Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How Do You Calculate the Correct Launch Angle for a Projectile?
- MrRandom66
- · Replies 3 ·
How to Derive Formulas for Mass and Angle in Ramp Experiments?
- Asuncion
- · Replies 2 ·
Revolutions frequency after collision
- bznm
- · Replies 4 ·
More Forces with some trig; I don't know where the mistake is
- iJamJL
- · Replies 6 ·
Velocity-Vs Time Graphs - 2nd problem
- koolkidx45
- · Replies 1 ·
Sketching Kinematic Graphs for a Person's Movement from a Reference Point
- koolkidx45
- · Replies 1 ·
Frictional force, velocity, and acceleration
- iJamJL
- · Replies 5 ·
Is Biconcave the Same as Double Concave?
- PCSL
- · Replies 1 ·
Spring Constant and Time Period
- Peter G.
- · Replies 1 ·
What Is the Viscosity of the Fluid in a Concentric Cylinder Viscometer?
- Opus_723
- · Replies 2 ·
Fluid mechanics calculating force needed to lift submerged disc
- Gman2013
- · Replies 3 ·
Point slope equation and velocity
- LearninDaMath
- · Replies 5 ·
How Do You Calculate Initial Current in a Multi-Capacitor RC Circuit?
- jforce93
- · Replies 2 ·
Phase difference b/w air-water interface and water-air interface
- c-murda
- · Replies 17 ·
Help with Physics - Object submerged, displacement, density, pressure?
- bpears
- · Replies 13 ·
Why electric potential of arc treated like point charge
- lonewolf219
- · Replies 5 ·
Dark matter density calculation
- skydivephil
- · Replies 3 ·
Electric Fields and point charges
- beachy6
- · Replies 33 ·
What is the connection between electric field strength and potential gradient?
- Arshad_Physic
- · Replies 6 ·
Current from stream of particles
- jehan60188
- · Replies 3 ·
Solving Snell's Law: Find Incident & Refractive Angles
- zebedi
- · Replies 12 ·
What Is Vo in a Power Source Diagram Circuit?
- rh23
- · Replies 1 ·
Electric field from very long wire
- Eats Dirt
- · Replies 1 ·
A force acts on a particle based on position, determine work. Sign question.
- r0wbrt
- · Replies 1 ·
Work and Voltage Change in Moving a Proton from Infinity to 0.16m
- ParoXsitiC
- · Replies 1 ·
Calculating Wavelength from Double-Slit Interference Pattern
- cupcakequeen
- · Replies 1 ·
Equilibrium under parallel forces
- th4450
- · Replies 3 ·
Resultant forces of coplanar systems
- SUCRALOSE
- · Replies 5 ·
Find how much a wire stretched at the bottom of swing of pendulum
- rezihk
- · Replies 3 ·
Find the Distance of a Toy Zebra from a Chute
- becky_marie11
- · Replies 3 ·
Velocity change by running engine for 1 year
- pridet8
- · Replies 6 ·
Ladder leaning against a wall friction factor
- Uniquebum
- · Replies 1 ·
How Do You Calculate Tension and Acceleration in a Two-Mass System?
- sb13
- · Replies 1 ·
What Frequency Causes a Rock to Lift Off a Vibrating Platform?
- aubailey
- · Replies 2 ·
Interrelation between energy and momentum
- joemomma
- · Replies 1 ·
Block on inclined plane with pulleys and friction
- phlstr
- · Replies 11 ·
Solving 2 Loop RC Circuit: Find I1(0)
- kjlchem
- · Replies 5 ·
Give a symbolic expression for submerging a metal in water
- Anna55
- · Replies 11 ·
What Is the Minimum Mass Needed to Move the Block in a Pulley System?
- jorcrobe
- · Replies 2 ·
A 1600 kg jet engine is fastened to the fuselage of a passenger jet
- sb13
- · Replies 4 ·
Force and Constant Acceleration Problem
- sb13
- · Replies 22 ·
If a 1000 kg car is moving at 10 m/s brakes to stop in 5 seconds.
- bmac88
- · Replies 1 ·
Finding a Function from Experimental Data
- albert12345
- · Replies 14 ·
Total work done on clay during Spring Compression
- Koscher
- · Replies 1 ·
Water Height in Bucket with Filling Hose
- PirateFan308
- · Replies 5 ·
At what phase is the heat capacity the greatest?
- Anna55
- · Replies 2 ·
Find Voltage on Y-Axis for y>>s
- Minhtran1092
- · Replies 3 ·
How Do You Calculate the Gravitational Force on a 2 kg Mass?
- armanio99
- · Replies 1 ·
How Does the Displacement Equation Calculate Position Changes in Physics?
- -Physician
- · Replies 3 ·
Acceleration (of an orange, 2 possible answers)
- supernova1203
- · Replies 2 ·
Is Electron Motion in a Loop Wire Accelerated?
- mindauggas
- · Replies 4 ·
What is the magnitude of the dipole's electric field at point P?
- McAfee
- · Replies 1 ·
Finding Relationship Information from Graph (direct proportionality)
- MohammadG
- · Replies 9 ·
Why can't we use cons of energy in this problem? (conceptual)
- jackspicer
- · Replies 2 ·
Relationship Between Charge, Mass, and Balloon Intrinsic Energy
- vivekrai
- · Replies 15 ·
To double the power dissipated by a resistor you can
- Pi Face
- · Replies 2 ·
Calc Work Req'd for 4 Charges in Figure
- shahin93
- · Replies 1 ·
Finding the minimum speed of a proton traveling between two parallel plates.
- Nat1104
- · Replies 1 ·
Concept: Air Resistance in Projectile Motion
- ibwm
- · Replies 3 ·
Elastic 2D Collision with Lots of Unknowns
- mindarson
- · Replies 1 ·
Net force on a particle with potential energy function
- Koscher
- · Replies 3 ·
Finding Electric Field Outside a Charged Conductor
- Suziii
- · Replies 2 ·
Spherical conductors connected by a wire.
- rofln
- · Replies 5 ·
Capacitor Problem involving a slab of Copper between a Capacitor
- Simon777
- · Replies 1 ·
Trying to find the appropriate motor for a sliding door
- CuriousNotion
- · Replies 1 ·
Calculating the Mass of Saturn Using Orbital Data
- Fysicsx
- · Replies 4 ·
Electric Field on Central Axis
- McAfee
- · Replies 3 ·
How Do You Calculate the Charge on Capacitor C5 in a Mixed Circuit?
- mrshappy0
- · Replies 8 ·
Simple Harmonic Motion with Impulse
- conorordan
- · Replies 1 ·
Speed of projectile launched propelled by air pressure
- Pharrahnox
- · Replies 6 ·
Photon-photon collision - electron-anti electron pair creation
- khfrekek92
- · Replies 4 ·
Instantaneous velocity from avg velocity with constant accelartion
- KeilB
- · Replies 3 ·
Simple Harmonic Motion conceptual question
- getty102
- · Replies 2 ·
Ideal Gas Law and pressure in a holder
- JSGandora
- · Replies 8 ·
Describing the motion of a graph.
- koolkidx45
- · Replies 7 ·
Finding theta on an incline plane
- jorcrobe
- · Replies 1 ·
Complex Numbers added as impedances in parallel
- Trespaser5
- · Replies 5 ·
When you drive a .36 kg apple, Earth exerts a force on It that
- KellySierra22
- · Replies 2 ·
How to Derive Velocity from Newton's Second Law?
- Niles
- · Replies 9 ·
Gauss' Law for nonconducting sphere
- armolinasf
- · Replies 7 ·
Calculating Net Forces and Distance Traveled: Hockey Puck Example
- mom2maxncoop
- · Replies 12 ·
A box slides on top of a cart as a force is applied to the cart
- conorwood
- · Replies 1 ·
Pond Hockey: Vector Displacement Calculation
- dylanjames
- · Replies 1 ·
Magnetic Field required to seprate to ions
- Eng_physicist
- · Replies 2 ·
Electric Potential Energy Question
- Alouette
- · Replies 5 ·
Vertical Deflection in Ink-Jet Printer
- Alouette
- · Replies 9 ·
Solving MCAT Questions: Lens Adjustments and Index of Refraction Explained
- derbu
- · Replies 2 ·
Does 1 Joule of Energy Have a Distinct Mass?
- aaronfranz
- · Replies 2 ·
How Does Gauss' Law Apply to a Non-Uniformly Charged Hollow Sphere?
- hatsoff
- · Replies 3 ·
Electric Potential Difference in a Circuit with Emf Devices
- Sefrez
- · Replies 4 ·
Cos & Sin: Learn How to Work With Them
- -Physician
- · Replies 7 ·
Lorentz Law field equation applied in a field
- shyguy79
- · Replies 9 ·
Newton's laws with buckets and strings
- runner2392
- · Replies 2 ·
How Does Wood Slow Down a Bullet?
- mandabox
- · Replies 3 ·
Calculating Mechanical Energy Lost to Friction on Ski Slope
- AD_3
- · Replies 1 ·
Calculate the Net Force Acting on the Object.
- Lewis_44
- · Replies 8 ·
Kinetic energy dissipation by friction
- NoobBR
- · Replies 5 ·
Electric field on two charged spheres
- Nivlac2425
- · Replies 5 ·
Physics Special Relativity Time Dilation Question?
- justinh8
- · Replies 13 ·
Help with isotherms and adiabatic curves
- channel1
- · Replies 4 ·