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 Can I Maximize the Distance of My Two-Liter Bottle Projectile Launcher?
- Amadeus
- · Replies 1 ·
Total force exerted on the can by the air pressure?
- Sucks@Physics
- · Replies 8 ·
Calculating Mass on a Frictionless Surface
- Hawk_RSA
- · Replies 7 ·
Shear stress, what is a flat tie bar ?
- scotthands
- · Replies 4 ·
Solving Kinematics Problems: Distance Traveled Before Applying Brakes
- nblu
- · Replies 3 ·
Mechanical energy of a pendulum- I just can't get it
- BlueSkyy
- · Replies 4 ·
Questions on the basic principles of physics.
- MoreZitiPlease
- · Replies 8 ·
How Does Torque Affect the Stopping Time of a Potter's Wheel?
- big_sur
- · Replies 1 ·
Relativistic time, distance and velocity
- Bill Foster
- · Replies 26 ·
How Do I Calculate the Total Resistance in a Circuit with Multiple Resistors?
- Marghk
- · Replies 5 ·
Units of velocity and finding acceleration from distance and time
- MoreZitiPlease
- · Replies 6 ·
Uniform Circular Motion of a satellite
- DramatikaRocks
- · Replies 2 ·
Asteroid Collision Course and Sagging Backpack
- LongTermStudent
- · Replies 6 ·
Finding the Velocity of the Final Chunk in an Exploding Hockey Puck Scenario
- Taximes
- · Replies 2 ·
Why Does Water in a Boiling Container Not Boil?
- jlaugh87
- · Replies 1 ·
Elastic collision of two billiard balls at right angles
- engineer2010
- · Replies 3 ·
Area under the curve in PV diagram
- jack1234
- · Replies 2 ·
Velocity and acceleration of a person and train
- crystaluc12
- · Replies 2 ·
How high does a projectile shot at 1.30×10⁴ km/hr go?
- tibessiba
- · Replies 8 ·
In a popular amusement-park ride, a cylinder of radius 2.00 m is set in rota
- lettertwelve
- · Replies 4 ·
Tension of String/ Mass question
- neoking77
- · Replies 3 ·
Solve Optics Problems: Goldfish Eye & Spherical Refraction
- w2dot
- · Replies 2 ·
Topics for Physics Extended Essay
- kashyap3
- · Replies 6 ·
Current needed to hold conducting wire on inclined plane in magnetic field
- EvanQ
- · Replies 7 ·
Finding the Net Force on a Box on an Inclined Plane
- chiurox
- · Replies 2 ·
Calculating heat for melting ice and warming water
- jack1234
- · Replies 2 ·
Find Apparent Weight of 85 kg Man on Elevator
- Mitch ODriscoll
- · Replies 6 ·
Why Is Conduct Not Equivalent to Absorb in Experiments?
- jack1234
- · Replies 1 ·
How Do You Time a Projectile to Hit a Moving Train?
- crystaluc12
- · Replies 1 ·
How Is Force Calculated in a Human Cannonball Act?
- Rylynn97
- · Replies 1 ·
Three-block pulley system with masses 1.0, 3.0, and 5.0 kg
- chiurox
- · Replies 2 ·
Angular Momentum of a billiard ball
- Destrio
- · Replies 6 ·
Hockey puck sliding on ice with different friction coefficients
- chiurox
- · Replies 2 ·
The gas is changing state?(q36)
- jack1234
- · Replies 1 ·
Energy transfer from cool part to hot part(q38)
- jack1234
- · Replies 1 ·
Is Internal Energy Always Proportional to Temperature?
- jack1234
- · Replies 1 ·
About change of internal energy(q41)
- jack1234
- · Replies 1 ·
Calculate Heat Required to Raise Water Temperature: 5kg, 60° to Boiling Point
- jack1234
- · Replies 4 ·
Ideal Gas Law: Solve for T2 - Q26
- jack1234
- · Replies 2 ·
Centripetal accel - airplane flying in a horizontal circle
- lettertwelve
- · Replies 8 ·
Force question on elevator cable
- get_rekd
- · Replies 4 ·
Finding friction force and acceleration on a 37° incline
- copyfilew
- · Replies 5 ·
Block sliding down quarter-circle and colliding inelastically
- logglypop
- · Replies 9 ·
Tension and force of connected blocks
- chompysj
- · Replies 17 ·
Percent efficiency of three power generators
- get_rekd
- · Replies 2 ·
Does Thermal Energy Determine Temperature?
- jack1234
- · Replies 1 ·
How Does Friction Affect Energy and Motion on a Ramp?
- physicsbhelp
- · Replies 15 ·
Orbital Energy of a binary star system
- Aquafina20
- · Replies 5 ·
How Do You Rearrange the Equation x = x₀ + V₀t + ½at² to Solve for V₀?
- petern
- · Replies 3 ·
How Much Energy Does It Take to Heat Ice to Steam?
- srose9625
- · Replies 2 ·
Calculating Pressure of Air After a Bicycle Pump Stroke
- jack1234
- · Replies 6 ·
Question regarding vector diagram
- nblu
- · Replies 7 ·
Particle Acceleration(No clue how to do)
- jago-k1
- · Replies 7 ·
Centre of mass of velocity (q61)
- jack1234
- · Replies 2 ·
How Far Does a Sand Bag Fall from a Rising Hot Air Balloon After Five Seconds?
- petern
- · Replies 4 ·
Calculate Force to Tip 5m Plank w/ 50kg Person
- logglypop
- · Replies 11 ·
How Much Heat is Released When Water Cools?
- noorjabaieh
- · Replies 1 ·
Solving Inelastic Collision and Simple Harmonic Motion Problems
- physicsbhelp
- · Replies 9 ·
Finding block mass from pulse travel time in compound wire
- trusean
- · Replies 1 ·
Guys, I have 4 easy questions. (probably easy to you)
- MoreZitiPlease
- · Replies 31 ·
What Forces Create Torque on a Merry-Go-Round?
- biomajor009
- · Replies 1 ·
How Do You Solve These Kinematics Problems?
- MoreZitiPlease
- · Replies 20 ·
How many waves pass a point in 1 minute given wavelength and speed?
- BarCode
- · Replies 9 ·
Finding current through R1 in parallel-series resistor network
- mujadeo
- · Replies 4 ·
How Does a Bent Wire Affect the Magnetic Field at a Point?
- EvanQ
- · Replies 3 ·
Solve for Impact Speed of 0.25kg Pine Cone Falling 20m
- get_rekd
- · Replies 8 ·
Max Force F on Rod Before Slipping: $\mu_s Mg$
- skateza
- · Replies 5 ·
How to accurately represent motion using a vector diagram?
- nblu
- · Replies 4 ·
Electronic Devices byfloyd Problem
- extreme2000
- · Replies 1 ·
Circular Motion: Net Force, Speed & Direction at Top - M,L,g
- logglypop
- · Replies 3 ·
Derivation of angular acceleration
- nicolem10
- · Replies 13 ·
What does it mean to determine the precision, expressed as percent
- gcatal
- · Replies 3 ·
Magnitude of thrust of rocket (q50)
- jack1234
- · Replies 1 ·
What Does the First Law of Thermodynamics Really Imply?
- jack1234
- · Replies 2 ·
How Small Can the Track's Radius Be for Safe Train Speeds?
- Oliviam12
- · Replies 1 ·
Frictional Force and µk problem
- Senseiofj
- · Replies 7 ·
Conservation of momentum for collision(q59)
- jack1234
- · Replies 1 ·
Center of mass of two particle system (q45)
- jack1234
- · Replies 2 ·
Easy Temperature and Kinetic Throey Problem
- spaumn
- · Replies 3 ·
Radioactive decay. Given Ax, Ay and t½ for Y, get t½ for X. Not possible?
- catkin
- · Replies 8 ·
Why does a penny fall into a glass when you flick the card?
- smhaq
- · Replies 1 ·
Momentum in two directions(q35)
- jack1234
- · Replies 6 ·
How Does Beam Center of Gravity Affect Wire Tension and Pulse Timing?
- azila
- · Replies 3 ·
Help with explosion problem q34
- jack1234
- · Replies 5 ·
Temperature and time for 2.5 kW and 3.5 kW heating elements from SWG 16 wire
- blazerman
- · Replies 1 ·
Blocks with light springs (q31)
- jack1234
- · Replies 6 ·
Possibility to shorten the solving procedure (q13)
- jack1234
- · Replies 1 ·
Rotational dynamics and static equilibrium question
- hkstyles
- · Replies 1 ·
PV = nRT: Understanding Pressure Units in Gas Laws
- BuBbLeS01
- · Replies 2 ·
How Does a Pole Vaulter's Center of Gravity Affect Maximum Jump Height?
- clipperdude21
- · Replies 1 ·
Energy Density of a Charged Sphere?
- xxacefirexx
- · Replies 2 ·
Calculating Period of Mars Using Kepler's Law: Appendix C
- Collegestudent5
- · Replies 1 ·
Projectile moving from Earth's surface
- JasonV
- · Replies 1 ·
What Is the Speed of the Rod's Tip When Released from a Horizontal Position?
- skateza
- · Replies 1 ·
What Are the Common Challenges in Problem Solving?
- beachbabe0191
- · Replies 1 ·
Gravitation Point Particles problem
- Collegestudent5
- · Replies 1 ·
Solving for Car's Acceleration: 40kg, 30° Angle, 0.4 μ
- gonzalo12345
- · Replies 12 ·
How to Calculate the Power Output of a Waterfall Generator
- pooface
- · Replies 5 ·
How High Should the Cable Be Anchored for Equilibrium?
- jtulibarri
- · Replies 1 ·
Statics - long rod of linear varying density supported at both ends
- jtulibarri
- · Replies 1 ·