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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Cannon ball launched at 60° to hit helicopter 90 feet away at 70 feet high
- nando94
- · Replies 1 ·
Pressure Gradient in Hydrostatic Equilibrium
- SHISHKABOB
- · Replies 2 ·
Conical Pendulum, find tension, radial force, speed, period, and angular speed
- LibGirl17
- · Replies 1 ·
A pair of perpendicular vectors
- ArcherofScience
- · Replies 3 ·
Trucks travels beneath an airplane .
- ArcherofScience
- · Replies 3 ·
Out of 2 oscillators, which one decays to .1A first?
- cdot
- · Replies 3 ·
Lenz's law for point charge in time varying magnetic field?
- cfitzU2
- · Replies 1 ·
A Person in Free Fall Newton's 2nd Law
- dacabbo
- · Replies 1 ·
Finding Energy Given Mass and Height
- ChEgirl22
- · Replies 7 ·
Elevator Tension With Upward Acceleration
- SigFig
- · Replies 5 ·
Finding the power of L when speed is proportional to L/T
- kathleenhelen
- · Replies 3 ·
Collision with 3 particles and inelastic string
- Perpendicular
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How Does a Fly Impact the Speed of a Moving Car?
- omc1
- · Replies 3 ·
Symbols in the equation relating work, force, and distance moved
- Dr Moriarty
- · Replies 3 ·
Finding electron position when momentarily stopped
- itsgabriella
- · Replies 1 ·
Source of deformation on Spinning oblect
- quantumfoam
- · Replies 1 ·
Calculating acceleration of a plane weighing 9800N
- FaraDazed
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How Is the Mass of Each Hailstone Calculated?
- omc1
- · Replies 3 ·
Rocks falling at the same time and their distance apart
- Glyper
- · Replies 9 ·
Finding the Net Charge of the Earth
- Hypnos_16
- · Replies 5 ·
Current directions in parallel resistor circuit
- Parad0x88
- · Replies 2 ·
Impulse and Momentum, their unit and relationship
- Al-Physya'iy
- · Replies 2 ·
What are the forces at play in Sally's car rescue scenario?
- 7282
- · Replies 1 ·
Finding the angle at which a box starts to slide down a ramp
- joe426
- · Replies 5 ·
Is it possible to solve for kinetic friction without given theta?
- joe426
- · Replies 9 ·
Why Does a Shuttle Need to Be in a Circular Orbit for Apparent Weightlessness?
- assaftolko
- · Replies 2 ·
Minimum speed required for charge collision
- digiholic
- · Replies 5 ·
Difference between F=kx and F=-kx
- AryRezvani
- · Replies 3 ·
Combination of freefalling and constant horizontal movement
- lendav_rott
- · Replies 12 ·
Solving an RC Circuit: Find Time to Reach 65% of Max Value
- Parad0x88
- · Replies 1 ·
How Does Friction Affect Motion in AP Physics Problems?
- dwangus
- · Replies 1 ·
Frictional charging and weight of the body involved
- logearav
- · Replies 1 ·
Solving the Capacitor Charging Problem
- ShEeRMiLiTaNt
- · Replies 1 ·
Power generated by water flowing over a dam
- mlb2358
- · Replies 2 ·
What Is the Net Force on the Middle Mass?
- InertialRef
- · Replies 12 ·
Moment of a Distributed Load on Beam, Scanned work and Diagram.
- EIGHTSIX7
- · Replies 2 ·
Is the Work Done by the Electric Field Positive or Negative?
- tomwilliam2
- · Replies 2 ·
Gravitational force inside the earth
- assaftolko
- · Replies 12 ·
Finding distance/work if only given mass and force?
- medbum
- · Replies 1 ·
How Do You Calculate the Third Force in a System of Connected Masses?
- eddiepi2012
- · Replies 6 ·
Grade 12 Physics, Coefficient of Friction
- JamesNam
- · Replies 3 ·
What Forces Act on the Body During a Chin-Up?
- Lavalamp22
- · Replies 3 ·
How can friction and weight balance at the connector point?
- Peppino
- · Replies 6 ·
When is rocket momentum at maximum as mass decreases?
- wltrtn
- · Replies 1 ·
How Do Electrons Behave Between Charged Parallel Plates?
- skg94
- · Replies 3 ·
Can Two Colliding Photons Create a New Particle?
- budafeet57
- · Replies 11 ·
2d Kinematics Problem Final Velocity
- Succession
- · Replies 4 ·
Solving for Force of B on A in a Newton's Third Law Problem
- Ossim777
- · Replies 1 ·
Small Circular Acceleratioon Question
- LadyMario
- · Replies 7 ·
Force on peg preventing a uniform ladder from slipping
- Ishida52134
- · Replies 4 ·
How to Calculate Moment of Inertia for a Solid Disk with Central Hole
- bcalkins
- · Replies 1 ·
Energy, and the conservation of it.
- SkySixx
- · Replies 1 ·
Projectile Velocity Calculation with Given Angle and Direction
- proness26
- · Replies 1 ·
Free-fall kinematics on a plane: Displacement from Window to Ground?
- Veras
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How Much Work is Done by the Rope in Displacing a 115kg Hanging Mail Bag?
- Toranc3
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Finding average/final velocity and acceleration.
- HelloImAsh
- · Replies 2 ·
Gravitational Torque about point?
- sona1177
- · Replies 18 ·
Why do we move back when a train accelerates?
- Smileyxx
- · Replies 10 ·
General Relativity gravitational redshift
- clandarkfire
- · Replies 1 ·
Force needed to push 100-lb box up 20° hill at constant speed
- wmcbain
- · Replies 9 ·
At what velocity does the cannonball leaves the cannon?
- Conquest Ace
- · Replies 2 ·
Solve Work on Inclined Plane for m1, a, h, m2, uk
- oreosama
- · Replies 4 ·
Using the Loop rule to find potential Difference
- MasterVivi
- · Replies 3 ·
Maximum speed before Rope Breaks
- proness26
- · Replies 2 ·
Current between concentric spherical conductors with insulator
- cloud9
- · Replies 1 ·
Coefficient of friction needed for barrel ride with 15 m diameter
- helium-4
- · Replies 3 ·
How can we show the equivalence between Biot-Savart law and Ampere's law?
- theName()
- · Replies 13 ·
1 Dimentional Schrodinger equation
- budafeet57
- · Replies 1 ·
Charge distribution on a conducting spherical shell
- NotCarlSagan
- · Replies 2 ·
Throwing a rock - simple mechanics problem
- Glyper
- · Replies 2 ·
Calculating Minimum Distance for Safe Overtaking in a Kinematics Problem
- Scrooble
- · Replies 15 ·
Introductory Bohrs Model Problem and I'm Lost
- zoiberg137
- · Replies 5 ·
What Is the Pressure Inside a Water Cannon Shooting at 25m/s?
- ChickysPusss
- · Replies 2 ·
Solving 2.52 Elevator Problem how to calculate time of a complete trip?
- crystaldreams
- · Replies 1 ·
Projectile motion of half a parabola
- weesieman
- · Replies 6 ·
Concept of Distance and time. (basic question but no answer)
- nabet94
- · Replies 1 ·
Coulomb's Law Placement of Charges in Equilibrium
- JSGandora
- · Replies 1 ·
Measuring obstacle size in a parallel circuit of different lengths of wire
- utd223
- · Replies 2 ·
Problems pertaining to centripetal force
- Gigantron
- · Replies 10 ·
Relating flow rate to height in a cylinder
- TsuinRyu
- · Replies 9 ·
1 string, 2 balls, motion problem
- thoradicus
- · Replies 7 ·
Thermodynamics - maximalization of temperature
- lakmus
- · Replies 2 ·
Potential Energy - Work Done etc
- a1m2p3m4
- · Replies 1 ·
SHM with f=10 Hz, x=0.25 m and v=0.1 m/s at t=0
- Eats Dirt
- · Replies 6 ·
Finding speed and time for dropped object from 160m
- FaraDazed
- · Replies 7 ·
Inclined Plane Problem with change of COM
- DabaDuBa
- · Replies 3 ·
Hydraulic jack with lever: lifting mass calculation
- AviralGoel15
- · Replies 4 ·
How Do You Calculate Missile Impact in Kinematics Problems?
- Watthelol
- · Replies 2 ·
Ideal current source parallel connected with ideal Voltage Source and vice versa
- NukeEngineer
- · Replies 6 ·
Moment of inertia and radius of gyration for a leg
- lupinpooter
- · Replies 4 ·
Isobaric process experiment with plastic tube and hot water
- wg1337
- · Replies 4 ·
Coservation of angular momentum
- shivam jain
- · Replies 4 ·
Coefficient of static friction for picture pressed against wall
- yunny
- · Replies 2 ·
Water draining from conical tank differential equation
- Hirohito
- · Replies 1 ·
3-D vector into its component form
- wahaj
- · Replies 5 ·
How Long Does It Take a Dropped Object to Hit the Ground from a Rising Balloon?
- physics kiddy
- · Replies 3 ·
Finding Force Given Potential Energy
- CallMeShady
- · Replies 9 ·
Banking angle for a car on a curved road without friction
- Lolagoeslala
- · Replies 2 ·
Ball thrown at 15 m/s to hit wall 16 m away at peak height
- MrWarlock616
- · Replies 7 ·