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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How Far Will M1 Travel in 0.633 Seconds?
- jap90
- · Replies 1 ·
Physics-Young's Double Slit Problem
- frankene
- · Replies 2 ·
How to Calculate Work at a 30 Degree Angle on a Ski Slope?
- bearhug
- · Replies 3 ·
Reaction force on a book resting on top of a table.
- ysk1
- · Replies 1 ·
How Fast Must a Basketball Player Jump to Reach 83.7 cm?
- meudiolava
- · Replies 7 ·
Vertical pendulum, mass of object
- lizzyb
- · Replies 1 ·
How Does Adding Weight Affect the Distance a Cart Moves?
- BunDa4Th
- · Replies 3 ·
Calculate Velocity of Joint Closing w/ Trig
- Ronnin
- · Replies 3 ·
How Fast is Spaceship A Traveling Relative to Spaceship B?
- Gott_ist_tot
- · Replies 2 ·
Free fall in vacuum: does gravity apply in space?
- ksinclair13
- · Replies 9 ·
How Is Acceleration Calculated for a Hollow Cylinder Lawn Roller?
- John O' Meara
- · Replies 1 ·
Solving for Fp: Bucket and Crank Problem with Unknown Forces
- cheesy
- · Replies 3 ·
Elastic collision find max height
- Aubiefan
- · Replies 3 ·
Total resistance of a cube with six ohm edges
- alnywk
- · Replies 2 ·
Calculating Electric Fields and Acceleration
- StudentofPhysics
- · Replies 15 ·
How Much Sand Triggers Motion in a Friction-Influenced System?
- needhelp83
- · Replies 1 ·
Special relativity spaceships time question
- thenewbosco
- · Replies 1 ·
Solve Momentum Problem: Find Value of 'v
- DeathKnight
- · Replies 3 ·
Newton's laws conceptual questions
- vu10758
- · Replies 7 ·
Reflection through x2-axis followed by π/2 rotation
- Perrry
- · Replies 5 ·
What is the relationship between the period and length of a pendulum?
- SigmaCrisis
- · Replies 2 ·
Finding elevator acceleration from scale readings
- dext
- · Replies 3 ·
Propagation of uncertainty calculations
- leright
- · Replies 5 ·
Spring compression needed for target speed across rough patch
- UCrazyBeautifulU
- · Replies 6 ·
Seemingly incomprehensible Wave motion
- junior_J
- · Replies 10 ·
Determining velocity of frame in spacetime
- b2386
- · Replies 1 ·
Finding a vector perpendicular to A=7i+3j-6k in the yz-plane
- Aleksandar
- · Replies 3 ·
Finding spring constant from collision with maximum compression
- UCrazyBeautifulU
- · Replies 13 ·
Identifying the Forces Acting on a Box: A, B, C, D, E?
- ysk1
- · Replies 4 ·
What is the minimum speed required for a man to catch a moving bus?
- SA32
- · Replies 2 ·
Find the Central Force on an Electron in a Hydrogen Atom
- directdelta
- · Replies 2 ·
Tension in two cords supporting a hanging lantern at 30 and 45 degrees
- K-Lamb10
- · Replies 7 ·
How Is Tension Calculated in an Atwood Machine?
- RufusTFirefly
- · Replies 1 ·
How long can a Snickers bar power the human brain?
- UCrazyBeautifulU
- · Replies 3 ·
Relativity: disagreement between two results
- P3X-018
- · Replies 2 ·
Determining Flow Type: Turbulent or Laminar?
- semc
- · Replies 2 ·
Calculating Plane Height When Stone is Thrown at It
- siddharthmishra19
- · Replies 4 ·
Proof of dU=TdS-PdV: dw=PdV Not dw=PdV+vdP
- asdf1
- · Replies 3 ·
Gibbs Free Energy: Why Must It Be >0 for Reaction?
- asdf1
- · Replies 2 ·
Thermodynamics: Cp Variation with Temperature Limit
- asdf1
- · Replies 2 ·
Understanding Mgh = 1/2mv^2: Conditions for Equal and Unequal Energy on Slopes
- ZGMF - X20A
- · Replies 4 ·
When does a spinning 5kg mass break its string?
- fenixxishot
- · Replies 1 ·
How to Calculate the Range of a Projectile on a Sloped Surface?
- Newton's Protege
- · Replies 1 ·
Solving a Circular Motion Problem: Is Something Wrong?
- RoyalewithCh33s3
- · Replies 1 ·
2-D kinematics/Forces (weight up an incline)
- ubbaken
- · Replies 8 ·
12 kg block sliding down 35° incline compressing spring
- chevyboy86
- · Replies 1 ·
How Fast Was the 6000 kg Freight Car Traveling Before Being Stopped by Springs?
- chevyboy86
- · Replies 4 ·
Calculating Jet Drag and Maximum Speed in Level Flight
- AussieDave
- · Replies 6 ·
Calculating Solenoid Turns: Magnetic Field, Current, and Dimensions
- Alt+F4
- · Replies 3 ·
Solve the Physics 101 Problem: Golf Cart and Walking Speeds
- spoonthrower
- · Replies 3 ·
If the buckets are at rest what is the tension in each cord?
- needhelp83
- · Replies 4 ·
Are My Answers on Electromagnetism Correct?
- AlbertEinstein
- · Replies 1 ·
Water Flow from 17.0mm Faucet: When Does it Narrow to 10mm?
- jkb
- · Replies 1 ·
Apparent Weight of 59.3kg Student in Elevator Forces
- kevykevy
- · Replies 8 ·
How Does Projectile Angle Affect Flight Time on an Inclined Plane?
- cscott
- · Replies 1 ·
Acceleration towards a the centre of a circular motion
- Oerg
- · Replies 3 ·
Calculating Force of Link 2 on Link 1 in Chain of 5 Links
- emilinus
- · Replies 1 ·
Adding momentum vectors that are parallel but not collinear
- allok
- · Replies 3 ·
Calculating Coyote's Canyon Landing Point with Acme Power Roller Skates
- parwana
- · Replies 5 ·
How High Can a Salmon Jump Using Its Maximum Speed?
- Touchme
- · Replies 8 ·
Change in Kinetic energy and final speed
- bearhug
- · Replies 3 ·
Blocks and Spring Mechanics Question
- lando45
- · Replies 2 ·
Centripetal Acceleration of astronaut
- Sanjay101
- · Replies 3 ·
Solve the Golf Cart Physics Problem & Find Total Trip Time | Physics 101 HW Help
- spoonthrower
- · Replies 1 ·
Graphing Velocity vs Time for a Falling Rope
- knightpraetor
- · Replies 3 ·
How do I apply basic physics principles to solve problems in sound?
- GabrielStigmatic
- · Replies 6 ·
Newtons Law of Motion/Free Falling objct
- baqi
- · Replies 2 ·
Check my answers on forces and acceleration problems
- sythetickitty
- · Replies 9 ·
Critical static friction coefficient for pushing a box up a ramp
- dudeman
- · Replies 1 ·
Gravitational Potential Energy of a swing
- bearhug
- · Replies 5 ·
How Far Will a Box Slide on a Frictional Surface After Being Pushed?
- Arbitrary
- · Replies 1 ·
Calculating Acceleration and Velocity of a Saturn V Rocket
- needhelp83
- · Replies 2 ·
How to Calculate the Resultant of Two Vectors in a River Crossing Situation
- akxt
- · Replies 4 ·
How Does Electric Potential Change with Distance from a Charged Sheet?
- adp5025
- · Replies 1 ·
Egg Launch: Solving a Physics Problem
- OVB
- · Replies 1 ·
What is a theoretical line in projectile motion experiments?
- Touchme
- · Replies 10 ·
What is the magnitude of the contact force between the boxes?
- youxcrushxme
- · Replies 4 ·
Average Forces and Newtons Laws
- mmiller39
- · Replies 3 ·
How Long Must Zorch Push to Extend Earth's Rotation to 29 Hours?
- blimkie
- · Replies 1 ·
Scale reading as elevator accelerates, decelerates and stops
- hatingphysics
- · Replies 1 ·
Calculating Work and Spring Stretch in Hooke's Law
- bearhug
- · Replies 2 ·
How Is Net Work Calculated When Pulling a Boat?
- mikefitz
- · Replies 1 ·
Correct use of is proportional to symbol (alpha)
- Checkfate
- · Replies 5 ·
Magnitude and angle of sum of three vectors
- mixedtape_15
- · Replies 3 ·
PERE'S LAW, ELECTRIC FIELDS, AND RESISTANCE CALCULATIONS IN A MULTI-SECTION ROD
- tigert2004
- · Replies 3 ·
How do Newton's Laws work in these situations?
- vu10758
- · Replies 5 ·
How to Calculate Work and Power in a Physics Problem Involving Velocity and Time
- Cheapo2004
- · Replies 5 ·
Converting 477 rev/min to radians per second
- brncsfns5621
- · Replies 1 ·
Resultant linear acceleration on a decelerating flywheel at a point 0.5 s before rest
- paul9619
- · Replies 1 ·
Frictionless Bank: Normal Force vs. Weight
- Rawr
- · Replies 3 ·
At what angle must you point the jet ski if your velocity relative
- i2hckynut18
- · Replies 6 ·
Determining angle and ratio in 2d motion
- parwana
- · Replies 11 ·
Vector 2D Problem: Solve for Horizontal Range & Time in Motion
- arizona_cards_11
- · Replies 2 ·
Jet velocity in wind and boat crossing a river
- wtf_albino
- · Replies 5 ·
What is the tension in the string for a frictionless pulley-incline system?
- physics1234
- · Replies 7 ·
What Is the Initial Velocity of a Body Thrown Up on a Slope?
- siddharthmishra19
- · Replies 3 ·
How Can a Pelican's Dropped Fish Illustrate Physics Principles?
- Gyros222
- · Replies 7 ·
Understanding Standing Wave Sign Conventions
- AmandaWoohoo
- · Replies 1 ·
How Does a Positive Charge Affect Magnetic Field Components?
- Alt+F4
- · Replies 15 ·
Finding velocity of a rolling ball leaving a 1m ramp in 2.04s
- phantomcow2
- · Replies 13 ·