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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Verifying α(t) = α₀ cos(√(g/l) t) solves the differential equation
- danpab
- · Replies 7 ·
Finding t for projectile motion without initial velocity
- vsindorf
- · Replies 1 ·
Finding K in a two spring system.
- youknow789
- · Replies 5 ·
Adiabatic process - Diesel engine
- ibysaiyan
- · Replies 6 ·
Electric field from a semi-infinite line charge along x-axis
- twisted079
- · Replies 10 ·
Finding force vector fields for 3 dimensional potential energy fields
- Verdict
- · Replies 1 ·
Two object on top of each other with friction
- David Hamshir
- · Replies 2 ·
(Conservation of Linear Momentum) Find u1 speed
- paola8
- · Replies 2 ·
Comparing velocities of truck and car, and finding gun barrel length
- nando94
- · Replies 8 ·
Friction and Normal Forces in Crate-Wall Interaction
- jonochui
- · Replies 2 ·
What is the Line Integral of Magnetic Field in a Parallel-Plate Capacitor?
- Joe626
- · Replies 2 ·
Kinetic energy of car with friction over 120m track
- Mark Rice
- · Replies 5 ·
Static/kinetic friction problem
- Hiche
- · Replies 6 ·
Spring Problem, conservation of energy equation
- smashbrohamme
- · Replies 7 ·
Waves and light (problem solving)
- lemin_rew
- · Replies 9 ·
Two forces; 2d rigid body, only one resultant known
- togo
- · Replies 9 ·
Finding resultant of four forces on a sack with given angles
- VICKZZA
- · Replies 7 ·
Kinetic Energy and the Work-Kinetic Energy
- Joyci116
- · Replies 4 ·
Electromagnetic waves and phase difference
- logearav
- · Replies 6 ·
Wheel attached to a fixed shaft
- aigerimzh
- · Replies 1 ·
Cross products vs. dot products
- Joyci116
- · Replies 2 ·
Electric Potential - Conceptual question
- EngineerHead
- · Replies 3 ·
Solving for Rotational Velocity of a Ring and Bug System | Homework Question
- aigerimzh
- · Replies 2 ·
Newton's 2nd Law and drawing forces
- Manni
- · Replies 2 ·
2 parallel plate conducts and dielectric-pic included
- pyroknife
- · Replies 1 ·
Balloon dropped from 580 m tower colliding with potato fired upward
- Vontox7
- · Replies 1 ·
What Is the Maximum Angle Before Slipping on an Inclined Plane?
- sinjid9
- · Replies 1 ·
Effective resistance across points A and B in a regular hexagon
- Asphyx820
- · Replies 6 ·
Do two hockey pucks on a frictionless plane collide and when?
- itskiddly
- · Replies 1 ·
Pressure diffence between water column in capillary tube and open vessel
- wind_swiff
- · Replies 1 ·
How Do You Determine the Acceleration and Tension in a String and Pulley System?
- phizics09
- · Replies 3 ·
Finding acceleration of an object (with friction)
- Joe26
- · Replies 8 ·
Doppler shift needed to see red traffic light as green
- Linda
- · Replies 3 ·
The final temperature of a gas?
- JustinLiang
- · Replies 1 ·
Understanding Decay and Half-Life of Uranium
- paperdoll
- · Replies 12 ·
Understanding Lorentz Transformations: Equations and Explanation
- ZedCar
- · Replies 1 ·
Projectile Motion in Relativity: Lorentz Vector Subtraction
- ZedCar
- · Replies 1 ·
Truck weight from ferry sinkage of 0.0367 m
- 7starmantis
- · Replies 10 ·
How Much Does the Raft Rise When a 53kg Girl Dives Off?
- 5.0stang
- · Replies 5 ·
Photon Emission Rate and Optics Questions
- vitaly
- · Replies 5 ·
How Do You Calculate the Force on a Ferris Wheel Rider at a Specific Point?
- the_nile_song
- · Replies 1 ·
A skier starts from rest, accelerates down 30degree slope
- punyhuman92
- · Replies 13 ·
Projectile motion on an inclined plane and linear equations
- krequi
- · Replies 1 ·
What is the Time to Reach a Distance of 50 ft at a Velocity of 60 mph?
- lilac1.
- · Replies 1 ·
Calculating Force and Normal Force on 10kg Suitcase at Angle 48
- BallerRegis
- · Replies 2 ·
Superposition of Electric Fields
- Jimerd
- · Replies 1 ·
Values of Velocity at which the body will move without bouncing
- sodaboy7
- · Replies 3 ·
Force at pin A in slip-joint pliers problem
- doubled
- · Replies 3 ·
Why does coupled oscillation give ma1 = -2kx1+kx2?
- Lagrange53110
- · Replies 4 ·
How Is the Force of Friction Calculated for a Block Sliding Horizontally?
- yosimba2000
- · Replies 3 ·
Calculating Magnitude and Vector Componends given Momentum and Mass
- zboomer
- · Replies 1 ·
RLC Circuit (with critical and heavy damping)
- JNBirDy
- · Replies 1 ·
Finding the constraint relation between accelerations in a pulley system
- bcmb146
- · Replies 2 ·
Finding tension of a rope pulling a crate
- Timebomb3750
- · Replies 6 ·
Finding truss member forces without support reactions
- eurekameh
- · Replies 1 ·
Gravitational potential energy in a swing at different angles
- aero_zeppelin
- · Replies 4 ·
Intensity of light entering eye
- Weistber
- · Replies 1 ·
Move tricycle in circle during x sec at speed s
- transilvanian
- · Replies 1 ·
Will the tension between the boxes be the same as the tension on the rope
- Miike012
- · Replies 2 ·
Special Relativity Particle Distance Question
- bon
- · Replies 1 ·
Lorentz factor for particle moving at angle
- ZedCar
- · Replies 1 ·
Collision time for balloon and potato from tower
- Vontox7
- · Replies 1 ·
Question on Faraday's and Lenz's Law
- Bipolarity
- · Replies 2 ·
What must the Dimensions of G be for this equation to be dimensionally correct?
- Keecha
- · Replies 1 ·
Ceq of 3 capacitors in a triangle
- pyroknife
- · Replies 3 ·
What Is the Speed and Angle of Raindrops in Different Reference Frames?
- RockenNS42
- · Replies 1 ·
What was the original speed of the bullet?
- Joyci116
- · Replies 4 ·
Finding tension in cables supporting three suspended masses
- djumper168
- · Replies 3 ·
Why is the normal force different for circular motion on an inclined plane?
- Sefrez
- · Replies 6 ·
Coefficient of Friction, and frictional force
- VladDracule
- · Replies 6 ·
Kinematics in Two or Three Dimensions
- FTHx
- · Replies 2 ·
Work done by gravity when m2 falls distance h on a ramp
- Collaptic
- · Replies 9 ·
Forces two objects apply on each other during inelastic collision
- austindubose
- · Replies 4 ·
Phase difference between two parallel RC branches in AC circuit
- logan222111
- · Replies 1 ·
Rates of Change - Is this answer correct?
- studentxlol
- · Replies 1 ·
Sphere suspended by two wires in horizontal circular motion
- cde42003
- · Replies 4 ·
What is the momentum of a proton moving at 0.7c?
- ZedCar
- · Replies 3 ·
Work done to move spring displacement
- gunster
- · Replies 2 ·
At what angle to throw a basketball from 4.0m away at 3.0 m/s?
- xrayxman
- · Replies 2 ·
How can algebra be used to convert an exponential graph into a linear graph?
- ishaquea
- · Replies 8 ·
Find Kinetic Friction of a Block Pushed Up an Incline
- muddy510
- · Replies 17 ·
Why Does the Atwood Machine Equation Deviate from Expected Results?
- Megzzy
- · Replies 6 ·
What is the focal length of the second lens in an afocal system?
- Lunar_Lander
- · Replies 2 ·
Finding the pushing force needed to keep object from sliding down wall
- Timebomb3750
- · Replies 2 ·
Center of mass and moment of intertia semi-circle
- Liquidxlax
- · Replies 5 ·
Velocity and position of the particle as a function of time
- shahin93
- · Replies 3 ·
Alpha particle and Beryllium reaction
- dav1d
- · Replies 3 ·
Find the time when velocity = 10 m/s
- tebes
- · Replies 5 ·
Relativity - Mass/Energy/Speed
- ZedCar
- · Replies 5 ·
Positron Helix magnetic field, find pitch and radius
- JosephK
- · Replies 1 ·
Hockey puck momentum, conservation of linear momentum
- jehan4141
- · Replies 1 ·
[Nucl Physics]alpha particle and beryllium atom collison
- dav1d
- · Replies 1 ·
Calculate how much the light has been displaced
- mimi.janson
- · Replies 20 ·
Forces and Newton's Laws of motion
- Qwap
- · Replies 1 ·
Solving for g and COF on incline plane
- jasimp
- · Replies 7 ·
Time Period of SHM: Opposite Charges in Springs
- Asphyx820
- · Replies 5 ·
Are Capacitors Connected to a Voltage Source in a Circuit?
- auk411
- · Replies 1 ·
How to find he coefficient of kinetic friction?
- snash1057
- · Replies 3 ·
Static Friction and Frictional Force Ranking Task of Crate
- andyman21
- · Replies 5 ·
Final velocity and frictional force?
- emmyology
- · Replies 6 ·