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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Covering half of lens with an opaque coating
- Titan97
- · Replies 14 ·
Sled Dogs and Components of Force
- AK Husky
- · Replies 6 ·
Why does projectile motion include a z-direction?
- YauYauYau
- · Replies 2 ·
Moment of inertia rigid body problem
- i_hate_math
- · Replies 38 ·
Finding angular acceleration when a bike wheel slows to stop
- df102015
- · Replies 3 ·
Calculating the Angle of a Pendulum Swing into a Peg
- StrangerDanger
- · Replies 3 ·
400kJ of work is exerted to reduce a car's velocity
- WannabeEngineer
- · Replies 1 ·
How Does Friction Impact Post-Collision Speed in Inelastic Car Accidents?
- ramr0d
- · Replies 4 ·
Question on Sliding/rolling spherical ball
- i_hate_math
- · Replies 1 ·
Reynold's Number: Understanding Laminar Flow in Smooth Pipes
- foo9008
- · Replies 1 ·
Thermal Conductivity and Lasers
- says
- · Replies 1 ·
Question on Moment of Inertia/Rotational Inertia
- i_hate_math
- · Replies 4 ·
Smooth rolling motion - conservation of energy?
- stfz
- · Replies 3 ·
Analyzing Angular Acceleration and Particle Motion in Rotating Spheres
- Jamest39
- · Replies 15 ·
Why does the magnetic field formula use μ/2π instead of μ/4π?
- Julia Coggins
- · Replies 4 ·
Uncharged capacitor connected to a charged capacitor
- Titan97
- · Replies 7 ·
Motion after force applied is removed
- Anjum S Khan
- · Replies 3 ·
A positive charge kept inside a conducting shell
- Titan97
- · Replies 3 ·
A problem in rigid body dynamics
- vijayramakrishnan
- · Replies 4 ·
Multiple Lens System(Objectless and Parallel Rays)
- JohnGaltis
- · Replies 2 ·
Finding Equilibrium and Motion of a Mass Connected to Two Springs
- Karol
- · Replies 6 ·
How does unscrewing a bulb affect brightness of others in a circuit?
- cvc121
- · Replies 14 ·
How Does Air Resistance Affect the Acceleration of Falling Objects?
- nso09
- · Replies 13 ·
Absolutely central elastic collision (or translate lying)
- Gustavs1337
- · Replies 14 ·
Electric Potential Due to point charges
- MidgetDwarf
- · Replies 1 ·
Car tire revolutions during braking with constant deceleration
- df102015
- · Replies 10 ·
Work Done by Theme Park Machine on Rider
- Balsam
- · Replies 2 ·
Mean field approximation and entropy
- CAF123
- · Replies 7 ·
Calculate Tension on Rope for Boat in Wind Up to 3000 lbs
- zulfiqar6
- · Replies 6 ·
Moment of inertia (double integral)
- Pascal1p
- · Replies 7 ·
Calculating E due infinite line and point charge?
- jb007
- · Replies 2 ·
How fast must you travel to get to Sirius in 15.5 years?
- ah011
- · Replies 12 ·
Finding equivalent capacitance and stored energy in a three-capacitor network
- KieranRC
- · Replies 9 ·
General Motion of a particle in 3 dimensions
- YauYauYau
- · Replies 5 ·
Does a = v dv/dx hold when moving in a plane?
- Feynman's fan
- · Replies 1 ·
Voltage induced by changing field
- Cyan Ray
- · Replies 2 ·
Finding velocity and momentum of a bullet and recoiling gun
- C-ron27
- · Replies 2 ·
Linear Momentum of system of two blocks
- RoboNerd
- · Replies 15 ·
Light wave incident on and passing through a thin soap film
- tffnyyy
- · Replies 1 ·
Specific Heat Capacity Graph Question
- YES q THE zU19
- · Replies 2 ·
Single-sit vs. Double-slit vs. Diffraction grating
- kamhogo
- · Replies 4 ·
How Much Friction is Needed to Keep the Ladder in Place?
- Kamisama
- · Replies 2 ·
Pole leaning against wall - Kleppner
- RedDelicious
- · Replies 1 ·
Calculating the cost of electricity
- alexandria
- · Replies 6 ·
Electric Field between two Charges
- Dillion
- · Replies 21 ·
Light ray deflected by the prism made of ruby
- tffnyyy
- · Replies 1 ·
Which way will the conical object move?
- Vibhor
- · Replies 25 ·
Finding g from a Compound Pendulum Graph
- Motorbiker
- · Replies 3 ·
Why does Co²⁺ solution appear red under white light?
- RoboNerd
- · Replies 10 ·
How Do You Calculate Current and Power in a 3-Resistor Circuit?
- ReidMerrill
- · Replies 5 ·
Maximum acceleration of a spring
- rrosa522
- · Replies 3 ·
Finding mass of an object on a spring, given Frequency
- Zach_Sch
- · Replies 2 ·
Loss due to contraction vs loss due to expansion
- foo9008
- · Replies 3 ·
Finding the Value of Acceleration Due to Gravity: Using Graphs and Equations
- Motorbiker
- · Replies 2 ·
How Does the Angle Between Wires in a Magnetic Field Affect the Force on Them?
- zade70
- · Replies 2 ·
Great circle distance and northernmost point between Helsinki and Seattle
- science_rules
- · Replies 8 ·
What is the Correct Method for Finding Induced EMF in a Coil?
- ReidMerrill
- · Replies 1 ·
Distance and displacement confusion
- Ab17
- · Replies 27 ·
Kinetic Friction and Incline for a Car
- bartersnarter
- · Replies 1 ·
Force exerted normal to the plate
- foo9008
- · Replies 3 ·
Finding the Force on a bolt from a wrench
- pinkfishegg
- · Replies 7 ·
What does potential difference mean in Ohm's law?
- alexandria
- · Replies 8 ·
Find the induction of the magnetic field at the point O
- zade70
- · Replies 15 ·
How Can I Use Magnetic Field Protractor to Solve for Magnetic Flux?
- Silverado
- · Replies 6 ·
Find the force that the magnetic field applies on the wire
- zade70
- · Replies 9 ·
How Is Magnetic Induction Calculated in a Triangle of Parallel Wires?
- zade70
- · Replies 4 ·
What is the Correct Equation for Flow Rate?
- foo9008
- · Replies 2 ·
Forces at the supports of a diving board with a diver on the edge
- STEM_STRUGGLES
- · Replies 7 ·
Calculate the quasi-Fermi level of holes and electrons?
- yeyintkoko
- · Replies 1 ·
Checking work on circuit current and voltage calculations
- alexandria
- · Replies 2 ·
Choosing repeating variable in pi Buckingham theorem
- foo9008
- · Replies 24 ·
Is My Battery Completely Dead?
- Sho Kano
- · Replies 10 ·
Magnitude of the E-Field at the center of curvature
- Sho Kano
- · Replies 22 ·
Calculating Passing Height of Two Thrown Balls
- Said Ahmad
- · Replies 1 ·
Finding tension in a string from a suspended object
- cnikk15
- · Replies 7 ·
Calculating Minimum Horsepower Needed for Object Movement
- rm121181
- · Replies 3 ·
The conditions and assumptions for the Antoine equation?
- Ortanul
- · Replies 5 ·
Finding Static Equilibrium: Solving a Rod and Cable System
- RodriRego
- · Replies 4 ·
Calculating the Frequency of a Centrifuge in Hertz and Revolutions per Minute
- Balsam
- · Replies 7 ·
Two blocks collide with spring in-between.
- Jose Bouza
- · Replies 2 ·
Finding the speed of a relativistic particle
- alba
- · Replies 4 ·
Heat energy from a charged configuration
- alivedude
- · Replies 6 ·
Why Does the Rod Rotate to 67 Degrees After the Clay Ball Impact?
- kanav70
- · Replies 9 ·
Why are the Q1 values 5, −5, and −2 for different charge pairs?
- foo9008
- · Replies 7 ·
How Is dA Calculated for an Isothermal Expansion of an Ideal Gas?
- grandpa2390
- · Replies 12 ·
Capacitor Discharge Time Formula Euler
- NickTesla
- · Replies 11 ·
Max Speed of Car on Wet Ramp Turn at 20° Bank
- Balsam
- · Replies 3 ·
How many kg of ice must be dropped to make Tf= 22.7C?
- madison222s
- · Replies 9 ·
Find the general expression for the adiabatic relationship
- grandpa2390
- · Replies 11 ·
Does all light exiting the medium have one polarization at Brewster's angle?
- says
- · Replies 1 ·
Force between parallel current-carrying wires derivation
- ztalira
- · Replies 1 ·
Calculating Final Angular Velocity of Turntable with Runner on a Horizontal Axis
- reminiscent
- · Replies 5 ·
Linear momentum problem (ballistic pendulum)
- Dennis Heerlein
- · Replies 2 ·
Moment of inertia of a cross system
- Rheegeaux
- · Replies 5 ·
Power output of heater melting ice from -30°C
- alexandria
- · Replies 9 ·
How Do You Analyze an Electromagnetic Wave Given Its Electric Field Equation?
- JesseJC
- · Replies 2 ·
What is the relationship between stiffness and Young Modulus?
- bogdan12
- · Replies 1 ·
Understanding Lenz's Law and the Right Hand Rule in Electromagnetic Induction
- Rmehtany
- · Replies 3 ·
Is pipe friction more important than velocity in determining pumping pressure?
- foo9008
- · Replies 4 ·
What happens to the total power dissipated in the circuit ?
- kamhogo
- · Replies 13 ·