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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Solve Beer Mug Throwing Speed for 2m - Energy Conservation
- domagoj412
- · Replies 6 ·
Static Equilibrium in Fluids: Pressure and Depth
- smichels
- · Replies 4 ·
How Is Torque Calculated in Rotational Motion Problems?
- odie5533
- · Replies 8 ·
Completely Inelastic Collision: A block and a block with a spring
- brendan3eb
- · Replies 2 ·
What Is the Correct Frequency of the Tuning Fork Based on Standing Waves?
- y_chen
- · Replies 6 ·
Where Does the Block Come to Rest After Launching from a Spring?
- jesuslovesu
- · Replies 2 ·
Bullet fired on Earth vs Moon: flight time, range and impact velocity
- dominus96
- · Replies 5 ·
Finding where to see a lamp's reflection in a water-covered mirror
- pardesi
- · Replies 8 ·
Calculating Electric Potential Energy of Hydrogen Atom in Bohr Model
- GreenLantern674
- · Replies 3 ·
Why is the Hooke's law graph increasing instead of decreasing?
- astro_kat
- · Replies 7 ·
I with a static fluids question
- islanderfan
- · Replies 4 ·
Tension in a rope between two falling blocks of equal mass
- madchemist
- · Replies 7 ·
Can a 1220 kg cylindrical object have zero moment of inertia in outer space?
- madchemist
- · Replies 7 ·
I am going to lose it I need a hint
- Roger Wilco
- · Replies 10 ·
Nuclear Power Plant: 1GW/Year CO2 Emissions
- VincentX
- · Replies 4 ·
What is the Orbital Period of Jupiter in Earth Years?
- petern
- · Replies 4 ·
How Close Can You Safely Study a Black Hole?
- juliusqueezer
- · Replies 3 ·
Solve Speed of Car Given 36% Horn Drop: 340m/s Sound Speed
- luna02525
- · Replies 2 ·
Center of mass / momentum chain
- mattyisphtty
- · Replies 5 ·
How Is Heat Absorbed by Gas in a Pressure and Volume Increase Process?
- sun
- · Replies 1 ·
Why is the upper magnet in the Stern-Gerlach experiment wedge-shaped?
- ehrenfest
- · Replies 4 ·
Order of Operations: Guitar String Frequency
- Spookie71
- · Replies 3 ·
How Do You Calculate Temperature Difference Using a Thermocouple?
- Puny
- · Replies 1 ·
Calculating max robot speed on a ramp
- grahamspam
- · Replies 1 ·
The actual meaning of delta in these circumstances
- Spookie71
- · Replies 2 ·
Doppler shift above speed of sound.
- Cypripedium
- · Replies 2 ·
Confusing Pulley + Friction question
- tbomber
- · Replies 3 ·
Determining the Size of a Ship's Hole with 700gpm Flow and 33.66ft Water Depth
- jleoonard
- · Replies 4 ·
Finding the emf and internal resistance of a cell
- dtwazere
- · Replies 1 ·
How Does Hooke's Law Apply on the Moon?
- Deetle
- · Replies 6 ·
Moving cart that rotates when acclerating
- travisr34
- · Replies 1 ·
Calculate Electrostatic Force Between Two Plates
- ak_47_boy
- · Replies 1 ·
Uncertainty about answer for Conservation of Momentum Problem
- zozajiek
- · Replies 4 ·
How Would Space Travel Change Without the Slingshot Effect?
- ultimateroxas
- · Replies 1 ·
Gravitational Effects of 2 Bodies
- petern
- · Replies 2 ·
I need to find the coefficient of the kinetic force and the kinetic force?
- rainingurl
- · Replies 1 ·
Total energy of 1.3 kg mass oscillating on a 410 N/m spring
- chaotixmonjuish
- · Replies 1 ·
How Do You Derive Kepler's Third Law Using Newton's Law of Gravitation?
- petern
- · Replies 7 ·
Energy/Momentum related question
- daewoo
- · Replies 4 ·
Rotational Mechanics: Calculating Torque as a Function of Time
- PoofyHair
- · Replies 3 ·
Why Is the Normal Force Excluded in Beam Static Equilibrium Calculations?
- cardinalboy
- · Replies 5 ·
What is the total work done against the spring force?
- Lyphta
- · Replies 1 ·
How Is Force Calculated to Maintain Position on an Inclined Wedge?
- amajorflaw
- · Replies 6 ·
Calculating Slit Width and Angular Deflection for 630nm and 450nm Light
- RachelSSS
- · Replies 1 ·
Final Temp of Tea After Pour into Glass Cup
- shayur goorah
- · Replies 3 ·
Finding forces and acceleration for sled, ball, parachutist, and car-trailer system
- ArthurYan
- · Replies 1 ·
Simple Harmonic Motion of an earthquake
- veloix
- · Replies 4 ·
Why are the Actual G Forces Experienced by Astronauts Less than Predicted?
- ultimateroxas
- · Replies 3 ·
Push up weight distrubtion problem
- Nefarious
- · Replies 1 ·
Find the magnitude of the force exerted on the stick by the bowling ball
- Jacque77
- · Replies 3 ·
Derivation of the wave dispersion equation
- freja
- · Replies 1 ·
Circular motion, the planet, and gravity
- monkey13579
- · Replies 1 ·
Elastic collisions and spring compression in block collision problems
- mrbetty16
- · Replies 1 ·
Physics hanging around the Earth
- issisoccer10
- · Replies 1 ·
Spacetime interval with Alpha and Beta supernovae
- 2RIP
- · Replies 1 ·
Angle between initial directions in equal mass inelastic collision
- SJEllmann
- · Replies 7 ·
Is Momentum Conserved in Cart Collisions Regardless of Mass and Interaction?
- bhagwatr
- · Replies 1 ·
How is momentum conserved in a two-dimensional collision?
- Dinkydau444
- · Replies 2 ·
Minimum mirror size for seeing full body reflection
- Icheb
- · Replies 1 ·
What Is the Speed of the 0.300 kg Puck After Collision?
- _mae
- · Replies 1 ·
What Does the Slope Represent in a Voltage vs. Distance Graph?
- LadiesMan
- · Replies 2 ·
Three elastic collision problems: speed amplifier, deamplifier, and spring compression
- mrbetty16
- · Replies 1 ·
Doppler Effect (moving source, moving listener)
- GoldShadow
- · Replies 2 ·
Finding the Minimum Current for Magnetic Force to Equal Wire Weight
- Turbo Math
- · Replies 2 ·
Solve for n: 119 = n^2 - 3n / 2
- get_rekd
- · Replies 2 ·
Atwood machine with 10 kg and 4 kg masses and friction
- Cowtipper
- · Replies 5 ·
Finding angular frequency for two springs attached to a block
- zinedine_88
- · Replies 1 ·
Resistance and ohm's law with light bulb
- trustabdy
- · Replies 2 ·
Linear acceleration and a grinding wheel
- MIA6
- · Replies 5 ·
Solving Simple Harmonics: Return Time After Collision
- kevinr
- · Replies 4 ·
Thermodynamics/Entropy Question
- turgrid
- · Replies 1 ·
Heat and adiabatic processes perhaps
- map7s
- · Replies 2 ·
Calculating Tension of Rope with Parallel Forces
- schang
- · Replies 2 ·
How Far Must an Astronaut Be Above Earth to Weigh 0.01 of His Earth Weight?
- Vipul
- · Replies 5 ·
What is the speed of the spring gun after the ball comes to rest
- Destrio
- · Replies 2 ·
Net Gravitational Force Problem
- GreenLantern674
- · Replies 5 ·
Wavelength - how far away did earthquake occur
- mathcrzy
- · Replies 5 ·
me with these Vector problems?
- GalaxyFireworks
- · Replies 8 ·
Rotational Kinematics of a Particle
- Destrio
- · Replies 4 ·
Kinetic Energy/Velocity problem (not sure what I'm doing wrong)
- KatieLynn
- · Replies 3 ·
Five vector problems with forces on cows
- GalaxyFireworks
- · Replies 1 ·
Calculating Rotational Inertia: Two Masses and Two Rods
- Destrio
- · Replies 5 ·
Drawing a Free Body Diagram for Drainpipe in Forklift
- Specimen
- · Replies 1 ·
Kinetic and heat energy problem
- temaire
- · Replies 7 ·
Three Difficult Materials Questions (check my answers)
- DizzyDoo
- · Replies 1 ·
Solving a Simple Kinematics Problem: When Will Three Turtles Collide?
- Leotav
- · Replies 3 ·
Zero Launch Angle: Vox and Angle
- SteveThePharmer
- · Replies 1 ·
Collision and conservation of P
- yoleven
- · Replies 2 ·
Hanging Cable (Projectile Motion?)
- TopCat
- · Replies 4 ·
Girl walking on plank: finding velocities relative to ice surface
- Taren
- · Replies 2 ·
Voltage drops - i don't understand
- debwaldy
- · Replies 1 ·
How Is Work Done by Gas Calculated in a Thermodynamic System?
- LostTexan07
- · Replies 1 ·
Mass pushed by horizontal force at constant speed on an incline
- Destrio
- · Replies 4 ·
Can Aluminum at 90 Degrees Celsius Melt 10 Grams of Ice?
- BlueSkyy
- · Replies 1 ·
Calculating Buoyancy in Oil/Water: Solving for Height of Cylinder
- ncote
- · Replies 3 ·
What is the Force on a Wall from a Horizontal Water Jet?
- gidra
- · Replies 5 ·
Why is current not considered to be a vector?
- PFStudent
- · Replies 2 ·
Calculating Recoil Velocity: Female Character in Diamonds Are Forever
- pdubb
- · Replies 2 ·
What is the length of the vibrating section of the violin string?
- Deviatorz
- · Replies 4 ·
What Bad Physics and Laws Are Broken in Jurassic Park III?
- zeyad
- · Replies 1 ·