Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculating Frequency of Vibration for 0.3kg Mass Suspended from 200Nm Spring
- brenfox
- · Replies 1 ·
Velocity and drainage time for liquid escaping tank hole
- Lairreiy
- · Replies 5 ·
Why do smaller animals survive larger falls better than larger animals?
- DevPhysics
- · Replies 7 ·
Object on circular path with constant angular acceleration
- anhchangdeptra
- · Replies 5 ·
Physics 3-D Force Vector Question
- AIDB
- · Replies 2 ·
What is the average speed of a car on a trip with varying speeds and distances?
- Medgirl314
- · Replies 27 ·
2D Moments confusion, does d have to be perpendicular?
- Willjeezy
- · Replies 17 ·
How high does a block on a ramp go, with friction?
- oneamp
- · Replies 12 ·
One dimension kinematics, what am I doing wrong?
- hey123a
- · Replies 8 ·
How to increase 3-Dimensional thinking?
- Princu
- · Replies 10 ·
What Is the Frequency of Combined Motion?
- bfusco
- · Replies 1 ·
When can instantaneous velocity equal average velocity during a 10-second trip?
- sammiyahc0
- · Replies 6 ·
What is the electric field at a point midway between two point charges?
- spark693
- · Replies 2 ·
Flux across a plane with varying electric field
- oreosama
- · Replies 1 ·
Calculating Coefficient of Kinetic Friction for a Hockey Puck
- Psyguy22
- · Replies 3 ·
Minimum distance to hang weight on rod supported by cable and friction
- burnst14
- · Replies 31 ·
Particle moves in one dimension given potential funct find maximum x
- oddjobmj
- · Replies 4 ·
Uncertainty principle for electron in nucleus
- Dassinia
- · Replies 2 ·
Electric force between charged balls after contact
- danish1991
- · Replies 4 ·
Solving LC-Circuit Problem: Q & I as Func. of Time
- gralla55
- · Replies 4 ·
Acceleration of an electron in both a magnetic and an electric field
- lynkyra
- · Replies 3 ·
Determine the magnitudes and directions of the currents in each R's.
- NasuSama
- · Replies 2 ·
Buoyancy of a piece of wood floating in water
- Woolyabyss
- · Replies 5 ·
Can you resolve two lights 3 m apart by the Rayleigh criterion?
- Gee Wiz
- · Replies 1 ·
Magnitude of the electric force?
- danish1991
- · Replies 3 ·
Kinematics of a Home Run: What is the Initial Speed and Components at the Fence?
- Jabababa
- · Replies 7 ·
Determine the magnitude of the minimum acceleration
- tristanmagnum
- · Replies 4 ·
Throwing a ball and calculating the speed
- PhyIsOhSoHard
- · Replies 9 ·
What is the normal force between two stacked boxes?
- tristanmagnum
- · Replies 6 ·
Calculating Impulse of Normal Force in a Frictional System with Thrown Ball
- user5
- · Replies 8 ·
What is the Average Force During a Collision?
- FrostyMan
- · Replies 1 ·
A particle is moving in a circle
- mrknowknow
- · Replies 10 ·
Accelerated Motion in [2]- initial speed and launch angle
- hsphysics2
- · Replies 1 ·
The angular velocity of a process control motor is (21−(1/2t^2)) rad/s
- zapzapper
- · Replies 4 ·
Electric field at a radius outside of a hollow cylinder w/ a rod in it
- PhizKid
- · Replies 5 ·
Magnitude and direction of electric field with nonconducting sheets
- cwbullivant
- · Replies 1 ·
Ratio of charges in thomson expt
- ananthu
- · Replies 1 ·
Heat Capacity and Temperature Change
- Qube
- · Replies 4 ·
How old is Jacob when Maggie returns from her trip to Barnard's Star?
- renegade05
- · Replies 5 ·
Problem related to pulley system and velocity
- hasnainzeenwa
- · Replies 17 ·
How Much Farther Would a Car Skid on Wet Concrete?
- marmadmit
- · Replies 2 ·
How to find Mass of an object when given Force and an angle
- physics120bsu
- · Replies 4 ·
Pushing crates up a frictionless ramp
- drjohn15
- · Replies 9 ·
How Is Entropy Calculated in Different Macrostates of Einstein Solids?
- d2x
- · Replies 1 ·
Solving 100W Lightbulb Filament Surface Area Problem
- courtneywetts
- · Replies 3 ·
Two conducting cables - Gauss' Law
- kbwelch17
- · Replies 4 ·
A Charged Sphere with a Cavity
- kbwelch17
- · Replies 6 ·
3-Pulley / 3-Weight system; Find Tension
- oddjobmj
- · Replies 19 ·
Determine the thickness of aluminium using γ-rays
- garyd
- · Replies 1 ·
How Does Gauss's Law Apply to Nonuniform Spherical Charge Distributions?
- kbwelch17
- · Replies 1 ·
Group Velocity of Waves in Gas Problem
- GreenPrint
- · Replies 4 ·
Number of standing waves in a potential barrier
- member 422733
- · Replies 2 ·
Potential at a point in a circuit
- vadevalor
- · Replies 10 ·
What is the maximum mass of a rocket when its momentum and energy are optimized?
- derrickb
- · Replies 4 ·
Effect of speed on horizontal displacement in projectile motion
- darla1608
- · Replies 4 ·
Placement of an object and magnification
- Violagirl
- · Replies 1 ·
How Do You Calculate Bullet Trajectory in Projectile Motion?
- Sylis
- · Replies 3 ·
How to Calculate Javelin Throw Dynamics in Projectile Motion?
- kpadgett
- · Replies 3 ·
How Do You Calculate Vector Addition and Subtraction?
- mikeyp
- · Replies 1 ·
Solve 2-Mass Pulley System Homework for Moving Blocks
- dgZeyas
- · Replies 5 ·
Minimum dot diameter visible to the human eye at near point distance
- Violagirl
- · Replies 6 ·
Express the following in the form of a Complex Number
- Minhq604
- · Replies 4 ·
Pulley and cords tension physics
- tristanmagnum
- · Replies 18 ·
How does variable mass affect Newton's Second Law?
- coldblood
- · Replies 7 ·
Equivalent capacitance between points a and c in five-capacitor circuit
- fredrogers3
- · Replies 4 ·
I'm not sure what my teacher means by resolution limit?
- Astronomer1
- · Replies 3 ·
Estimating R value from home heating oil consumption
- courtneywetts
- · Replies 1 ·
Flux through a cube with field F = r/r²
- dpa
- · Replies 3 ·
Change in momentum when a ball bounces off a wall at different angles
- Matejxx1
- · Replies 11 ·
Linear fit for exponential decay with Poisson uncertainty
- cjurban
- · Replies 11 ·
Absolute pressure, hydraulic lift, and object density problems
- MelissaJL
- · Replies 11 ·
Rotating cylinder on inclined surface
- user5
- · Replies 11 ·
Simplifying a circuit with series and parallel definitions
- irivce
- · Replies 13 ·
Equivalent resistance of simple circuit
- nil1996
- · Replies 4 ·
Lasing experiment and the measurement of intensity
- AlexCdeP
- · Replies 4 ·
Displacement as Function of Time Graph Question
- physicsnobrain
- · Replies 73 ·
Calculating Image Position and Height Using Two Lenses?
- CalebtheCoward
- · Replies 5 ·
How to relate force to the z-axis
- AlaskanPow
- · Replies 1 ·
How long will it take for Sam to catch up to John?
- harujina
- · Replies 16 ·
Electric Potential, and Potential Difference
- Baumer8993
- · Replies 2 ·
Find the maximum speed of the elevato
- postfan
- · Replies 1 ·
The velocity of transverse waves on a string
- Nikles
- · Replies 1 ·
Finding the angle given positive x component and negative y component
- hey123a
- · Replies 5 ·
Finding Electric Field of Exponential Charge Distribution
- rodriguez1gv
- · Replies 5 ·
Solve Sphere Charge: Find Electric Field 2.5m from Center
- stumpoman
- · Replies 1 ·
Coulomb's Law And Electric Field between 2 Parallel Plates
- Yosty22
- · Replies 2 ·
What Was the Initial Speed of the Bicycle Going Downhill?
- harujina
- · Replies 5 ·
Solve Kinematics Problems Before Wednesday
- PandaBunny
- · Replies 4 ·
When can initial velocity be assumed as zero?
- Sylis
- · Replies 2 ·
How Many 1W Bulbs Can I Use with 10.2W Power Source?
- Ezio3.1415
- · Replies 3 ·
What is the velocity of a 90kg astronaut traveling in outer space?
- eddiedowen
- · Replies 5 ·
Determining the maximum number of minority electrons in semiconductor
- Turion
- · Replies 3 ·
Trying to find displacement using velocity and acceleration
- mrsconfused
- · Replies 1 ·
Total charge from charge density (spherical coordinates)
- bfusco
- · Replies 4 ·
What is the approximate uncertainty in the area of a circle
- eddiedowen
- · Replies 4 ·
Finding the resultant of two vectors
- eddiedowen
- · Replies 5 ·
Find the time required for an airplane flight
- eddiedowen
- · Replies 4 ·
What is the magnitude of the average force required to stop a
- eddiedowen
- · Replies 1 ·
Uniform distribution of charge on a plane and on a bar: conditions to
- bznm
- · Replies 1 ·
Aircraft runway question - Acceleration, Time and Final Velocity
- Molly1235
- · Replies 10 ·