Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Suitcase in elevator - Find pressure on the floor
- IAmSparticus
- · Replies 1 ·
Calculate Earth's Gravitational Field at the Moon
- O0ZeRo00
- · Replies 1 ·
Jumping from Roof: Find Velocity & Force Exerted
- PearlyD
- · Replies 7 ·
How Far Can a Car Travel on 1 kg of Hydrogen at 60 mph?
- jesricha
- · Replies 1 ·
How Do You Calculate Angular Distance and Displacement in Biomechanics?
- nsxviper
- · Replies 1 ·
Time to melt 2 kg of lead in a kiln at 617.5°F
- itr
- · Replies 9 ·
Box floating in a liquid and undergoing simple harmonic motion
- lower8
- · Replies 3 ·
What is the change in work and heat in this thermodynamic process?
- casebj11
- · Replies 4 ·
What is the solution to a block sliding on an incline connected to a spring?
- matt62010
- · Replies 8 ·
How Is Angular Frequency Calculated for a Plank Supported by a Spring?
- kkred
- · Replies 1 ·
A bullet and a block (Momentum)
- Chandasouk
- · Replies 1 ·
Beaker of water and bouyancy in a sink
- Physics197
- · Replies 2 ·
Why does the charge uniformly distributed on the surface of the sphere only?
- cdymdcool
- · Replies 2 ·
What is the Total Energy of a Rolling Sphere on a Sloped Floor?
- Extremist223
- · Replies 2 ·
Find acceleration of a Block within a simply pulley system.
- cocoon
- · Replies 3 ·
What is the Minimum Tangential Velocity to Land on $1.00 on Wheel of Fortune?
- Extremist223
- · Replies 2 ·
Calculate Torque to Accelerate .22kg Disk to 1500rpm in 5s
- guru
- · Replies 4 ·
Can colliding electrons and protons form neutrons or atoms?
- anuraganimax
- · Replies 2 ·
Asteroid impact effect on Earth's rotation and day length
- scoldham
- · Replies 12 ·
Derived equation initial speed
- 7randomapples
- · Replies 6 ·
Simple velocity/acceleration/distance equation-but is mastering physics wrong?
- marewrath
- · Replies 7 ·
Solve Capacitor Circuit: Is My Method Correct?
- 1st1
- · Replies 5 ·
Acceleration of electron in between charged plates
- jawad khan
- · Replies 5 ·
Calculating Mass of Meteors After Impact
- DerekP
- · Replies 3 ·
How Do Capacitors Behave and Function in Electrical Circuits?
- OJ-Hick
- · Replies 1 ·
Tangential and angular velocity and acceleration
- Panda040
- · Replies 1 ·
Finding trebuchet projectile velocity from counterweight mass and distance
- steve092
- · Replies 3 ·
Angular velocity vs normal velocity
- DominicF
- · Replies 2 ·
What the heck is the heat equation?
- exparrot
- · Replies 1 ·
Why Do Waves Affect Objects Like Floating Bottles?
- ap_cycles
- · Replies 2 ·
Finding angular velocity based on x vs t graph
- cuttooth
- · Replies 1 ·
Solving Vector Problems: Finding an Airplane's Ground Speed and Direction
- O0ZeRo00
- · Replies 11 ·
Do cylinders with equal rotational energy have the same tangential velocity?
- hatephysics
- · Replies 4 ·
Method of undetermined coefficients for 2x" + 36x = sin(wt)
- lordy12
- · Replies 1 ·
Basic Momentum and Energy and time
- Ronaldo21
- · Replies 6 ·
Cart rolling down a ramp and flying off a table
- nicholz
- · Replies 1 ·
Do Two Glued Metal Bars Bend Identically Due to Identical Thermal Coefficients?
- cuttooth
- · Replies 1 ·
Moving a 250kg Elephant with 425N Force
- physicshard22
- · Replies 5 ·
Solving for Normal Force in a 1k kg Car on a Dip
- briiannnaa04
- · Replies 3 ·
How Far Does the Block Move on an Inclined Plane?
- joemama69
- · Replies 16 ·
Solving for Total Work: A Monatomic Gas at 27degrees C
- ManuelGR
- · Replies 1 ·
Distance where gravitational force is 11% of surface value
- physicshard22
- · Replies 13 ·
Ice melting when 20 g steam at 100°C is added
- lilmul123
- · Replies 2 ·
How Do You Calculate the Final Speed of a Block on an Inclined Plane?
- metrocard
- · Replies 5 ·
Finding constant net torque from angular velocity and rotation angle
- zelli
- · Replies 2 ·
Explain why speed of sound changes in different media.
- chown
- · Replies 16 ·
[Linear momentum] When to use which equation.
- hiuting
- · Replies 4 ·
Is Heat Flowing Into or Out of the System?
- Mr. Goosemahn
- · Replies 1 ·
Find Coefficient of Friction for Firefighter on Ladder
- boomclapslap
- · Replies 3 ·
Pressure/Temp/Volume question
- itr
- · Replies 2 ·
Why Is My Damped Oscillator Experiment So Challenging?
- Darkplayer01
- · Replies 1 ·
Question involving spring constant
- Phenom66
- · Replies 1 ·
Force needed to jump 0.80 m high
- PearlyD
- · Replies 1 ·
Finding F3 when F1 and F2 act with a 20 N resultant
- teh81
- · Replies 2 ·
Find Quartz Oscillator Disk Thickness for 88.0 MHz Frequency
- ohaithar
- · Replies 2 ·
Can Potential Energy Have Zero Value?
- phykeep
- · Replies 2 ·
Find New Density of Heated Cube
- robertsa
- · Replies 4 ·
Calculating the Initial Vertical Acceleration of a Saturn V Rocket
- PearlyD
- · Replies 4 ·
Mechanical advantage, acceleration, work, power
- DerekP
- · Replies 8 ·
Why Is IMA Lower Than AMA in Lever Systems?
- SHHSPhysics
- · Replies 1 ·
Alpha, Beta, Gamma , neutron ray, which one is harmful?
- Nope
- · Replies 6 ·
Electric Field due to Continuous Line Charge
- darkpsi
- · Replies 2 ·
How Do You Calculate Work and Angle in Vector Problems?
- od943
- · Replies 1 ·
Calculating Magnetic Field Strength from Electron Path Curvature
- Mspike6
- · Replies 2 ·
Diode uncertainty calculation with zero current measurements
- DanDavies
- · Replies 5 ·
Calculating the Angle of a Suspended Mass
- HardestPart
- · Replies 9 ·
Magnetic Field and Poynting Flux in a Charging Capacitor
- dmaling1
- · Replies 2 ·
How Do You Derive the Tsiolkovsky Rocket Equation?
- jenettezone
- · Replies 2 ·
Why does ping pong ball rebound height curve smoothly if terminal velocity causes it?
- thyqwerty
- · Replies 8 ·
Calculating Work and Input Force for a Hydraulic Lift
- jaco9115
- · Replies 4 ·
Ball hitting block, elastic collision
- geauxKTM
- · Replies 1 ·
Trasverse wave wavelenght and velocity problem
- mmoadi
- · Replies 1 ·
Fluids - Pascal's Principle / Negative vs Positive
- crono_
- · Replies 2 ·
Calculating the time of an falling object provding with only speed and weight
- nikkkk
- · Replies 1 ·
Where to find practice exercises for drawing force vectors
- carrera901
- · Replies 1 ·
Calculating Density and Viscosity of Oil Using Ball Drop Experiment
- mmoadi
- · Replies 7 ·
Interference of rock music at a concert
- Bryon
- · Replies 2 ·
Is Mechanical Energy Conserved During Swinging at a Lake Hangout?"
- geauxKTM
- · Replies 3 ·
Newton's Cradle, Simple Harmonic Motion
- godtripp
- · Replies 1 ·
Thermodynamics concept question
- itr
- · Replies 4 ·
Centripetal acceleration for 0.5 kg mass moving at 0.1 m/s
- pinnacleprouk
- · Replies 1 ·
Rotational Motion - I have the answer but I don't know how to get there
- jbcaviness
- · Replies 1 ·
Calculate DeltaR RMS for Air Molecule After 5s
- fball558
- · Replies 2 ·
Calculating Support Forces on a Rigid Beam with Distributed Loads
- ice2morrow
- · Replies 5 ·
Calculate the electric field at a given point
- fluidistic
- · Replies 9 ·
How Does a Frictionless Piston Behave in a Vacuum-Sealed Cylinder?
- itr
- · Replies 1 ·
Solving 10 -2x = 90 - x: Find x Value
- Gringo123
- · Replies 1 ·
Rotating object angular velocity question
- pinnacleprouk
- · Replies 7 ·
How does the recoil of the nucleus affect the speed of the alpha particle?
- thebomb
- · Replies 18 ·
How Does a Bullet's Momentum Determine the Force Stopping It in a Tree Trunk?
- Ronaldo21
- · Replies 1 ·
Gravity earth's radius question
- physicshard22
- · Replies 1 ·
Can Relative Velocity Determine Bat's Speed Without Doppler Effect?
- mikhailpavel
- · Replies 3 ·
Mass of stars companion from radial velocity
- ChrisBaker8
- · Replies 9 ·
Projectiles and conservation of energy (water slide problem)
- wmmk
- · Replies 3 ·
Conserved Energy vs. Used Energy
- 1irishman
- · Replies 4 ·
Force between two current-carrying wires in a circuit
- dtchannell88
- · Replies 1 ·
Calculating work to overcome drag?
- sirfinklstin
- · Replies 9 ·
Calculating Momentum and Velocity in a Head-On Car Collision
- Jimbo113453
- · Replies 4 ·
Just got owned on this exam question
- anotherghost
- · Replies 2 ·