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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Characteristics of traveling waves
- Shackleford
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A woman has a large stone in her yard. She lives at the equator and
- lildrea88
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Momentum, conservation of linear momentum problem
- jehan4141
- · Replies 1 ·
Finding net force on a car in mud without knowing its mass
- *sperry*
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Find mass given acceleration and upward force
- zonesthesia93
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Inelastic Collisions and ratio of their masses
- sleepingarmy
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What Is the Electric Field Strength in a Glass Sphere with a Point Charge?
- Lunar_Lander
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Why taking torque about the ground point below the center of mass gives wrong results
- eptheta
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Acceleration of the center of mass
- sodaboy7
- · Replies 14 ·
Spring length hanging down and horizontal
- dav1d
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Is Energy Lost When a Liquid Vaporizes and Gained When a Gas Condenses?
- jackcie
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How Do You Calculate Tension and Work for a Sledge Pulled at an Angle?
- cjknowland
- · Replies 5 ·
Perpendicular force required to stop an object, with respect to friction
- DanielAudi
- · Replies 1 ·
Fastest velocity possible for a 90 degree turn
- Acetone
- · Replies 12 ·
How Do Forces on a Balance Change When a Man Throws a Ball?
- Tosh5457
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Finding displacement with coefficient of friction, mass and velocity
- Serendipitydo
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How Do You Determine the Location and Resistance of a Twig on a Telephone Line?
- aguycalledwil
- · Replies 8 ·
How Does Mass Affect Static Friction on Different Sized Balls on a Ramp?
- marshall4
- · Replies 7 ·
Roational Mechanics of Helicopter Blades
- Zyxer22
- · Replies 4 ·
What is the Explanation for Inelastic Collisions in Physics?
- omkhan95
- · Replies 1 ·
String tension and buoyancy on a submerged object
- cnoa
- · Replies 1 ·
Effective Resistance of a circuit
- logearav
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Are the Radii R1 and R2 of a Lens Always the Same?
- logearav
- · Replies 3 ·
Rocket reaching 330 m/s with hanging instrument wire constraint
- DKphysics
- · Replies 6 ·
Why does a CD player operate at 24V not 240V
- AHUGEMUSHROOM
- · Replies 7 ·
Calculating Momentum Impulse During Thunderstorm
- chessmath
- · Replies 1 ·
Checking force diagrams for object swung in vertical circle
- Miike012
- · Replies 4 ·
Energy and gravitation problem
- NewtonianAlch
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Find the power of a boat that accelerated
- jehan4141
- · Replies 3 ·
How can I solve for the mass and radius in this uniform circular motion problem?
- ajcairns1980
- · Replies 1 ·
Boat crossing a river with current flowing east to west
- azngirl92
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Solving for net flux, given x- and y- components of electric field, E
- Lemon-Sam
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Why use cos for tangential and sin for radial acceleration components
- nukeman
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Work, power, acceleration problem
- jehan4141
- · Replies 2 ·
Linear differential equations: source term constant
- Morphheus
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Mass sliding down a ramp - acceleration from Newton's 2nd law
- nukeman
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Finding theta(t) for balanced system with water pouring into lower mass
- GreenPrint
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Package drop from plane at angle: how to set up the problem?
- amd123
- · Replies 14 ·
Fun Physics/Calculus Problem
- rohit_patel
- · Replies 2 ·
Magnetic force on current-carrying wire with 36V, 0.8m, 0.7T
- dimpledur
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Average Power of a Car: How to Calculate and Understand It
- eshock202
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Calculating Kinetic Energy with Rotational Motion
- embudini
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Determing Resistance of metal with temperature coefficient of resistance
- eximius
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Energy stored in electric field between charged concentric spheres
- Fluorescent
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What is the significance of torque angle in screw applications?
- rabble21
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Force done by the spring if a weight is attached
- dav1d
- · Replies 4 ·
Acceleration of 3kg mass suspended by two ropes at 45°
- rk2658
- · Replies 3 ·
Motional EMF (direction of moving bar)
- sandy.bridge
- · Replies 3 ·
Solving an Electric Field Due to an Infinite Cylinder
- TrolliOlli
- · Replies 5 ·
I dont understand how to find the work done
- snash1057
- · Replies 3 ·
Angle of Deflection of an electron in an magnetic field
- Lunar_Lander
- · Replies 4 ·
How Do You Correctly Calculate the Electric Field Under a Thundercloud?
- nathangrand
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How Do You Calculate the New Angular Speed of Coupled Wheels?
- 1MileCrash
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Displacement of spring of a block going down an incline
- joedango
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How Do You Calculate Electric Fields and Forces Between Charged Rods?
- acedeno
- · Replies 7 ·
Test whether constant incline is constant acceleration
- BuhRock
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Pumpkin in Cannon Acceleration Problem
- bman123
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Big anaconda orbiting the planet
- paul-g
- · Replies 4 ·
Moment of inertia of a semicircle
- kottur
- · Replies 10 ·
Confusion about the potential reference point
- jegues
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Finding perpendicular force on incline plane.
- shadegrey
- · Replies 3 ·
Finding the Coefficient of friction on an incline plane
- Trent Horn
- · Replies 5 ·
Conservation of energy/inclined plane w/ spring
- austindubose
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Statics of body in two dimensions
- togo
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Find the Maximum Mass for Riding a Swing
- overside
- · Replies 5 ·
Calculating unknown forces using the principle of moments.
- Craptola
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Is a spring longer hanging or flat on a table?
- dav1d
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Why is acceleration due to gravity positive or negative on a velocity-time graph?
- p.ella
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Eigenfunctions and hermitian operators
- baldywaldy
- · Replies 9 ·
Speed needed for ball2 to collide with ball1 in flight
- catherine Sir
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Two-dimensional kinematics: Projectile Motion
- macha9907
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How can you stop it from descending without friction?
- fl00f
- · Replies 12 ·
What is work done by gravity when lifting an object?
- ttttrigg3r
- · Replies 7 ·
Center of mass of a semicircular plate using integration
- kottur
- · Replies 8 ·
Physics banking problems w\ friction.
- JeremyWsmith
- · Replies 1 ·
Rolling Solid Disk: Angular Speed, Energy Loss, & Distance
- lx2
- · Replies 5 ·
Multiple choice question involving conservation of energy on inclined planes
- mkwiatko
- · Replies 1 ·
Block Pushed Up a Vertical Wall
- AngeliaGW
- · Replies 7 ·
SHM period of two opposite charges on springs toward each other
- Asphyx820
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How Accurate Is the Calculation of Potential Energy Change at High Altitudes?
- studentxlol
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Launching of a Potato (Involve kinetic and potential energy and an angle )
- bluey2014
- · Replies 6 ·
Photoelectric effect and determining the planckconstant
- Nikitin
- · Replies 4 ·
Struggling with Kinetics and Projectile Motion?
- MrSpades
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Kinetic energy and potential energy concept question
- channel1
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Final Velocity of Hockey Puck: 40.0 m/s to ?
- Miike012
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DC Circuit and an Inductor - Q on potentials
- milky9311
- · Replies 5 ·
Change in potential energy of water falling 50m over Niagara Falls
- warrior2014
- · Replies 7 ·
Rocket accelaation at the start of fuel burn
- nag
- · Replies 5 ·
Block on 30° incline with friction: did I get 0.302 m?
- QuarkCharmer
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Circular Motion and Gravitation of asteroid
- valeriex0x
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Why Do Long Steam Pipes Often Have a U-Shaped Section?
- JSGandora
- · Replies 7 ·
Projectile Motion (Find T with ΔDx, ΔDy, θ, and A?)
- misterwiddle
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Gravitational forces and multiple bodies problem
- jonathng
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What Angle Should the Shortstop Throw the Ball to Reach Home Plate Directly?
- xgdoyo
- · Replies 1 ·
How Does Atwood's Machine Demonstrate Conservation of Energy?
- LastXdeth
- · Replies 3 ·
Stones thrown from different heights
- lalahelp
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Kirchhoff's current law and nodal analysis
- jonmondalson
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Force on suspended crate from position function at t=3.60 s
- Crusaderking1
- · Replies 18 ·
Best way to graphically draw vectors for lab report?
- Nano-Passion
- · Replies 5 ·
What is the role of motional emf in opposing motion?
- sandy.bridge
- · Replies 4 ·