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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Ice skater angular velocity after tucking arms
- timtng
- · Replies 2 ·
Question For Physics Take Home Quiz that I just can't get
- chuckles_345
- · Replies 2 ·
Solving Exploding Spring: Find Car Speeds
- Juntao
- · Replies 6 ·
Calculating Force Needed to Support an Object with Hydraulic Press
- ShakeWell
- · Replies 4 ·
Where is the center of gravity if 58% of weight is on front wheels?
- timtng
- · Replies 2 ·
How Do Two Astronauts Separate in Space After Pushing Each Other Apart?
- cathliccat
- · Replies 2 ·
Rotating Wheel SHM: Piston Distance Calculation
- shan
- · Replies 3 ·
How Do Forces Determine Tension and Compression in Roof Trusses?
- exequor
- · Replies 2 ·
Force, mass and acceleration problems with Newton's laws
- physicszman
- · Replies 2 ·
Can You Explain Conservation of Momentum?
- porkok
- · Replies 2 ·
Q: Maximum weight for a suction cup hook on a glass door?
- tucky
- · Replies 5 ·
Does viscosity affect the speed of waves in liquids?
- Jacob Aron
- · Replies 2 ·
Lifting force from airfoil with 20% longer top surface
- celtchic
- · Replies 1 ·
How Can I Build a Non-Traditional Propulsion Car for a Physics Project?
- starspin213
- · Replies 2 ·
How Fast Does the Heavier Cart Move After Spring Release?
- marshall4
- · Replies 2 ·
Does the observer measure higher velocity if moving toward the source?
- andytran
- · Replies 2 ·
Finding Inflection Points (Applied Calc Question)
- Sam
- · Replies 2 ·
Relative Velocity while swimming
- mcintyre_ie
- · Replies 2 ·
Where is the center of gravity of this system?
- timtng
- · Replies 7 ·
What Went Wrong with my Kinetic Energy Problem?
- PiRsq
- · Replies 2 ·
How Much Torque Is Needed for a 2.0-kg Ball's Angular Acceleration?
- Kroberts
- · Replies 2 ·
Can Physics Solve These Real-World Problems?
- Nanabit
- · Replies 2 ·
Ballistic Pedulum - Finding Kinetic Energy Lost
- ScoutFCM
- · Replies 2 ·
How Do You Calculate Revolutions in Rotational Kinematics?
- djsharpsound
- · Replies 2 ·
Jet Transport Weight Distribution and Normal Force Calculation
- PianoMan
- · Replies 2 ·
Moment of Inertia for a Solid Sphere
- Norman
- · Replies 2 ·
How long does it take for a stone thrown from a building to pass a window?
- coglon
- · Replies 7 ·
Solve the Bungee Physics Problem: Net Force and Height Calculation"
- tandoorichicken
- · Replies 5 ·
Solve Parallax Equation: Find Distance to Star in km & ly
- radius
- · Replies 3 ·
What is the student's speed at the bottom of the inclined plane?
- ConfusedStudent
- · Replies 7 ·
What is the distance between two particles in motion in a vacuum?
- joc
- · Replies 21 ·
How to solve momentum and collisions problems?
- ScoutFCM
- · Replies 4 ·
Police officer catching speeding car with constant acceleration
- beginner
- · Replies 4 ·
Calculating Bullet Velocity in Inelastic Collision
- wessleym
- · Replies 2 ·
Calculate the acceleration of the cyclist
- bonfire89
- · Replies 2 ·
Why use a fuse when earthed metal prevents danger to handlers
- Shyam
- · Replies 5 ·
Physics- falling objects, parabola shape
- havechanged
- · Replies 2 ·
How Do I Solve These Angular Speed Physics Problems?
- Nanabit
- · Replies 2 ·
How Do You Calculate Angular Acceleration with Only Velocity and Radius?
- Nanabit
- · Replies 2 ·
Calculate the horizontal speed of the box as it falls
- paigegail
- · Replies 16 ·
How Do You Calculate the Lifting Force on a Block?
- kaotic
- · Replies 2 ·
What Does the Picture with Four E's and Arrows Mean on a Science Blackboard?
- vadlamudit
- · Replies 1 ·
What Are the Best Botany Career Opportunities in Michigan?
- Mentat
- · Replies 4 ·
Physics Puzzler: Solving a Grade 12 Cliff Pushing Problem
- paigegail
- · Replies 1 ·
Transistor bias resistors R1, R2 and base current IB
- bottlesheep
- · Replies 9 ·
Fueling a Complete Game: Calculating Cereal Needs for Baseball Pitchers
- LiquidIce
- · Replies 2 ·
How Do Particle Measurements and Dynamic Equations Impact Quantum Mechanics?
- swoosh18
- · Replies 2 ·
How Does Dimensional Analysis Explain Standing Waves on a String?
- Nb
- · Replies 2 ·
What is R in the moment of inertia integral?
- StephenPrivitera
- · Replies 13 ·
Angular Momentum of an ice skater
- timtng
- · Replies 10 ·
Rock thrown from 230 m building at 100 m/s - did I use height correctly?
- yadda
- · Replies 13 ·
Redshifts and important early events
- Math Is Hard
- · Replies 1 ·
Work done pulling a toboggan up a 25.7° hill
- Foon
- · Replies 2 ·
Submarine fluid physics problem
- cathliccat
- · Replies 2 ·
What is the maximum acceleration a truck can have to keep a crate in place?
- FLANKER
- · Replies 2 ·
Why Add 33º to the Force Direction in Pool Ball Collision?
- shan
- · Replies 6 ·
Volume expansion and pressure change
- fish
- · Replies 6 ·
How Do You Convert Torque from Pound-Feet to Newton-Meters?
- ShakeWell
- · Replies 2 ·
Conservation of Momentum in a Two-Pendulum Collision
- Eternal Ophidian
- · Replies 2 ·
Sound wave molecule returning to normal position
- timtng
- · Replies 5 ·
Solving Vectors: Boater Needs to Cross River at 20mph
- tucky
- · Replies 2 ·
What Laws and Theories Predict Particle Motion?
- daodude1987
- · Replies 2 ·
How Can You Calculate Gravity Using an Atwood Machine?
- TroubledStudent
- · Replies 2 ·
Electric field from a line charge on the x-axis
- zath
- · Replies 10 ·
What are the forces and connections in this roof truss?
- exequor
- · Replies 5 ·
What is the coefficient of static friction of rubber on wood?
- marshall4
- · Replies 6 ·
What Is the Velocity of the Third Piece After the Ball Explodes?
- DrVirus
- · Replies 2 ·
How to find rocket height with changing mass given specific impulse and mass ratio
- lastlaugh
- · Replies 2 ·
Does dropping a rock or catching a fish affect water displacement in a pond?
- TigerLilly
- · Replies 2 ·
Torque on a current-carrying loop
- gnome
- · Replies 2 ·
Completely inelastic collisions
- marshall4
- · Replies 2 ·
Can Calculating Real Coefficient of Friction Solve Loop-the-Loop Lab Variance?
- faust9
- · Replies 2 ·
Does cooling rate decrease as coffee gets cooler?
- barcat
- · Replies 4 ·
Artillery gun projectile motion problem
- Trigun
- · Replies 2 ·
Finding power from work equation and work to compress a spring
- ACLerok
- · Replies 2 ·
Calculate Time for Mass to Reach Equilibrium Position
- timtng
- · Replies 4 ·
Calculate Particle's Speed in SHM with Period of 2.4 s and Amplitude of .1 m
- timtng
- · Replies 2 ·
Ball of mass 450g lands on a spring with k = 5.0E3
- DrVirus
- · Replies 2 ·
How Do You Calculate the Final Velocity of a Ball Rolling Down a Sloped Roof?
- aerichk
- · Replies 2 ·
Differences between the magnetic field B and the field H
- Beer-monster
- · Replies 4 ·
Potential Energy, Conservation of Energy problem
- pezzang
- · Replies 2 ·
AP Physics spring compression and elevator work problems
- pezzang
- · Replies 5 ·
Does the period or frequency represent an orbit?
- marshall4
- · Replies 2 ·
Calculating Friction Force: Static and Kinetic Coefficients Explained
- wachaif
- · Replies 2 ·
How Do You Calculate Mass and Spring Constant from Oscillation Period Changes?
- izmeh
- · Replies 5 ·
Suggestions for projectile motion
- exequor
- · Replies 2 ·
How many earth years is Jupiter's orbit around the sun?
- marshall4
- · Replies 2 ·
Integral of sin(θ)-cos(θ)/sin(θ)+cos(θ) not matching given answer
- mattmns
- · Replies 3 ·
Solve Momentum Problem: Boat's Final Velocity
- Hyperreality
- · Replies 3 ·
Conservation of Energy of a bullet
- BeefyBeef
- · Replies 2 ·
Will a Bullet Shot Straight Up Fall Back to Its Starting Point?
- porkok
- · Replies 11 ·
8 kg and 5 kg blocks on a pulley with friction
- cowgiljl
- · Replies 2 ·
Centripetal Force of merry-go-round
- nautica
- · Replies 3 ·
How Much Energy Can a Custom Car Capacitor Store?
- star2003
- · Replies 3 ·
How many bricks can I stack before the bottom one is crushed?
- nautica
- · Replies 2 ·
Calculating Energy of a Conduction Band Electron in Silicon
- NPFD
- · Replies 4 ·
Linear momentum ratio when charged particles approach
- missrikku
- · Replies 2 ·
What formula would I use to find the horizontal force?
- slyguy
- · Replies 2 ·
Energy conservation on a roller coaster
- Yaqout
- · Replies 2 ·