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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Finding the Required Force for a Block on a Wedge
- coppersauce
- · Replies 5 ·
Salt concentration decreasing in a tank with water added and solution removed
- eldrick
- · Replies 5 ·
Is it possible for a given lens to act as converging lens
- olyviab
- · Replies 3 ·
How to find the acceleration given time and total distance
- llach
- · Replies 2 ·
Time Dilation at 0.97c: Calculating Travel Time to a Star
- Allens
- · Replies 4 ·
Finding the general solution to y'' - 2(y')² = 0
- scarlets99
- · Replies 1 ·
Calculating Friction Force for Moving a Crate Across a Rough Floor
- jwang023
- · Replies 3 ·
Finding tension in a wire rope from transverse push and displacement
- holezch
- · Replies 17 ·
Electric Potential and Coulomb's Law Questions
- dillonmhudson
- · Replies 6 ·
Determining Tension of Wire with Frequency, Wavelength and Amplitude
- Seablew4
- · Replies 1 ·
Force Applied to Masses Suspended by Springs: Find Displacements
- sam12345
- · Replies 3 ·
The vector -5.2 has a magnitude of 32 and points in the positive direction.?
- MrGoodyear812
- · Replies 9 ·
Finding the speed of car A and car B
- meeklobraca
- · Replies 3 ·
Two point charges along the y-axis.
- Gemy4
- · Replies 8 ·
Voltage readings inside and outside a charged cylindrical shell
- kimm
- · Replies 5 ·
There's a chopstick on my hand. I need to find the 'angles'.
- lgmcben
- · Replies 3 ·
Thermodynamic Problem involving work
- Tomiscool
- · Replies 7 ·
Potential of the inner earthed sphere
- twinklestar10
- · Replies 2 ·
Torsoin pendulum with meter stick
- faizulhu
- · Replies 1 ·
Why do the E-field and B-field have different units?
- tiredryan
- · Replies 2 ·
Differential Equation in circuit question
- scarlets99
- · Replies 1 ·
How to Calculate Speed, Spin, and Unwrapped String in a Rotary Motion Problem?
- faizulhu
- · Replies 2 ·
How Do You Calculate Tension in a Lifting System with Angles and Acceleration?
- erica715
- · Replies 1 ·
Steady Current and Magnetic Field
- SimbaTheLion
- · Replies 4 ·
How Is Work Calculated for a Refrigerator Moving Across a Surface?
- jahrollins
- · Replies 5 ·
Mechanics question involving moments
- xllx
- · Replies 1 ·
Speed of block after 2 forces acted on it (Mechanics)
- Tasha9000
- · Replies 2 ·
Solve 10 US gal of Jell-O Freezing in Locker Freezer at -10 °F
- Jell-O Man
- · Replies 2 ·
How many molecules of monotonic and diatomic gas are in a container?
- vjk2
- · Replies 1 ·
Box hanging from a rope, need to know the force.
- dmdmm
- · Replies 3 ·
Add Resistors: Solve Circuit Value
- magnifik
- · Replies 4 ·
Reaction force of ladder against wall
- cream_pepe
- · Replies 1 ·
Projectile Motion: Calculating Distance Between Batter and Outfielder"
- barthayn
- · Replies 1 ·
Physics Problem: Calculating Velocity of a Thrown Ball at State Fair Booth
- sweetpea1993
- · Replies 2 ·
Proving what the reaction force equals with moments in mechanics.
- xllx
- · Replies 1 ·
Solving Physics Problem: Work Done with Force and Displacement
- Misr
- · Replies 2 ·
Find the velocity of the swimmer relative to the shore
- larryboi7
- · Replies 4 ·
What is the mass of the planet and its moon using Kepler's 3rd law?
- vivic
- · Replies 1 ·
What Is the Frequency of the Tuning Fork in a Resonating Water Tube Experiment?
- dagitt
- · Replies 1 ·
Finding coefficient of kinetic friction for a sliding hockey puck
- Joshw17_15
- · Replies 1 ·
Superposition of waves as a product of y(x) and y(t)
- DodongoBongo
- · Replies 19 ·
How Many Electrons Transfer in a Capacitor Charging at 460V?
- jacksonpeeble
- · Replies 1 ·
Calculating the Value of g on Earth's Surface
- Teenytiny1991
- · Replies 3 ·
Is Evaporation a Physical or Chemical Change?
- likewhoa
- · Replies 1 ·
Kinetic Energy Molecules Escaping Small Hole
- TheAmorphist
- · Replies 2 ·
Electron speed due to magnetic field.
- sarahaha288
- · Replies 12 ·
What Does the Constant 'b' Represent in the Drag Force Equation?
- UrbanXrisis
- · Replies 9 ·
What Is the Minimum Strength of a Fishing Line to Stop a Drifting Salmon?
- MFlood7356
- · Replies 3 ·
Why do circuit breakers blow when all machines are started at the same time?
- stonewall22
- · Replies 3 ·
Finding max height and speed before it hits the ground of a rocket
- llach
- · Replies 1 ·
Time for particle to reach origin under inverse square force
- skyrolla
- · Replies 4 ·
How to Calculate Current from a Circuit Using Voltage Division Law?
- -EquinoX-
- · Replies 3 ·
Parallel circuit with dependent current source
- -EquinoX-
- · Replies 6 ·
Baseball player sliding to base with kinetic friction
- jwang023
- · Replies 1 ·
Minimum coefficient of static friction for car accelerating at 15 m/s²
- jwang023
- · Replies 1 ·
Finding the position at a change in direction
- llach
- · Replies 1 ·
How Does Antenna Spacing Affect Signal Intensity at a Distance?
- nahanksh
- · Replies 1 ·
Which liquid have low specific heat capacity
- DarkNess_wtc
- · Replies 3 ·
Calculating Frequency for AC Waveforms
- daveiejbeer
- · Replies 4 ·
Y displacements in sine wave at (x) and (x + 2 wavelengths)
- Point Conception
- · Replies 3 ·
Calculate the work done by an ideal gas.
- miamirulz29
- · Replies 1 ·
Solve Final Velocity & Time for Train Traveling 200m
- tcharger130
- · Replies 4 ·
Print ViewElectric Potential Energy of Three Point Charges
- csimon1
- · Replies 5 ·
When to use negative sign ? [3 equations of motion]
- gaganspidey
- · Replies 6 ·
Electric potential with regards to an insulating spherical shell
- duke91
- · Replies 8 ·
Equation for the emf for a rotating loop
- lampshader
- · Replies 2 ·
Finding current in RL circuit with AC voltage source
- magnifik
- · Replies 7 ·
Integrating a charge along a line
- burns12
- · Replies 6 ·
What is the proper heading for the plane in the Classic Airplane Problem?
- AxeluteZero
- · Replies 3 ·
How to find the velocity of a pendulum
- grr_physics
- · Replies 9 ·
Average current produced by pacemaker
- matt72lsu
- · Replies 7 ·
Determine Flux Density to Induce 1V at 6000rpm
- Kev1n
- · Replies 1 ·
Acceleration and magnitude of contact force
- Joshw17_15
- · Replies 1 ·
Coefficient of kinetic friction of a hockey puck
- Joshw17_15
- · Replies 1 ·
What is the solution to calculating current and power in a circuit?
- -EquinoX-
- · Replies 2 ·
Physics of a runner (Constant Acceleration/ constant velocity)
- Cllzzrd
- · Replies 1 ·
What Is the Coefficient of Kinetic Friction for a Sliding Car?
- johndavis2008
- · Replies 1 ·
Solving for Forces and Acceleration in a Tarzan Vine Swing
- MFlood7356
- · Replies 1 ·
Calculating Voltage at Terminal A in a Two-Terminal Circuit
- magnifik
- · Replies 4 ·
What is the Formula for Calculating Doppler Effect in a Moving Train Scenario?
- dagitt
- · Replies 1 ·
Electric Fields and source charge
- DeadFishFactory
- · Replies 1 ·
Displacement and Velocity Direction Relationship
- Silver15
- · Replies 2 ·
Calculate Resistance of 43m Copper Wire
- shimizua
- · Replies 1 ·
How to Calculate Work Done by a Force in Space?
- BikeSmoth
- · Replies 2 ·
Theoretical problem, acceleration
- BikeSmoth
- · Replies 2 ·
How Do Dependent Sources Affect Voltage and Power Calculations in Circuits?
- -EquinoX-
- · Replies 2 ·
Finding specific heat capacity of ice in calorimetry experiment
- Prototype07
- · Replies 3 ·
Pulleys and Conservation of Energy
- zx95
- · Replies 1 ·
Calculate Kinetic Energy in Elastic and Non-Elastic Collisions
- EPhoenix
- · Replies 5 ·
Capacitance of a cylindrical capacitor
- stosw
- · Replies 2 ·
Plural of "Refractive Index": Debate
- tomeatworld
- · Replies 2 ·
What is the Ray Tracing Diagram for a Concave Lens with f < do < R?
- chrisfnet
- · Replies 1 ·
Increasing magnitude of the charge
- sophia.m
- · Replies 8 ·
Net Force on Outside Balls in a Charged System
- jand
- · Replies 3 ·
How does a changing electric flux produce a magnetic field?
- fluidistic
- · Replies 9 ·
Free Fall Problem: How to Calculate Time in Air for a Thrown Ball?
- VoNi
- · Replies 2 ·
Block with pulley on frictionless surface: distance, acceleration, tension
- spursfan2110
- · Replies 4 ·
Tension in a string at an angle
- BikeSmoth
- · Replies 5 ·
Finding tension and angles for two balls on threads of length 2R
- 385sk117
- · Replies 1 ·