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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Finding Position with a Quadratic Velocity
- glockstock
- · Replies 1 ·
Ball thrown at wall: height and velocity components
- tjbateh
- · Replies 1 ·
What is the correct starting point for calculating projectile range in a lab?
- exparrot
- · Replies 1 ·
Physics Problems, could you tell me if I did them right?
- Ion1776
- · Replies 8 ·
Comet Orbit Astrophyiscs question
- dgoudie
- · Replies 1 ·
Accelaration and Free-fall problems
- Raheelp
- · Replies 1 ·
Car accelerates then brakes. What is its displacement?
- shizupple
- · Replies 7 ·
Find the tension in the rope and forces exerted by the floor
- deathnote93
- · Replies 2 ·
One dimensional motion problems
- cmculbert
- · Replies 2 ·
Avg. Acceleration of ball against a wall with two velocities
- shizupple
- · Replies 10 ·
Vertical Circles and Non-Uniform Circular Motion
- MechaMZ
- · Replies 6 ·
Coulombs Law, 4 separate charges.
- Nal101
- · Replies 4 ·
Why does the string behind a node stop oscillating when the boundary moves to the node?
- Eric_meyers
- · Replies 1 ·
X value closest to origin - phases difference - answer does not match teachers
- RedPhoenix
- · Replies 1 ·
An electron with known speed and distance from a proton moving away?
- zoomrocket88
- · Replies 9 ·
Projectile shot from 125m cliff at 65 m/s at 37°
- AC5FFw
- · Replies 23 ·
How Do You Calculate Tension in Different Cord Configurations?
- charlie_luna
- · Replies 1 ·
How Does Polarizer Orientation Affect Light Intensity?
- Babylady247
- · Replies 1 ·
Raising Air Temp in Living Room: Calculations Needed
- pin2win1313
- · Replies 3 ·
Gravitational Force Vector exerted by 2 charged objects
- Nal101
- · Replies 4 ·
Optics and height of mirror problem
- DanicaK
- · Replies 15 ·
Displacement Calculation for a Moving Cyclist
- FlipMC
- · Replies 5 ·
Finding thermal efficiency and heat flows from a heat engine diagram
- Ravey
- · Replies 6 ·
Maximum depth for a submarine window withstanding 1.00×10⁶ N
- mz.mary00
- · Replies 9 ·
Integrating dq to find that q(r) = Q(1-e^(-r/R))
- jk0921
- · Replies 3 ·
Misc. Conceptuals (Magnetism+Electric Field+ Rotational motion)
- shrabastee
- · Replies 4 ·
Acceleration of 30 kg block on pulley system with 12 kg and 18 kg masses
- mattmannmf
- · Replies 17 ·
Easy kinematic problem I've suffered an hour for
- SELFMADE
- · Replies 4 ·
Electric field of a charged nucleus (sphere) Gauss Law
- Boon28
- · Replies 9 ·
How High is the Cliff if You Hear the Rock Hit After 7 Seconds?
- devxx
- · Replies 1 ·
Deceleration. My answer is different from the books and it's driving me crazy
- laxboi33
- · Replies 6 ·
Homework help for introductory physics
- kyle72
- · Replies 1 ·
Why does the Pythagorean theorem extend to 3D vector magnitudes?
- tigerlili
- · Replies 3 ·
Sign conventions for front and back of lens in multi-element systems
- MichaelT
- · Replies 1 ·
Average acceleration from acceleration vs time graph
- swirly90
- · Replies 5 ·
Finding the angle of displacement for a watermelon seed
- tjbateh
- · Replies 12 ·
Work to move test charge near charged sphere
- wilson_chem90
- · Replies 5 ·
Initial Velocity (Without time and acceleration)
- djtsmith007
- · Replies 7 ·
Forces between two carts in four collision and contact scenarios
- Anirak
- · Replies 4 ·
Magnitude and angle of the displacement vector
- tjbateh
- · Replies 6 ·
How Fast Does a Cheetah Accelerate Compared to a Human Runner?
- nycjay222
- · Replies 1 ·
How Do You Round Numbers When Calculating Significant Figures?
- triden
- · Replies 1 ·
Kinematics Model Rocket problem
- nycjay222
- · Replies 1 ·
Acceleration Down an Inclined Plane Problem
- nycjay222
- · Replies 1 ·
One-dimensional Gravitational motion
- nycjay222
- · Replies 3 ·
How Does a Rocket Behave After Engine Shutdown?
- hantheman
- · Replies 1 ·
Analysis of Rocket Launch at 53 Degrees
- DeagleBeagle
- · Replies 12 ·
Kinematics Electrons In a Cathode Ray Tube
- nycjay222
- · Replies 1 ·
Finding velocity and acceleration components from position vector
- tjbateh
- · Replies 10 ·
How Does a Falling Chain Affect Scale Readings?
- Sam_Goldberg
- · Replies 1 ·
Car and truck collision distance with constant acceleration
- canucklekid
- · Replies 11 ·
How long until the planets collide?
- jgens
- · Replies 3 ·
Calculating Total Sound Intensity and Combined Sound Level: Ice Show Example"
- RedPhoenix
- · Replies 1 ·
Projectile Motion: Understanding Vertical and Horizontal Acceleration
- ENCJ
- · Replies 2 ·
Finding tension of the string while ball is at top of its path
- chenying
- · Replies 3 ·
Electrical potential difference given velocity
- famallama
- · Replies 6 ·
How Do You Calculate Revolutions Per Minute for an Astronaut in a Centrifuge?
- chenying
- · Replies 8 ·
How long will it take the rabbit to come to a momentary complete stop
- mcohen519
- · Replies 4 ·
How many kg of mercury to fill a 250ml container?
- wmsnyder
- · Replies 4 ·
Force on q1 from two charges in a right triangle
- wilson_chem90
- · Replies 13 ·
Finding final velocity given 2 charges
- Josh930
- · Replies 5 ·
Absorption Spectra: Determine Dilute/Thick Solutions
- benndamann33
- · Replies 3 ·
Chewing gum experiment suggestions
- Helloes
- · Replies 2 ·
How Do You Calculate Vector Components and Angles in 3D Space?
- Neophyte
- · Replies 3 ·
Potential Energy of a Collection of charges
- Josh930
- · Replies 1 ·
Equipotential lines in an experiment setup
- lsatwd
- · Replies 1 ·
Finding the Tension in a Suspended Block
- Warmacblu
- · Replies 17 ·
How to Calculate Velocity and Force in a Jump from Height?
- seanbugler
- · Replies 8 ·
How can I prove peroidic of state of simple harmonic
- Asal
- · Replies 2 ·
What is the total electric flux through a pyramid with a point charge inside?
- fenixbtc
- · Replies 4 ·
Electric field strenght of a loop given maximum flux
- fenixbtc
- · Replies 4 ·
Solving for $\vec{\upsilon}$ from Diagrams
- howt
- · Replies 2 ·
Biomechanics Static Forces sled on snowy surface
- muddyjch
- · Replies 1 ·
Masses and Pulley: Find Accelerations of A, B, C
- bigevil
- · Replies 2 ·
Frequency difference in two springs with different stiffness factors
- mhmil
- · Replies 1 ·
Charge of bead falling through an electric field
- fenixbtc
- · Replies 2 ·
How Do You Calculate When Two Accelerating Cars Meet?
- r_swayze
- · Replies 2 ·
What Speed is Needed to Reach the Airport on Time After Traffic Delay?
- darklich21
- · Replies 9 ·
How Do Two Divers' Speeds Compare When Hitting the Water from the Same Platform?
- darklich21
- · Replies 9 ·
Temperature's affect on frequency
- mhmil
- · Replies 6 ·
Calculating Time for Catching a Thrown Ball in a Hot Air Balloon
- darklich21
- · Replies 16 ·
Electric field from three point charges at 1.1 cm left of center
- jc269
- · Replies 2 ·
Finding equivalent inductance and capacitance in mixed circuits
- talaroue
- · Replies 1 ·
How Do You Calculate Initial Speed and Time Elapsed in a Collision Scenario?
- darklich21
- · Replies 10 ·
Positive or negative velocity and acceleration
- Leonhart
- · Replies 2 ·
Calculating Revolutions in Non-Uniform Circular Motion
- darko21
- · Replies 2 ·
Energy transfer in Franck-Hertz experiment collisions
- vorcil
- · Replies 1 ·
Solving a Helicopter Height Equation
- rokas
- · Replies 1 ·
Average force from a baseball striking a catcher's mitt
- seanbugler
- · Replies 1 ·
Bouncing ball average acceleration
- physicsquest
- · Replies 3 ·
What is the velocity and angle of a man walking on a moving ship?
- anna_chem
- · Replies 6 ·
How Long Does a Ball Thrown 60 Feet Up Take to Land?
- jewjew
- · Replies 1 ·
Automobile collision-speed passenger crashes against dashboard
- physicsquest
- · Replies 1 ·
Magnitude of average velocity and derive equation
- goldenroll
- · Replies 1 ·
What is the tangential acceleration of a rotating crankshaft?
- darko21
- · Replies 7 ·
Rotational Kinematics Problem Interpretation
- yougene
- · Replies 1 ·
Frictionless tension/pulley problem.
- CandyApples
- · Replies 4 ·
How Do You Calculate the Average Acceleration of a Tennis Ball from a Drop Test?
- demonelite123
- · Replies 3 ·
Calculate Horizontal Range of Projectile - Unit Vector Velocity
- George3
- · Replies 1 ·
I figured out the slope for a force vs mass graph but does a slope have units?
- Meganktn
- · Replies 2 ·