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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Ice cube floating in water with alcohol layer on top
- eri139
- · Replies 5 ·
Coupled oscillators with three springs and kC² = kA kB
- x24759
- · Replies 12 ·
Determine the friction force in a stacked block scenario
- jna
- · Replies 23 ·
A rocket burns out at an altitude h above the Earth's surface
- Benjamin Fogiel
- · Replies 2 ·
Calculate the natural circular frequency ωn of the system
- Alex Katko
- · Replies 10 ·
Finding the movement equation (non intertial system)
- velvetmist
- · Replies 1 ·
Calculating force of water coming out
- Raghav Gupta
- · Replies 11 ·
Finding the mass of a ball and a rod using torque
- Physics Person
- · Replies 8 ·
Circular Constant Acceleration Formula
- CyclicCircle
- · Replies 4 ·
How would I perform this surface integral?
- Boltzman Oscillation
- · Replies 7 ·
Calculating Slingshot Projectile Motion - Finding Initial Velocity
- Physics Person
- · Replies 5 ·
Ball shot from spring: kinetic energy and momentum at release
- Physics Person
- · Replies 6 ·
How Does the Speed of Block B Compare in a Three Mass Atwood Machine?
- octu
- · Replies 1 ·
How to Determine the Resistance R1 in a Mixed Circuit Analysis?
- Logan Batson
- · Replies 8 ·
Kinetic energy of rotation and parallel axis theorem problem
- LuigiAM
- · Replies 11 ·
Speed at the top of an elliptical roller coaster loop
- JessicaHelena
- · Replies 4 ·
Car braking distance using energy conservation
- Taylan
- · Replies 17 ·
Converting air pressure equation from kilometers to meters
- Poetria
- · Replies 7 ·
Power loss in a transmission line
- Cocoleia
- · Replies 4 ·
How to break up kinetic energy for circular motion?
- Nate Stevens
- · Replies 4 ·
Maximum and minimum speeds in a moving cube
- Jenny Physics
- · Replies 20 ·
How Does Hill's Law Affect Lifting Different Weights?
- John3509
- · Replies 1 ·
Average Pressure Radiation on Perfectly Absorbing Surface
- rugerts
- · Replies 6 ·
Determine the period of small oscillations
- Jorgen1224
- · Replies 11 ·
Force needed to move a conducting bar on a wire U-loop in a magnetic field
- cookiemnstr510510
- · Replies 3 ·
Designing a banked circular highway exit with friction
- Yellowkies_3275
- · Replies 9 ·
How Many Angles Maintain 2.00 W/m² Intensity in GPS Satellite Tests?
- Penguin98
- · Replies 2 ·
Intensity of Interference Pattern
- Wombats
- · Replies 7 ·
A few questions concerning voltage, current and resistance
- Volta
- · Replies 5 ·
Equation for sum of torques on a ladder and minimum angle
- Howard Fox
- · Replies 1 ·
How Is Destructive Interference Achieved in a Liquid Film on Glass?
- Penguin98
- · Replies 2 ·
The thickness of glass and the longest wavelength
- Penguin98
- · Replies 1 ·
Why does this solution assume it's a steady-flow system?
- EastWindBreaks
- · Replies 6 ·
The time for pressure to build up
- Setareh7796
- · Replies 4 ·
How do you find the magnitude of acceleration?
- mikelison womack
- · Replies 24 ·
Thermodynamics - water vapour cycle
- michealyap
- · Replies 44 ·
Maximum of exponential function
- Binder12345
- · Replies 9 ·
How to find the aceleración and the rope forcé Fs?
- neon495
- · Replies 2 ·
Calculating surface tension with the Capillary Equation
- Allen Montgomery
- · Replies 29 ·
Atwood machine with variable mass
- titansarus
- · Replies 7 ·
Identifying Multiple Oscillations in a Graph
- GoCubs12
- · Replies 19 ·
Conceptual Issue RE: electric potential difference
- keroberous
- · Replies 1 ·
How can we determine the thrust generated?
- Chris Michos
- · Replies 3 ·
Do we assume the mixing chamber has an outlet?
- EastWindBreaks
- · Replies 3 ·
Projectile motion problem, given the KE at the top of the parabolic arc
- Bilal Rajab Abbasi
- · Replies 7 ·
Why does terminal velocity give graph A, not B?
- Aaryan34532
- · Replies 2 ·
Speed of ball vs Acceleration of the ball?
- Aaryan34532
- · Replies 4 ·
Swinging Tarzan: Solving for Maximum Height & Angle
- physicshelppls
- · Replies 3 ·
Finding velocity in the Hall effect with given dimensions and voltage
- cookiemnstr510510
- · Replies 1 ·
Heat flow in and out of a cabaret
- Dreebs
- · Replies 7 ·
How Many Electrons Pass Through a Capacitor When Discharged?
- HazyMan
- · Replies 31 ·
Why is the Work Zero on a Frictionless Surface?
- Aaryan34532
- · Replies 6 ·
Electric Field due to dipole - solution check
- Ivan Hu
- · Replies 7 ·
How to find the normal force of a car jack lifting a car
- Protium_H1
- · Replies 7 ·
How to find the minimum angular resolution?
- Nat1234123
- · Replies 3 ·
Calculating Dimensions of Titanium Disk Under Load
- WhiteWolf98
- · Replies 6 ·
Block at rest on an inclined surface
- Akash47
- · Replies 36 ·
Energy Efficient AC unit by returning air to the building
- Dreebs
- · Replies 1 ·
What is the Direction of Normal Force in Static Equilibrium on a Ramp?
- Coderhk
- · Replies 5 ·
Induced EMF — generator coil area calculation
- Celso
- · Replies 4 ·
Net work on a 5 kg box pulled up an inclined plane
- Arsana
- · Replies 6 ·
Calculating controller gain in a feedback loop
- Keeeen
- · Replies 14 ·
How to Calculate Tension Forces in a System?
- Akash47
- · Replies 4 ·
How to calculate the drag force?
- EelAnes
- · Replies 7 ·
What do wave crests indicate about a boat's speed?
- Mohammed Sayanvala
- · Replies 7 ·
Flux through a coil due to Self-Inductance
- betamu
- · Replies 6 ·
How Late Did the Man Arrive to Catch the Train?
- Jenny Physics
- · Replies 36 ·
The minimum inclination of a surface
- Quill
- · Replies 6 ·
Finding final temperature in adiabatic compression from 0.1 to 100 MPa
- Another
- · Replies 8 ·
Block on incline connected to hanging mass by pulley
- ANGLA
- · Replies 3 ·
Thermal Energy when Heating and Cooling a Cabaret
- Dreebs
- · Replies 1 ·
Derive the formula for the frequency of a spring
- astroman707
- · Replies 3 ·
What is the Entropy Change When Water Freezes to Ice?
- Another
- · Replies 4 ·
Refraction angle for shooting a dolphin with a dart gun
- Seneka
- · Replies 3 ·
Find the charge q(t) for an LC circuit
- sneakycooky
- · Replies 2 ·
Solving Entropy in Moist Air: No Violation of Law
- Dreebs
- · Replies 2 ·
Does Humidity Affect Entropy in Climate-Controlled Environments?
- Dreebs
- · Replies 10 ·
Heating efficiency of a Heat Pump and a Space Heater
- Dreebs
- · Replies 1 ·
Calculating Solar Mass using peak Doppler shifts
- bbbl67
- · Replies 7 ·
Why cooling air requires electricity and produces heat elsewhere
- Dreebs
- · Replies 5 ·
Heating a Cabaret during the winter
- Dreebs
- · Replies 4 ·
Initial and final power supplied by a person pushing a stone
- Howard Fox
- · Replies 26 ·
Torque and counterclockwise versus clockwise
- Madelin Pierce
- · Replies 2 ·
Block-spring system period on the moon vs Earth
- Jordan Jones
- · Replies 3 ·
Centripetal Force Banked Curves
- nick76342
- · Replies 12 ·
Potential energy of ball thrown upwards
- sp3sp2sp
- · Replies 5 ·
A problem about thin-film interference
- Aurora_b
- · Replies 3 ·
Galaxy number density and intergalactic distance estimation
- fab13
- · Replies 2 ·
What is the formula for calculating the mass of air in a piston?
- Gregs6799
- · Replies 6 ·
Bullet shooting vertically into a block
- christang_1023
- · Replies 9 ·
The refractive index of an unknown liquid
- many questions
- · Replies 1 ·
Finding final speed of falling 200 kg object using kinematics
- Syeda
- · Replies 6 ·
Conservation of Momentum Space Ship Problem
- AnhTran
- · Replies 4 ·
Torque and Angular Momentum - Origin Misconception
- Lost1ne
- · Replies 5 ·
Spring toy fired on flat surface: speed and maximum height
- Syeda
- · Replies 3 ·
Final temperature for two blocks of iron placed in contact
- dwight_v
- · Replies 4 ·
Angular Momentum of a Moving Particle
- Mark Zhu
- · Replies 2 ·
Finding source current in parallel R and LC circuit using phasors
- Shivang kohlii
- · Replies 2 ·
Voltage and electric field in capacitor
- Hiposi
- · Replies 2 ·