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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Two particles on a vertical ring
- EmmanuelE
- · Replies 16 ·
How far to move squat stand for barbell and plate to balance?
- Dave27
- · Replies 17 ·
Calculating Solar Panel Area Needed for a 1MW Power Output
- Ethan_Tab
- · Replies 4 ·
What happens to the charge and amount of energy stored?
- Rijad Hadzic
- · Replies 3 ·
Determining the direction of the magnetic field
- Physgeek64
- · Replies 2 ·
Rocket thrust force calculation
- robax25
- · Replies 9 ·
Heat transfer between two iron blocks
- ardour
- · Replies 6 ·
Mass-spring question (frequency and amplitude)
- pacgcrosss
- · Replies 4 ·
Moment couple (opposite direction on same line)
- yecko
- · Replies 3 ·
Did I calculate the acceleration and Tension correctly?
- Bart Allen
- · Replies 9 ·
How Does Magnetic Moment Change with Temperature and Field Strength?
- patrickmoloney
- · Replies 4 ·
Is my approach correct for the 3D moment couple problem?
- yecko
- · Replies 21 ·
Net forces versus net moments -- solving a beam problem
- yecko
- · Replies 24 ·
Conservation of Momentum Lab (Carts Collide and Stick Together)
- kenzieleigh
- · Replies 8 ·
Calculating Resistance in a Circuit using Kirchhoff's Laws
- physicsStudent00
- · Replies 9 ·
How harmonics are produced in a guitar string?
- Gabriel Maia
- · Replies 11 ·
Capacitor circuit time constant problem
- helppls
- · Replies 2 ·
Understanding Point B: Solving for Normal Force at Point B
- Miliman13
- · Replies 4 ·
Fluid Statics- u-tube displacement
- helppls
- · Replies 2 ·
Area under the curve of a mass time graph
- blueblast
- · Replies 5 ·
Calculating Current in a Wire Loop Inside and Outside a Solenoid
- Noreturn
- · Replies 9 ·
Finding the Amplitude of a Trigonometric Motion Equation
- Fascheue
- · Replies 8 ·
Understanding Mass-Spring Behavior in Zero Gravity
- aatari
- · Replies 4 ·
Applied force compared friction force at constant velocity
- JakeCC
- · Replies 1 ·
Frequency and wavelength of vertical string wave
- ming
- · Replies 3 ·
How does angle of incidence affect microwave reflection intensity?
- Cocoleia
- · Replies 2 ·
Calculating Work: When to Use W = Fd cos(a) vs. the Integral of F
- caspeerrr
- · Replies 1 ·
Banked Curve-Determine smallest static coefficient of friction
- Alexanddros81
- · Replies 9 ·
Understanding T = (Seconds/Revolutions) in Uniform Circular Motion
- Miliman13
- · Replies 3 ·
Are ALL parallel plate capacitors linear?
- lonelypancreas
- · Replies 2 ·
What Are the Forces at Play in Antarctic Snowcat Towing?
- milkywayiguana
- · Replies 3 ·
Comparing kinetic energy of system to kinetic energy of center of mass
- Human_being
- · Replies 8 ·
Coulomb's Law, Three Charges, X Y Components, Angle
- Stenn
- · Replies 12 ·
Finding the correct formula for the speed of waves in shallow water
- lostpersson
- · Replies 1 ·
Pendulum on the end of a rotating disk
- Smouk
- · Replies 4 ·
What's wrong with my calculation here? (propagation of uncertainty)
- Mrq
- · Replies 9 ·
Is the Use of C_V in Adiabatic Expansion of Carnot Cycle Incorrect?
- Pushoam
- · Replies 7 ·
Finding velocity and acceleration at t=2 from x=4t, y=30−2.2t²
- Lori
- · Replies 9 ·
Finding speed when given deceleration and distance?
- Mady Hernandez
- · Replies 2 ·
Finding the magnitude of the force
- Muthumanimaran
- · Replies 3 ·
What is the average acceleration vector given a car's north and east velocities?
- lostpersson
- · Replies 1 ·
Finding x(t) for a Particle Under Force F(x) = kx
- Fascheue
- · Replies 15 ·
Calculating the maximum temperature of a heating wire
- Komberly
- · Replies 2 ·
Finding Displacement based on Velocity Graph
- Lori
- · Replies 11 ·
Circular Motion question, why does Fnet = 0 (so that T=W)?
- sodnaz
- · Replies 1 ·
How Does Heat Relate to Work in Thermodynamics?
- Pushoam
- · Replies 8 ·
Direction of the induced current
- Suyash Singh
- · Replies 4 ·
Generate sine wave with signal generator on scope
- loesung
- · Replies 1 ·
'Unusual' mathematical step in integration
- jdbbou
- · Replies 1 ·
Particle with mass m and force F(t). Show that x = x(t)
- kafn8
- · Replies 1 ·
Frequencies of fundamental standing waves
- ardour
- · Replies 3 ·
What is the impact speed of the proton in a 4850V capacitor?
- prokaryote
- · Replies 3 ·
Potential on the axis of a uniformly charged cylinder
- acrimius
- · Replies 1 ·
Net force acting on positive charge
- ardour
- · Replies 1 ·
Electric potential due to collection of charged particles
- Rijad Hadzic
- · Replies 3 ·
Net force and acceleration as a result of a parachute
- ardour
- · Replies 1 ·
Ball hitting a wall at an angle - x and y motion
- peesha
- · Replies 6 ·
Finding lift and resistance for equilibrium with thrust 103000 N
- Rhineland
- · Replies 4 ·
Bicycle catching a braking car with time-varying acceleration
- Poetria
- · Replies 20 ·
What is the Height of the International Space Station Above the Earth's Surface?
- Chan M
- · Replies 2 ·
Why must stable circular orbits require Ueff to have a minimum?
- Prashant123
- · Replies 5 ·
Angular velocity of cylinders after slipping over each other
- carlyn medona
- · Replies 2 ·
How to calculate the total energy in the point given.
- Mendokusan
- · Replies 10 ·
Elastic collision of two titanium balls with equal approach speeds
- terryds
- · Replies 11 ·
Energy Lost during elastic collision.
- orientor
- · Replies 2 ·
How Does the Method of Images Simplify Electrostatic Problems?
- timetraveller123
- · Replies 17 ·
What Do Coefficients and Expectation Values Mean in Quantum Mechanics?
- WWCY
- · Replies 8 ·
Reversible Isothermal Expansion Steam
- zwambooo
- · Replies 2 ·
Finding the resistance in a parallel-series circuit.
- Eclair_de_XII
- · Replies 17 ·
Projectile Motion velocity vector Problem
- Lori
- · Replies 2 ·
Buoyancy of a sealed hemisphere underwater
- Nathan B
- · Replies 14 ·
Relativity: Initial velocity and e/m of Thomson's experiment
- Matt21
- · Replies 1 ·
Why does the phase factor go with -z in this quantum mechanics problem?
- grandpa2390
- · Replies 9 ·
System of two particles: Prove motion along connecting line
- Cepterus
- · Replies 2 ·
What is the total amount of work done by friction?
- OGBJ
- · Replies 9 ·
How do I calculate the mass of a moving object?
- Joseph Hotto
- · Replies 1 ·
Using Gauss' Law to Calculate electric field near rod.
- Nathan B
- · Replies 1 ·
Find how far ahead a grandfather clock gets after a period of time
- Nathan B
- · Replies 2 ·
Two motorbikes accelerating toward each other over 80m
- michaelgtozer
- · Replies 14 ·
Acceleration and velocity: Car and train problem
- Cat29
- · Replies 3 ·
Block sliding down hill splits into two blocks
- TGProm
- · Replies 12 ·
Two forces on 4.87-kg object accelerating in y-direction
- Asad Raza
- · Replies 8 ·
Bead on rotating rod with friction: where does normal force come from?
- Vriska
- · Replies 2 ·
Determine work done by electric field
- Baramos
- · Replies 1 ·
How Do You Calculate the Magnitude of Acceleration in an Elevator?
- Poetria
- · Replies 4 ·
Is -i equal to e^(-iπ/2) as a phase factor?
- grandpa2390
- · Replies 1 ·
Particle incident from right on finite square well potential
- RJLiberator
- · Replies 6 ·
How would you calculate the refractive index?
- Vaish
- · Replies 1 ·
Rotational Equilibrium Question
- Joshd99
- · Replies 2 ·
How to Calculate Total Power Factor in a Parallel AC Circuit?
- Cocoleia
- · Replies 1 ·
What is the Speed and Number of Protons in a Van de Graaff Generator Beam?
- doggydan42
- · Replies 3 ·
Conduction Angle of a Diode Circuit
- NBaumbick
- · Replies 1 ·
Finding string tensions with a 5 kg mass suspended at angles
- Masrat_A
- · Replies 19 ·
How many points of zero probability in a finite well?
- L_landau
- · Replies 1 ·
Partial differential equation boundary
- ficku1
- · Replies 7 ·
Uneven distribution of charge on a ring problem
- Ahmed Farhan
- · Replies 1 ·
Are Human Cell Walls Capacitors?
- doggydan42
- · Replies 14 ·
Elastic collision and angle of deflection problem
- Ahmed Farhan
- · Replies 3 ·
How Is Acceleration Calculated in a Friction-Affected System on an Incline?
- Masrat_A
- · Replies 15 ·
Why Do Objects in Convex Car Mirrors Appear Closer Than They Are?
- Suyash Singh
- · Replies 5 ·