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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Block sliding down an incline - Find the Work
- mb85
- · Replies 2 ·
Why does resonance in Kundts tube differ from theoretical calculations?
- Alec
- · Replies 14 ·
Sound level drop needed for jet engine to chainsaw noise
- emma123
- · Replies 2 ·
How Do You Calculate Work Done by a Variable Force Along a Displacement?
- Jacob87411
- · Replies 2 ·
Calculating Spring Compression from a Collision with No Friction
- atomant
- · Replies 6 ·
Understanding Orbital Motion with Polar Coordinates
- andrevdh
- · Replies 5 ·
HY 607: Finding the Angle for Resultant Force of Two Forces
- lektor
- · Replies 4 ·
Resistivity of a wire - AS coursework
- r0manticide17
- · Replies 5 ·
Proton moving eastward at Earth's magnetic equator
- kevinlikesphysics
- · Replies 3 ·
How Can You Calculate the Original Length of a Simple Pendulum?
- John O' Meara
- · Replies 1 ·
How Do You Calculate a Particle's Average Velocity?
- markow202
- · Replies 3 ·
Calculating the Intersection of Two Stones Dropped from a Cliff
- John O' Meara
- · Replies 1 ·
How Does Constant Power Affect Car Acceleration Times?
- sauri
- · Replies 2 ·
Finding final temperature when ice at -10°C is dropped into water at 20°C
- dan greig
- · Replies 1 ·
Where can I find equations for angular velocity and rotational motion
- johnny872005
- · Replies 2 ·
E field from two charged line segments on y-axis
- Corneo
- · Replies 8 ·
Solve the Stone Drop Problem: Acceleration of 9.8m/s^2
- emma123
- · Replies 1 ·
Time taken for Bullet to pass Through Block
- jeffholmes1
- · Replies 4 ·
Finding the Mass Combination for 1/2 g Acceleration in an Atwood Machine
- blimkie
- · Replies 5 ·
Why do soldiers break step when crossing bridges?
- emma123
- · Replies 1 ·
How Would a Reduced Earth Radius Affect Its Rotation and Orbit?
- xxxyyyy
- · Replies 5 ·
Calculating % Error on Atwood's Machine Lab
- blimkie
- · Replies 2 ·
Calculating Horizontal Force to Prevent Rice Packet Slippage
- ireneooi
- · Replies 1 ·
Why is AC more lethal than DC at the same RMS voltage?
- hellraiser
- · Replies 6 ·
Understanding Interference Patterns in Three-Slit Diffraction
- kidia
- · Replies 2 ·
Solving Momentum Questions: Two Rolling Golf Balls Collision
- hulkster
- · Replies 2 ·
Refraction angle is half the angle of incidence
- jenc305
- · Replies 2 ·
Solving Force Exerted on Mass by Spring Constant k
- atomant
- · Replies 3 ·
What is the Angular Velocity of a Falling Cube in Unstable Equilibrium?
- Bucky
- · Replies 9 ·
Finding minimum current for copper rod to float in magnetic field
- kevinlikesphysics
- · Replies 4 ·
Finding the relationship between magnetic force and current in parallel wires
- Nothing000
- · Replies 14 ·
Energy decay of a piano string at 262 Hz
- capslock
- · Replies 6 ·
Does current lead or lag voltage in an LCR circuit above/below resonance?
- physicsprasanna
- · Replies 1 ·
Is 1000 m/s² a Realistic Acceleration for a Potato in a PVC Cannon?
- Atticus-Reiper
- · Replies 1 ·
What Is the Speed of an Ice Flake in a Frictionless Hemispherical Bowl?
- mb85
- · Replies 4 ·
Ball rolling down a ramp question again (different than traditional ones)
- libin
- · Replies 28 ·
Relative Velocity - I know the answer - But how to arrive at it?
- nyclio
- · Replies 11 ·
Why Are My Calculations for Electrical Resistance and Current Incorrect?
- jrd007
- · Replies 4 ·
Solve Banked Curve Problem: theta=21deg, Mu=0, r=150m
- N_L_
- · Replies 2 ·
Why does a bright star create a black streak in overexposed CCD images?
- big man
- · Replies 1 ·
Anti-reflection coating thickness for 632.8nm laser on glass lens
- BananaMan
- · Replies 1 ·
Understanding Force Equations: Solving for Weight, Normal, and Pulling Forces
- mrserv0n
- · Replies 4 ·
Circular motion and gravitation question
- chazgurl4life
- · Replies 1 ·
Is the Difference of 4x10^-21 Significant?
- sauri
- · Replies 8 ·
Ciruclar motion and gravitation question
- chazgurl4life
- · Replies 12 ·
Calculating Angular Displacement of Ball Bearing
- alex_boothby
- · Replies 2 ·
Plotting T vs M for Hookes Law: Find k
- sauri
- · Replies 4 ·
What is the pressure of outer space?
- capslock
- · Replies 2 ·
How Do You Calculate Freeway Carrying Capacity with Kinematics?
- smbascug
- · Replies 3 ·
Finding the height of a synchronous satellite above Earth's equator
- N_L_
- · Replies 3 ·
Problem combining projectile and circular motion
- kentus
- · Replies 3 ·
Finding surface charge density using the method of images
- Lisa...
- · Replies 3 ·
Is My Calculation of the Radius in a Dielectric Strength Problem Correct?
- kris24tf
- · Replies 1 ·
Boat crossing river and returning to starting point
- nyclio
- · Replies 5 ·
Lagrange point between Earth and Sun using quadratic equation
- Meistro
- · Replies 1 ·
Emf, current, electric fields what direction is everything moving?
- dak246
- · Replies 4 ·
Solving Resistor Problems: How to Find Equivalent Resistances
- robphysics
- · Replies 3 ·
Speed of sound from 480 Hz and 33.34 cm wavelength
- Alec
- · Replies 10 ·
What quantity is measured in grams/second?
- shepwarp
- · Replies 6 ·
Finding lens thickness and radius in Newton's rings with 8 bright rings
- Knicks685
- · Replies 2 ·
Calculating Charge Distribution on Isolated Conducting Spheres
- BananaMan
- · Replies 4 ·
What is the escape speed of a rocket on the far side of Ganymede?
- Meistro
- · Replies 1 ·
Charge on Capacitors in Series After Switch Flipped
- eridanus
- · Replies 2 ·
Potential due to two infinite parallel planes
- Lisa...
- · Replies 1 ·
Little question on the potential in a conducting spherical shell
- Lisa...
- · Replies 2 ·
Calculating Power Needed to Push a Box Across a Floor with Friction
- lailanni
- · Replies 2 ·
Ideas for an experiemnt/practical?
- meee
- · Replies 3 ·
What is the angular speed of the slingshot stone at the moment of release?
- ussjt
- · Replies 15 ·
What is the acceleration of the ball?
- chrish
- · Replies 1 ·
How Does Earth's Diameter Influence Tidal Strength?
- Francis Oliver
- · Replies 1 ·
Why do light rays appear bent on a car window when the sun is at 85 degrees?
- bgodea
- · Replies 13 ·
Comparison of Rotational Kinetic Energies on an Inclined Plane
- urapeach
- · Replies 2 ·
Easy question on wave mechanics
- mmh37
- · Replies 2 ·
Why can a Gaussian surface pass through continuous but not discrete charges?
- physicsprasanna
- · Replies 7 ·
Water flowing out of a straw in a glass using Bernoulli's equation
- Erik_at_DTU
- · Replies 8 ·
Who First Described the Phenomenon of Resonance?
- lilcupcake
- · Replies 2 ·
What is the height to which that ball rebounds?
- avb203796
- · Replies 3 ·
What is the Acceleration at a Point on Earth's Surface at a Given Latitude?
- syang9
- · Replies 3 ·
How High Must a Diver Jump to Experience a Force Five Times Their Weight?
- avb203796
- · Replies 3 ·
Solving Difficult Problem Involving Blocks and Pulley
- Kenchin
- · Replies 1 ·
Finding distance to a sound reflector and wavelength range
- motherlovebone
- · Replies 1 ·
What Is the Pressure Difference in a Pipe When Diameter Changes?
- mrjeffy321
- · Replies 3 ·
Compare acceleration to free fall acceleration
- parttime
- · Replies 3 ·
How Do You Calculate the Component of Force in a Given Direction?
- ness9660
- · Replies 1 ·
Verifying Proton Removal from Sn and Sb Nuclei
- kidia
- · Replies 1 ·
What are some unique senior project ideas in the field of physics?
- thegreenone63
- · Replies 4 ·
How Does an Electric Field Cancel Out Magnetic Force on an Electron?
- jakeowens
- · Replies 4 ·
Velocity and kinetic energy of moving block
- lbcc
- · Replies 1 ·
Finding the second cyclist's speed at perpendicular intersection
- GregA
- · Replies 8 ·
Why is carrying the load on the bicycle safer than on your back?
- QueenFisher
- · Replies 9 ·
Magnitude and direction a uniform magnetic field
- physics_ash82
- · Replies 3 ·
The Amount of Energy released by a tropical thunderstorm
- button2
- · Replies 1 ·
How can I calculate the speed of a block dropped on a spring?
- scavok
- · Replies 4 ·
Find Resonant Frequency of L-R-C Series Circuit
- jakeowens
- · Replies 2 ·
What is the Time for an Object to Orbit the Sun at a Radius of 3*10^6 m?
- avb203796
- · Replies 2 ·
Problem with gravitational acceleration
- Alain12345
- · Replies 2 ·
Calculating Net Force on a Mass in an Equilateral Triangle
- Finns14
- · Replies 5 ·
Does Standing at the Earth's Poles Affect Your Balance?
- skeletonic
- · Replies 1 ·
What is the charge on each sphere in an electrostatic pendulum system?
- AdnamaLeigh
- · Replies 1 ·
How Fast Does a Charged Particle Move Away from a Similarly Charged Sphere?
- juicev85
- · Replies 2 ·