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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Heat - What is the temperature of this object?
- MIA6
- · Replies 2 ·
What Happens to the Bananas When a Monkey Climbs the Rope?
- joe215
- · Replies 1 ·
What is the Mass of the Suspended Block in a Two-Block Pulley System?
- xmflea
- · Replies 12 ·
Kinematics Test Question: Can You Solve This Sheriff and Robber Pursuit Problem?
- zach5681b
- · Replies 2 ·
Finding weight and angle for zero hip joint force in leg traction setup
- Leid_X09
- · Replies 10 ·
What Are the Frequencies of the First Two Overtones in a Closed Air Column?
- Exhonour
- · Replies 1 ·
Diver decelerating in water with drag force F_D = cv
- Symstar
- · Replies 9 ·
Friction Coefficients and Minimum Normal Force
- Sligh
- · Replies 2 ·
Does Acceleration Affect Weight Readings?
- I_LuV_FiZiX
- · Replies 1 ·
Find Net Force of 2.5x10^5N Training Helicopter
- xmflea
- · Replies 1 ·
Friction problem, getting started
- maniacp08
- · Replies 6 ·
How do you find Acceleration when given Distance and Time?
- Johnny56
- · Replies 3 ·
How Do You Calculate Relative Velocity Between Two Moving Cars?
- hockeynicole
- · Replies 1 ·
Thermodynamic problem using ideal gas( me (T_T) )
- jabjab
- · Replies 2 ·
Finding distance and time? i already found out half of the problem.
- mandaa123
- · Replies 1 ·
Simple pulley system + kinetic friction, find tension
- closer
- · Replies 3 ·
Estimating Energy in a Gallon of Gasoline
- fk378
- · Replies 1 ·
How Fast Must an Electron Travel to Excite a Hydrogen Atom?
- ke0nGz
- · Replies 3 ·
Apparent weight on an elevator. Magnitude of its acceleration?
- WPCareyDevil
- · Replies 6 ·
Finding height with constant acceleration
- !!!
- · Replies 2 ·
Projectile Motion of ball down inclined plane
- mikee
- · Replies 6 ·
Spinning a bucket in a vertical circle
- proace360
- · Replies 2 ·
Motion In Two Dimensions Lab Question
- Iokia
- · Replies 4 ·
Find the Coordinates of Point B using Cross Product
- Melawrghk
- · Replies 2 ·
What Was the Mass of the Original Stack of Books?
- omgitsmonica
- · Replies 1 ·
Proving e^Ae^B=e^{A+B} for Commuting Matrices
- kreil
- · Replies 1 ·
Baseball and projectile motion problem
- billieluv
- · Replies 1 ·
Potential inside of chrged non-conductive sphere
- anizet
- · Replies 7 ·
Does r(t) = P1 + t*v give a line equation or position vectors?
- astonmartin
- · Replies 1 ·
Non-uniform circular motion and tangential acceleration
- Symstar
- · Replies 2 ·
How Is the Coefficient of Friction Calculated in a Spring Block System?
- southernbelle
- · Replies 3 ·
How Do You Calculate Initial Speed in Projectile Motion?
- billieluv
- · Replies 1 ·
Water column height needed to burst a wine barrel
- lyndan
- · Replies 4 ·
How Do You Calculate Potential Energy with a Constant Force?
- maniacp08
- · Replies 4 ·
Electric field at the center of a square with alternating and aligned charges
- lyndan
- · Replies 1 ·
Angular Acceleration of a system.
- myr10
- · Replies 1 ·
What Is the Angular Speed of a Falling Meter Stick?
- gmiller4th
- · Replies 1 ·
Newton's second law and a locomotive
- Jennifer001
- · Replies 6 ·
Pulley question(Newtons third law)
- Jennifer001
- · Replies 1 ·
More projectile motion difficulties
- billieluv
- · Replies 4 ·
Really simple system of equations
- yoleven
- · Replies 1 ·
Are springs in series or parallel when attached to a bar at different distances?
- zorostang
- · Replies 6 ·
What is the Acceleration of a 2442 kg Elevator Moving Upward?
- Abb
- · Replies 3 ·
Drag of Car across frictionless surface.
- JosephLee
- · Replies 1 ·
How Do You Calculate the Tension in Multiple Wires Supporting Artifacts?
- lisalisa
- · Replies 7 ·
Coefficient of kinetic friction on a 30.5° ramp
- NYbikerkid
- · Replies 1 ·
Calculating Spring Force with a Man's Jump and Platform Compression
- southernbelle
- · Replies 2 ·
Using acceleration to find distance traveled
- swede5670
- · Replies 3 ·
Coefficient of static friction of chain
- coolcat_ka
- · Replies 4 ·
What was the object's speed as it fell off the edge of the table?
- notagenius08
- · Replies 2 ·
An Automobiles acceleration and speed
- swede5670
- · Replies 2 ·
Calculating Power Dissipation in a Parallel Circuit with Multiple Resistors
- buckeyes
- · Replies 11 ·
How dangerous is it to ascend with expanding lungs?
- erik-the-red
- · Replies 8 ·
Frictional Forces without coefficient
- STS816
- · Replies 1 ·
Finding friction force and acceleration with coefficient of kinetic friction
- theLHC
- · Replies 5 ·
Projectile Motion thrown basketball
- Cate
- · Replies 1 ·
What is the relationship between angular velocity and tangential velocity?
- rebeccc
- · Replies 6 ·
Calculating Frequency of Oscillating Mass on a Spring
- aleferesco
- · Replies 4 ·
What Determines the Charge of an Object in Electrostatic Induction?
- MIA6
- · Replies 4 ·
Direction of the net force on the charge
- MIA6
- · Replies 2 ·
Capacitors disconnected from the battery
- laduch
- · Replies 3 ·
Series circuit: 10Ω resistor, bulb, 12V source
- ElectricSlide
- · Replies 9 ·
Projectile fired at 60° with 300 m/s: find distance and height in 6 seconds
- kitle545
- · Replies 1 ·
Calculating Work Required to Lift a Hanging Chain
- Default User
- · Replies 2 ·
Equal and Opposite variable forces on a mass - does it accelerate?
- Erica799
- · Replies 1 ·
Swinging from a vine (circular motion/tension problem)
- closer
- · Replies 4 ·
How Do You Calculate Stopping Distance Using a Velocity-Time Graph?
- getfirefox
- · Replies 1 ·
Calculating direction of magnitude of a crate on a ramp
- WPCareyDevil
- · Replies 2 ·
Calculating Radial Acceleration in Nonuniform Circular Motion
- subwaybusker
- · Replies 12 ·
What Is the Final Velocity of the Wood After Bullets Impact?
- omeromer
- · Replies 3 ·
Find the magnitude of the electric field at the center
- larkinfan11
- · Replies 5 ·
Calculating energy for a dropped ball without mass given
- pinkvoid
- · Replies 1 ·
How Does a Rock Climber Use Friction to Climb?
- uberbandgeek6
- · Replies 3 ·
Box sliding down 30° frictionless incline: potential energy calculation
- maniacp08
- · Replies 4 ·
What Is the Final Velocity of a 2 kg Mass on a Frictional Incline?
- Pakbabydoll
- · Replies 3 ·
Finding force and position from velocity function v(x)=1/x²
- lylos
- · Replies 5 ·
Find force link 3 exerts on link 2
- jturn
- · Replies 2 ·
Circular Motion - Roadway Bank Angle
- JeffNYC
- · Replies 3 ·
AP Physics: Vectos and their properties
- Blodwynne
- · Replies 4 ·
Partial derivatives with Wave Function
- abelanger
- · Replies 2 ·
Projectile Motion Using Speed Graph
- calvert11
- · Replies 3 ·
Calculating Work Done on a Block Moving Up an Incline
- myk127
- · Replies 3 ·
Copper wire resistance and voltage at different temperatures
- jsantor1
- · Replies 11 ·
How Do You Calculate Velocity and Energy in an Elastic Collision?
- irun4edmund
- · Replies 4 ·
Differences between compound and multiple levers
- Muirghiel
- · Replies 1 ·
Sports car overtaking stock car with different accelerations
- bsmith8808
- · Replies 2 ·
Coil with partial insulation in magnetic field
- jackd
- · Replies 1 ·
What Is the Error of Log(mh) When m and h Have Known Relative Errors?
- excel000
- · Replies 1 ·
Two cables at 90° hold a hanging 255kg mass
- raven2783
- · Replies 8 ·
Applications of Faraday's Law: Deflection of Pointer in a Magnet-Coil System
- jackd
- · Replies 2 ·
Finding velocity from displacement data in a free fall experiment
- papi
- · Replies 27 ·
Minimum speed to maintain a circular trajectory
- xxgaxx
- · Replies 1 ·
How Fast Can a Rock Spin Before the String Breaks?
- hofluff87
- · Replies 3 ·
Regents Problems Best Solution
- spot
- · Replies 1 ·
Crates with diff. mass inside elevator at constant speed
- bocobuff
- · Replies 1 ·
What is the Electric Field Outside a Pipe with a Uniform Charge Density?
- jaejoon89
- · Replies 4 ·
Calculate displacement based on velocity and acceleration
- Planefreak
- · Replies 3 ·
A rocket is launched kinematics
- Jennifer001
- · Replies 1 ·
Finding the force on a front tooth from an elastic cord at two attachment points
- lovelockdown
- · Replies 3 ·
Calculating Minimum Force for Stationary Block Against Wall
- dwan3
- · Replies 4 ·