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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The change in kinetic energy if distance is constant but angle of force changes.
- ha9981
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What is the Resultant Force When Sitting and Other Physics Queries?
- future_vet
- · Replies 11 ·
Does a current-carrying wire's own magnetic field affect the force on it?
- Kruum
- · Replies 2 ·
Young's modulus from steel wire load and extension data
- ayaanle
- · Replies 1 ·
Centripetal and Tangential Acceleration of drill bit
- invadertak
- · Replies 1 ·
Two blocks colliding at different relative speeds before and after
- jemerlia
- · Replies 1 ·
Formula for the velocity of the centripetal force
- rahmatkat
- · Replies 3 ·
Looking at diffraction gratings .
- qazxsw11111
- · Replies 1 ·
Boat coasting, seagull dropping shell, police car pursuit kinematics
- w0lv3121n3
- · Replies 3 ·
Circuit: current value in generator
- saritche
- · Replies 1 ·
Conceptual Doppler Effect question
- jgens
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Angular frequency, phase velocity, and period
- jakey
- · Replies 2 ·
Doppler Effect ambulance speed Question
- Sheen91
- · Replies 2 ·
Solving for p: Finding Distance from Convex Lens
- Nano
- · Replies 5 ·
What is the drift speed of Na+ ions while the current flows?
- Dopefish1337
- · Replies 3 ·
Can a Hunter Resolve Two Squirrels 10 cm Apart at 1.6 km Without a Scope?
- DMOC
- · Replies 3 ·
Relationship between Temperature and Resistance in a Series Circuit
- roxychc43
- · Replies 2 ·
Find the force on the cable, beam, and pole
- Joe91090
- · Replies 18 ·
Finding potential difference to accelerate the ion
- jheld
- · Replies 1 ·
Discharging a capacitor through a resistor
- callawee
- · Replies 2 ·
Newton's Laws Practice Problem: Finding Force on Book During Braking
- mp1019
- · Replies 2 ·
Newton III problem involving two objects in space
- angotta
- · Replies 5 ·
How to analyze series-parallel combination circuits
- shemer77
- · Replies 2 ·
Motorcycle Rotational problems
- hellothere123
- · Replies 6 ·
Electrostatics - Compute the electric charge
- noobie!
- · Replies 2 ·
Which resistor determines RC time constant when capacitor is in parallel with R2?
- phrygian
- · Replies 6 ·
Solving Physics Homework: Throwing a Stone - 15yo Student, Aus
- juliany
- · Replies 4 ·
Rotational motion and angular displacement
- invadertak
- · Replies 2 ·
Dielectrics influence on series/parallel
- Dopefish1337
- · Replies 8 ·
Is Weight the Same as Force in Physics?
- DrDanger
- · Replies 6 ·
How Long Does a Dropped Package Take to Reach the Ground from a Hot Air Balloon?
- AlKaiser
- · Replies 8 ·
How Does Newton's Second Law Apply on an Inclined Plane?
- flatline4520
- · Replies 3 ·
Conservation of Angular Momentum and Uniform Rod
- peaceandlove
- · Replies 1 ·
Electric field inside hollow dielectric field
- -EquinoX-
- · Replies 1 ·
Torque on a charged particle moving in a circle in a uniform B field
- ganondorf29
- · Replies 1 ·
Complex apparent and real depth problemm
- pistonsfan321
- · Replies 1 ·
How Do You Calculate Projectile Motion with Forces in Multiple Directions?
- ch2kb0x
- · Replies 1 ·
Potential difference between sphere and shell with added charge
- hellboydvd
- · Replies 1 ·
Rolling Pebbles & Wheels: Analyzing Motion
- anand
- · Replies 3 ·
What is the width of a wall seen from an opposing mirror?
- Aneadra
- · Replies 2 ·
How Long Did the Runner Accelerate to Finish the 1500m Race on Time?
- DallasStar
- · Replies 11 ·
Simple Harmonic Motion - oscillation b/w 2 stretched springs
- theneedtoknow
- · Replies 1 ·
Mass falling on a vertical spring
- bikerboi92
- · Replies 2 ·
Finding image position from concave mirror with 1.4 m radius
- Aneadra
- · Replies 2 ·
Finding Tbeat for 2 waves of periods T1 and T2 using oscilloscope
- -EquinoX-
- · Replies 29 ·
Angular acceleration of a cylinder with four applied forces
- shadowice
- · Replies 2 ·
Specific Heat Capacity? Calorimeter
- Daniel52947
- · Replies 5 ·
Finding induced emf of solenoid
- number14
- · Replies 7 ·
Magnetic field surrounding a long, straight wire.
- einsteinoid
- · Replies 5 ·
Static vs. Kinetic Friction: Why Does It Matter for Energy Conservation?
- nivek114
- · Replies 3 ·
Finding mass per unit length of a string
- whiterobot
- · Replies 3 ·
How Long Until a Pulsar Stops Rotating?
- shadowice
- · Replies 1 ·
Electric field density at the surface of a current carring wire
- cuttlefish
- · Replies 2 ·
Kinetic Friction with an upward shove
- lauriecherie
- · Replies 1 ·
Collisions and the Speed of Two Pucks
- bowbe
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Apparent Frequency (Doppler) Problem
- wallace13
- · Replies 4 ·
Flux through a loop of wire in a magnetic field.
- einsteinoid
- · Replies 3 ·
Sun-Earth System given center of mass
- disque
- · Replies 6 ·
How Do You Calculate Wave Properties and Tension in a String?
- tymartin
- · Replies 1 ·
Nichrome Resistor and Copper wire
- hime
- · Replies 1 ·
Potential Energy for magnetic dipole
- richard7893
- · Replies 1 ·
Calculating the Mass of a 500N Barbell Lifted 2.2m from the Floor
- nlsed
- · Replies 1 ·
How Does Pressure Affect Seawater Volume and Density in the Mariana Trench?
- physics_geek
- · Replies 3 ·
Change in Kinetic Energy as Block moves up Incline and starts from rest
- cll123
- · Replies 1 ·
Potential difference between two points in uniform electric field
- KillerZ
- · Replies 2 ·
What mass would be required to overcome static friction?
- Amber3046
- · Replies 2 ·
Free body diagram for three strings in equilibrium
- okgo
- · Replies 1 ·
How tall is the shadow of cardboard in front of a point light source?
- dblader
- · Replies 8 ·
What Determines the Position of Antinodes in Standing Waves?
- Nubs
- · Replies 1 ·
Momentum conservation question (answer provided)
- physics120
- · Replies 4 ·
Calculating Weight on an Incline
- Nick Leeson
- · Replies 3 ·
Calculating Potential Difference for Capacitor Heating of Water
- xswtxoj
- · Replies 7 ·
How far a block travels after sliding down a ramp
- Daedris
- · Replies 16 ·
What is the velocity of the thrown ball?
- physicsnewb7
- · Replies 4 ·
Accelerating Proton: Calculating Speed and Kinetic Energy
- wadesweatt
- · Replies 8 ·
Linear momentum and relative velocity
- 22steve
- · Replies 2 ·
Thermodynamics Entropy question
- physstudent1
- · Replies 6 ·
Has the Ball Passed Its Highest Point Based on Velocity Vector?
- ProRip
- · Replies 1 ·
How Do Forces and Torque Balance in a Ladder Problem with a Firefighter?
- vipertongn
- · Replies 1 ·
U-tube Mercury: Pressure and Height Calculations with Pumped Right Side
- completenoob
- · Replies 13 ·
Physics Extended Essay Topic Question
- protossadv
- · Replies 5 ·
Guass's law nonconducting plates
- jimbo71
- · Replies 3 ·
Motion problem - Shock drop ride
- 09jk
- · Replies 1 ·
Find Trip Time and Min Distance in a Pendulum Motion
- williamluffy
- · Replies 2 ·
Kinetic energy (Force and d(x))
- nlsed
- · Replies 1 ·
What is the acceleration of a mass on a moving wedge?
- bigevil
- · Replies 2 ·
What is the Approximate Torque on a Baseball Bat Held Horizontally?
- disque
- · Replies 1 ·
How Do These Equations Model Projectile Motion?
- Carl_M
- · Replies 3 ·
What Is the Minimum Force Needed to Move a Box on a Frictionless Board?
- lvelar
- · Replies 3 ·
How far does the starship move pulling a shuttlecraft with a tractor beam?
- lvelar
- · Replies 3 ·
Radial component of linear acceleration
- Hotsuma
- · Replies 6 ·
Newton's 3rd law and its affect
- icecomet
- · Replies 2 ·
Circuits and resistors and batteries, oh my (a.k.a. I know nothing)
- rubytuesday
- · Replies 4 ·
Why can a metal emit 0.1 eV photons when only 0.3, 0.4, 0.7 eV are absorbed?
- fball558
- · Replies 7 ·
Electric Charges: Calculating Charge q for Ink Drops
- j88k
- · Replies 2 ·
Pulley/Rotational Torque Problem
- mastermike707
- · Replies 3 ·
What Is the Net Torque on a Uniform Beam?
- Hotsuma
- · Replies 2 ·
Calculating Minimum Horsepower for Moving a Mass at a Given Speed
- RileyAllen
- · Replies 3 ·
What is the coefficient of kinetic friction for a wood block on a spring?
- RileyAllen
- · Replies 2 ·