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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Find the value of a capacitor given percent of the initial value
- rocapp
- · Replies 1 ·
How Do You Calculate the Torsional Constant of a Wire?
- Robertoalva
- · Replies 4 ·
What is the Ratio of Resistances in a Series Circuit with 20% Power Dissipation?
- KidCudi11
- · Replies 1 ·
Amount of time taken for truck over 5.0km
- icesalmon
- · Replies 1 ·
Electrical: Reduce the expression to the form V_mcos(wt+theta)
- Northbysouth
- · Replies 3 ·
Grade 11 Physics Projectile Motion Question
- mmChocolate
- · Replies 4 ·
Conservation of momentum with sprins
- Matt_h
- · Replies 1 ·
Significant Digits Ruler -To what decimal point
- vvfrn3
- · Replies 3 ·
What Exactly is Thermal Energy?
- Nexu
- · Replies 1 ·
Compound microscope focal length
- Cataklyzm
- · Replies 2 ·
Calculate the speed of a body which slides through a string
- sv_heavymetal
- · Replies 2 ·
Calculating amplitude of pendulum
- chicagobears34
- · Replies 5 ·
Moment of Inertia - Swinging arms
- elemis
- · Replies 4 ·
What are the reactions and forces in a pin-jointed framework?
- MMCS
- · Replies 6 ·
Capacitor in a Parallel Circuit
- PhotonTrail
- · Replies 2 ·
Hollow spherical earthed conductor
- @mit
- · Replies 1 ·
What is the internal energy of 8.0 g of argon gas at a temperature of 100 K?
- kingstar
- · Replies 1 ·
Electrical Resistance, Current and Voltage in Parallel and Series
- Felchi
- · Replies 9 ·
How do you calculate the magnetic field strength in a coiled wire?
- Ryoblck
- · Replies 18 ·
Two dimensional relative motion; boat and river problem
- physicsstdnt
- · Replies 8 ·
Interference from two radio antennae - simplistic and workings include
- elemis
- · Replies 6 ·
Routine and simplistic Bragg law question - Just need confirmation.
- elemis
- · Replies 3 ·
Different tensions in a pulley system and acceleration
- fredrogers3
- · Replies 8 ·
Change in the acceleration of Gravity given resistance
- jackthompson
- · Replies 1 ·
IPA Potential Energy Approximation
- TerraForce469
- · Replies 13 ·
Physics - Inclined Plane - Experimental Investigation
- Christine L
- · Replies 3 ·
PVC arch bridge design with 28 feet of material
- Tesla42
- · Replies 4 ·
Maximum torque from weight on unicycle pedal
- SherlockOhms
- · Replies 7 ·
Maximum frictional force experienced and the acceleration
- gerard.caleb
- · Replies 6 ·
The figure shows a PV diagram for 2.69 mole of oxygen gas in a sealed
- billsauce
- · Replies 1 ·
Two people on a boat(center of mass)
- Toranc3
- · Replies 16 ·
Difference between elasticity and Young's modulus
- carnot cycle
- · Replies 3 ·
Apparent Height in a Swimming Pool
- rmcgovern
- · Replies 2 ·
Gravitational field strength of 0
- inuyasha555
- · Replies 1 ·
Work and Energy (Kinetic Energy/Grav. Potential Energy)
- kitty075
- · Replies 4 ·
Object Height In a Plane Mirror
- rmcgovern
- · Replies 2 ·
Friction and blocks, pulling force resolving
- caspernorth
- · Replies 5 ·
Tension and Fundamental frequency
- Big-Daddy
- · Replies 1 ·
How do you find frequency given this wave graph?
- cmkc109
- · Replies 5 ·
Mechanical advantage of catapult with wheel, axle, lever and crank
- dbmorpher
- · Replies 1 ·
Finding acceleration from potential energy at x = 0.60 m
- tony873004
- · Replies 3 ·
Finding vertical velocity at highest point in trajectory
- honey.s
- · Replies 3 ·
Velocity and acceleration when Dave turns around
- whitehorsey
- · Replies 7 ·
Resistor in a Circuit with varying resistance.
- Jonnyto
- · Replies 4 ·
Kirchoff's Rule(How do I find equivalent resistance?)
- jawhnay
- · Replies 5 ·
Best fit value of eddy thermal diffusivity
- rico22
- · Replies 6 ·
Resistance of a Copper Wire with initial and final radius
- jawhnay
- · Replies 8 ·
Calculating Energy Stored in a Fully Charged Battery
- aziiri
- · Replies 1 ·
What is the phase of the SHM at that point
- Voltrical
- · Replies 1 ·
Pressure drop in air duct with area reduction from 0.75 to 0.20 m²
- DylanW
- · Replies 1 ·
Find the angles for the basketball throw, projectile problem
- gpmattos
- · Replies 3 ·
Rotational and angular speed problem
- freshcoast
- · Replies 1 ·
Which diagram below best representsthe shape ofthe rope when both puls
- cmkc109
- · Replies 1 ·
Newton's Three Laws: 1st and 3rd
- whitehorsey
- · Replies 2 ·
Baseball runner asking for velocity to an out
- Robertoalva
- · Replies 2 ·
For this instant calculate the magnitudes of the force F and torque M
- Northbysouth
- · Replies 1 ·
Finding Velocity with Kinetic Energy.
- kencamarador
- · Replies 3 ·
Parametric Equations of Keplerian Orbit
- derravaragh
- · Replies 7 ·
Maximizing Angular Velocity to Prevent Slipping in a Rotating Cylinder Ride
- lemaitre
- · Replies 5 ·
How Do You Calculate Average Angular Acceleration with Axis Orientation Change?
- Aseri
- · Replies 1 ·
Geometrical Optics (lens and refraction)
- songoku
- · Replies 7 ·
Block on inclined plane with 10 N friction, no mass given
- Neilthe4th
- · Replies 2 ·
Solving for Speed of a Moving Car with Sound Frequency
- Jbreezy
- · Replies 5 ·
Can we accurately predict the speed of light using the index of refraction?
- bowlbase
- · Replies 2 ·
Find the max induced EMF in the loop by the changing loop
- SpringWater
- · Replies 5 ·
Estimate the fundamental frequency of resonance sound induced by blowi
- cmkc109
- · Replies 1 ·
Calculate the Tension and Angular Acceleration in Log After Release
- Northbysouth
- · Replies 1 ·
Comet Elliptical Orbits Question
- Chaso
- · Replies 6 ·
What is the valance and conduction band?
- Levi Tate
- · Replies 2 ·
Finding the Charge on a Capacitor in a Circuit
- pietastesgood
- · Replies 13 ·
Dog walking on a raft on water then suddenly halting
- totallyclone
- · Replies 3 ·
How do I find the tension in two cables holding up a sign at a 50 degree angle?
- joshuajen
- · Replies 5 ·
Contiuation Kirchhsoffs Circuit Problem
- Pruddy
- · Replies 2 ·
Cyclist coasting down a hill cons. of energy
- totallyclone
- · Replies 4 ·
Estimating the energy of an emitted photon in gamma decay
- dungonyu
- · Replies 5 ·
How does water depth affect diffraction through a slit?
- Deathnote777
- · Replies 8 ·
How Do You Solve This 3D Forces and Moments Problem?
- Wesc
- · Replies 1 ·
What is the Kinetic Energy of a Projectile Just Before Impact?
- RuthlessTB
- · Replies 6 ·
Average acceleration of a rugby player sprinting for 3.27 seconds
- honey.s
- · Replies 1 ·
What are the forces acting on the chandelier?
- cmkc109
- · Replies 4 ·
How Do You Calculate Time Along a Path in Polar Coordinates?
- vmedica
- · Replies 7 ·
Finding kinetic friction on a 26° inclined plane with deceleration
- salmacho
- · Replies 7 ·
Apparent power, impedance and alternating current.
- 0fibonacci1
- · Replies 1 ·
Period and angular frequency problem.
- 0fibonacci1
- · Replies 1 ·
Calculating Effective Current, Maximum Current, and Current at Time 1s
- 0fibonacci1
- · Replies 1 ·
Find Photons per second on the eye from a source a distance away
- rocapp
- · Replies 7 ·
Polarizer angle and convex mirror magnification problems
- riseofphoenix
- · Replies 19 ·
Finding electric field and force at a point
- cherry_cat
- · Replies 1 ·
Kirchhsoff's Circuit Law (Loop Rule Equation)
- Pruddy
- · Replies 6 ·
Doppler Effect Question regarding wavelength changing
- Shahzad7317
- · Replies 2 ·
Determine the Acceleration of the of the Initally Stationary Block
- Northbysouth
- · Replies 5 ·
Simple Coulomb's Law Question
- p.ella
- · Replies 7 ·
Finding mass of a nonuniform sphere, given a function for density
- Tubefox
- · Replies 3 ·
Torque from weight on extended leg at 90 degrees
- cmkc109
- · Replies 1 ·
Velocity of air moving past a duct.
- Jbreezy
- · Replies 1 ·
Is F = Δp/Δt Equal to F = ma in This Algebra Question?
- JoshuaOB
- · Replies 2 ·
Rotational Motion of a toy airplane
- SChiO
- · Replies 1 ·
What is the Capacitance of a Charging RC Circuit with Known Time and Resistance?
- Kashuno
- · Replies 2 ·
How Does Moving a Wire Through Earth's Magnetic Field Generate Current?
- Mashfeek
- · Replies 1 ·