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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Consider the motion of a point mass m in the potential V(r)
- Muskovite
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Ratio of effective and average voltage
- crom1
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Checking Your Work: Did I Solve #14 Correctly?
- Marcin H
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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
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What is the Minimum Coefficient of Static Friction to Keep the Wedge Stationary?
- UchihaClan13
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Conceptual Collision Question -- What
- golf20
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How Fast Will You Hit the Ground on a Planet with Reduced Gravity?
- Flinze
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Proof that COF depends only on asperities
- ashym
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How Does Force Affect the Acceleration of Block B in a Pulley System?
- Prof. 27
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Verifying a solution to Damped SHM
- RJLiberator
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Rod rotating about pivot with spring
- ClassicalMechanist
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Calculating the time to reach a potential difference
- ShashVerma
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Are the S' Axes Nonorthogonal in a Spacetime Diagram?
- Broseidon
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Voltage vs. Current Sources: Understanding the Differences
- Marcin H
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Kinetic energy of a hollow cylinder
- lilphy
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Thermodynamics problem involving adiabatic vessels
- Titan97
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Investigating real-world situation
- BubblesAreUs
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What Force Does the Top Link Exert on the Middle Link in a Suspended Chain?
- terryds
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When Does a Bouncing Ball Come to Rest?
- DeldotB
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Projectile Motion Cat Ledge Problem Solution
- kj99
- · Replies 6 ·
Find the mass and side length of unknown ice cube?
- Adam_9333
- · Replies 6 ·
Solving Pulley and Platform Homework w/ Acceleration
- judas_priest
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Why do we need to raise the whole pi_3 to power of -1/2?
- hotjohn
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How Much Force to Open a Cooled Pot Lid?
- mrlac1212
- · Replies 3 ·
Find Tangential Component of Acceleration and Curvature
- CGI
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Derive Radiation Pressure in terms of N, V, hf
- duran9987
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Find the largest initial velocity
- CGI
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Understanding Energy per Unit Weight: Solving the Equation for Height
- hotjohn
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Velocity in Hoses: Why is it Low and What Does it Mean?
- werson tan
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A rod falling on a frictionless surface
- ClassicalMechanist
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Understanding Why Force Along X-Axis is Different
- werson tan
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Understanding the Relationship between Turbulence and the Reynold Number
- werson tan
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Mass on Incline: Kinetic & Potential Energy
- b100c
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Spring constant of each spring when compressed
- HBurch614
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Electric field of a dipole at an offset point
- cj
- · Replies 7 ·
Resulting force after two objects collide
- Velouria555
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Does density affect the buoyancy of submerged objects?
- Velouria555
- · Replies 7 ·
SAT II Physics -- Induced current in loop (Faraday's law)
- krackers
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Measuring the Distance Between Two Galaxies
- Hannah755
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Two masses colliding relativistically
- TristanRE
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Forces and velocities in Baumgartner's space jump from 39 km
- Rumplestiltskin
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How does the law of conservation apply under these condition
- Henrybar
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Index of Refraction: Calculate ni for 10 cm Attenuation
- June_cosmo
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Head Loss Formula: Gamma Meaning Explained
- werson tan
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Measuring Voltages Across 10k, 100k, 1M & 4.7M Ohm Resistors
- balanto
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Swimming and Work: The Positive and Negative Effects on the Body
- praveen933
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What is the Angle of a Vector with x, y, and z Axes?
- Leelakrishna23
- · Replies 10 ·
Ball rolling and slipping with backspin
- ClassicalMechanist
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Finding velocity and acceleration vectors from rotational motion
- CGI
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How Do You Calculate Force and Direction in Particle Motion Problems?
- Rose15
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At What Angle Will This Box Begin to Slide?
- x2017
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Can Someone Explain Step 4 in the Buckingham Pi Theorem Homework?
- hotjohn
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How to Determine Electric Fields and Charge Distributions Between Metal Slabs?
- SaintDane123
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Rotational energy & rotating rod
- Valerie Prowse
- · Replies 21 ·
Pressure 2 m deep in a tank full of water
- SpiffyPhysics
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Problem involving gas laws and hydrostatics
- 1729
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Find the period of a small oscillation
- diredragon
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What direction is the net force acting on a car going around a circular track?
- Thewindyfan
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Change in Momentum using Vectors
- Priyadarshini
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How Large Should a Solar Sail Be to Counteract the Sun's Gravitational Pull?
- ft92
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Finding potential difference between two points in a ladder circuit
- arutor
- · Replies 6 ·
What Factors Influence Electric Shock When Exiting a Car?
- **Mariam**
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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
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Error propagation and significant digits
- Bolin
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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
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What is the unknown charge if the net electrostatic force on particle 1 is zero?
- Monkey_Man08
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What is the Vrms, in m/s, for helium atoms at 4.8 K?
- Ashley Cornwell
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Masses colliding because of central forces between them
- Satvik Pandey
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Chopper towing sensor, what is the tension?
- broginator
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Calculating Shear Stress: Solving for μ = ρv in 8-41 Equation
- hotjohn
- · Replies 7 ·
Elastic Collision on a Frictionless Track
- komarxian
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Photon colliding with stationary mass
- Dennydont
- · Replies 7 ·
Understanding the Continuity Equation for Mass Flow in Pipes
- hotjohn
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Max Spring Compression and Object Velocity on Frictionless Ramp
- Eva001
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Understanding Rolling Motion: Friction Forces and Velocity Changes
- xOrbitz
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How Does Glass Thickness Affect Refractive Index Calculation?
- kent davidge
- · Replies 1 ·
Calculating Phase Difference in Two-Mass Spring System | Homework Help
- ryandaniels
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How does the kinematic energy appear in the work integral?
- AntoineCompagnie
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Find the resistance of a wire (conductor)
- prishila
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Angle of deflection of electron
- azs8t1
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Calculating Distance for Accelerating Objects
- Rumplestiltskin
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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
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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 ·
Calculating Specific Gravity and Density of a Body
- Poquinha
- · Replies 1 ·
AP Physics Problem: Solving Homework Equations
- master_333
- · Replies 1 ·
Circular motion , the loop the loop
- NihalRi
- · Replies 3 ·