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 equivalent capacitance for capacitors in series
- offbeatjumi
- · Replies 1 ·
Clockwise moments = anti-clockwise moments
- lemon
- · Replies 15 ·
Calculate weight of 70 kg person on the moon using gravity formula
- guitar
- · Replies 4 ·
Tension; 2 cables holding weight
- Ramacher
- · Replies 4 ·
Why does a bouncing ball cause more harm, and three other physics questions?
- Misr
- · Replies 13 ·
Angular velocity, linear speed and centripetal acceleration at Earth's equator
- lemon
- · Replies 8 ·
When working out the Uncertainties, what to do with the constants?
- acronym
- · Replies 4 ·
Magnitude of Electric field using superposition principle
- skibum143
- · Replies 5 ·
Acceleration of system of blocks
- electronicxco
- · Replies 1 ·
Calculating Force for Two Boxes Dragged on a Frictionless Surface
- PinguNinjitsu
- · Replies 4 ·
What is the Speed of Sound from Resonance?
- Galileo's Ghost
- · Replies 2 ·
Why igloos and snowcaves stay warm using Kirchoff's law
- Claire_01
- · Replies 1 ·
Wave–particle duality theory question
- tiredryan
- · Replies 4 ·
What Does "Weight x Density" Equal?
- bonjour
- · Replies 32 ·
Solving RC Circuit Equation with Internal Resistance
- quietrain
- · Replies 11 ·
Difference between velocity and speed.
- Sirsh
- · Replies 2 ·
Behavior of a circuit when values increase or decrease
- skibum143
- · Replies 3 ·
Calculate the change in electric potential energy
- nhartung
- · Replies 6 ·
Calculating support forces on each tire
- boardaddict
- · Replies 2 ·
Solving Halflife Question: Calculating Age of Ancient Oak Wine Cask
- DanialD
- · Replies 4 ·
Find Initial Velocity (With Wind Factored In)
- SomeGuy121
- · Replies 4 ·
Thermodynamics - Carnot efficiency
- Wellesley
- · Replies 4 ·
Current through 6 resistors in series and parallel
- skibum143
- · Replies 10 ·
Inclined Plane Problem: How to Calculate Acceleration and Tension?
- haengbon
- · Replies 4 ·
Uniform acceleration/ catch up question
- saikisen
- · Replies 1 ·
What is the Escape Speed of an Electron from a Charged Glass Sphere?
- kmikias
- · Replies 1 ·
Capacitive Keyboard: Calculating Effective Capacitance and Charge Transfer
- burns12
- · Replies 3 ·
Power generated by a rollerblader
- TyErd
- · Replies 10 ·
Find the electric potential at any point on the x axis
- krtica
- · Replies 2 ·
Wavelenght, index of refraction and speed
- dev-hud
- · Replies 2 ·
Does a sedan pull harder than a station wagon in Newton's third law?
- SoulInNeed
- · Replies 13 ·
What Is the Critical Angle for Light in a Submerged Fiber Optic Cable?
- dev-hud
- · Replies 1 ·
Electric force on a charged bird in a vertical field
- Lavas
- · Replies 2 ·
How Is Maximum Speed Calculated for Identical Charges Released Simultaneously?
- apphysicsgirl
- · Replies 1 ·
Is the Moment of Inertia Calculation Correct for a Solid Sphere in Space?
- jumbogala
- · Replies 1 ·
I need to find magnitudes of forces
- Ryuk1990
- · Replies 2 ·
Tension of a String attached to a string
- AxeluteZero
- · Replies 1 ·
What Is the Potential Difference When Moving a Coulomb Between Plates?
- hightoxic56
- · Replies 1 ·
Three pithballs are suspended from thin threads
- wrthwrld
- · Replies 1 ·
Power, Voltage and Current - Hairdryer Problem
- skibum143
- · Replies 2 ·
Temperature at junction of copper and iron rods in series
- poont2
- · Replies 10 ·
Electric Potential-finding unknown charge
- abspeers
- · Replies 3 ·
How Do You Calculate the Capacitance of a Homemade Capacitor?
- csimon1
- · Replies 5 ·
Electric field components from a dipole at distant points
- forensics409
- · Replies 1 ·
What is the velocity and angle of impact when throwing a rock off a cliff?
- kingofretards
- · Replies 5 ·
How Do Material Properties Affect Wire Deformation?
- lemon
- · Replies 12 ·
Find Diameter of Tungsten Filament of Resistance 0.041
- bob12345
- · Replies 2 ·
Change in ion's electrical potential energy
- csimon1
- · Replies 2 ·
Calculating the Effects of Removing Dielectric from Parallel Plate Capacitor
- wrthwrld
- · Replies 1 ·
Solving Spring Constant and Elastic Energy Problems
- lemon
- · Replies 4 ·
Electric Potential-finding unknown distance
- abspeers
- · Replies 1 ·
Static Equilibrium components (pulleys, weights)
- fizzsucks
- · Replies 4 ·
Optics with corrective eyeglasses
- PhucMa
- · Replies 1 ·
How Does Bernoulli's Equation Determine the Height of Mercury in a U-Tube?
- UMDstudent
- · Replies 2 ·
How Is the Velocity of Bicycle Pedals Calculated?
- tsrgb
- · Replies 2 ·
Find the angles in a tension on 2 ropes problem
- bkhurley
- · Replies 2 ·
How Much Does the Water Level Rise with a Submerged Object?
- jayjay112
- · Replies 7 ·
Projectile motion and kinetic energy
- cheybe3
- · Replies 6 ·
Aspect ratio of cylinder floating in water?
- jayjay112
- · Replies 1 ·
Equivalent resistance between points a and b in a circuit
- tmr0116
- · Replies 4 ·
Why Does Entropy Behave Differently in Water and Steam with Temperature Changes?
- noblegas
- · Replies 3 ·
What is the correct way to calculate unit vectors for given vector components?
- H2Owned
- · Replies 5 ·
Finding the Average acceleration from a table of time vs distance
- H2Owned
- · Replies 6 ·
M2: moments when forces are not perpendicular
- pianogirl
- · Replies 2 ·
Maximum Height and Range of a Projectile at a 60-Degree Angle
- azsx1
- · Replies 6 ·
How Does a Bowling Ball's Speed Change Down an Incline?
- BoldKnight399
- · Replies 1 ·
What Charge and Placement Ensure Equilibrium for Two Charges?
- Mercyp
- · Replies 1 ·
Angular velocity -velocity conversion
- torquemaster
- · Replies 1 ·
Ionization chamber and GM tube
- karen0215
- · Replies 2 ·
Is the Relation v=rw Valid for Non Uniform Circular Motion?
- torquemaster
- · Replies 1 ·
Dynamic motion involving pulleys and friction.
- DaftCrunk
- · Replies 1 ·
Maximize Profit w/ Linear Programming: Omega Mfg Co
- SilverSurfer3
- · Replies 1 ·
What are the accelerations of A on an incline with different scenarios?
- Matt12345
- · Replies 2 ·
Tension in string at top of vertical circle with 4.03 kg mass
- black_hole
- · Replies 8 ·
Normal and tangential components
- BertsGarage
- · Replies 5 ·
Finding launch angle for projectile from height to target
- rajesh.msen
- · Replies 3 ·
Solve Electromagnetism: Gold Nugget Net Charge Problem
- y1k8a
- · Replies 3 ·
Calculating Height of Dropped Water Balloons Above Window Edge
- Zeye1280
- · Replies 1 ·
Width of the first dark fringe (2 slit interference)
- XanziBar
- · Replies 2 ·
How does the phase of a wave change over time at a given position?
- yuihatano
- · Replies 2 ·
Calculating Electric Field at Origin for Rotated Square of Positive Charges
- nhartung
- · Replies 1 ·
What length of steel is above the surface?
- UMDstudent
- · Replies 2 ·
Difference between nucleus and nuclide
- karen0215
- · Replies 5 ·
Work-energy theorem , not sure what I am doing wrong.
- 1man
- · Replies 2 ·
Centre of Mass Independence from Origin for Systems of Particles
- nna
- · Replies 3 ·
Two Ball Tension Homework: Find Tensions & Force Between Balls
- lhinds7
- · Replies 2 ·
Finding angular frequency for mass on rotating inclined plane
- songoku
- · Replies 11 ·
How many moles of gold are deposited on the electrode in 10.98 hours?
- bob12345
- · Replies 4 ·
Proof of Elliptical Motion through R(t) Equation
- nna
- · Replies 2 ·
Why Is Tension Calculated Using the Smaller Mass in a Two-Block System?
- mybrohshi5
- · Replies 4 ·
How Is the Hydraulic Lift Formula Derived for Lifting a Car?
- nothing123
- · Replies 8 ·
F_{P} is the force of air resistance on the parachute
- mcg5132
- · Replies 6 ·
Charged Point Mass in a Constant Electric Field
- rmunoz
- · Replies 1 ·
Calculating Normal Force on a Roller-Coaster Car Over a Circular Hill
- MFlood7356
- · Replies 18 ·
Electric field in a solid cylinder with an offset hole
- calandra
- · Replies 10 ·
Current through resistors in RC circuit at t=0 and t=infinity
- vortex193
- · Replies 7 ·
Potential difference, electric potential energy and work
- r_swayze
- · Replies 1 ·
Calculating Force in an Accelerating Elevator - Solving for Normal Force
- contlee
- · Replies 4 ·
Charge on Capacitor in Pure Capacitance Circuit?
- eprparadox
- · Replies 2 ·
How Does Changing Capacitor Characteristics Affect Its Capacitance?
- ***
- · Replies 1 ·