Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What Is the Value of b for Critical Damping in a Spring Balance?
- RJLiberator
- · Replies 15 ·
Calculating acceleration of plane when given mass, friction force and Vi
- Blobikins
- · Replies 2 ·
At what point along the x axis is the electric field zero?
- A14
- · Replies 5 ·
Consider the motion of a point mass m in the potential V(r)
- Muskovite
- · Replies 1 ·
Ratio of effective and average voltage
- crom1
- · Replies 1 ·
Checking a circuit problem with Kirchhoff's current law
- Marcin H
- · Replies 40 ·
Voltage drop and transformer improvement
- AstroJMT42
- · Replies 5 ·
How Is Average Power Calculated in a Series RLC Circuit?
- crom1
- · Replies 5 ·
An insulating sphere inside a conducting sphere questions
- jpruim
- · Replies 1 ·
What is the Minimum Coefficient of Static Friction to Keep the Wedge Stationary?
- UchihaClan13
- · Replies 9 ·
Conceptual Collision Question -- What
- golf20
- · Replies 2 ·
How Fast Will You Hit the Ground on a Planet with Reduced Gravity?
- Flinze
- · Replies 9 ·
Proof that COF depends only on asperities
- ashym
- · Replies 1 ·
How Does Force Affect the Acceleration of Block B in a Pulley System?
- Prof. 27
- · Replies 1 ·
Verifying a solution to Damped SHM
- RJLiberator
- · Replies 4 ·
Rod rotating about pivot with spring
- ClassicalMechanist
- · Replies 4 ·
Calculating the time to reach a potential difference
- ShashVerma
- · Replies 6 ·
Are the S' Axes Nonorthogonal in a Spacetime Diagram?
- Broseidon
- · Replies 3 ·
How to identify whether a source is voltage or current
- Marcin H
- · Replies 2 ·
Kinetic energy of a hollow cylinder
- lilphy
- · Replies 22 ·
Thermodynamics problem involving adiabatic vessels
- Titan97
- · Replies 1 ·
Why do cylindrical candles float on their base or side?
- BubblesAreUs
- · Replies 1 ·
What Force Does the Top Link Exert on the Middle Link in a Suspended Chain?
- terryds
- · Replies 11 ·
When Does a Bouncing Ball Come to Rest?
- DeldotB
- · Replies 5 ·
Projectile Motion Cat Ledge Problem Solution
- kj99
- · Replies 6 ·
Find the mass and side length of unknown ice cube?
- Adam_9333
- · Replies 6 ·
Two workers pulling on ropes over pulleys to raise a platform
- judas_priest
- · Replies 35 ·
Why do we need to raise the whole pi_3 to power of -1/2?
- hotjohn
- · Replies 2 ·
How Much Force to Open a Cooled Pot Lid?
- mrlac1212
- · Replies 3 ·
Find Tangential Component of Acceleration and Curvature
- CGI
- · Replies 3 ·
Derive Radiation Pressure in terms of N, V, hf
- duran9987
- · Replies 1 ·
Find the largest initial velocity
- CGI
- · Replies 10 ·
Understanding Energy per Unit Weight: Solving the Equation for Height
- hotjohn
- · Replies 5 ·
Why is velocity low inside a hose if water needs to flow out?
- werson tan
- · Replies 7 ·
A rod falling on a frictionless surface
- ClassicalMechanist
- · Replies 19 ·
Understanding Why Force Along X-Axis is Different
- werson tan
- · Replies 11 ·
Why is complete turbulence independent of Reynolds number?
- werson tan
- · Replies 4 ·
Finding distance traveled by mass on incline using energy conservation
- b100c
- · Replies 1 ·
Spring constant of each spring when compressed
- HBurch614
- · Replies 2 ·
Electric field of a dipole at an offset point
- cj
- · Replies 7 ·
Resulting force after two objects collide
- Velouria555
- · Replies 3 ·
Does density affect the buoyancy of submerged objects?
- Velouria555
- · Replies 7 ·
SAT II Physics -- Induced current in loop (Faraday's law)
- krackers
- · Replies 8 ·
Measuring the Distance Between Two Galaxies
- Hannah755
- · Replies 1 ·
Two masses colliding relativistically
- TristanRE
- · Replies 5 ·
Forces and velocities in Baumgartner's space jump from 39 km
- Rumplestiltskin
- · Replies 8 ·
How does the law of conservation apply under these condition
- Henrybar
- · Replies 5 ·
Index of Refraction: Calculate ni for 10 cm Attenuation
- June_cosmo
- · Replies 2 ·
What does gamma mean in the head loss formula?
- werson tan
- · Replies 1 ·
Voltage across resistors with voltmeter internal resistance
- balanto
- · Replies 5 ·
What kinds of work are done on the body while swimming?
- praveen933
- · Replies 6 ·
What is the Angle of a Vector with x, y, and z Axes?
- Leelakrishna23
- · Replies 10 ·
Ball rolling and slipping with backspin
- ClassicalMechanist
- · Replies 8 ·
Finding velocity and acceleration vectors from rotational motion
- CGI
- · Replies 15 ·
How Do You Calculate Force and Direction in Particle Motion Problems?
- Rose15
- · Replies 4 ·
At What Angle Will This Box Begin to Slide?
- x2017
- · Replies 3 ·
Can Someone Explain Step 4 in the Buckingham Pi Theorem Homework?
- hotjohn
- · Replies 5 ·
How to Determine Electric Fields and Charge Distributions Between Metal Slabs?
- SaintDane123
- · Replies 3 ·
Angular acceleration and speed of falling rod pivoted at end
- Valerie Prowse
- · Replies 21 ·
Pressure 2 m deep in a tank full of water
- SpiffyPhysics
- · Replies 12 ·
Problem involving gas laws and hydrostatics
- 1729
- · Replies 6 ·
Find the period of a small oscillation
- diredragon
- · Replies 11 ·
What direction is the net force acting on a car going around a circular track?
- Thewindyfan
- · Replies 8 ·
Change in Momentum using Vectors
- Priyadarshini
- · Replies 4 ·
How Large Should a Solar Sail Be to Counteract the Sun's Gravitational Pull?
- ft92
- · Replies 1 ·
Finding potential difference between two points in a ladder circuit
- arutor
- · Replies 6 ·
What Factors Influence Electric Shock When Exiting a Car?
- **Mariam**
- · Replies 7 ·
Solve Kinematic Problems with Graphs?
- anthonybommarito1
- · Replies 5 ·
Tension in string for a bob pendulum
- Nicholaz99
- · Replies 11 ·
Satellite Orbiting: Speed, Period, Altitude Calc.
- squeak
- · Replies 2 ·
Error propagation and significant digits
- Bolin
- · Replies 3 ·
A light string is wrapped around a solid cylinder
- robbyrandhawa
- · Replies 22 ·
Finding time in a simple harmonic motion
- Janiceleong26
- · Replies 10 ·
Calculating Kinetic Energy in English Units
- Chemmajor2017
- · Replies 1 ·
Potential energy variation = work of -(conservative forces)
- AntoineCompagnie
- · Replies 3 ·
What is the unknown charge if the net electrostatic force on particle 1 is zero?
- Monkey_Man08
- · Replies 2 ·
What is the Vrms, in m/s, for helium atoms at 4.8 K?
- Ashley Cornwell
- · Replies 2 ·
Masses colliding because of central forces between them
- Satvik Pandey
- · Replies 24 ·
Chopper towing sensor, what is the tension?
- broginator
- · Replies 5 ·
Why do the units not match for μ = ρv?
- hotjohn
- · Replies 7 ·
Elastic Collision on a Frictionless Track
- komarxian
- · Replies 2 ·
Photon colliding with stationary mass
- Dennydont
- · Replies 7 ·
Continuity equation for mass flow in pipes
- hotjohn
- · Replies 1 ·
Max Spring Compression and Object Velocity on Frictionless Ramp
- Eva001
- · Replies 3 ·
Understanding Rolling Motion: Friction Forces and Velocity Changes
- xOrbitz
- · Replies 5 ·
How Does Glass Thickness Affect Refractive Index Calculation?
- kent davidge
- · Replies 1 ·
Phase difference between mass system and driver at 0.2Hz
- ryandaniels
- · Replies 6 ·
How does the kinematic energy appear in the work integral?
- AntoineCompagnie
- · Replies 3 ·
Find the resistance of a wire (conductor)
- prishila
- · Replies 7 ·
Angle of deflection of electron
- azs8t1
- · Replies 2 ·
Calculating Distance for Accelerating Objects
- Rumplestiltskin
- · Replies 16 ·
Distance traveled in the fifth second with uniform acceleration
- Rumplestiltskin
- · Replies 30 ·
Why don't all lights turn off when connected in parallel
- prishila
- · Replies 7 ·
Calculator (root) problem (Exam tomorrow) HP 10s assistance
- MrAAK
- · Replies 11 ·
What is the charge of the 10 billion electrons?
- Marcin H
- · Replies 20 ·
Projectile motion related problem
- Thewindyfan
- · Replies 3 ·
Find the resistance at 50 degrees C given resistance at 0 C
- prishila
- · Replies 3 ·
Difference between lights connected in series and parallel
- prishila
- · Replies 3 ·
Two colliding particles, finding ratio of M/m
- irhum31
- · Replies 5 ·
The resistance of a wire (conductor) in cylindrical form is:
- prishila
- · Replies 5 ·