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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Potentials of the points in the electrical circuit
- Petrulis
- · Replies 7 ·
High speed train sounding horn - Doppler effect
- conniechiwa
- · Replies 3 ·
What is the speed of sound in air using the Young's Double Slit Experiment?
- jaded18
- · Replies 6 ·
A real life problem, just for fun
- catkin
- · Replies 1 ·
Standing wave on a guitar string
- ronny45
- · Replies 3 ·
Calculating the resultant force using vector
- SumDumKid
- · Replies 1 ·
Combined resistance of a cell and an ammeter
- fickle
- · Replies 1 ·
How Do You Find the Equation for Sine and Cosine from a Graph?
- Ronka
- · Replies 11 ·
Melting Ice: 200g Steel at 150°C on 0°C Ice
- Ry122
- · Replies 2 ·
How Are Net Forces Calculated at Different Points on a Ferris Wheel?
- pinkyjoshi65
- · Replies 7 ·
How Much Water Freezes at Equilibrium Temperature Tf=0?
- coconut88
- · Replies 1 ·
Calculating Muzzle Velocity of a Spring-Loaded Toy Gun
- MissKaylaPaige
- · Replies 6 ·
Surviving a Freefall: Calculating the Impulse on a Paratrooper Landing in Snow
- dominus96
- · Replies 8 ·
Finding the Resultant Force to Using Vector Components and Trigonometry
- navarro714
- · Replies 4 ·
Solving a Crane Jib Problem with Tension and Angles
- steven10137
- · Replies 10 ·
How to Calculate Tension in a Vertical Circle and Accelerating System
- LostShadow
- · Replies 10 ·
Calculating Acceleration of a Flywheel: Tangential, Radial, and Resultant
- bigtymer8700
- · Replies 13 ·
Solve Angular Velocity of Circular Platform with 73.3kg Student
- chaotixmonjuish
- · Replies 3 ·
How Is Energy Dissipated by Friction Calculated in Physics Problems?
- MissKaylaPaige
- · Replies 1 ·
Centripetal force and friction
- sheepy
- · Replies 15 ·
Impulse and average force of baseball
- amlovatos
- · Replies 1 ·
How Much Ice Melts When a Bullet Penetrates It?
- BuBbLeS01
- · Replies 1 ·
Projectile Motion: Finding Time and Maximum Height
- lilstar
- · Replies 13 ·
Understanding Forces in a System
- Menzies
- · Replies 4 ·
Is Point P in Young's Double Slit Experiment the Center of the Central Minimum?
- pardesi
- · Replies 5 ·
Gravitational Force Homework: Solving for Distance
- 2RIP
- · Replies 7 ·
How Does the Potential of a Coalesced Drop Compare to Its Original Drops?
- captain.joco
- · Replies 1 ·
Angular Speed of Electric Toothbrush Head: 795.49rad/s
- bigtymer8700
- · Replies 2 ·
During a solar eclipse calculate forces.etc
- lettertwelve
- · Replies 11 ·
How Do Atoms of Element Q Absorb or Emit Specific Photon Frequencies?
- steven10137
- · Replies 5 ·
What is the speed of the block after this displacement?
- meganw
- · Replies 2 ·
Relative Velocity: Al & Bob's Trip to Ted's Place
- pinkyjoshi65
- · Replies 2 ·
Work Done in Walking: Explained
- kaweezah
- · Replies 3 ·
Where is the fulcrum located in this simple torque problem?
- Joza
- · Replies 1 ·
How Is a Skier's Gravitational Potential Energy Affected by a Mountain Lift?
- rcmango
- · Replies 4 ·
Solving for Speed of Extreme Skier Descending Mountain
- rcmango
- · Replies 2 ·
Decay equations: Given A0 & At, find half-life, lambda and N0
- catkin
- · Replies 14 ·
Calculating Change in Gravitational PE for 70 kg Skier
- rcmango
- · Replies 5 ·
How Do You Determine the Tension in Cable ABD and the Reaction at Support C?
- mayeh
- · Replies 2 ·
How do I get a formula that finds the initial velocity with height in it?
- ken62310
- · Replies 3 ·
Why is Work Done When Walking Upstairs But Not Horizontally?
- kaweezah
- · Replies 4 ·
Determine the speed at which the water leaves the hole
- Sunsing
- · Replies 2 ·
Simple sound intensity difficulty
- Vanessa23
- · Replies 1 ·
Mechanical conservation of energy
- gamarrapaul
- · Replies 6 ·
Match Energy Concepts: Work, Joule, Potential & Kinetic Energy
- rhxoehwhfh
- · Replies 6 ·
Rotational Motion - Finding Linear Distance
- hana.e.kim
- · Replies 2 ·
Two balls falling and bouncing one off the other
- black_squirrel
- · Replies 22 ·
Centripetal force of a car on a curve
- sheepy
- · Replies 4 ·
Solving Angular Momentum Problems with Linear & Angular Acceleration
- staf9
- · Replies 1 ·
Torque/rotational motion question
- sagebum
- · Replies 2 ·
What Frequency Causes the Box to Slide on a Rotating Platform?
- pooface
- · Replies 1 ·
How Fast Does a Pulse Travel Along a Steel Wire?
- momogiri
- · Replies 2 ·
What is the angular speed of a grindstone spinning at 8.3 rev/s?
- ftth
- · Replies 3 ·
Calculating Sailboat Acceleration: Solving a Tricky Physics Question
- Cowtipper
- · Replies 3 ·
Find the magnitudes of the impulse on him from the water
- physicsbhelp
- · Replies 8 ·
Study Tips for College Physics 101
- jcksn34
- · Replies 6 ·
Find Tension in String: Friction & Pulley
- lostfan176
- · Replies 7 ·
Finding friction from tangential acceleration
- pcandrepair
- · Replies 1 ·
Series circuit lab problem: voltage drop?
- mikebc
- · Replies 9 ·
My teacher assigns too much work
- john84
- · Replies 3 ·
How Does the Tension Equation Differ with Inclined Planes and Multiple Masses?
- ThatGermanDude
- · Replies 5 ·
How Is the Angular Momentum of a Clock's Second Hand Calculated?
- Heat
- · Replies 2 ·
What is the torque on the tree from the truck?
- throwerx
- · Replies 2 ·
0-60mph back down to 0 = X feet
- sapple
- · Replies 1 ·
Work/Force question, can anyone explain?
- Predator
- · Replies 2 ·
Someone - Ramp Launch And Friction
- kraaaaamos
- · Replies 1 ·
Circuit with 2 batteries is confusing me
- mujadeo
- · Replies 5 ·
Projectile with friction on an inclined plane
- kraaaaamos
- · Replies 2 ·
Force and potential energy of a mail bag
- physstudent1
- · Replies 1 ·
Calculating Potential Difference Between Points A and B
- mujadeo
- · Replies 1 ·
Estimating Peak Impact Force: A Formula and Example Calculation for Runners
- clipperdude21
- · Replies 2 ·
Stopping distance from 60 mph with 112 ft deceleration
- sapple
- · Replies 5 ·
Calorimetry, calculating for mass
- yoshi-chan7
- · Replies 5 ·
Calculate Avg. Water Velocity in Pipe from Well
- Izmad
- · Replies 7 ·
Calculating Sam's Jet Ski Coasting Distance and Top Speed
- kraaaaamos
- · Replies 3 ·
How fast is a falling object going without riction
- get_rekd
- · Replies 3 ·
How Do You Calculate the Initial Velocity of a Projectile?
- TWM
- · Replies 1 ·
Solve problem related to Force and velocity
- rainingurl
- · Replies 2 ·
Multiple Choice- Angular Velocity
- terrib
- · Replies 5 ·
Please explain equipotential surfaces/ contour maps
- mujadeo
- · Replies 3 ·
Calculating Time to Apex for Vertically Launched Objects
- get_rekd
- · Replies 10 ·
Moment of inertia problem- kleppner #6.18
- AmaniKaleo
- · Replies 1 ·
How Can I Solve These Momentum Problems for My Physics Test Tomorrow?
- random26
- · Replies 2 ·
Last 3 problems on Rotational Dynamics
- chavic
- · Replies 2 ·
How to Prove F=ma Using Kick Dis
- sabre13
- · Replies 7 ·
Calculating Acceleration of a Space Shuttle in Zero-Gravity Conditions
- get_rekd
- · Replies 22 ·
How Do You Find the Final Speed After a Collision on a Frictionless Ramp?
- physicsperson
- · Replies 3 ·
Angular momentum multiparticle system
- solrac214
- · Replies 2 ·
How much is it lengthened from its untensioned length of 30.2 cm?
- mathcrzy
- · Replies 5 ·
How much fuel is needed to reach a specific velocity in rocket propulsion?
- car202
- · Replies 4 ·
Angular Momentum and uniform flat disk of mass Problem
- Destrio
- · Replies 7 ·
What is the stress within the column?
- mathcrzy
- · Replies 7 ·
How Do You Calculate the Mass of a Star Based on Planetary Data?
- tibessiba
- · Replies 11 ·
Calculating Kinetic Energy for a Sled and Rider on a Hill
- JohnJay
- · Replies 1 ·
How Can I Maximize the Distance of My Two-Liter Bottle Projectile Launcher?
- Amadeus
- · Replies 1 ·
Total force exerted on the can by the air pressure?
- Sucks@Physics
- · Replies 8 ·
Calculating Mass on a Frictionless Surface
- Hawk_RSA
- · Replies 7 ·
Shear stress, what is a flat tie bar ?
- scotthands
- · Replies 4 ·
Solving Kinematics Problems: Distance Traveled Before Applying Brakes
- nblu
- · Replies 3 ·
Mechanical energy of a pendulum- I just can't get it
- BlueSkyy
- · Replies 4 ·