculating Charge on 10cm Diameter Sphere: 3700V
- FuzzyDunlop
- · Replies 3 ·
How Hot Does a Flashlight Bulb Get When Turned On?
- wayneinsane
- · Replies 3 ·
Magnitude of Force on Q1 with Three Point Charges
- las90
- · Replies 3 ·
Finding specific heat of metal in three-object calorimetry problem
- discordplus
- · Replies 1 ·
What is the ratio of t to r in a set of equations involving p, q, r, s, and t?
- bluepillow
- · Replies 4 ·
Airplane position and velocity from two radar stations
- hkapoor
- · Replies 3 ·
What is the formula for determining wavelength in different mediums?
- proskier
- · Replies 2 ·
Adding a wave to a sine wave to create a cosine wave
- shintashi
- · Replies 2 ·
Finding Angular Velocity: Two Sphere Problem
- ritwik06
- · Replies 6 ·
Does a car's weight increase if its speed increases?
- wajed
- · Replies 3 ·
A very long uniform line of charge has a charge per unit length of 4.82 uC/m
- xxaznitex
- · Replies 1 ·
What is the maximum acceleration in m/s^2 the cart can undergo
- TG3
- · Replies 7 ·
Particle is moved - Work-kinetic energy
- Fendergutt
- · Replies 1 ·
Magnetic field solar wind question
- johnson.3131
- · Replies 1 ·
Two conducting hollow spheres, a point charge and electric field prob
- bocobuff
- · Replies 5 ·
How Do You Calculate Electric Potential Energy in a Multi-Charge System?
- synergix
- · Replies 1 ·
Newton's Laws of Motion on a rocket
- plshelpme
- · Replies 3 ·
Do Opposing Light Beams Pass Each Other at the Speed of Light?
- iPhysicsi
- · Replies 1 ·
Coulomb's law, balancing a ball with point charges
- theneedtoknow
- · Replies 3 ·
Why is the electric field between charged plates double the outside field?
- -EquinoX-
- · Replies 8 ·
Parallel resistanee is reciprocal of the sum?
- Lokhtar
- · Replies 1 ·
How Does Charge Distribution Affect Electric Field Inside a Shell?
- -EquinoX-
- · Replies 11 ·
Number of electrons added to a 10g silver pin for 1.00 mC charge
- jessedevin
- · Replies 7 ·
What are some different ways to find the thickness of aluminum foil?
- miss.fabulous
- · Replies 8 ·