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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Insulating spherical shell prob
- hotmail590
- · Replies 1 ·
Converting weight from pounds to newtons, mass, and kilograms
- enovativ
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Solving for the Third Fragment's Speed Using Momentum and Collision Equations
- Neerolyte
- · Replies 6 ·
Find the centripetal acceleration of the yoyo
- megha
- · Replies 2 ·
Whats the name of that tool that
- eax
- · Replies 4 ·
About Blocks, torques and wedges
- willworkforfood
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Calculating Radioactive Decay: Estimating Age of Ancient City
- ussrasu
- · Replies 3 ·
Finding force from power and velocity for a cyclist
- 7tongc5
- · Replies 2 ·
Minimum amount of energy necessary to remove a proton from 42-Ca atom
- ussrasu
- · Replies 3 ·
Projectile Speed and Distance Calculation
- 404
- · Replies 3 ·
Understanding Capacitors: Why Removing One Affects the Net Charge on the Other
- FrogPad
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Tension in cord connecting 1kg inclined box to 3kg horizontal box
- suspenc3
- · Replies 5 ·
What are the tensions in the two ropes holding up a ball?
- sully24
- · Replies 2 ·
Is Gravity an Exception to Newton's Third Law?
- Zee Student
- · Replies 2 ·
Surface of Equal Gravitational Potential
- amcavoy
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Diver falling into swimming pool - forces
- Punchlinegirl
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What force must the man pull on the rope to rise with a constant velocity
- suspenc3
- · Replies 8 ·
Lab on measuring the inertial mass
- F.B
- · Replies 2 ·
Bullet embeds in block and slides up frictionless incline
- Punchlinegirl
- · Replies 5 ·
Paratrooper falls without parachute
- confusedaboutphysics
- · Replies 3 ·
Tennis serve: impulse, air resistance, and velocity over distance
- Chocolaty
- · Replies 1 ·
Physics 218 - Volume 1 - Mechanics Introduction Question
- lostdaytomorrow
- · Replies 2 ·
Finding resultant of two forces at non-90 degree angles
- Chocolaty
- · Replies 7 ·
Understanding Standing Waves: Interference and Maximum Positions Explained
- dekoi
- · Replies 1 ·
How Do You Calculate Spring Constant for Launching a Satellite?
- babbagee
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How do I calculate the maximum compression of a spring in a physics problem?
- NutriGrainKiller
- · Replies 11 ·
What are integrals and how are they used in physics and calculus?
- suspenc3
- · Replies 2 ·
How Does Tension Change When Horses Pull in Different Configurations?
- matiishere
- · Replies 1 ·
How Can I Improve My AS Level Physics Skills Over the Holiday?
- khizman
- · Replies 1 ·
How Much Time Does It Take to Lift a 300 kg Piano 10 Meters?
- PhunWithPhysics
- · Replies 1 ·
Force of Friction: Reaction Force and Application
- Zee Student
- · Replies 4 ·
Projectile Motion Archer Problem
- nickelodeon77
- · Replies 4 ·
What Are Good Resources for Understanding Basic Probability Distributions?
- fasterthanjoao
- · Replies 1 ·
Calculating Time to Lift 300kg Piano 10 Meters with 400 Watts Power
- PhunWithPhysics
- · Replies 1 ·
How Is Average Force Calculated When Bullets Hit Different Surfaces?
- brad sue
- · Replies 3 ·
Why Do Force and Energy Analyses Yield Different Spring Extensions?
- positron
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Average force and center of mass
- ViewtifulBeau
- · Replies 9 ·
Spring launches ball, skier friction on incline
- jrd007
- · Replies 6 ·
Practice Physics Qs w/Answers: Distance Ed High School Vectors
- quis
- · Replies 1 ·
What's Wrong in the Boy's Reasoning from Newton's 3rd Law?
- Meteo
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Calculating Speed of Toyota After Collision with Cadillac
- 7tongc5
- · Replies 3 ·
What is the formula for calculating the radius of a loop in a jet fighter?
- Karma
- · Replies 7 ·
How can I solve this thermodynamics problem involving an adiabatic process?
- thenewbosco
- · Replies 1 ·
How Does Ice Melt When Hot Water Is Added?
- 92EG6
- · Replies 1 ·
Easy circuit question but i get the wrong answer for PD
- mr_coffee
- · Replies 4 ·
Centripetal acceleration from plumb bob angle in car
- sap_54
- · Replies 1 ·
Is My Monkey Physics Calculation Correct?
- Apple123
- · Replies 1 ·
What Is the Tension in Vine B for a Hanging Monkey?
- Apple123
- · Replies 6 ·
How Fast Was the Car Going Before It Hit the SUV?
- Ckoskie
- · Replies 3 ·
Coefficient of static friction graph
- SwAnK
- · Replies 1 ·
Bridge Force Calculations for Hiker's Weight
- playboy2006
- · Replies 1 ·
Angular Speed of Disk with 260 kg Mass and 69 kg Person
- playboy2006
- · Replies 1 ·
What is the Centripetal Acceleration of a Yoyo on a Horizontal Swing?
- megha
- · Replies 1 ·
Net Torque of a CD: Mass 17 g, Radius 6 cm, Acceleration 23 rad/s
- playboy2006
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Will Sir Lancelot's Weight Cause the Cable to Break?
- erik-the-red
- · Replies 4 ·
How do u know the direction of the current?
- mr_coffee
- · Replies 2 ·
What's the Correct Way to Add Multiple Vectors Using Components in Physics?
- quis
- · Replies 4 ·
Finding acceleration of 120kg asteroid pushed by three jetpacks
- suspenc3
- · Replies 3 ·
Force of Friction: Solving for 15 kg Child on 4.0m Slide at 40 Degrees
- msimard8
- · Replies 2 ·
Speed of Block at Top of Track: Solving Friction Problem
- AdnamaLeigh
- · Replies 1 ·
Barrier Tunneling: Proton Transmission Coefficient
- Kazza_765
- · Replies 1 ·
Work phythagorean theorem Question
- SS2006
- · Replies 2 ·
How Can You Conduct a Simple Single Dimension Motion Lab Under Time Constraints?
- Mike AkA Don
- · Replies 1 ·
Four mechanics problems: friction, pulley, power, collision
- jolin4bj
- · Replies 1 ·
Does Falling Rain Experience Air Resistance?
- sharonita
- · Replies 13 ·
Calculating Minimum Coefficient of Friction for Safe Highway Curves
- shawpeez
- · Replies 3 ·
How is friction related to work done
- SS2006
- · Replies 1 ·
Find Velocity of Mass in 12 Hours
- Altoids
- · Replies 1 ·
How High Will the Block Rise After a Gunshot?
- 7tongc5
- · Replies 4 ·
Forces when pushing and stopping a bicycle
- aznspx
- · Replies 3 ·
A 5.0 kg block pushed 3 m up a vertical wall
- Trista
- · Replies 4 ·
Projectile + Conservation of energy
- Neerolyte
- · Replies 4 ·
How do you calculate the acceleration of a pendulum at a given angle?
- Petrikovski
- · Replies 5 ·
How Is the Change in Linear Momentum Calculated in a Collision?
- ViewtifulBeau
- · Replies 1 ·
Relative velocity of Electromagnetic waves
- Eng67
- · Replies 5 ·
Baseball thrown from roof using work-energy theorem
- babbagee
- · Replies 7 ·
Conservation of momentum of a neutron
- ViewtifulBeau
- · Replies 6 ·
Maximum power/current for a battery?
- bakshi
- · Replies 3 ·
What is the Mass of a Thin Rectangular Plate with a Circular Hole?
- Punchlinegirl
- · Replies 14 ·
How Does Centripetal Force Affect the Angle of Water in a Microwave Carousel?
- physixnot4me
- · Replies 1 ·
Excess charge on capacitor 2 in 10V 5-capacitor network
- DivGradCurl
- · Replies 3 ·
Wave pulse traveling up a hanging rope and string displacement velocity
- Pixter
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Long vs Short Bows: Does Force Depend on String Length?
- daniel_i_l
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Current, Power, and Energy problem
- caddyguy109
- · Replies 10 ·
Solving a Problem: Calculating Position of Image with 2 Diverging Lenses
- chino22
- · Replies 1 ·
Block sliding down incline collides elastically with stationary block
- lando45
- · Replies 1 ·
Elastic collision of two billiard balls at origin
- Ckoskie
- · Replies 2 ·
Calculating Electric Field at Origin due to Two Point Charges
- hotmail590
- · Replies 2 ·
Helicopter Problem: Calculating Lift Force on Rotors
- ebola_virus
- · Replies 5 ·
Hello everyone, having troulbes applying Kirchoff's Rule~DC circuits
- mr_coffee
- · Replies 3 ·
Inductance of a coil for a given emf and current change
- jena
- · Replies 2 ·
How to Calculate Rate of Thermal Energy Production in a Copper Coil
- jena
- · Replies 5 ·
How can u tell if somthing is in series or parallel?
- mr_coffee
- · Replies 2 ·
Car Colision and speed question
- Ckoskie
- · Replies 4 ·
Work and energy - easy question
- 7tongc5
- · Replies 3 ·
What Are the Forces Acting on Boxes on Inclined Planes?
- kevinlikesphysics
- · Replies 7 ·
Calculating the Spring Constant and Work Done by an Archer's Bow
- Trista
- · Replies 2 ·
Describe forces on a test charge in electromagnetism
- Blink691
- · Replies 2 ·
How Well Do You Understand Energy and Work Concepts?
- Weatherkid11
- · Replies 2 ·
How Do You Calculate the Centripetal Force of a Whirling Ball?
- smileyjen523
- · Replies 3 ·