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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Calculating Distance from Earth's Center for 1/10 Gravitational Acceleration
- mosque
- · Replies 2 ·
Rayleigh scattering causing blue skies
- sgstudent
- · Replies 1 ·
Conservation of energy question.
- peripatein
- · Replies 4 ·
Torque equilibrium and angular momentum conservation problems
- riseofphoenix
- · Replies 5 ·
Lenz Law copper tube problem modification
- Eric Wright
- · Replies 11 ·
Newton's derivation of Kepler's laws
- inkyvoyd
- · Replies 3 ·
Simple Redshift Question/Orbital Velocity
- bmb2009
- · Replies 4 ·
Stable Bonds at Room Temperature
- PeachBanana
- · Replies 1 ·
Finding sound speed on another planet from coke bottle frequency
- riseofphoenix
- · Replies 23 ·
Is There an Easier Method to Solve Problems Involving Image Charges?
- Saitama
- · Replies 5 ·
Wavelength of Source in Loud Single Mirror Exp.
- merc90
- · Replies 3 ·
What is the moment of inertia of this rotating object?
- riseofphoenix
- · Replies 5 ·
Energy in destructive interference.
- AlchemistK
- · Replies 1 ·
How Does Doubling Frequency Affect Wavelength on a Constant Tension String?
- BizzPhizz
- · Replies 3 ·
What changes when a wave move from 1 string to another.
- ubcstudent
- · Replies 3 ·
Ideal gas law, What stands for P
- kougou
- · Replies 1 ·
Elevetor and acceleration as elevator goes up - algebra involved?
- riseofphoenix
- · Replies 2 ·
How to calculate body fat percentage
- Cloud 9
- · Replies 1 ·
Checking my answer/approach - specific gravity of a mixture
- Cloud 9
- · Replies 1 ·
Finding angular velocity after asteroid collision
- Cpt. DeMorgan
- · Replies 3 ·
Find the maximum acceleration and accleration of a mass spring system.
- Interception
- · Replies 1 ·
Which of the following things DOESN'T change if you double this?
- riseofphoenix
- · Replies 1 ·
Question involving the RC of a discharging capacitor:
- Dongorgon
- · Replies 1 ·
Creating new energy by E-m conversion - why can't this work?
- Michael Redei
- · Replies 9 ·
Temperature of resistor in latent heat experiment.
- peripatein
- · Replies 11 ·
MgF2 anti-reflection coating thickness for destructive interference at 510 nm
- smithisize
- · Replies 6 ·
Deriving D=(2M/m)^1/3r from 2GMr/D^3=Gm/r^2
- Observatoren
- · Replies 20 ·
Is acceleration the variable graphed for an oscillating spring?
- riseofphoenix
- · Replies 23 ·
Voltage, Resistance, and Current chart
- bnosam
- · Replies 4 ·
How Is Angular Momentum Calculated in Particle Motion?
- thehiggsboson
- · Replies 7 ·
Finding torque from a wrench at an angle
- riseofphoenix
- · Replies 6 ·
Bead attached to a spring and moving along a horizontal wire
- beowulf.geata
- · Replies 3 ·
Finding center of mass of three rods joined end-to-end
- riseofphoenix
- · Replies 25 ·
Momentum Conservation in Collisions
- johns123
- · Replies 5 ·
How Does Rocket Ejection Rate Affect Its Acceleration?
- sapsapz
- · Replies 2 ·
Magnetic Field with three parallel wires
- rikinmathur
- · Replies 2 ·
Ratio of kinetic energy for objects at 5m/s and 25m/s
- chris.hart
- · Replies 10 ·
Vertical Vibrations and Lissajous curve
- Erbil
- · Replies 14 ·
What affects tangential acceleration and normal or c?
- Lenjaku
- · Replies 4 ·
I don't get the acceleration relation in this ex
- Lenjaku
- · Replies 3 ·
Velocities at B and C on a rotating rod
- MrWarlock616
- · Replies 12 ·
Differential equation for freely swinging body
- cmmcnamara
- · Replies 1 ·
Moment about z-axis for 3D shaft with perpendicular distances
- wahaj
- · Replies 4 ·
Derivation of Instantaneous Velocity
- 0x5B
- · Replies 6 ·
Magnetic flux through coil 2 due to current in coil 1
- iDFLO
- · Replies 2 ·
Bernoulli's Principle with a Venturi Tube, find flow rate
- heatherro92
- · Replies 3 ·
Proving a thermal conductivity/resistance formula.
- thatguythere
- · Replies 2 ·
Solving Velocity Problem: 26°, 23m, 12m, 4.8s
- Lordrunt
- · Replies 4 ·
Double-slit interference in ripple tank: finding second order minimum
- smithisize
- · Replies 5 ·
Is 5 N/m² a Reasonable Young's Modulus for Wood?
- lionely
- · Replies 10 ·
Torque- Vector cross product using both geometric and algebraic methods
- garyd
- · Replies 4 ·
Forces in the body homework problem
- Shanghai Babe
- · Replies 9 ·
Calculating Boiler Capacity and Steam Properties
- lindsey4
- · Replies 3 ·
Calculating the value of R for a resistor in an RLC series circuit
- quellcrist
- · Replies 4 ·
Index of refraction from electromagnetic wave equation in liquid
- bmb2009
- · Replies 5 ·
How to find emissivity of tungsten from ln graph?
- dinospamoni
- · Replies 3 ·
Equation for translational equilibrium for horizontal components of force
- Shanghai Babe
- · Replies 1 ·
Distance Earth moves when a 400g apple falls 5.00m
- Coco12
- · Replies 3 ·
2d absolutely elastic vector collision
- wolfblood
- · Replies 17 ·
What is the work done by a varying force on an object moving along the Y-axis?
- dyinfrmphysic
- · Replies 8 ·
Normalization of wave function (Griffiths QM, 2.5)
- Saraphim
- · Replies 1 ·
Steel cylinder on inclined workshop floor at 10 degrees
- physicshawk
- · Replies 3 ·
Find the final speed of a skier if he lands 145m down a 20 degree slope?
- woopycushion
- · Replies 1 ·
Determine the coefficient of kinetic friction
- woopycushion
- · Replies 2 ·
How much force is exerted on the roof?
- lindsey4
- · Replies 2 ·
What Amplitude Causes Slippage in a Two-Block Spring System?
- Fizic
- · Replies 1 ·
Bug-windshield collision and impulse-momentum concepts
- Mrclean214
- · Replies 3 ·
Carnot Refrigerator Efficiency and Energy Calculations | Homework Help
- lindsey4
- · Replies 2 ·
Double-Slit Arrangement With Plastic Sheet
- Ellipses
- · Replies 4 ·
Understanding Angular Acceleration and Moment of Inertia in a Pulley System
- NasuSama
- · Replies 8 ·
Finding weight of sign suspended by two strings at 40 degrees
- amberacd123
- · Replies 1 ·
Two parallel mirrors are separated by a certain distance
- november1992
- · Replies 5 ·
Period of a uniform metal disk oscillating as a physical pendulum
- NasuSama
- · Replies 8 ·
Calculate Velocity from Cliff Jump: Horizontal and Vertical Distance
- Lordrunt
- · Replies 2 ·
Two-Dimensional Perfectly Inelastic Collisions
- scoop91
- · Replies 1 ·
How Do Different Acceleration Rates Affect Travel Time in Mine Shafts?
- Merlan114
- · Replies 1 ·
Finding maximum slope of speed vs. time graph and comparing to gravity
- urbano
- · Replies 2 ·
How do frequency and pressure affect sound in Kundt's Tube?
- Fabio010
- · Replies 1 ·
Understanding Edexcel GCE January 2010 Mechanics M2 QP: Question 8C Explanation
- phospho
- · Replies 2 ·
A String is Connected to a Vibrating Arm and Passes Over a Light Pulley
- Kristenx2
- · Replies 2 ·
Problem with solving differential equation to solve for time
- rico22
- · Replies 8 ·
Calculating Overall Power in Nd/YAG Laser
- nachos1
- · Replies 4 ·
Rotational Dynamics - Energy, Torque
- Stealth849
- · Replies 20 ·
Youngs Modulus and Centripetal Acceleration
- zainy199
- · Replies 16 ·
Mean lifetime of pi(+) mesons - Special Relativity
- lmstaples
- · Replies 6 ·
Pressure in mouth when sucking fluid up a straw 25 cm
- johnhuntsman
- · Replies 6 ·
Tuning fork resonance in water tube at 528Hz
- Kristenx2
- · Replies 2 ·
Understanding Potential Difference in a Cubic Circuit
- V0ODO0CH1LD
- · Replies 10 ·
What Happens to the Cart During and After Throwing a Ball from a Cart?
- hugs86
- · Replies 2 ·
What is the Capacitance of the Earth-Ionosphere System?
- lmstaples
- · Replies 1 ·
Ten Kinematic Problems Grade 12 Physics
- Steb
- · Replies 4 ·
Velocity released from a spring
- PhizKid
- · Replies 4 ·
What is the acceleration of a block on an inclined plane with no friction?
- KSMSKM
- · Replies 4 ·
Quick easy question block sliding down wedge
- troytroy
- · Replies 5 ·
How Does Velocity Change in a Car Crash Impact?
- johns123
- · Replies 3 ·
Why is the same force drawn twice in the FBD for member AC?
- wahaj
- · Replies 7 ·
Density word problem A 300 kg meterorite is in circular motion orbiting a far
- vipson231
- · Replies 4 ·
How Do You Calculate the Trajectory of a Tennis Ball in Physics?
- basedgod
- · Replies 5 ·
How do I find this? 60x10-6 = ?
- Vancurt
- · Replies 5 ·