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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Velocity in uniform circular motion
- waldvocm
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Inclined Pulley system, little information given.
- alexgmcm
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Find Displacement involving Coeff. Kin. Fr. & init. Velocity
- lynk
- · Replies 4 ·
Physics Homework - Coefficent of friction.
- Huskies101
- · Replies 4 ·
How much ahead the front axle does the wheel jet the water that it pick
- mmoadi
- · Replies 4 ·
What Went Wrong with Calculating Impulse in Impulse-Momentum Theory?
- IAmSparticus
- · Replies 7 ·
The conversion of electrical energy to heat energy.
- Sirsh
- · Replies 7 ·
What is the Solution for a Particle Moving Under a Repulsive Central Force?
- gcfve
- · Replies 5 ·
Mechanical properties of solids questions
- Mandavi
- · Replies 1 ·
Conservation of angular momentum
- Borek
- · Replies 8 ·
What happens to the center of mass after a collision?
- exparrot
- · Replies 1 ·
Work energy theorem involving a pulley
- Pogorz
- · Replies 9 ·
How Does Gauss's Law Apply to Non-Spherical Geometries?
- q3solid
- · Replies 5 ·
Calculating Position in Simple Harmonic Motion with Given Amplitude and Velocity
- vipertongn
- · Replies 1 ·
How do basketball players jump straight up into the air?
- sweetheart901
- · Replies 1 ·
Energy Transfer in a Water and Aluminum Pan System
- rkjul
- · Replies 3 ·
Subtracting Vectors: How to Find Magnitude of A-B
- nrdiamon
- · Replies 1 ·
Planar Kinematics of Rigid Bodies - Relative Motion
- aolse9
- · Replies 1 ·
Semiconductors and light effects
- omri3012
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What is the spring force constant k for a ball dropped onto a spring?
- irbombardmnt
- · Replies 2 ·
How Does a Leaking Cubical Pendulum Affect Its Period?
- kashiark
- · Replies 1 ·
Static friction on inclined surface
- drkidd22
- · Replies 3 ·
Ball in the Air for 2.4s: Acceleration, Juggler's Speed & Time Elapsed
- uicha
- · Replies 1 ·
Projectiles, 2D Motion, Bullet falling
- copitlory8
- · Replies 3 ·
Calculating Force on a Coil near a Straight Wire: Exploring Electromagnetism
- fball558
- · Replies 12 ·
Force on Wire in Magnetic Field w/ 2 Ends & Half Circle
- Dell
- · Replies 20 ·
Stationary circuit: can current pass THROUGH a battery?
- libelec
- · Replies 9 ·
What is Lenz's Law and how does it relate to magnetics?
- Schoomy
- · Replies 3 ·
Vectors, Forces Accelerating a Train
- blackcannon
- · Replies 1 ·
Calculating Black Hole Mass Gain from X-ray Emissions of Binary Systems
- ndoc
- · Replies 3 ·
Newton's Third law problem Astronaut and Force
- sweetheart901
- · Replies 2 ·
Conservation of Kinetic Energy Proof
- Davey Boy
- · Replies 6 ·
Three strings and a weight, need tensions in strings
- thedarkone80
- · Replies 1 ·
Bullet fired from a moving train.
- Pinkk
- · Replies 8 ·
Minimum distance from a repulsive central force
- gcfve
- · Replies 4 ·
How Fast Are Rockets Moving at Moon's Orbit?
- darklich21
- · Replies 3 ·
What Determines the Terminal Speed of a Skier?
- White_Noise
- · Replies 7 ·
What is the speed of the rock physics
- melodrameric
- · Replies 7 ·
Maximum distance in orbit from center of a planet
- gcfve
- · Replies 2 ·
How Do You Calculate Maximum Spring Compression in an Inelastic Collision?
- darklich21
- · Replies 1 ·
Finding Kinetic Energy Loss in Equal Mass Collisions
- dorian_stokes
- · Replies 1 ·
Help with total work done by friction problem
- debrickshaw
- · Replies 7 ·
Rope tension on a mountain climber
- Firestrider
- · Replies 1 ·
Newbie needs muchos help (thanks)
- mk1tt16v
- · Replies 2 ·
A Banked Turn With Friction- min and max velocity
- mmoadi
- · Replies 2 ·
How much work and how much force do we use in pushing a box
- mmoadi
- · Replies 2 ·
Kicking a Football: Vertical Distance & Velocity
- waldvocm
- · Replies 3 ·
Calculating Magnetic Field Strength of Magnetron
- Wizardofwaz
- · Replies 16 ·
How Do You Calculate the Total Charge in a Solenoid with Time-varying EMF?
- latitude
- · Replies 1 ·
Newtons cooling law not making sense
- pezgoon
- · Replies 10 ·
Projectile motion question totally stuck
- emyt
- · Replies 60 ·
Calculating Force of Bat on Ball: Physics Homework Solution
- futureteacher
- · Replies 1 ·
What is the force exerted by a football on a kicker's foot?
- euphtone06
- · Replies 10 ·
Comparing Speeds of Golf Ball and Ping Pong Ball with Equal Kinetic Energy
- fattydq
- · Replies 2 ·
Force exerted by water on diver (2nd law of Motion)
- bydesign
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Calculating Work Done by Horse in 9.9 minutes
- Zhalfirin88
- · Replies 14 ·
Thermodynamics and Steam Engine
- fallen186
- · Replies 2 ·
Using physics to prove my innocence
- Enidox
- · Replies 1 ·
How Much Initial Kinetic Energy is Rotational in a Rolling Sphere?
- G-reg
- · Replies 1 ·
Rolling as Translation and Rotation Combined
- G-reg
- · Replies 5 ·
Using a Geiger–Müller tube to prove inverse square law
- beatlemaniac
- · Replies 1 ·
Pendulum Impact Force Calculation
- mh5594
- · Replies 1 ·
Pulley Mass Calculation: Atwood's Machine
- becca89
- · Replies 1 ·
Three vectors A, B, and C add together to yield zero
- crono_
- · Replies 2 ·
Average speed of the gasoline as it leaves the nozzle?
- Punkyc7
- · Replies 10 ·
Which spot on earth would have the fewest # of satellite's visible?
- bigmac
- · Replies 20 ·
VERY DIFFICULT 2-D Motion Problems
- Power of One
- · Replies 5 ·
Help With Graphs Homework: Units of Slope, Slope Value, & Percent Error
- kellenm
- · Replies 4 ·
Finding Tension when Mass Accelerates
- allielove13
- · Replies 3 ·
Magnetism Question Can't figure it out
- harrism1
- · Replies 3 ·
Solving for v, we getv=\sqrt{\frac{2}{m}\int_{x_1} ^{x_2} F dx}
- ssm11s
- · Replies 1 ·
How fast is the rod moving after it has traveled 8.00 m down the rails?
- sweetipie2216
- · Replies 3 ·
Solving Vector Problems with Law of Sines and Pythagorean Theorem
- coolkid26
- · Replies 1 ·
Calculating Average Force and Mass: Weightlifting and Shelf-Moving Examples
- defetey
- · Replies 1 ·
me on this prolem ( Magnetic Field).
- vu95112
- · Replies 5 ·
Momentum, conservation, collision
- Jimmy Tango
- · Replies 1 ·
Ramp and Pulley: Solve for Acceleration, Tension & Projection
- SlainTemplar
- · Replies 1 ·
Metal Wire in Equilibrium & Steady-State
- feedmeister
- · Replies 4 ·
Where is the Velocity of a Particle Moving Along the x-axis a Maximum?
- interxavier
- · Replies 1 ·
Tension of string between two blocks
- stosw
- · Replies 1 ·
Finding Acceleration of Gravity of Fictional Planet
- to819
- · Replies 2 ·
Magnitude of vertical force. What am I doing wrong? x_X
- lolzwhut?
- · Replies 2 ·
Solving a Physics Problem: Determining Seal's Slide Distance
- einsteinette
- · Replies 2 ·
Centripetal Force HW: Determine Tension & Speed of Chair
- Punkyc7
- · Replies 2 ·
Photoelectric Effect and electrons
- Jules18
- · Replies 4 ·
What were the velocity and direction of the glass as it fell?
- waldvocm
- · Replies 4 ·
Calculate Magnetic Field from Current on a Loop of Wire
- fball558
- · Replies 1 ·
Phase change Melting ice with hot tea.
- lwaiyipl
- · Replies 6 ·
Finding block flight distance (work/energy/projectile motion)
- Gotejjeken
- · Replies 5 ·
Banked Curves using Radius and speed
- SlainTemplar
- · Replies 6 ·
Total tension in wire due to bird
- Subdot
- · Replies 4 ·
How High Does a Projectile Reach When Fired Upwards?
- Kev1n
- · Replies 1 ·
Projectile Motion assignment - Building a projectile launcher
- Hans
- · Replies 3 ·
How High Does the Crate Reach on the Inclined Plane?
- Leesh09
- · Replies 1 ·
Is This the Correct Solution for Kirchhoff's Loop Problem?
- shrabastee
- · Replies 2 ·
Solving Tension in 3 Cords: Find T_a in Terms of W
- dbakg00
- · Replies 5 ·
How to Solve a Time-Dependent Force Problem for a Gliding Puck
- Leesh09
- · Replies 3 ·
What is the Velocity and Distance of a Block on an Incline?
- xjasonx1
- · Replies 2 ·
Understanding the Relationship Between Power and Motion in Physics
- deathnote93
- · Replies 2 ·
Calculate Max Height & Distance of Arrow Shot at 30°
- Trizz
- · Replies 2 ·