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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Can We Predict Elastic Collision Outcomes Knowing λ, v, and m1/m2?
- simpatico
- · Replies 2 ·
Loop-the-Loop, work-energy problem
- armolinasf
- · Replies 1 ·
What is the Charge on Capacitor C2 at Time t2?
- 012983
- · Replies 8 ·
The properties of Electric Field lines
- Ammar SH
- · Replies 3 ·
Is V0 the Voltage Drop Across R1 or R2 in a Voltage Divider?
- tylerc1991
- · Replies 1 ·
Kinetic and Potential Gravitational Energy Problem
- Seinfeld4
- · Replies 5 ·
What is the magnitude of the electric field?
- n_h0987
- · Replies 4 ·
Circuit Problem. Potential Difference
- sky.flower1234
- · Replies 6 ·
Simple Newtonian mechanics problem
- Aikon
- · Replies 2 ·
Calculating momentum before and after a collision
- sdoyle1
- · Replies 6 ·
What does 75 degrees below the north-south plane mean?
- reyunknown
- · Replies 3 ·
When does the cop catch the car in a constant velocity chase?
- Femme_physics
- · Replies 34 ·
Charge on C1 at t1 in LC Circuit
- theoB
- · Replies 3 ·
What does the slope of radius vs centripetal force represent?
- 5.98e24
- · Replies 15 ·
Potential drop across each resistor
- yjk91
- · Replies 1 ·
Projectile motion- only distance is known
- sean-820
- · Replies 9 ·
Lab Questions on gravitational potential energy and Kinetic Energy
- NeomiXD
- · Replies 3 ·
Trajectory of an electron in cathode ray tubes
- mattg443
- · Replies 2 ·
Understanding Domain Structure in Ferromagnetic Substances
- logearav
- · Replies 1 ·
4 questions regarding electric field
- realz
- · Replies 6 ·
What speed must a car travel over a hill to exert no force on the road?
- beckysamis
- · Replies 3 ·
Acceleration with force of gravity and friction
- djokoman95
- · Replies 3 ·
How to calculate total resistance?
- Mphisto
- · Replies 5 ·
Magnetic force on a moving charge particle with friction force acting on it
- siddscool19
- · Replies 3 ·
Kinematics Question: Metal Box and Parachute Freefall Calculation
- n707jt
- · Replies 4 ·
Boat Tugging a Whale: Solving 2 Unknowns
- Femme_physics
- · Replies 27 ·
Calculating current in parallel wire
- djaziria
- · Replies 2 ·
Representation of units with abbreviations
- GreenPrint
- · Replies 5 ·
Mass on a wedge. Relative acceleration.
- Darth Frodo
- · Replies 1 ·
Box sliding down a ramp question
- francescalynn
- · Replies 4 ·
What Is the Final Position of a Vector Rotated Clockwise by 110°?
- Torshi
- · Replies 3 ·
Cylinder,piston termodynamics problem
- flyerpower
- · Replies 4 ·
Thermal conductivity and resistance
- justinlj
- · Replies 5 ·
Kinetic energy in parabolic coordinates
- QuArK21343
- · Replies 3 ·
Calculating Time to Consume Energy from Running Up Stairs
- NeomiXD
- · Replies 1 ·
Two problems while reading Feynman lectures (vector field))
- Proust
- · Replies 10 ·
Power of a transverse wave related to rope length
- symphwar
- · Replies 2 ·
How to Calculate the Kinetic Energy of an Inhomogeneous Cylinder?
- fluidistic
- · Replies 4 ·
Kinetic and Gravitational Energy Question
- NeomiXD
- · Replies 23 ·
Kinetic and Gravitational Energy Related Questions
- NeomiXD
- · Replies 1 ·
Finding the height of a well after a stone is dropped
- iamjohnny56
- · Replies 2 ·
What is the electric field magnitude at points where electric potential is zero?
- n_h0987
- · Replies 3 ·
Why does a tube light flicker when switched on?
- ekaveera100
- · Replies 1 ·
Moment of inertia calculations for parts C and D
- athrun200
- · Replies 13 ·
Net acceleration of toy cricket launched by spring
- jehan4141
- · Replies 9 ·
Normal forces on particle in rotating vertical slot
- drawar
- · Replies 7 ·
Frequency of X-Rays: Calculate from Wavelength to GHz
- sphys4
- · Replies 3 ·
Basic Frictional Forces/Gravity Question
- Seinfeld4
- · Replies 5 ·
Calculating Frequency for R1, L Circuit
- rmusial91
- · Replies 2 ·
Finding the Resistance of a cone
- aximwolf
- · Replies 1 ·
Applications of the Equations of Kinematics
- amiemgm
- · Replies 3 ·
What is the correct way to express a temperature interval in degrees Celsius?
- mopar969
- · Replies 4 ·
What is the maximum force for a Yo-Yo to roll without slipping?
- Order
- · Replies 6 ·
Is temperature associated with rotational, translational, and vibrational energy?
- mopar969
- · Replies 2 ·
Calculating Time for Subway Travel with Maximum Acceleration
- jehan4141
- · Replies 4 ·
How do I draw the diagram of the mirror charge
- blueyellow
- · Replies 5 ·
Finding induced current (Lenz's Law)
- joej24
- · Replies 14 ·
Understanding Phase Change: Effects of Heat on Kinetic Energy
- mopar969
- · Replies 5 ·
Motorboat downstream problem (mechanics)
- gurparwaan
- · Replies 2 ·
When does a weather balloon hit the ground given h(t) defined only to t=48?
- GreenPrint
- · Replies 9 ·
Not really understanding Gravitational Potential energy or Kepler's laws?
- mayodt
- · Replies 3 ·
Convert m^2 to cm^2: How Many Transistors Fit Across a Human Hair?
- Torshi
- · Replies 2 ·
Why is the increase in kinetic energy of the particle after being accelerated
- blueyellow
- · Replies 1 ·
Finding coefficient of fuzzy block and dynamics cart.
- JohnCarter
- · Replies 5 ·
Heisenberg's Uncertainty Principle position and momentum
- jevillan
- · Replies 14 ·
Calculating the Radius of Earth's Iron Core: A Simple Model Approach
- kraigandrews
- · Replies 1 ·
Finding Force with T and V given
- mom2maxncoop
- · Replies 5 ·
Finding the currrent of the circuit
- yjk91
- · Replies 1 ·
Electric field of a wire segment
- Reshma
- · Replies 6 ·
What is the tension in the string for circular motion of keys?
- fa08ti
- · Replies 13 ·
Second moment of area for octagon
- skm_h2o
- · Replies 1 ·
Determining time to melt an ice cube
- mom2maxncoop
- · Replies 4 ·
Optics - Diopter farsighted + shortsigted
- zimo
- · Replies 1 ·
Energy Require from water-steam
- mom2maxncoop
- · Replies 8 ·
Need project ideas on quantum physics
- Wallow
- · Replies 2 ·
Ball bouncing on inclined plane after falling distance h
- Pi-Bond
- · Replies 9 ·
Electric Flux and Gauss's Law for Non-Uniform Charge Density in a Solid Cylinder
- johafmorsha
- · Replies 2 ·
Which is Largest Unit of Heat Energy: Calorie, Btu, Joule, Kilojoule
- mopar969
- · Replies 2 ·
How to Calculate Free Fall Time with Variable Gravity?
- simpatico
- · Replies 28 ·
What is the 'first order' diffraction peak?
- HotMintea
- · Replies 2 ·
Where do the coefficients come from in gravitational force calculations
- Combine
- · Replies 9 ·
Finding the velocity and position of a particle from a graph
- iamjohnny56
- · Replies 2 ·
Are These Statements About Nuclear Physics True or False?
- NicoTheGreat
- · Replies 2 ·
How do waves interfere in Bragg's Law?
- mattg443
- · Replies 4 ·
Snells Law and a triangle prism
- Punkyc7
- · Replies 1 ·
Capacitance Formula for Parallel Plate Capacitor with Dielectric Material?
- yjk91
- · Replies 1 ·
Charging of capacitor through rc and with pulse
- chrisggg
- · Replies 12 ·
How Fast Should Water Flow from a Faucet to Properly Water a Rooftop Lawn?
- scarlson1193
- · Replies 3 ·
Eigenvectors of rotation matrix
- timon
- · Replies 4 ·
Coulomb's law and related problem
- logearav
- · Replies 6 ·
How Do Friction Coefficients Affect Acceleration on a Frictionless Surface?
- bumblebeeliz
- · Replies 8 ·
Measuring mass without a balance
- warwick$$
- · Replies 5 ·
Calculating Refractive Index Using Fabry-Perot Interferometer
- HotMintea
- · Replies 5 ·
Solving for Acceleration of a Charged Particle
- Patdon10
- · Replies 1 ·
Relativity of Simultaneity (and Lorentz transformation)
- Oshada
- · Replies 1 ·
Relation between temperature and refractive index
- Vals509
- · Replies 1 ·
Finding an kinetic energy of an electron moving to a positive plate
- Patdon10
- · Replies 14 ·
Solving for Horizontal Projectile Motion: Mechanics Final Question
- Femme_physics
- · Replies 10 ·
Electric field and electric charge, whats going on in the diagram.
- rcmango
- · Replies 2 ·