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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Elastic And Inelastic Collision Questions
- spikefreeman
- · Replies 16 ·
Is the torque of a couple equal to the resultant torque?
- Andy21
- · Replies 4 ·
Force on Planet Moving in Interstellar Dust
- BigD
- · Replies 5 ·
How far from the lightbulb can you stand to see it? photon problem
- okgo
- · Replies 1 ·
Period of vibration with springs
- Julie323
- · Replies 13 ·
Conservation of energy and electrons in electric field?
- okgo
- · Replies 3 ·
Calculating Speed of Falling Mass on Pulley System
- Xels
- · Replies 2 ·
How is the Torque Equation Set Up for a Leaning Ladder in Static Equilibrium?
- physicsman2
- · Replies 5 ·
How Many Air Molecules are Contained in a Smooth Cylinder at Equilibrium?
- pfunk22
- · Replies 4 ·
Temperature from Doppler Effect spectral broadening
- anotherghost
- · Replies 1 ·
Work done in rotating a current carrying loop
- zorro
- · Replies 4 ·
Determining Mass of Holder w/ Period Squared Graph
- erik-the-red
- · Replies 5 ·
How Does a Charged Particle Move in Combined Electric and Magnetic Fields?
- zorro
- · Replies 25 ·
Why Don't We Need to Consider Net Force in Rotational Static Equilibrium?
- eason123deng
- · Replies 2 ·
Finding electric field at different points
- henchi03
- · Replies 9 ·
Improving Specific Heat Capacity Experiment
- Peter G.
- · Replies 1 ·
Mechanical energy- Falling rock
- fiziks09
- · Replies 2 ·
Potential Gravity Energy Question
- MacMilla
- · Replies 11 ·
Shell gets separated in two. What's v of two parts?
- arddi2007
- · Replies 14 ·
What Is the Angular Acceleration and Distance Traveled by the Paint Splotch?
- RedDanger
- · Replies 2 ·
Why is angular acceleration positive even though it is going clockwise?
- flyingpig
- · Replies 6 ·
How fast does the balloon accelerate upwards?
- osker246
- · Replies 3 ·
Uniform circular motion on a banked curve
- Sean1218
- · Replies 7 ·
Horizontal Forces exerted by door hinges
- sdcmma
- · Replies 2 ·
How Is Velocity and Impulse Determined in a Two-Car Collision?
- cary5
- · Replies 3 ·
Law of conservation of energy homework help
- hasek888
- · Replies 9 ·
How is Impulse Related to Momentum?
- pirateboy
- · Replies 3 ·
Vi = 100km/h Vo=0km/h incline 15°. how far?
- twenty5
- · Replies 13 ·
Spring oscillation equilibrium point
- Julie323
- · Replies 7 ·
Solve Equilibrium Problem: Two Uniform Beams, Hinge & Chain
- cheater1
- · Replies 1 ·
What Is the Volume Ratio of Concrete to Styrofoam for a Floating Bridge Pontoon?
- sona1177
- · Replies 1 ·
Mass of a Pendulum on a Grandfather Clock
- twenty5
- · Replies 6 ·
Calculating Metabolic Energy Expenditure for Running and Walking
- dismalice
- · Replies 5 ·
Angle does it rotate & angular acceleration?
- DrMcDreamy
- · Replies 4 ·
Constant Current and Magnetic Field: How Will the Metal Rod Move?
- rmor'e
- · Replies 2 ·
Essential Role of Blood Flow in Cooling the Human Body: Heat Transfer Problem
- chohocvo
- · Replies 2 ·
Satellite Orbiting Earth Energy
- blackheart
- · Replies 3 ·
Understanding the normal vector
- nobahar
- · Replies 2 ·
How to Calculate (mu_s - mu_k) for M1 on a Horizontal Surface?
- bulldog23
- · Replies 10 ·
The average emf created by the earths magnetic field.
- mtmickush
- · Replies 1 ·
Rotating Polarizers: Find Light Intensity
- kususe
- · Replies 1 ·
Calculating Moment of Inertia and Torque for a Rotating Cylinder
- pb23me
- · Replies 4 ·
Does velocity affect the kinetic energy of falling objects?
- mohabitar
- · Replies 1 ·
How far will the truck travel before it stops?
- twenty5
- · Replies 1 ·
Gravitation & Conservation of Momentum and Energy
- blackheart
- · Replies 1 ·
How can energy equations be applied to solve this problem?
- takeiteasy
- · Replies 1 ·
Deriving mass of Earth from definition of gravity
- jrw
- · Replies 2 ·
What Minimum Diameter Must a Brass Wire Have to Withstand 350 N of Tension?
- GrandLuxor
- · Replies 4 ·
Conservation of Angular Momentum of wheel
- BIOPSYCH
- · Replies 11 ·
Ball rolling off an inclined plane
- Avathacis
- · Replies 2 ·
What is the Angular Velocity of a Sliding Beam and Man System?
- BIOPSYCH
- · Replies 2 ·
Moment of Inertia of a Rotating Cam
- Dorothy Weglend
- · Replies 5 ·
Static Equilibrium and Structure problems
- dch
- · Replies 17 ·
What is the Acceleration of Gravity on an Inclined Plane?
- Fraktal
- · Replies 7 ·
Forces on a String with a Transverse Wave
- Thefox14
- · Replies 1 ·
Thermal Energy created by block sliding down ramp
- ccflyfisher
- · Replies 3 ·
Solving Collision Problems: Engine and Carriage Homework Questions
- flarefiragax
- · Replies 3 ·
Why Do Edge Springs on a Simulated Suspension Bridge Show Higher Tension?
- pratikpatel
- · Replies 3 ·
How Much Power Does the Heat Engine Generate?
- kikko
- · Replies 1 ·
Designing a Lab to Find Constant Slope Using E=Blv Equation
- lking226
- · Replies 4 ·
Need to find torque so I can find the period
- auk411
- · Replies 1 ·
Playability of a Homemade Musical Instrument
- Mustafa Umut
- · Replies 3 ·
I with Ramp and Pulley Physics Problem
- spg93
- · Replies 1 ·
Solid sphere Kinetic Energy problem
- pfunk22
- · Replies 5 ·
What Is the Force Exerted by the Wall on a Ladder?
- DrMcDreamy
- · Replies 3 ·
Alexander & Kite: Force Needed to Hold Back
- anthroxy
- · Replies 15 ·
Moment of inertia of 3-mass system
- DrMcDreamy
- · Replies 1 ·
Pressure of Gas Exerted on Wall
- pkpiotr517
- · Replies 4 ·
What is the Relationship Between Bandwidth and RLC Circuit Parameters?
- IBY
- · Replies 10 ·
How Is the Spring Constant Calculated from Oscillation and Mass Changes?
- ConstableZiM
- · Replies 3 ·
Solve for Initial Velocity: Football Field Goal Problem | No Air Resistance
- Phy.Student
- · Replies 1 ·
Moment of inertia and rotational kinetic energy
- pb23me
- · Replies 2 ·
What is the magnitude of the torque in this scenario?
- BIOPSYCH
- · Replies 2 ·
Collision of cars - calculate mass
- BobbyTee
- · Replies 8 ·
Velocity of football kick problem
- Phy.Student
- · Replies 3 ·
Time it takes for water to boil
- ian 610
- · Replies 1 ·
Magnetic Induction Homework: Find Displacement FA
- zorro
- · Replies 9 ·
Force on a sphere in flowing water and velocity of water
- come2ershad
- · Replies 1 ·
Most probable speed of aluminium atoms
- Bugsy23
- · Replies 2 ·
Spring Acceleration: Does Velocity = 0 Mean a = 0?
- IKonquer
- · Replies 1 ·
Work out the tension on a string
- jimmy42
- · Replies 5 ·
A patient is undergoing open heart surgery
- wanted1
- · Replies 3 ·
What Does It Cost to Use Electrical Appliances in Different Scenarios?
- wanted1
- · Replies 5 ·
Calculating Force in a Hydraulic Press
- C-A-L
- · Replies 6 ·
Calculating Torque: How to Find Torque with Vector r, Acceleration a, and Mass m
- nameVoid
- · Replies 1 ·
What is the specific gravity of the disk?
- sona1177
- · Replies 2 ·
Equilibrium of Two Uniform Rods over a Cylinder: Solution
- Idiot_1
- · Replies 1 ·
Deriving Equation for Water Depth After Tank Hole Poked
- gboff21
- · Replies 3 ·
Step up transformer + ac generator question
- tobz102
- · Replies 3 ·
Light Phenomena: Reasons Explained
- AlchemistK
- · Replies 1 ·
Spring Balance: Mass or Weight? Clearing Out Confusion
- Peter G.
- · Replies 6 ·
How Much Energy is Needed for a Carnot Refrigerator to Convert Water to Ice?
- ian 610
- · Replies 3 ·
Calculating max. speed of car over humpback bridge before it leaves the ground?
- Sleve123
- · Replies 6 ·
What is the EMF of a coil with a changing magnetic flux?
- ian 610
- · Replies 2 ·
How Much Force to Lower Two Boxes Down a Ramp at Constant Speed?
- truthlies217
- · Replies 6 ·
What is the Tension in the Ropes Connecting Blocks A, B, and C?
- kring_c14
- · Replies 24 ·
Spring force, find the speed at equilibrium
- P-Illiterate
- · Replies 3 ·
What Is the Phase Constant of the Wave?
- smpolisetti
- · Replies 3 ·
What are the forces on the supports of a diving board?
- UNknown 2010
- · Replies 1 ·