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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Finding permittivity of acetate in a parallel plate capacitor
- ChechoGomez
- · Replies 1 ·
Solving for Angular Frequency of 2 Masses on a Spring
- usamo42j
- · Replies 1 ·
Vaidity of rotational formulae for variable acceleration
- spaghetti3451
- · Replies 2 ·
When does a rectangular block tip before slipping on an incline?
- usamo42j
- · Replies 1 ·
Finding where net force is zero on q between two point charges
- netteo
- · Replies 8 ·
Kinetic rotational energy problem
- spaghetti3451
- · Replies 3 ·
Finding pressure due to a fluid
- xoxjojobxox
- · Replies 1 ·
Single displacement to sink a golf ball in one stroke
- 503gurl
- · Replies 2 ·
What Should Be the Angle of the Slope for a Perfect Ski Jump Landing?
- lwc729
- · Replies 13 ·
Understanding Charge Separation in the Presence of Static Electricity
- ChunkymonkeyI
- · Replies 1 ·
Projectile Motion: Finding angles given velocity and impact coordinates
- joepeezy
- · Replies 1 ·
Longest and shortest distance in an elliptical orbit
- merovingian12
- · Replies 4 ·
Speed related to Average Velocity
- suessthezeus
- · Replies 4 ·
What are the vector directions for the electric fields in each part?
- cse63146
- · Replies 2 ·
Pressure with Depth; understanding Apparatus
- AdkinsJr
- · Replies 8 ·
What is the value of C2 in the given circuit with capacitors C1, C3, and C4?
- maiad
- · Replies 11 ·
Define Angle of Projection with The Given Parameters
- velouria131
- · Replies 5 ·
Resultants of Nonconcurrent Force Systems
- JordanIV
- · Replies 1 ·
Calculating Work for Removing Water from Syringe
- DanicaK
- · Replies 3 ·
Infinite Sheets of Charge and Conducting Slab
- darwin59
- · Replies 3 ·
Finding instantaneous velocity from tangent lines on a position-time graph
- murrayk91
- · Replies 4 ·
Underdamped Harmonic oscillator with applied force
- nbram87
- · Replies 1 ·
Why is the electric field zero inside a conductor in static equilibrium?
- Timebomb3750
- · Replies 2 ·
Maximum initial speed the electron can have without hitting the negative plate
- kirby2
- · Replies 2 ·
Bernoulli's law for water coming out of a faucet
- smeiste
- · Replies 8 ·
What Is the Velocity of a Galloping Horse in the First Ten Seconds?
- chinnie15
- · Replies 3 ·
Dropping sand onto a conveyor belt
- serverxeon
- · Replies 5 ·
Collision of Equal Mass Hockey Pucks
- chudzoik
- · Replies 1 ·
How Much Energy is Lost When Charging a Capacitor?
- physgrl
- · Replies 20 ·
Physics problem with masses and pulley and a ramp
- physics_help
- · Replies 2 ·
New memeber. ball trajectory puzzle
- charlie'sthe1
- · Replies 2 ·
Spacecraft velocity after elastic collision with planet
- Opus_723
- · Replies 1 ·
How does substituting t in the y-coordinate equation affect the outcome?
- bentley4
- · Replies 3 ·
Capacitor Circuit Calculations - How to Find Charge, Energy and Voltage
- Grandsatsuma
- · Replies 1 ·
Determining Optimal Density for Floating Hollow Spherical Ball in a Liquid
- DanicaK
- · Replies 11 ·
How Does a Skier's Launch Angle Affect Their Landing Distance?
- jgroves0026
- · Replies 3 ·
What is the potential energy of a pyramid?
- xicor
- · Replies 6 ·
What can we learn from a bouncing ball experiment?
- iamBevan
- · Replies 2 ·
Where Does the Crate Strike the Wall?
- Brand3n
- · Replies 4 ·
Century Growth Problem: Rate of Change
- simplemuse
- · Replies 2 ·
Are there Electrostatic Fields at infinity?
- cmd2002
- · Replies 2 ·
How does a motion attachment affect projectile motion?
- maru1721
- · Replies 2 ·
Find Air Temperature in a 25.3cm Air Column with 1024Hz Frequency
- Obscurities
- · Replies 7 ·
Effect of radius changes on electric fields and potential difference?
- mirandab17
- · Replies 3 ·
What Happens to Charge When Capacitor Plate Separation Doubles?
- physgrl
- · Replies 2 ·
Help with urgent physics problem due tomorrow
- shan696
- · Replies 4 ·
Capacitors charge and voltage relationship
- physgrl
- · Replies 10 ·
Estimate Water Usage for Local Town of 30000
- PhysicsCCR
- · Replies 23 ·
Why are the charges on capacitors A and B the same, and C and D equivalent?
- maiad
- · Replies 5 ·
Projectile Motion Particle Problem
- moonbase
- · Replies 2 ·
U-Tube Fluid Statics: Solving for Water Column Length and Mercury Rise
- AdkinsJr
- · Replies 4 ·
Elastic ball bouncing on 30° incline: time between bounces
- physicsisgrea
- · Replies 3 ·
Linear Motion - Minimum Retardation to Avoid Crash?
- project_ILE
- · Replies 3 ·
Calculate Brewster angle for glass
- ZedCar
- · Replies 2 ·
Calculating Gasoline Needed for 50.0hp Heat Engine Output
- ChunkymonkeyI
- · Replies 9 ·
Special Relativity: Time Dilation
- JennV
- · Replies 1 ·
Mass in MeV/c2 of a particle with a mass of 4.032u
- jsmith613
- · Replies 4 ·
Why Do We Measure Velocity in Metres Per Second Instead of Seconds Per Metre
- eagleye
- · Replies 8 ·
How Does Projectile Angle Affect Flight Time, Max Height, and Initial Speed?
- sbright
- · Replies 6 ·
Ball thrown upward caught at 10m after 2 seconds, find maximum height
- fisselt
- · Replies 7 ·
What is the Probability Density for a Wave Function?
- aglo6509
- · Replies 2 ·
How to Calculate Tension and Velocity in a Rotational System?
- Axel H
- · Replies 2 ·
Where an electric field is equal due to two charges?
- mirandab17
- · Replies 1 ·
Finding magnitude of C = A − B with given angles and magnitudes
- T54
- · Replies 8 ·
Electric Potential outside of a spherical conductor
- eagle9333
- · Replies 1 ·
Upstream and Downstream one dimensional motion
- ashleyymariie
- · Replies 1 ·
Football kickoff projectile motion: flight time and range
- DPXJube
- · Replies 5 ·
Rocket maximum height after motor shuts off at 1km
- fisselt
- · Replies 2 ·
Speed and Velocity(Driving Me Crazy)
- DEdesigns57
- · Replies 5 ·
Horizontal cable with one vertical point force
- Slimjimi
- · Replies 5 ·
Finding vectors parallel and perpendicular to plane
- 1MileCrash
- · Replies 5 ·
Block falling onto rotating disc: linear speed and revolutions
- Elysian
- · Replies 2 ·
Does Normal Force Do Work in Vertical Motion?
- Vontox7
- · Replies 3 ·
Altitude at the top of a parabolic aircraft maneuver
- ashleyymariie
- · Replies 5 ·
[Electromagnetism] How much work is required in moving Q3 to infinity?
- Sean1218
- · Replies 2 ·
Spring force with free fall problem
- scarne92
- · Replies 1 ·
Energy lost to air resistance in falling pine cone and roller coaster problems
- sunaluna
- · Replies 1 ·
Energy loss, stopping power equation,
- m3h
- · Replies 5 ·
Heat exchange when ice cubes are added to warm water and glass
- XwyhyX
- · Replies 11 ·
Resultant Frequency of two unlike soundwaves
- mckenna12
- · Replies 1 ·
Soundwave Intensities and power
- chelsea123
- · Replies 1 ·
What is the charge on a suspended raindrop between two parallel plates?
- shyguy79
- · Replies 11 ·
Projection up an inclined plane
- Dreamalittle
- · Replies 1 ·
Finding out the mass of an object given only height
- DPXJube
- · Replies 2 ·
Thermal Expansion of Brass piston in Steel cylinder
- NickP89
- · Replies 1 ·
Two spheres hanging, find charge.
- DrKrunklehorn
- · Replies 7 ·
Total energy of a star in terms of average temp.
- JDStupi
- · Replies 1 ·
Static Electricity and Algebra Problems
- mattyc33
- · Replies 2 ·
Finding the number of spheres in a graduated cylinder
- brotivation
- · Replies 6 ·
Kinematics In Two Dimensions - Archery
- Boyerta
- · Replies 2 ·
Maximum charge and voltage on a sphere
- shyguy79
- · Replies 2 ·
Polar coordinates of an electric field
- netteo
- · Replies 3 ·
What Steps Are Needed to Solve This Circuit Analysis Problem?
- pyroknife
- · Replies 8 ·
One dimensional motion- object accelerating straight downwards
- texan14
- · Replies 3 ·
Application of Newton's Laws of motion
- Aggie
- · Replies 5 ·
Atmospheric Pressure Sounds Intense
- AdkinsJr
- · Replies 3 ·
An Experiment Consists of Pulling a Heavy Wooden Block Across a Level Surface
- jli10
- · Replies 5 ·
What Determines the Maximum Compression of a Spring in an Elastic Collision?
- phizics09
- · Replies 3 ·
Plank and torque, problem with finding center mass
- paul11
- · Replies 3 ·