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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2 Dimensional Question (rock projected from edge of top of building)
- DLPhysics
- · Replies 4 ·
Skier coasts down hill speed at bottom?
- araspante
- · Replies 2 ·
How to Find the Components of TCA in a 3D Force System?
- camino
- · Replies 1 ·
Understanding Vector Calculations: Clarifying the Role of Quadrants
- tiffanysnsd
- · Replies 2 ·
Finding vs in a Circuit with v2=1000i2 and i2=5 mA
- KillerZ
- · Replies 6 ·
Very Quick Force-Acceleration Graph Question
- bleedblue1234
- · Replies 3 ·
Motion problem with Acceleration and distance
- risk314
- · Replies 1 ·
Two particles, constant acceleration, when do they collide?
- denxnis
- · Replies 5 ·
Magnitude of the Charge on Each Ball
- chunkytuna21
- · Replies 1 ·
3 identical resistorsgive the equivalent resistance of the circuit?
- sernewto
- · Replies 1 ·
Calculating Electric Field and Induced Charge in a Charged Sphere System
- tag16
- · Replies 4 ·
Atwood Machine Related Question
- Jimmy25
- · Replies 3 ·
Working out the Horizontal and Vertical Components
- ViralRiver
- · Replies 29 ·
Solving a Driving Speed Physics Problem in Crowded Freeways
- Dave25
- · Replies 11 ·
How Deep Is the Well If a Rock Takes 2.4 Seconds to Hit the Water?
- puspita
- · Replies 2 ·
Does 0.5 multiply the denominator when substituting into kinematics?
- kramer733
- · Replies 5 ·
Boat velocity relative to ground with current at given angles
- bigmac
- · Replies 4 ·
Could someone check if this is right soon.
- Ion1776
- · Replies 7 ·
How far apart are the two rocks?
- 1irishman
- · Replies 11 ·
Net force decreasing while pointing right: is speed increasing, constant, or decreasing?
- zachmac5
- · Replies 1 ·
Which Angle Should Be Used to Solve a 2D Motion Problem on a Slide?
- demonelite123
- · Replies 4 ·
Thermodynamis of air in a basketball
- amiv4
- · Replies 2 ·
Kinetic Energy of 10kg Object Dropped from 100m
- sernewto
- · Replies 2 ·
Trains approaching constant acceleraton problem
- Loppyfoot
- · Replies 3 ·
What happened to Force in this equation?
- laxboi33
- · Replies 2 ·
Finding time and final velocity
- physfall
- · Replies 1 ·
me with this force problem, Thank you
- Leocardinal
- · Replies 1 ·
What is the magnitude of the frictional force on m1?
- sonutulsiani
- · Replies 1 ·
Net Force on Mass Attached to Stretched Spring
- abclark
- · Replies 1 ·
Basic ideal gas PV=nRT question ( fast )
- Luongo
- · Replies 4 ·
Displacement of angles with different degrees
- Trizz
- · Replies 3 ·
Expansion Work in Combustion Reactions: Liquid Water vs. Water Vapor
- ester10
- · Replies 1 ·
Electric fields - determining k from known data.
- dmullin4
- · Replies 4 ·
Work done by a constant force problem
- mooney82
- · Replies 6 ·
Tension in rope between two blocks with friction
- Caerus
- · Replies 12 ·
Electric Field on the Axis at Certain Point
- chunkytuna21
- · Replies 2 ·
A Conducting Shell around a Conducting Rod
- electricman
- · Replies 1 ·
Is the man's landing point directly below the swing?
- igul222
- · Replies 3 ·
Finding mass of iron to equilibrate with water at specific temperature
- Rhine720
- · Replies 1 ·
Relative velocities, and positions
- d=vt+1/2at^2
- · Replies 4 ·
Finding volume of gravel and water in a 100 mL graduated cylinder
- kevinli
- · Replies 3 ·
Final Temperature Calculation for Water Mixing in Insulated Container
- Rhine720
- · Replies 3 ·
Kinematics in 1D - Model Rocket Question
- crono_
- · Replies 2 ·
Group and phase velocity of 7.0 MeV protons and electrons
- DivGradCurl
- · Replies 1 ·
Uncertainty principle: finding position accuracy from velocity accuracy
- indiepunkband
- · Replies 2 ·
Ratio of recoil speeds with bullet and blank cartridges
- agadag
- · Replies 3 ·
What Is the Radius of the Ion's Path in the Magnetic Field?
- balling12
- · Replies 8 ·
How long does it take the cars to meet?
- 1irishman
- · Replies 3 ·
How Far Does the Trooper Travel to Catch the Speeder?
- nkallivrousis
- · Replies 2 ·
Clock Oscillation: Q Calculation for 0.7 m Pendulum w/ 0.4 kg Bob
- CaptainEvil
- · Replies 1 ·
Calculating Average Velocity: Solving a Train Motion Problem in Physics
- Dan Feerst
- · Replies 3 ·
Relativity_velocity addition and doppler effect
- kkkeleven
- · Replies 2 ·
How to Calculate Vector Components in Different Coordinate Systems?
- gbedenba
- · Replies 2 ·
Understanding Proportional Components in Equations
- physics-chris
- · Replies 2 ·
Conducting slab between two plates
- TwoTruths
- · Replies 7 ·
What is the Magnetic Force on Arm Due to Sodium Ions in a Magnetic Field?
- balling12
- · Replies 23 ·
How Do You Convert Newtons Per Square Meter to Kilograms Per Square Millimeter?
- MalickT
- · Replies 1 ·
Sprinting Question Involving Constant Acceleration
- Emethyst
- · Replies 1 ·
Can electromagnetic waves form standing waves when reflected back along their path?
- MarekS
- · Replies 2 ·
Calculate Velocity & Time of Pencil Dropped from Elevator Moving at 5m/s
- lytien
- · Replies 2 ·
Calculating Time Interval in Two-Dimensional Kinematics
- Flippit
- · Replies 5 ·
Cahnge in potential difference of moving electron
- Kastner86
- · Replies 4 ·
How Does Starting Friction Compare to Moving Friction?
- phongbui
- · Replies 1 ·
Calculating Separated Distance after Coulomb's Law Interaction
- Suy
- · Replies 7 ·
Angular magnification and image size
- Melawrghk
- · Replies 3 ·
How High Was the Girl Above the Water When She Released the Rope?
- New-Blu-Blood
- · Replies 3 ·
What is the Angular Speed of a Rocket Ride?
- salaam
- · Replies 1 ·
Find the total distance travelled.
- 1irishman
- · Replies 7 ·
How Fast Was Kevin Skating Before the Inelastic Collision?
- agadag
- · Replies 1 ·
How Much Power Does a Top Fuel Drag Racer Generate?
- agadag
- · Replies 7 ·
Uniform Circular Motion Hills and Cars
- passphysics
- · Replies 7 ·
Solving Vector Equations w/ A+B+C = 0
- nokitman
- · Replies 16 ·
Physics: Gravitational Force Circular Motion
- passphysics
- · Replies 2 ·
What is the projectile's launch speed?
- Marcelgluch
- · Replies 1 ·
Angular displacement of Earth in 2 days
- salaam
- · Replies 19 ·
Total charge of semi-infinite rod?
- TwoTruths
- · Replies 6 ·
Boxes, cables, and girders (torque and equilibirum problem)
- SageOwl
- · Replies 1 ·
How Do You Convert Between Position/Time and Velocity/Time Graphs?
- DjSiddiqi
- · Replies 4 ·
What is the final velocity of the baseball after being hit by the bat?
- agadag
- · Replies 5 ·
More complex problem involving momentum
- PolyFX
- · Replies 5 ·
Understanding Pulleys in a Frictionless System
- kashiark
- · Replies 7 ·
Calculate work based on resistive force
- agadag
- · Replies 6 ·
Projectile motion of a sailboat
- pierra
- · Replies 2 ·
Rolling ball Free fall question
- DrDanger
- · Replies 1 ·
Change in PE and KE for a 100 kg rock falling 5 m
- jpartdq
- · Replies 1 ·
How large is the normal force? (applying Newtons laws phys )
- natty210
- · Replies 3 ·
Motorcyclist with time-dependent acceleration a = 6.1 - 1.2t
- belltos
- · Replies 6 ·
Calculating Position and Angle of a Particle on a 2D Plane
- RoganSarine
- · Replies 6 ·
Applying Newtons laws (intro to physics problem)
- natty210
- · Replies 2 ·
Which statements about static and kinetic friction are correct?
- Amel
- · Replies 1 ·
Determine original velocity (kinematics)
- Josh930
- · Replies 1 ·
The truck, the box and the slide
- yoyobarn
- · Replies 3 ·
How Do You Calculate Tension in a Hammock's Ropes?
- stressedout09
- · Replies 1 ·
Capacitance after changing plate distances
- exitwound
- · Replies 4 ·
Projection motion on a slope; f angles that will provide the greastest range
- sarah08
- · Replies 6 ·
Centripetal Acceleration and Finding an Angle
- David_W_2012
- · Replies 3 ·
Tensions over a pulley, 3 objects connected with 2 strings
- gmorrill
- · Replies 2 ·
Calculating Energy Output of the Sun on Washington State
- jpartdq
- · Replies 3 ·
Pendulum Experiment - time period and length of string
- physics-chris
- · Replies 1 ·
Gauss's Law Electricity: Electric Field Between 2 Sheets
- ryanmcf10
- · Replies 1 ·