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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How do you convert temperature differences between Celsius and Kelvin?
- lizlyn
- · Replies 2 ·
Need Notes for Class 11 NCERT Book [Physics]
- christiano
- · Replies 3 ·
Faraday's law and perpetual motion
- Princess19
- · Replies 5 ·
Coaxial cable problem, electric field strength?
- roccofitz
- · Replies 6 ·
Baseball problem Impulse-Momentum
- Anarion
- · Replies 4 ·
How to find Uab and Ucd in this circuit
- dado
- · Replies 4 ·
Solve 3 Optic Problems in 2 Days
- djanisf
- · Replies 4 ·
Finding wave speed and refraction angle for 75 Hz source
- vividcolours
- · Replies 1 ·
Angular Velocity and Angular Frequency
- zhaos
- · Replies 1 ·
The sum of torques is not the sum of torques?
- flyingpig
- · Replies 8 ·
Magnitude of momentum of electrons
- sanalsprasad
- · Replies 1 ·
Where Should Charge C Be Placed to Achieve Zero Net Force?
- I Like Pi
- · Replies 18 ·
AC generator in an LRC circuit: rms voltage, maximum current, phase difference
- popo902
- · Replies 4 ·
How is Work Potential Destroyed in Heat Transfer Between Reservoirs?
- mullzer
- · Replies 18 ·
Which presses surface by higher force
- vissh
- · Replies 2 ·
Calculating the explosive yield of an atomic bomb
- hoelmkjaer
- · Replies 3 ·
Sound and kinematic problem solving
- anna sung
- · Replies 8 ·
Standing waves - which instruments are closed-closed, open-open, or open-closed?
- ben.tien
- · Replies 2 ·
Working out maximum height reached *thrown object*
- paulm1285
- · Replies 7 ·
How Do You Calculate Vertical Motion and Acceleration?
- aldeemativo
- · Replies 8 ·
How high will a ball thrown with an initial speed of 80 ft/sec be at 3 seconds?
- aldeemativo
- · Replies 1 ·
Semicircular ring falling through a Magnetic Field
- zorro
- · Replies 43 ·
Torque and angular acceleration of a grindstone
- BoldKnight399
- · Replies 7 ·
Dose of radiation from the neutron source
- DB51
- · Replies 1 ·
How Does Force Direction Affect Work Done?
- Tdollarhyde
- · Replies 3 ·
Constant Acceleration: A Special Case
- Shahin_2010
- · Replies 3 ·
Graph of a sinusoidal wave at a fixed position
- MyNewPony
- · Replies 2 ·
Why does the hanging mass have velocity in x direction in this pulley system?
- leonne
- · Replies 2 ·
Solving simultaneous equations with b*cos 30 and b*sin 30
- ScottH
- · Replies 4 ·
Capacitor Disconnected from Battery, changing distance
- jeffc313
- · Replies 1 ·
Rock fired horizontally off cliff and golf ball thrown from window
- aquann
- · Replies 1 ·
Magnitude of the Tension in a Connection String
- Weasler
- · Replies 3 ·
Mixture composition after adding 1 kg steam at 100°C to 1 kg ice at 0°C
- lpp208
- · Replies 3 ·
Maximum compression of spring when 1 kg puck slides with friction
- kerrwilk
- · Replies 2 ·
Easy Special Relativity Question, Exam two days
- mmmboh
- · Replies 12 ·
How Is Heat Transferred in Different Paths of a P-V Diagram Cycle?
- Azndoode1
- · Replies 5 ·
Is the Normal Force Larger in a Box-Pushing Scenario?
- hydride
- · Replies 4 ·
Velocity and acceleration of an airplane
- aldeemativo
- · Replies 18 ·
Mechanical energy of ball in water
- SteelDirigibl
- · Replies 17 ·
What is the angular velocity of the child and the merry-go-round?
- jk2455
- · Replies 2 ·
Determine the net force acting on a ball as it rolls down a ramp.
- filip3311
- · Replies 3 ·
Coupled Oscillator: Solving Initial Forces & Finding Eigenvalues
- alex3
- · Replies 1 ·
What are the different methods for solving this bouncing ball problem?
- crazyman
- · Replies 15 ·
Momentum, Energy, and Spring problem
- eriadoc
- · Replies 7 ·
Finding unknown mass using a lever system
- Oldblood
- · Replies 1 ·
Find angular velocity of the system
- huybinhs
- · Replies 30 ·
Normal Force on the top of a Loop-the-Loop
- Earn Success
- · Replies 4 ·
How Do I Simplify This Circuit for My Test Preparation?
- dado
- · Replies 2 ·
Find Speed of Block After Released from Compressed Spring
- jk2455
- · Replies 5 ·
Verifying Properties of SHM Using Vertical and Inclined Spring Systems
- TN17
- · Replies 4 ·
What is the formula for solving a network with junction and loop rules?
- 4real4sure
- · Replies 19 ·
Calculating Work Done by a 2-D Force
- jl9999
- · Replies 4 ·
Falling circuit in a magnetic field
- henryc09
- · Replies 1 ·
Spring constant, vertical ball launch speed.
- SteelDirigibl
- · Replies 2 ·
Gravitational field intensity at the center of the earth
- I Like Pi
- · Replies 3 ·
Working on some old exam problems
- eq123
- · Replies 3 ·
Free body diagram, normal force, static friction
- cafe au lait
- · Replies 3 ·
Why does the ideal gas law apply when mass changes if it was derived at constant mass?
- Alwahsh
- · Replies 1 ·
Calculation involving height, speed and gravity
- DB10
- · Replies 4 ·
Finding acceleration due to gravity from an air cart on an inclined track
- thelmes
- · Replies 1 ·
Transverse sinusoidal wave is travelling along a string
- SAGHTD
- · Replies 4 ·
Newton's Ring Apparatus and Refractive Index
- ns225
- · Replies 7 ·
Optimal angle to minimize work pulling a crate with friction
- eriadoc
- · Replies 1 ·
Bungee Jumping: Solving for Mass, Cord Length, and Period of Oscillations
- sona1177
- · Replies 1 ·
Moment of Inertia of a Pendulum
- MyNewPony
- · Replies 10 ·
Electromagnetic Induction - rod on two parallel tracks, force varies
- dharavsolanki
- · Replies 1 ·
Double-paned window heat transfer
- aoc0708
- · Replies 1 ·
Cyclist acceleration and distanced traveled problem
- herbgriffin
- · Replies 1 ·
Hands of a Clock Constant Velocity?
- WriterTyper
- · Replies 3 ·
Solving a Skier's Horizontal Distance Problem
- A PP4L K
- · Replies 2 ·
How Much of the Rod Is Submerged When Partially Made of Metal?
- elsteveo25
- · Replies 3 ·
At which angles is the tension in a pendulum string maximized and halved?
- 3ephemeralwnd
- · Replies 3 ·
Average acceleration and instantaneous acceleration
- SAGHTD
- · Replies 6 ·
Lorentz Transformation Question
- phisci
- · Replies 3 ·
Coming up with a Newton's 2nd law tension problem
- wooker
- · Replies 1 ·
Two skaters colliding at right angles in completely inelastic collision
- A PP4L K
- · Replies 2 ·
How Deep Is the Well When Measuring with Sound and Kinematics?
- anna sung
- · Replies 19 ·
Solving Hookes Law: Find Spring Constant & Weight of Package
- LogicX
- · Replies 6 ·
What is the radius of the highway?
- twenty5
- · Replies 2 ·
Parallel Capacitors: C1+C2 or C1-C2?
- flyers
- · Replies 1 ·
Angular Momentum: Li = Lf Equation for 2 Cylinders
- asz304
- · Replies 1 ·
Mass ~ can someone check my answer real quick?
- twenty5
- · Replies 4 ·
How long must a 0.38-hp engine run to equal helium's internal energy?
- Azndoode1
- · Replies 6 ·
Impulse of clay and rubber ball on the wall
- 3ephemeralwnd
- · Replies 3 ·
Calculate Geosynchronous Orbit Dist. to Earth's Center
- Shaunzio
- · Replies 3 ·
Time for a tree to fall after a 45-degree wedge cut
- mcovalt
- · Replies 11 ·
An Enclosed Mass Profile problem
- bluejazz
- · Replies 2 ·
What torque must be applied to this flywheel?
- dancer_smiley
- · Replies 11 ·
The conservation of energy applying to TWO objects
- flyingpig
- · Replies 13 ·
Where can I go to do physics practice problems?
- MetalManuel
- · Replies 1 ·
Floating Wood: Finding the Ratio Above Water
- gaily4
- · Replies 3 ·
What is the average speed of a particle with given position and time data?
- Casimi
- · Replies 10 ·
Work-energy theorem: electron slowed then reversed to 1/4 speed
- thepatient
- · Replies 7 ·
Two itmes pluged into wall with 15 A breaker
- barthayn
- · Replies 2 ·
Difference between energy and enthalpy
- vmc303
- · Replies 3 ·
Tension in a string (inclined plane, pulley, friction)
- alexpratt
- · Replies 6 ·
Temperature change of ice water
- kmarlow123
- · Replies 3 ·
Moment of inertia and rotational KE of three masses on a rod
- howsockgothap
- · Replies 1 ·
How Do W/m² and kg·s⁻³ Compare in Physics Units?
- Maya Erikson
- · Replies 4 ·
Rayleigh criterion for resolving a double star
- Dars
- · Replies 1 ·