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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Grounded circuit, 2 batteries and 2 resistors
- kamhogo
- · Replies 6 ·
Two balls thrown from a balcony up and down at the same speed
- Ab17
- · Replies 5 ·
Impulse or Momentum Challenging Question
- i_hate_math
- · Replies 6 ·
Rotating bar hanging on a spring (oscillation)
- JulienB
- · Replies 26 ·
Calculate the EMF induced in the square?
- hrf2
- · Replies 2 ·
Line charge creating induced emf and displacement current
- gsmtiger18
- · Replies 1 ·
Is the direction N 10° W or W 10° N for this net force?
- alexandria
- · Replies 6 ·
What speed threshold requires relativistic effects for a massive particle?
- amyy
- · Replies 7 ·
How do I use the tip-to-tail method to add vectors and calculate net force?
- alexandria
- · Replies 24 ·
Is Flow Rate in Open Channels Affected by Backpressure?
- foo9008
- · Replies 11 ·
A really confusing question on potential energy,
- i_hate_math
- · Replies 4 ·
Work done using time, velocity and mass?
- TDizzl
- · Replies 14 ·
Constant force but angle is increased, what happens to work
- Frankenstein19
- · Replies 1 ·
Calculating Net Force Using Vector Addition
- alexandria
- · Replies 7 ·
How do I calculate distance using Newton's Second Law for a puck on a stick?
- alexandria
- · Replies 21 ·
How to Combine Gradient Uncertainty with other Uncertainty?
- Banker
- · Replies 3 ·
Terminal Velocity of magnet down a copper tube
- krisal
- · Replies 1 ·
Applying Newton's Universal Law of Gravitation
- science_rules
- · Replies 1 ·
Why is the 60 W bulb brighter than the 100 W bulb in series?
- kamhogo
- · Replies 13 ·
Rotational Motion of a bowling ball
- PrettyLights
- · Replies 5 ·
Coupled spring pendulum (harmonic oscillation)
- JulienB
- · Replies 16 ·
What is the expression for pressure distribution in a rotating tornado?
- Raptor112
- · Replies 3 ·
Mechanics, Distance and speed question
- Gajan1234
- · Replies 8 ·
Difference in Brightness between Two Bulbs
- crastinus
- · Replies 2 ·
How Do You Calculate Tension in a Rope Pulling a Box with Friction and an Angle?
- Balsam
- · Replies 5 ·
Optimal Width of a rotating wheel
- lehnim
- · Replies 6 ·
How do I find the path of a particle from position vectors?
- LoveBoy
- · Replies 7 ·
Force on a charge due to charged sheet
- Yashbhatt
- · Replies 2 ·
Time period in harmonic oscillation.
- LoveBoy
- · Replies 3 ·
Angular Momentum of the particle.
- LoveBoy
- · Replies 3 ·
Kinematics involving two objects
- Ab17
- · Replies 3 ·
How Fast Was the Second Stone Thrown to Match the First at the Cliff Base?
- Ab17
- · Replies 2 ·
Force and Energy of a block on a spring as it compresses.
- Lebombo
- · Replies 3 ·
Find L and R given voltage at different rates of current change
- Am_o
- · Replies 3 ·
Doppler effect and signs of the equation
- RUphysics3
- · Replies 3 ·
Falling rotating sphere and displacements
- LoveBoy
- · Replies 10 ·
How to Determine the Velocity of Block A with Pulley Masses Included?
- That_EDGEy_KiD
- · Replies 3 ·
Stopping Distance affected by Mass of Cart on Inclined Plane
- Bapple
- · Replies 1 ·
What Determines the Meeting Point of Two Falling Stones?
- Ab17
- · Replies 5 ·
How Should Uncertainty Be Handled When Averaging Measurements?
- LCHL
- · Replies 5 ·
Height of tower given objects dropped from top at same time?
- Ab17
- · Replies 3 ·
Position of Final Image in Concave Mirror with Glass Block
- Volcano
- · Replies 13 ·
Rotational Velocity with 2 Gears
- PrettyLights
- · Replies 4 ·
Bernoulli equation with water tank flow rates
- lurifax1
- · Replies 3 ·
Are two objects in free fall hitting the water at the same time?
- Ab17
- · Replies 6 ·
Moment of inertia and torque of a yoyo
- JulienB
- · Replies 9 ·
Simple gravitational potential energy
- sireh
- · Replies 2 ·
Induced Surface Current in Conducting Plane, Dropped Charge
- Ichigo449
- · Replies 14 ·
Thevenin's circuit analysis. Multiple voltage sources
- Galviniser
- · Replies 6 ·
How Wide Is the Slit in a Diffraction Experiment with 450nm Light?
- cassey
- · Replies 1 ·
What gives rise to a magnetic moment in a proton/neutron?
- pbutter
- · Replies 7 ·
Calculate initial speed of an athlete - projectile motion
- Peter Halsall
- · Replies 15 ·
How Many 100W Bulbs Can Be Powered by Converting Water's Potential Energy?
- ROCKSTAR99
- · Replies 12 ·
Force and energy changes when a ship decelerates
- risa
- · Replies 3 ·
Calculating Tire Pressure Change with Temperature Increase
- Revengeance
- · Replies 2 ·
What are the Eigenvalues and Eigenkets of a Spin-1/2 System in a Magnetic Field?
- phys-student
- · Replies 6 ·
Angle for maximum horizontal range from a cliff
- RoboNerd
- · Replies 20 ·
Deriving capacitor charge Q(t)=Qmax(1-e^(-t/tau))
- kamhogo
- · Replies 14 ·
Penetration Depth Review - Exam Prep
- nmsurobert
- · Replies 3 ·
Destructive vs Constructive interference
- RUphysics3
- · Replies 2 ·
Radius of charged particle moving in magnetic field
- 1missing
- · Replies 1 ·
Dynamics Skier on a Slope Problem
- IbrahimA
- · Replies 9 ·
Atwood Machine Lab Homework: Solve for Moment of Inertia
- Jam51
- · Replies 5 ·
Negative Moment of Inertia from Atwood Machine Experiment?
- firefox
- · Replies 13 ·
Standing Wave Nodes and Interference on a Stretched String
- RUphysics3
- · Replies 1 ·
Simple Uncertainty/Sig Fig Question
- Badgeray
- · Replies 1 ·
Finding the random uncertainty of a set of values
- 123leo
- · Replies 3 ·
Derive the Analog of Gauss' law
- KT KIM
- · Replies 2 ·
Calculating acceleration using Newton's 3rd law
- timelesstrix0
- · Replies 10 ·
Bernoulli equation (watering can)
- JulienB
- · Replies 2 ·
Question of electricity net force
- toesockshoe
- · Replies 5 ·
Easy collision question, momentum and energy
- PoohBah716
- · Replies 3 ·
Kepler's law and angular momentum conservation problem
- RoboNerd
- · Replies 17 ·
Specific heat capacity of a metal at low temperature
- erisedk
- · Replies 8 ·
Acceleration and velocity of a mass attached to a sphere
- JulienB
- · Replies 5 ·
Kirchoff's Laws Problem Current
- WesT4N
- · Replies 11 ·
What is the definition of proper time interval according to the book?
- joryboy
- · Replies 1 ·
Angular momentum and moment of inertia
- JulienB
- · Replies 2 ·
What's the difference between Δ and d in physics ?
- Peter25samaha
- · Replies 12 ·
Harmonic oscillator with friction
- bubblewrap
- · Replies 13 ·
Will a cylinder or cone held at the bottom of a water-filled beaker move up or down?
- Titan97
- · Replies 5 ·
Complex RC Circuit - Multiple Resistors
- FireZealot
- · Replies 10 ·
Simple harmonic motion of particles
- erisedk
- · Replies 9 ·
Reluctance in a cast steel ring
- DevonZA
- · Replies 10 ·
Finding energy in a 4 object charge system
- Anthony Santelices
- · Replies 7 ·
Magnetic Field Force of a proton
- PhysicsInNJ
- · Replies 6 ·
Why Does the Change in Momentum Equal 2pi in Laser Beam Force Calculations?
- Marcin H
- · Replies 3 ·
Cylinder wrapped with wire on hill with magnetic field
- kissmyasthma
- · Replies 3 ·
Calculating Gauge Pressure on a Sphere
- LoveBoy
- · Replies 15 ·
Relative motion and conservation of momentum
- stfz
- · Replies 6 ·
What are the forces acting on a child pulling a wagon up an inclined hill?
- IbrahimA
- · Replies 3 ·
Net Force and Direction of motion
- Marleycake
- · Replies 2 ·
Double ball drop and conservation of momentum
- stfz
- · Replies 5 ·
Calculating Force Exerted on Table Legs by Mass and Dimensions
- Kamisama
- · Replies 13 ·
What is the derivation of centripetal acceleration on a hypothetical planet?
- rrosa522
- · Replies 1 ·
Elastic collision between body A and spring-connected bodies B and C
- jessij
- · Replies 8 ·
Making a fomula to calculate the max power (electricity)
- Tqooa Ez
- · Replies 1 ·
Quantum harmonic oscillator, uncertainty relation
- phys-student
- · Replies 6 ·
Find the induced EMF and Lenz' law
- NihalRi
- · Replies 4 ·