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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Finding tension when a human stands on an accelerating sled
- AznBoi
- · Replies 3 ·
Solving Forces Confusion: Finding Chris's Force on Chair
- AznBoi
- · Replies 5 ·
How does magnet position affect induced current direction in a coil?
- Werg22
- · Replies 1 ·
Centripetal acceleration for fan blade and weightlessness in airplane loop
- wakejosh
- · Replies 5 ·
How Far Does a Block Fall When Released from an Unstretched Spring?
- mathewings
- · Replies 1 ·
Estimating Work on the Ferris Wheel: George Washington Gale Ferris Jr.
- jonlevi68
- · Replies 1 ·
What is the correct formula for calculating focal length in convex mirrors?
- kankerfist
- · Replies 3 ·
Solving the Ferris Wheel Problem: Estimating Work Requirement
- jonlevi68
- · Replies 1 ·
Finding current and voltage in a multi-loop circuit
- jevan025
- · Replies 14 ·
Stumped: How to Calculate Force of Car-Wall Collision
- courtney1121
- · Replies 4 ·
Momentum conservation in collisions and swimmer diving off boat
- wakejosh
- · Replies 4 ·
How Do I Solve This Work/Energy Problem?
- muna580
- · Replies 26 ·
Calculating Pressure for Stacked Books on Glass Coffee Table
- SamTsui86
- · Replies 2 ·
Calculate Average Power: 60kg Woman Running Up 4m Stairs in 6s
- wakejosh
- · Replies 5 ·
Calculating Water Volume for Energy Storage in Electric-Power Plants
- bosox3790
- · Replies 3 ·
What is an electron energy level?
- Werg22
- · Replies 4 ·
How Do You Calculate the Coefficient of Kinetic Friction on an Incline?
- aeroengphys
- · Replies 2 ·
32 kg box pulled at 54.5° with kinetic friction coefficient 0.330
- mixedtape_15
- · Replies 10 ·
Fletcher's Cart Lab: What is it?
- NIZBIT
- · Replies 3 ·
What is the Work Done by a Pitcher on a Baseball?
- goalieguy
- · Replies 5 ·
Solving a Physics Problem: Block Sliding on Hemisphere without Friction
- ductape
- · Replies 4 ·
Why rubber should be used for plane wheels?
- john89
- · Replies 11 ·
Find the total mechanical energy.
- YMasoud
- · Replies 3 ·
What is the force exerted on the liquid by the pot?
- Northstar
- · Replies 5 ·
Centripetal Force of a tied ball
- Touchme
- · Replies 4 ·
How fast must you throw a snowball against a wall in order to make it melt?
- twotaileddemon
- · Replies 23 ·
Calculating Blood Velocity in the Aorta
- mikefitz
- · Replies 2 ·
Difference between pendulum with a peg
- *best&sweetest*
- · Replies 3 ·
What is the velocity of a wrecking ball at a 20.0 degree angle?
- xrotaryguy
- · Replies 5 ·
How Does a Flywheel Prevent a Car from Rolling Over in High-Speed Turns?
- SadieLou
- · Replies 1 ·
A problem from giamcoli ( it is )
- oahsen
- · Replies 10 ·
Forces, velocities, and angles
- :::JMANN:::
- · Replies 15 ·
Is a rocket explosion elastic or inelastic from energy loss?
- Touchme
- · Replies 11 ·
Finding average force with out taking mass into account
- xrotaryguy
- · Replies 2 ·
Pulley system with hanging and resting masses
- the_quack
- · Replies 9 ·
Bullet Hits Disc: Velocity of Inelastic Collision
- satishinamdar
- · Replies 17 ·
How Does Projectile Angle Affect Range in Motion Physics?
- Cole07
- · Replies 27 ·
Understanding Forces on a Box: Basic Physics Question"
- MattsVai
- · Replies 4 ·
Calculating Speed from Acceleration and Time
- wakejosh
- · Replies 2 ·
How Do You Calculate the Radius of the Sun Using Its Angular Size?
- needhelp83
- · Replies 3 ·
Pulling on a cylinder and energy lost to friction
- ThisIsWhyImABioMajor
- · Replies 1 ·
Why does an image appear when an object is at the focus of a concave mirror?
- jnimagine
- · Replies 12 ·
Calculating Angular and Radial Acceleration in Circular Motion
- SUchica10
- · Replies 1 ·
How much thermal energy is produced in this collision?
- bosox3790
- · Replies 2 ·
An emf self-induced in a solenoid of inductance L changes. .
- Adn4n
- · Replies 4 ·
How many grams are in one kilogram?
- feod2003
- · Replies 3 ·
Solving for Block Position After 3.3J Work on Spring-Block System
- mbrmbrg
- · Replies 1 ·
What is the percent of energy lost in an inelastic collision?
- *best&sweetest*
- · Replies 2 ·
Find Spring Position After Attaching 2.7kg Mass
- bosox3790
- · Replies 4 ·
Angular acceleration of a cooling fan decelerating to a stop
- vinny380
- · Replies 7 ·
Calculating Momentum Change with an Impulse of 25 N~s
- you too
- · Replies 8 ·
Conservation of momentum (should be easy)
- gbdusty
- · Replies 3 ·
Why Is the Polar Form of the Position Vector Defined as r = r\vec{r}?
- sherlockjones
- · Replies 1 ·
What Are the Three Basic Formulas in Physics?
- Physics_n00b
- · Replies 2 ·
What is the minimum work needed to push a car
- bosox3790
- · Replies 4 ·
Solving Physics Problem: Find Distance up Incline (Grade 11)
- RebWal
- · Replies 3 ·
How Do You Calculate Initial Speed on a Frictionless Incline?
- bosox3790
- · Replies 1 ·
How Long Will It Take for a Car to Accelerate from 55 km/h to 75 km/h?
- Sportsman4920
- · Replies 6 ·
Position of CM for 3 Cubes Along a Line
- vinny380
- · Replies 13 ·
Torque and work on 183kg flywheel with 0.63m radius
- bobby3280
- · Replies 2 ·
Calculating Fraction of Kinetic Energy Transferred in Head-on Collision
- stunner5000pt
- · Replies 1 ·
Torque with pulleys and bucket of water
- mikefitz
- · Replies 3 ·
Which Friction Coefficient Applies to a Skidding Car on Ice?
- wakejosh
- · Replies 3 ·
Understanding Vector Rotation and Derivation of Angular Velocity Formula
- sherlockjones
- · Replies 2 ·
Projectile Motion Range: Finding the Maximum Distance with Given Speed and Angle
- Cole07
- · Replies 3 ·
Converting feet to foose using Ann's height
- wakejosh
- · Replies 8 ·
Calculating Tension in a Rotating Hoop
- oahsen
- · Replies 6 ·
Pilot flying square path in diagonal 60km/h wind
- ellusion
- · Replies 11 ·
Maximum Depth for Organisms Under the Sea
- mikefitz
- · Replies 3 ·
How to Find Tangential Velocity and Acceleration on a Frictionless Curve?
- the_d
- · Replies 3 ·
Torque? Rotation it has the Word Pivot
- Kalie
- · Replies 2 ·
How Does the Deltoid Muscle Maintain Arm's Static Equilibrium?
- Kalie
- · Replies 1 ·
Conservation of Momentum and Energy in Elastic Collisions
- mathewings
- · Replies 2 ·
Will moving closer to the fulcrum impact the balance of a see-saw?
- bengaltiger14
- · Replies 4 ·
Can you me with this conceptual question?
- *best&sweetest*
- · Replies 2 ·
Calculate Velocity of 100 lb Block Dropped onto Stiff Spring
- the_d
- · Replies 10 ·
How Does an Electric Field Affect the Stability of Gas Induced Dipoles?
- stunner5000pt
- · Replies 2 ·
One more impulse problem Hopefully
- TheHamburgler1
- · Replies 2 ·
Checking my electricity homework answers
- Energize
- · Replies 13 ·
How would I find the reversal potential for conductance
- madbeemer
- · Replies 1 ·
Calculating Frequency for a Vertical Circle
- fizixisannoying
- · Replies 3 ·
What is the Kinetic Energy at Point A?
- muna580
- · Replies 5 ·
Particle undergoes a displacement
- sherlockjones
- · Replies 3 ·
Experimenting with a Concave Mirror and a Candle
- jnimagine
- · Replies 1 ·
Finding tension in strings supporting a horizontal rod with suspended mass
- catenn
- · Replies 9 ·
Projectile launch point problem
- SA32
- · Replies 3 ·
Bullet embedded in wooden block slides 7.5 m
- BunDa4Th
- · Replies 11 ·
Calculate Magnitude of Target Body Momentum After Projectile Collision
- kbyws37
- · Replies 3 ·
Conservation of angular momentum on a piano stool
- map7s
- · Replies 11 ·
Zero Torque and static equilibrium
- map7s
- · Replies 1 ·
Does sand or water exert greater impulse when stopping a jump?
- TheHamburgler1
- · Replies 21 ·
Orbital Radius of Earth Satellite: Solve for r
- Bernie Hunt
- · Replies 2 ·
Conservation of Momentum in a Moving System
- kbyws37
- · Replies 2 ·
How Do You Calculate Spring Length and Ball Speed in Circular Motion?
- mathzing
- · Replies 6 ·
Conceptual Problem with Springs and Energy
- Dorothy Weglend
- · Replies 4 ·
Elastic Collision of hockey pucks
- americanforest
- · Replies 3 ·
Work done compressing a spring with k=290 N/m
- dcgirl16
- · Replies 3 ·
How Does Passenger Movement Affect Airplane Momentum?
- BigMann
- · Replies 4 ·
Calculating Energy Absorption of 2.0kg Bag of Ice
- Zeitgeist
- · Replies 2 ·