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 Are Proton Energies Quantized in a Nano-Scale Box?
- Kavorka
- · Replies 1 ·
Scale reading in elevator with acceleration and constant velocity
- Prashant91
- · Replies 6 ·
Mass sliding down frictionless ramp, across rough patch, up second ramp
- Ethan_Tab
- · Replies 4 ·
How to know when to relate the tangents (Divide components)
- Cake
- · Replies 4 ·
How Does Energy Transfer Affect Entropy in a Water-Ice System?
- Lisa Marie
- · Replies 3 ·
How can the momentum of a thrown rock be calculated with given parameters?
- Kikakaru212
- · Replies 1 ·
Calculating Torque around moving Centre of mass
- sunquick
- · Replies 3 ·
Volume charge density from electric field at two altitudes
- Jess155
- · Replies 2 ·
How Is Heat Calculated in a Diesel Cycle Using Volumes and Temperatures?
- cloud809
- · Replies 4 ·
Equilibrium Question with water and ice
- Lisa Marie
- · Replies 6 ·
Rutherford scattering - electromagnetic form factor
- skrat
- · Replies 3 ·
Spring mass pulley system frequency equation
- Name15
- · Replies 7 ·
Energy of a Forced, Damped Oscilator
- bananabandana
- · Replies 6 ·
Rotational motion - finding tangential acceleration
- prettydumbguy
- · Replies 1 ·
Tank of pressurized air to loosen bolts
- yassine
- · Replies 5 ·
Eq. for displacement of current-carrying wire due to magnet
- WK95
- · Replies 2 ·
Electric charge inside a uniformly distributed sphere
- Caglar Yildiz
- · Replies 5 ·
Block and spring on a weird track (roller coaster)
- masterchiefo
- · Replies 9 ·
How to Determine Electric Potential for Coaxial Charged Cylinders?
- Carmanman
- · Replies 23 ·
Magnetic Force Between Current-Carrying Wires
- David21
- · Replies 2 ·
Current on a spring to withstand a weight.
- pitbull
- · Replies 5 ·
Calculating Horizontal Distance for a Falling Object Without an Angle
- red1312
- · Replies 7 ·
Electromagnetic induction of a closed circular wire
- Jamessamuel
- · Replies 2 ·
Mix steam with colder water, what is final temp?
- SunshineCat
- · Replies 2 ·
How to Solve the Twin Paradox Problem Using Lorentz Transformations
- GammaLyra
- · Replies 1 ·
Heat transfer from body through layers, using h, T, d, A
- SunshineCat
- · Replies 1 ·
Finding the coefficient of static friction on an inclined pl
- Blue Sand
- · Replies 1 ·
I understanding this nuclear fission process
- Saracen Rue
- · Replies 1 ·
Aircraft velocity and direction to return to base
- Prashant91
- · Replies 10 ·
Potential of a Charged Spherical Shell
- Estefania_8
- · Replies 3 ·
Is Momentum Conserved in Both Collision Scenarios?
- Westin
- · Replies 5 ·
Why Won't the Lightbulb Light Up?
- minimario
- · Replies 22 ·
How Do You Calculate Forces in a Multi-Block System with Friction?
- MP2491
- · Replies 7 ·
Orbital velocity of Mars satellite 300 km altitude
- BilboBombadillo
- · Replies 2 ·
Closest stable orbit of a body around earth
- AndrewC
- · Replies 2 ·
Nodal lines and single slit experiment
- Arnoldjavs3
- · Replies 8 ·
Why is induced current counterclockwise when flux into page decreases?
- izelkay
- · Replies 4 ·
Buoyant Force of a block in water
- personage
- · Replies 2 ·
Calculating magnetic flux density using Biot-Savart law.
- 3OPAH
- · Replies 3 ·
Potential Step and Wave Functions
- DunceMoin
- · Replies 2 ·
Finding equilibrium position after inelastic collision of charged block with spring
- erisedk
- · Replies 4 ·
What is the rotational kinetic energy of the disk at a given distance?
- Westin
- · Replies 8 ·
Spring on inclined plane with a Block
- masterchiefo
- · Replies 1 ·
Internal Force Diagram for Rigid Body and Distributed Load
- hdp12
- · Replies 6 ·
Charge passing through a magnetic field of uniform magnetic flux density
- 3OPAH
- · Replies 5 ·
What happens to the charge on the capacitor as time goes to infinity?
- toothpaste666
- · Replies 10 ·
How Do Kinetic Energies Vary for Decay Products in Different Frames?
- Astudious
- · Replies 4 ·
Problem with heat capacity of thermal system
- Pouyan
- · Replies 5 ·
Find the minimum amount of energy required to eject electron
- CKaiL
- · Replies 7 ·
What is the Error Source in SHM Experiment with Floating Cylinder?
- smokedvanilla
- · Replies 4 ·
10 kg mass on 30° incline with 75 N tension: finding velocity after 2 seconds
- brake4country
- · Replies 6 ·
Dynamics Problem: Incline Block and Moment of Interia
- JcAcefighter
- · Replies 1 ·
Kinetics Problems -- Blocks on inclined plane
- masterchiefo
- · Replies 2 ·
What Forms of Energy Change in a Two-Mass Spring System?
- Westin
- · Replies 2 ·
Photoelectric Equation - SI unit question
- CKaiL
- · Replies 3 ·
Potential of a Charged Conducting Sphere
- Estefania_8
- · Replies 8 ·
Calculating electric field due to charge distribution
- henry3369
- · Replies 1 ·
How Do You Calculate Radiation Dose and Beam Current from Proton Exposure?
- xamy
- · Replies 1 ·
Whirling stone in vertical circle.
- Yoonique
- · Replies 7 ·
How to relate mass defect to kinetic energies?
- rwooduk
- · Replies 7 ·
Electric field due to a distributed charge over a ring
- henry3369
- · Replies 1 ·
Effect of a spring on equations of motion
- theone
- · Replies 2 ·
Problem with Pressure Equation units
- SanEng02
- · Replies 2 ·
What is the force of tension in a string connecting two revolving satellites?
- jhoge
- · Replies 20 ·
Voltage difference across resistors with opposite current directions
- toothpaste666
- · Replies 12 ·
Does a capacitor ever get fully charged?
- thephysicist
- · Replies 1 ·
Kinematics, Distance acceleration and deceleration.
- ManicPIxie
- · Replies 6 ·
How can I incorporate wind resistance into my projectile motion calculations?
- python
- · Replies 12 ·
How much the gas has increased the speed of the plug?
- kaspis245
- · Replies 13 ·
What is the Weight and Normal Reaction of a 10 kg Box on a Table at Rest?
- Nahsor1
- · Replies 8 ·
Simple Circuit with Two Sources
- showzen
- · Replies 3 ·
Distance from the object to objective lens and focal length
- bubothedog
- · Replies 1 ·
Heat and increasing a rod's length
- Lisa Marie
- · Replies 7 ·
Finding the Total Momentum of a Three Particle System
- Westin
- · Replies 1 ·
Equipment sliding on an incline with 2000 lb friction force
- Lazorbeam
- · Replies 2 ·
Charge on a point P from a uniform rod
- motyapa
- · Replies 2 ·
Charge per unit length for a charged ring
- Malabeh
- · Replies 1 ·
Diverging and Converging lenses in a system
- DrewHizzy
- · Replies 9 ·
Arrow shot at 20 degrees on a 15 degree slope
- Lord Anoobis
- · Replies 6 ·
Why is there a force pointing towards the center of a circular trajectory?
- 0kelvin
- · Replies 5 ·
SHM Spring System is Independent of Gravity?
- GameJammer
- · Replies 5 ·
Projectile Motion- magnitude of final velocity
- Nelson2436
- · Replies 2 ·
Celsius to Kelvin Conversion: Solving for T2
- gracy
- · Replies 3 ·
Hydrostatics with density and area
- Patricia Reid
- · Replies 16 ·
Finding image position and size in a double lens system
- Venerable R
- · Replies 28 ·
Calculating Work and Determining Conservativity for a Force F=(xy)i+(2*y^2)j
- brianeyes88677
- · Replies 5 ·
What is the tension in a rope supporting multiple weights using a pulley system?
- brake4country
- · Replies 6 ·
Heat and temperature question with calorimetry
- Lisa Marie
- · Replies 1 ·
Values of a and b in pendulum equation?
- ajrvega22
- · Replies 2 ·
Equilibrium Question: Arbitrary Axis of Rotation?
- cj
- · Replies 2 ·
What is the correct area to use in a stress calculation for a compressed object?
- 1question
- · Replies 1 ·
Why Does Work Have Positive and Negative Values?
- Calpalned
- · Replies 5 ·
Help with right hand rule directions
- minimario
- · Replies 30 ·
Question on Rotational Dynamics of Yoyo
- fchen720
- · Replies 3 ·
Obtaining kinetic energy equation.
- Pietervv
- · Replies 2 ·
Pressure difference on a submerged metal cube
- Patricia Reid
- · Replies 6 ·
Resonant RLC circuit and in inductance
- Worme
- · Replies 5 ·
Minimum thickness of oil film appearing red at 626 nm
- xamy
- · Replies 13 ·
Calculating Friction Force on a Resting Block
- physaru86
- · Replies 9 ·
Electric field inside an infinitely long cylinder.
- soulreaping
- · Replies 1 ·