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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Mass on inclined plane, string has mass
- deekin
- · Replies 5 ·
What does the angular momentum quantum number l represent?
- Astronomer1
- · Replies 2 ·
How Do Friction and Normal Force Act on a Rod at an Angle?
- nil1996
- · Replies 1 ·
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 ·