Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Finding turns per meter in a solenoid
- rosstheboss23
- · Replies 1 ·
Escape velocity FROM a satellite in orbit?
- vineroon
- · Replies 4 ·
Confusing ROTATIONAL RIGID BODY QUESTION problem conceptualizing
- avenkat0
- · Replies 9 ·
Find Tension in Cable for 4.0m Beam w/ 1200N Weight
- DH214
- · Replies 1 ·
Total magnetic field from two long parallel wires
- physstudent1
- · Replies 1 ·
What are the final direction and speeds of two colliding billiard balls?
- Bones
- · Replies 15 ·
Complicated disk rolling problem (Angular Momentum and it's ilk)
- ultrapowerpie
- · Replies 20 ·
Why does a real image from the first lens surface become the object for the second?
- Gear300
- · Replies 6 ·
Gyroscope- Angular Speed, Rotational Kinematics, Precession
- jcwhitts
- · Replies 2 ·
Finding charge of a uniformly charged disk
- minase
- · Replies 1 ·
What Angle Does the Block Hang at When the Van Rounds a Curve?
- livblue23
- · Replies 1 ·
What is the Horizontal Speed of the Second Fragment After the Shell Explodes?
- shimizua
- · Replies 1 ·
Angular Acceleration of a hammer
- matyash
- · Replies 2 ·
What is the vector diagram for a falling egg's momentum at 10m/s?
- wasi90lk
- · Replies 4 ·
Calculating Centripetal Force on a Child Riding a Ferris Wheel
- leisiminger
- · Replies 3 ·
What is the Tension in 2 Strings with a 119N Mass and Given Angles?
- swede5670
- · Replies 6 ·
Coefficient of friction and tension
- lax1113
- · Replies 1 ·
What is the Initial Velocity v0 in a Perfectly Elastic Collision?
- sktgurl930
- · Replies 3 ·
Melting and boiling temperatures of different substances
- riyada
- · Replies 2 ·
Buoyancy without density of fluid
- Vanessa23
- · Replies 1 ·
Angle a Block swings while a van turns?
- eatingblaa
- · Replies 1 ·
Three electricity questions about electrons, charge, and Coulomb's law
- Jp_Garant
- · Replies 2 ·
Pulley and tensions in string segments
- ritwik06
- · Replies 1 ·
Expansion of ideal gas into a vacuum
- erty
- · Replies 8 ·
Determine the angle of the neutron
- Bones
- · Replies 1 ·
What Is the Center of Mass Position for Three Aligned Cubes?
- Bones
- · Replies 1 ·
Stability of Drink and Bottle on Train Table
- TFM
- · Replies 7 ·
How Do You Determine the Overall Spring Constant in a Dual-Spring System?
- lobrice
- · Replies 1 ·
Calculating Torque: Net Torque for 2 Forces Applied in a Plane
- cali_sk8er205
- · Replies 3 ·
Checking kinetic energy and acceleration from constant power
- david18
- · Replies 1 ·
Bullet embedding in block with spring and friction
- Thepoint
- · Replies 1 ·
Using an angle and time to find Acceleration
- swede5670
- · Replies 6 ·
Induced current in a non-uniform magnetic field through a square loop
- krugertown
- · Replies 1 ·
Relating block and loop accelerations with a moving pulley
- ritwik06
- · Replies 1 ·
What Is the Time to Maximum Speed in a Simple Pendulum?
- eatingblaa
- · Replies 2 ·
What Determines the Period of a Physical Pendulum?
- jbgibson
- · Replies 2 ·
Problem iwth calculating the movement of my solar car
- greeklegend14
- · Replies 2 ·
How Is Acceleration Calculated in a Pulley System with Friction?
- Kingrick
- · Replies 5 ·
Why Does a Teardrop-shaped Roller Coaster Loop Improve Safety and Performance?
- frosti
- · Replies 1 ·
Angualar Acceleration of swinging rod
- scarletcrimso
- · Replies 1 ·
Ladder Equilibrium: Can 65kg Person Climb Without Slipping?
- RedBarchetta
- · Replies 1 ·
Normal force, acceleration and tension
- livblue23
- · Replies 1 ·
Calculating Energy Transfer for 75kg Boy Sliding Down Hill
- phys1618
- · Replies 1 ·
Inelastic collision: finding initial velocity of projectile
- phys1618
- · Replies 1 ·
Vector Motion Problems: Finding Direction and Speed of a Plane
- zack558
- · Replies 2 ·
Conservation of energy problem (projectile with air drag)
- azure kitsune
- · Replies 2 ·
Rotational Kinetic ENERGY (well laid out)
- avenkat0
- · Replies 2 ·
How do you solve this simple differential equation?
- elcotufa
- · Replies 3 ·
Solving Blood Pressure Problem with Fluids: Pressure
- maniacp08
- · Replies 5 ·
What Is the Final Velocity and Direction of Two Colliding Skaters?
- uno
- · Replies 3 ·
What Determines the Monkey's Acceleration When It Stops Climbing?
- mbisCool
- · Replies 1 ·
Energy in a spring-mass system problem
- lebprince
- · Replies 8 ·
Elevator Problem: Find Scale Reading in Falling Elevator
- Toxage
- · Replies 3 ·
Forced oscillation amplitude with 2 kg mass and spring constant 20 N/m
- kash25
- · Replies 5 ·
Air Resistance of coffee filter
- lebprince
- · Replies 5 ·
Calculating Radius of Jupiter's Orbit: A Synchronous Satellite Problem
- leisiminger
- · Replies 1 ·
Calculating Electric Forces and Fields for Multiple Point Charges
- soccerdude28
- · Replies 2 ·
3D equilibrium with a force constrained to the xy plane
- Oblivion77
- · Replies 1 ·
Finding magnitude of external field from two magnetic fields
- rosstheboss23
- · Replies 2 ·
Finding Speed at Point A for Particle on Curved Runway
- Inertialforce
- · Replies 1 ·
Pendulum, find the damping constant of the air.
- hemetite
- · Replies 1 ·
Gravitational attraction between 3 masses.
- lsatwd
- · Replies 2 ·
Block Pulled Up Slope/Coefficient Of Kinetic Friction.
- kaylanp01
- · Replies 6 ·
How Do You Calculate Rope Tension with a Hanging Boy?
- CyndiRae
- · Replies 1 ·
Which box ends up moving faster
- 05holtel
- · Replies 1 ·
Circular motion of a train magnitude and angle
- tyro008
- · Replies 1 ·
Rotational KINEMATICS (confusing)
- avenkat0
- · Replies 5 ·
Moment of Inertia of a Disk rotating around a rod
- thejinx0r
- · Replies 7 ·
Finding centripetal force for star orbiting galaxy center
- lalalah
- · Replies 4 ·
What Diameter Should Parachutes Be to Slow a Landing Aircraft?
- Spimon
- · Replies 7 ·
Solve Bungee Jump Issue: Derive Expression for x Double Dot, Show mg >= kh/4
- Aihara
- · Replies 1 ·
Calculating Speed of Mass on a Spring
- lebprince
- · Replies 2 ·
Electron transmission naming conventions
- Andrusko
- · Replies 1 ·
Force and Kinetic friction problem
- bmandrade
- · Replies 25 ·
Potential energy and speed with conservative force F=-3.0x-5.0x²
- Kudo Shinichi
- · Replies 5 ·
What Is the Acceleration of Masses on an Inclined Plane with Friction?
- leisiminger
- · Replies 1 ·
How is the acceleration of objects on an inclined plane determined?
- leisiminger
- · Replies 9 ·
1 dimensional elastic collision
- IniquiTrance
- · Replies 4 ·
Determining the Force acting on a Particle
- kacete
- · Replies 1 ·
Hanging sign question - equillibrium (with picture)
- strangemagic
- · Replies 1 ·
Find power given:velocity,CoFriction,Mass,slope angle
- helpmedude
- · Replies 7 ·
Solving AP Physics: Spring Compression Problem
- devolg632104
- · Replies 1 ·
Force on coaster = ma(c) + ma(g) ?
- CaptainADHD
- · Replies 3 ·
Finding the number of revolutions for an car in an angular system
- tyro008
- · Replies 2 ·
Cant get to grips with re arranging formulae
- chaz699
- · Replies 28 ·
Finding time in circular motion
- tyro008
- · Replies 10 ·
Canceling Magnetic Field between two wires using an external force
- rosstheboss23
- · Replies 2 ·
What are the Work and Energies of Mass A and B in a Pulled System?
- Eternal Sky
- · Replies 2 ·
Speed Ratio of Particle A to B?
- bmandrade
- · Replies 14 ·
Magnitude and Direction of Force
- chadovP
- · Replies 5 ·
Deriving Cv from internal energy expression with Debye model
- mhellstrom
- · Replies 3 ·
Finding the Stretch in a Spring for a 2D Equilibrium Problem
- Oblivion77
- · Replies 19 ·
What Spring Constant is Needed for a Spring-Launched Roller Coaster?
- cyclemun
- · Replies 8 ·
How to Find the Balancing Mass and Supporting Tension in a Beam?
- Kingrick
- · Replies 1 ·
How is kinetic energy distributed in an explosion with unequal masses?
- afjunkie
- · Replies 12 ·
Drawing Lines at the Right Angle
- david18
- · Replies 1 ·
Projectile motion. Relationship between R and theta
- kevinfoss7
- · Replies 2 ·
How Do Forces Change as You Climb a Ladder?
- Inertialforce
- · Replies 3 ·
Magnetic Flux and Faraday's Law
- Kathi201
- · Replies 13 ·
How Is the Force of Friction Calculated for a Block Against a Wall?
- thaixicedxtea
- · Replies 1 ·