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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Checking 7 freely falling body problems
- meteoguy04
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Finding block volume from weights in water and alcohol
- ZeroXD
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How Does Kinetic Friction Affect Motion in a Pulley System?
- lizette
- · Replies 2 ·
What is the Spring Constant and Angular Frequency of a Car's Suspension?
- RIT_Rich
- · Replies 4 ·
How Far is a Loudspeaker from Two Observers Based on Sound Levels?
- Lipd
- · Replies 3 ·
What Causes Increased Horizontal Velocity After a Perfect Bounce?
- sonya
- · Replies 3 ·
Overtaking car at 60 km/hr alongside car at 40 km/hr, 100 m apart
- Nanabit
- · Replies 2 ·
Solving Physics Mechanics Problem: Snowball Off Barn Roof
- Tony Zalles
- · Replies 2 ·
Can Different Moving Speeds Have Identical Acceleration?
- physicszman
- · Replies 6 ·
Why Does the Ball Appear to Rise Vertically to the TA?
- Juntao
- · Replies 2 ·
IB Math Methods- Problems with Problems
- Astronomer107
- · Replies 2 ·
Have You Ever Wondered Why Sunsets are Red?
- Chiara
- · Replies 2 ·
Maximum force to keep two blocks moving together without slipping
- lizette
- · Replies 2 ·
What could be causing the discrepancy in my circular motion calculations?
- PianoMan
- · Replies 2 ·
Force exerted by floor on compressed tennis ball
- J.T.
- · Replies 6 ·
Conservation of Momentum and Energy in an explosion
- mrbling
- · Replies 2 ·
Why Does a Car Speed Up on a Sloped Driveway Despite Friction?
- imaqueen
- · Replies 5 ·
What is the Total Force Exerted on Block 3 by Block 2?
- Juntao
- · Replies 2 ·
Uniform Circular Motion-Centripetal Force
- PianoMan
- · Replies 2 ·
Solve for wInertia Confusion: Calculating Speed of a Merry-Go-Round
- tucky
- · Replies 4 ·
Rotational motion of a washing machine
- tucky
- · Replies 2 ·
How much paint is needed for a larger, signal-reflecting weather balloon?
- mary d
- · Replies 2 ·
Speed of electron after collision with Photon
- dcl
- · Replies 2 ·
How to Graph y = 9/x² Without a Calculator?
- Integral0
- · Replies 2 ·
How Much Force is Needed to Move a Box with a Rope at an Angle?
- missrikku
- · Replies 2 ·
Pogo stick energy and spring-mass incline friction problems
- Nanabit
- · Replies 6 ·
Calculating Mass of Equal-Mass Binary Star System
- liljediboi
- · Replies 6 ·
Calculate the velocity vector as a function of time
- Tony Zalles
- · Replies 2 ·
How Accurate Are These Chemistry Calculation Methods?
- ConfusedStudent
- · Replies 2 ·
Solving for an Unknown Mass Using Hooke's Law and Simple Materials
- daodude1987
- · Replies 3 ·
Equilibrium temperature as function of latitude
- StephenPrivitera
- · Replies 2 ·
A race car traveling at +44 m/s
- Integral0
- · Replies 2 ·
How do Tension Forces and Pulleys Work?
- lurch0038
- · Replies 13 ·
Conservative and nonconservative potential energy
- Nanabit
- · Replies 5 ·
Tension Strongman problem from Physics
- havechanged
- · Replies 2 ·
When water waves travel from a deep region
- Hyperreality
- · Replies 2 ·
How Long Does It Take a Bullet to Stop Inside a Tree?
- Nanabit
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What is the charging current for a 120 ampere-hour storage battery?
- da-outcast
- · Replies 5 ·
Banked curve, car, friction problem
- groundknifer
- · Replies 2 ·
How Far Apart Will the Cheetah and Antelope Be After 17 Seconds?
- Skyblitz
- · Replies 5 ·
Water shooting from hole in tank: optimizing horizontal distance
- MisterNi
- · Replies 3 ·
Finding centripetal acceleration for stone whirled on string before landing 12 m away
- Rockdog
- · Replies 10 ·
Solving Two Concurrent Vectors: Find G's Angle
- ccb056
- · Replies 6 ·
Golf ball projectile motion and particle on inclined plane
- mcintyre_ie
- · Replies 3 ·
Find two unit vectors that are parallel to the xy plane
- PiRsq
- · Replies 2 ·
What Minimum Speed Must an Arrow Have to Pass Through a Spinning Wheel?
- Moxin
- · Replies 2 ·
2 simple Physics q's driving me nuts
- kangta
- · Replies 4 ·
Swimmer in river relative motion crap
- rdn98
- · Replies 3 ·
What's the Time for One Complete Revolution on a Hanging Swing Ride?
- robdawg
- · Replies 3 ·
Horse acceleration components and 2D kinematics errors
- Mesmer17
- · Replies 2 ·
Does the following matrix have an inverse?
- frankR
- · Replies 3 ·
Collision Problem using Conservation of Momentum and Energy
- Moxin
- · Replies 4 ·
Resultant of two forces on a 3000 kg car at angles
- caity232
- · Replies 4 ·
Does the Hockey Puck Reach the Hole on an Inclined Ramp?
- evelynn33
- · Replies 4 ·
Static Friction: Finding F_min for Box on Board
- Spectre32
- · Replies 2 ·
Proof Using Def. of Groups and Def. of Subgroups
- wubie
- · Replies 3 ·
Centripetal acceleration formulas and examples
- nychic3000
- · Replies 2 ·
Proving abelian property from (xy)² = x²y² and g² = u
- wubie
- · Replies 4 ·
P-V diagram for ideal gas with isobaric and isometric processes
- zaf
- · Replies 2 ·
What are the physics problems involving velocity and acceleration?
- meteoguy04
- · Replies 4 ·
How do you calculate mass yield of a solution?
- Cod
- · Replies 2 ·
Understanding Groups in Algebra: A Question of Closure and Inverses
- wubie
- · Replies 3 ·
Solving Incline Forces: Acceleration, Tension, and Speed Calculations
- Valerie
- · Replies 2 ·
Resultant acceleration of a 40kg object pulled by two perpendicular ropes
- quarkboy
- · Replies 4 ·
Initial speed of baseball thrown at 35° from 2.0 m height landing in 3 s
- confused
- · Replies 2 ·
Force and Newton's laws (airbag)
- missrikku
- · Replies 2 ·
What are the top US universities for studying physics?
- < Ali >
- · Replies 6 ·
Two pulley system with masses m1, m2, m3 accelerations
- StephenPrivitera
- · Replies 14 ·
Easy Vertical Motion Question
- Inquiring_Mike
- · Replies 4 ·
Tension, incline, friction coefficients and towing force problems
- Nanabit
- · Replies 4 ·
What is the energy lost due to friction?
- tristan_fc
- · Replies 2 ·
Temp diff in Greenland and Iceland
- photon
- · Replies 3 ·
Finding the fourth leg of a sailboat race course using vector components
- Juntao
- · Replies 2 ·
The problem about tension forces
- barbieprincess87
- · Replies 15 ·
Uniform circular motion - airplane
- missrikku
- · Replies 3 ·
Why Does Height Affect Calculations in a Block's Kinetic Energy Problem?
- Physicsit
- · Replies 2 ·
Block sliding down incline and compressing spring, finding compression distance
- Nanabit
- · Replies 6 ·
Poisson stats: signal to noise
- StephenPrivitera
- · Replies 3 ·
Why does the pendulum angle differ between inertial and accelerating reference frames?
- StephenPrivitera
- · Replies 2 ·
How Far Does Bob Plunge and What is the Maximum Force on the Bungee Cord?
- Snikt
- · Replies 2 ·
Finding velocity in circular motion with angled force
- NINHARDCOREFAN
- · Replies 2 ·
Help with Acc Linear Motion: Part 1 & 2, Part B: Prove u > 9.8
- mcintyre_ie
- · Replies 3 ·
Question regarding tension and friction
- tristan_fc
- · Replies 3 ·
How is Capacitance, Resistance and Time to fully charge related?
- Sociopath^e
- · Replies 2 ·
Finding net force and acceleration from force components
- NINHARDCOREFAN
- · Replies 3 ·
What is the acceleration of a box on a 20 degree inclined plane?
- fish
- · Replies 2 ·
Converting velocity and acceleration graphs to force graphs
- Spectre32
- · Replies 3 ·
If a rock is dropped off of a sea cliff
- kbrowne29
- · Replies 2 ·
Why Does the Ball Thrown Upward Return to the Man in 2 Seconds?
- rdn98
- · Replies 3 ·
Age puzzle with two conditions about John and Julia
- Jeebus
- · Replies 3 ·
Finding the Inductance of a coil
- discoverer02
- · Replies 2 ·
Help with geometry questions
- rahul_rudani
- · Replies 2 ·
How High Was the Girl When She Released the Rope?
- Mesmer17
- · Replies 2 ·
Max Velocity on Elevated Curve: Solving for Mu_s
- Spectre32
- · Replies 3 ·
Why Does the Book Say the Final Direction is SW When Moving From North to West?
- Kinto
- · Replies 9 ·
Determine the acceleration of rope hoist
- gameguru
- · Replies 5 ·
Solving a Force Problem: Finding the Angle of a Hanging Object
- Flaming Toilet
- · Replies 3 ·
Finding Initial Velocity of a Ball Using Time and Distance
- thegreatone09
- · Replies 3 ·
Integral of 1/(√x(√x+1))
- Khan
- · Replies 4 ·