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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Calculate rpm with circular motion
- Workout
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Why does rebounding cause more damage than sticking together in a collision?
- Meowserkitty
- · Replies 4 ·
Solving a Simple Problem: Frustration with Mechanics
- wuffle
- · Replies 3 ·
Payload calculation with dry mass fraction and mass ratio
- Biosyn
- · Replies 7 ·
Thermodynamics: Waste heat and total ice converted to steam
- jolierouge
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Maximum initial speed for critically damped oscillator not to cross origin
- Theorem.
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Will a water balloon hit a target 42 m away at 18° launch angle?
- JackandJones
- · Replies 17 ·
Dynamics - Motion in a Plane, Problem
- doctorjuice
- · Replies 1 ·
Sled being pulled by two people. Minimum tension and acceleration.
- charlygarcia
- · Replies 2 ·
Final velocity of rocket with exhaust velocity c
- PhysicsLoop
- · Replies 5 ·
Which point to sum the moments?
- theBEAST
- · Replies 2 ·
How Do You Calculate Rocket's Maximum Height and Velocity?
- monocomprendo
- · Replies 1 ·
What Causes T2 and T3 to Have No Torque in This Picture?
- MG5
- · Replies 2 ·
Refrigerator sliding on truck bed during maximum braking
- tachyon_man
- · Replies 1 ·
Parallel circuit with Kirchhoff's laws giving imaginary in quadratic
- Mdhiggenz
- · Replies 11 ·
Maybe a dumb question on standard error in equations
- JazzyJones
- · Replies 3 ·
Force of friction on different times
- charlygarcia
- · Replies 1 ·
Calculating Initial Speed for an Olympic Basketball Shot
- BWE38
- · Replies 6 ·
Elastic vs. Inelastic Collisions: Which is Better for Diverting an Asteroid?
- ahhppull
- · Replies 1 ·
Change in period due to a change in mass
- Flipmeister
- · Replies 5 ·
How do you measure how strong a spring is?
- KnightOfGlass
- · Replies 4 ·
Velocity of a Projection In Projectile Motion
- seallen
- · Replies 2 ·
Conservation of energy spring problem
- whynot314
- · Replies 1 ·
Finding Torque and Force for a Car w/ Two People
- aflowernamedu
- · Replies 2 ·
Elastic collision: 340 g cart at 1.2 m/s hits stationary cart
- johnhuntsman
- · Replies 5 ·
Where is the electric field zero for charges at origin and (1m, 0.5m)?
- Haythamgg
- · Replies 6 ·
Atomic Absorption of Electrons: Mercury
- AATroop
- · Replies 1 ·
Melting of ice with water thermodynamics problem
- Satis24
- · Replies 2 ·
How does tire pressure affect contact area?
- Feodalherren
- · Replies 5 ·
Infinite Square Well Electron Jumps from n=4 to ground state
- Mrbilly
- · Replies 1 ·
Work involving motion of object on inlined plane with force of a spring
- Violagirl
- · Replies 2 ·
SI Units for Pressure: N m^2 or N m^-2?
- Nubcake
- · Replies 3 ·
There MUST be steps to solving problems dealing with Conservation of Energy No?
- riseofphoenix
- · Replies 10 ·
Integrating to determine speed as a function of time
- AryRezvani
- · Replies 5 ·
Finding acceleration during a change in momentum
- FaraDazed
- · Replies 2 ·
How High Does the Block Go on the Ramp?
- kushlar
- · Replies 3 ·
Conservation of energy using a spring
- rwinge
- · Replies 4 ·
Force given mass and acceleration problem
- tworley1977
- · Replies 1 ·
How Does Stretching a Wire Affect Its Resistance Ratio?
- Mdhiggenz
- · Replies 7 ·
How Do You Calculate the Spring Constant for a Toy Car Accelerated by a Spring?
- Frosef19
- · Replies 1 ·
Collision of 2000 kg Cadillac and 1000 kg VW at intersection
- planauts
- · Replies 2 ·
Shifting coordinates for mechanical problems
- aaaa202
- · Replies 3 ·
Solving for Eigenvalues in a Finite Square Well with Both Walls Finite
- chris_avfc
- · Replies 1 ·
A spool of thin wire pivots on a shaft
- SereneKi
- · Replies 1 ·
Heat produce by electric current
- bnk0430
- · Replies 5 ·
Why is potential energy equal to kinetic energy for a swinging child?
- riseofphoenix
- · Replies 10 ·
Why Does the Image in a Rear View Mirror Appear to Approach at Double the Speed?
- Aditya3003
- · Replies 3 ·
Comparing Impacts: Momentum vs. Kinetic Energy
- lozzajp
- · Replies 5 ·
Solving a pulley system (Dynamics)
- mmanor
- · Replies 3 ·
Potential energy and electric potential
- Fabio010
- · Replies 5 ·
Moment of Inertia of Half a Sphere
- theBEAST
- · Replies 1 ·
Where Did I Go Wrong in My Doppler Effect Calculation?
- dido525
- · Replies 2 ·
Why Does a Pulley System Double the Upward Force on a Chair?
- trogdor5
- · Replies 1 ·
Work and potential energy for a block released from height 5.0R above a loop
- vysero
- · Replies 3 ·
Initial Velocity of Projectile Motion, given displacement and initial angle?
- allure
- · Replies 8 ·
Earth and moon where does gravity cancel out
- lozzajp
- · Replies 10 ·
Absolute uncertainty in repeated time measurements
- nchin
- · Replies 5 ·
Calculate Perceived Force of Raindrops: 4 Drops/sec, 1.6x10^-6 kg, 25 m/s
- mishima
- · Replies 2 ·
Why does the rocket equation predict infinite spacecraft mass?
- Biosyn
- · Replies 4 ·
Is the particle still moving at point C?
- riseofphoenix
- · Replies 15 ·
Forces Exerted on Objects in Contact
- doug1
- · Replies 1 ·
A stream of protons and electrons
- EsKiMoMoNKeY
- · Replies 1 ·
AP Physics: Momentum Change Calculated for Dropped Ball
- Silverbolt
- · Replies 5 ·
Force applied to block moving along table
- uph0
- · Replies 1 ·
Work Done: Find Solution for 2.7kg Mass Block
- dolpho
- · Replies 1 ·
Find Magnitude of Magnetic Field Along Bent Wire at Point P
- Northbysouth
- · Replies 1 ·
OL Exam Question on Relative velocity
- pcpssam
- · Replies 1 ·
Projectile Motion Lab vertical/horizontal motion?
- physics447
- · Replies 7 ·
Nonuniform Circular Motion: Old-Fashioned Amusement Park Ride
- Go Boom Now
- · Replies 2 ·
Sign of acceleration due to gravity problem
- mrcotton
- · Replies 3 ·
Object thrown vertically upwards reaching 25 m below starting point
- Darth Frodo
- · Replies 2 ·
What are common problems encountered when using a double pulley system?
- nu_hash
- · Replies 6 ·
How Does Horizontal Force Balance with Friction on an Inclined Plane?
- ngorecki
- · Replies 3 ·
Finding the y- component of velocity
- seallen
- · Replies 3 ·
Masses connected by a pulley on a frictionless surface
- DLH112
- · Replies 9 ·
Calculate the total amount of strain at fracture?
- TyErd
- · Replies 9 ·
How to find the coefficient of static friction.
- mateye10
- · Replies 4 ·
Moment that is affecting a ring
- kakadas
- · Replies 2 ·
Are the Material Properties in My Physics Library Accurate?
- RicardoTk
- · Replies 3 ·
Mini Golf Windmill: Find Minimum Linear Speed of Ball
- pmd28
- · Replies 2 ·
Determine the magnet's poles from an image
- kakadas
- · Replies 3 ·
How Do You Calculate Forces in a Two-Mass System on an Accelerating Scale-Pan?
- bubakazouba
- · Replies 15 ·
Quick look over friction pulley system
- ngorecki
- · Replies 25 ·
Revolutions per minute, angular deceleration
- Flucky
- · Replies 4 ·
How Can We Simplify the Hypergeometric Function for Easier Integration?
- Jane Dang
- · Replies 1 ·
What are single electron orbitals?
- dergu
- · Replies 1 ·
Number of bolts required for a flanged coupling?
- jacoja06
- · Replies 17 ·
How Do Impulse and Friction Affect Particle Dynamics and Block Motion?
- tommywan410
- · Replies 4 ·
Tricky problem worth 2 points on my final grade
- AryRezvani
- · Replies 13 ·
What is the Frictional Force on a Car Moving Down a 14% Incline?
- biotech4me
- · Replies 5 ·
Determining Scale Readings on an Atwood Machine
- doug1
- · Replies 1 ·
Change of weight with faster Earth rotation.
- tkninetyfive
- · Replies 2 ·
Solving for the friction without mass
- ngorecki
- · Replies 18 ·
Circuit with two voltage sources (Kirchoff Rules)
- XianForce
- · Replies 3 ·
Entropy of molten lead freezing
- jmm5872
- · Replies 2 ·
How Do You Calculate Hang Time and Velocity in Cat Jump Kinematics?
- highschoolbro
- · Replies 4 ·
Train emitting radio signal from tunnel midpoint in special relativity
- A.Brown
- · Replies 18 ·
Magnitude of the electric field in a copper wire.
- Pepjag
- · Replies 3 ·
Double Speed: Proton Acceleration with 2000MV Potential
- channel1
- · Replies 3 ·
Electrostatics question. just need a bit direction.
- PrashntS
- · Replies 3 ·