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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Kinematics Motion Average Speeds
- negation
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What is the acceleration of the elevator in these scenarios?
- Ally385
- · Replies 8 ·
How Do I Solve This Rotational Motion Problem?
- coldblood
- · Replies 3 ·
Components of torque in a solid sphere
- KiNGGeexD
- · Replies 27 ·
What is the Net Force on the Top of an Equilateral Triangle?
- Coco12
- · Replies 8 ·
Solving Energy of a System - Plotting Graphs & Calculating Cosθ
- haha1234
- · Replies 10 ·
Stress Calculation for a Reinforced Timber Tie with Aluminium Bar
- anthonyk2013
- · Replies 16 ·
What is the Solution to a Rotational Motion Problem?
- coldblood
- · Replies 4 ·
What is the solution to this rotational motion problem?
- coldblood
- · Replies 5 ·
Theory about electric field intensity
- Coco12
- · Replies 7 ·
What is the solution to this Rotational Motion problem?
- coldblood
- · Replies 2 ·
Latent heat of Fusion and transfer problem
- PhysicsStuff
- · Replies 6 ·
Stress and strain compound bar question
- anthonyk2013
- · Replies 9 ·
Why Is the Initial Speed of a Ball Thrown Vertically 19 m/s?
- athena04
- · Replies 2 ·
Gauss' Law for Infinite Sheets of Charge
- kazukamikaze
- · Replies 3 ·
Electromagnetism, dynamics and energy
- jchard
- · Replies 1 ·
What is the correct stress in the concrete column?
- anthonyk2013
- · Replies 6 ·
Why Does the Toroid's Magnetic Field Equation Use a Cubed Distance Term?
- richyw
- · Replies 3 ·
Solving the Yoyo Problem: Velocity After Fall of h
- KiNGGeexD
- · Replies 27 ·
Statistical Mechanics - Change in Entropy
- NewtonApple
- · Replies 2 ·
Egg Throw Physics: Protecting the Egg During a Building Drop
- azhang40
- · Replies 6 ·
Calculating Energy Required to Rotate a Spiral Spring by 180 Degrees
- KiNGGeexD
- · Replies 29 ·
Conservation of Energy and Angular Speed.
- astro2525
- · Replies 6 ·
A 1130-kg car is held in place by a light cable on a frictionless ramp
- mirs
- · Replies 5 ·
How much water is needed to cool a block of aluminum to a specific temperature?
- PhysicsStuff
- · Replies 4 ·
Circular Motion: Why Centripetal Accel Negative in i Dir & Positive in j Dir?
- haha1234
- · Replies 2 ·
Solving for an angle in 2-D kinematics
- Ascendant78
- · Replies 6 ·
How Much Does the Spring Compress When Hit by a Rolling Ball?
- mrknowknow
- · Replies 11 ·
Solve 1-D dynamics problem using integration and ?
- Ascendant78
- · Replies 4 ·
How Fast Must a Book Be Tossed to Clear a Windowsill?
- negation
- · Replies 3 ·
Strength of magnetic field required to balance gravitational force
- astru025
- · Replies 6 ·
Calculating Angular Acceleration for a Rotating Compact Disc
- gcombina
- · Replies 5 ·
Mass places o that it is in equilibrium
- mrknowknow
- · Replies 1 ·
How Fast Were the Trains Moving at the Point of Collision?
- negation
- · Replies 21 ·
Can Constants with Variables Cancel Out to Create a Constant?
- nedd
- · Replies 4 ·
Electric field magnitude midway between 2 charges
- astru025
- · Replies 2 ·
How Can You Prove the Voltage-Time Relationship Using Logarithms and Graphs?
- lewisbedwell
- · Replies 3 ·
Centripetal Force Lab Questions?
- master x964
- · Replies 3 ·
Calculate Momentum Change for a 1.0 kg Firecracker at 25 m/s Launch Speed
- Lacnez
- · Replies 33 ·
Finding the point where the net electric field is zero
- rakeru
- · Replies 2 ·
Centripetal Force Lab Questions?
- master x964
- · Replies 2 ·
Differing weight on scales depending on approach
- Fineline00
- · Replies 11 ·
Calculate the kinetic energy of the mass
- brown20b
- · Replies 5 ·
1 gram of water @ 10Celsius + 1 calorie of heat =1 gram of water @
- manal950
- · Replies 1 ·
Angle Between a & b When |a| = |b| = |a-b| or |a+b|
- patrickmoloney
- · Replies 1 ·
Circular Motion Homework: Solving Part (B) & Understanding Centripetal Force
- haha1234
- · Replies 13 ·
Electric field midway between an electron and proton. Help
- astru025
- · Replies 5 ·
Rotational dynamics with constant CM velocity
- trulyfalse
- · Replies 3 ·
Calculating Tension and Acceleration in a Pulley System with Applied Force
- Panphobia
- · Replies 33 ·
How Do You Calculate the Maximum Height of a Rocket Launched at 70 Degrees?
- KiNGGeexD
- · Replies 7 ·
Finding Maximum Speed of an Object - 24.4X9.8
- haha1234
- · Replies 2 ·
Calculating Capacitance: A Derivation
- raggle
- · Replies 1 ·
How to Apply Partial Differentiation to V=f(x²+y²)?
- patrickmoloney
- · Replies 3 ·
Can Rotation Affect the Linear Motion of an Object's Center of Mass?
- dieyn
- · Replies 2 ·
Factors Impacting Pressure in a Static Fluid
- babygirl8131
- · Replies 1 ·
N??Solving Electrostatic Fields Problems
- Coco12
- · Replies 17 ·
Finding the Resultant of Two Forces: A Vector Addition Problem
- MrMechanic
- · Replies 7 ·
Archimedes principle - special case
- Lucky7
- · Replies 3 ·
Electric field (at any point) due to a finite cylinder
- crazygirl89
- · Replies 3 ·
Falling Through Earth's Center
- Reefy
- · Replies 8 ·
How Do You Calculate Impact Duration and Average Force in Momentum Problems?
- UmarRules2000
- · Replies 4 ·
What would be the speed of the charge
- Thehumbleguy
- · Replies 1 ·
Derivatives of coordinate equations
- Rugile
- · Replies 6 ·
Potential energy: where is the error in my logic?
- Nikitin
- · Replies 1 ·
Need help finding electric field
- astru025
- · Replies 1 ·
Solving Stone Falling on Earth: Coriolis & Centrifugal Forces
- Karol
- · Replies 1 ·
Conservation of Momentum/Collision
- astro2525
- · Replies 7 ·
Finding Distance D Using Conservation of Energy
- patrickmoloney
- · Replies 13 ·
Magnetic Vector Potential and conductor
- sikrut
- · Replies 3 ·
Two gear system in static equilibrium
- Jage
- · Replies 1 ·
Adding three SHM oscillations of equal frequency?
- applestrudle
- · Replies 4 ·
Rolling without slipping and a string
- trulyfalse
- · Replies 2 ·
Electric Potential and Energy: Understanding the Movement of Negative Charge
- Coco12
- · Replies 10 ·
Images produced by a simple two lens microscope?
- Violagirl
- · Replies 1 ·
Centripetal/Tangential Acceleration
- PhysicsVA
- · Replies 4 ·
Amount of work done in an isothermal expansion
- pingo
- · Replies 5 ·
Rocket Launch Kinematics motion
- negation
- · Replies 3 ·
Maximizing Energy Conservation in Particle Motion on a Helix Wire
- teme92
- · Replies 4 ·
Wave sources vibrating out of phase (destructive/constructive)
- kurt1992
- · Replies 3 ·
Calculating Work Done by a Force on a Particle Moving Along the X-Axis
- torn616
- · Replies 2 ·
Max Velocity and Height of Roller Coaster Track
- Panphobia
- · Replies 2 ·
Frequency versus motor RPM and number of poles
- DunceKirchhoff
- · Replies 3 ·
Determining directions of electric fields
- Coco12
- · Replies 13 ·
Kinematics: Catch Ball Dropped from Balloon After 24.7s
- negation
- · Replies 7 ·
Physics 2: Electromagnetic Theory (Amperè's Law, Biot-Savart, etc)
- PropulsionMan
- · Replies 4 ·
Why Is Calculating Slit Spacing in a Diffraction Grating Confusing?
- embphysics
- · Replies 5 ·
Find mass flow rate using heat differential
- mckray
- · Replies 2 ·
What is the period of the spring's motion after the car strikes it?
- frownifdown
- · Replies 1 ·
Finding flux through a part of infinite disc
- Saitama
- · Replies 10 ·
How Do Two Divers' Speeds Compare When Jumping from a 3m Platform?
- negation
- · Replies 4 ·
(Elastic collision / shadow problem) I suspect my professor is wrong.
- firefight33
- · Replies 9 ·
How Does Speed Influence Complete Revolutions in Circular Motion?
- teme92
- · Replies 8 ·
How Do You Calculate the Initial Speed to Throw a Ball Downward from a Building?
- negation
- · Replies 6 ·
How Do You Calculate Net Force Components on a Tilted Surface?
- STEMucator
- · Replies 2 ·
Solve Resultant Forces Homework Problem 1.23 | Attached Figure & Variables
- MrMechanic
- · Replies 3 ·
How Fast Was the Rock Thrown to Meet the Helicopter?
- Medgirl314
- · Replies 28 ·
Zeeman Effect Lab Homework: Measuring Rings for Bohr Magneton
- mxotoni
- · Replies 1 ·
How Does the Center of Mass Move in a Two-Block System Connected by a Spring?
- Astrum
- · Replies 5 ·
How Is Buoyancy Calculated for a Cubical Block Floating in a Denser Liquid?
- hvthvt
- · Replies 3 ·
Is This the Correct Method to Solve the Conservation of Energy Problem?
- teme92
- · Replies 4 ·