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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How Deep Is the Cavern if a Pebble Takes 1.8 Seconds to Hit the Water?
- domdom
- · Replies 1 ·
Newton's Law Problem: Calculating Acceleration on an Inclined Plane
- Smile101
- · Replies 5 ·
Equivalent Capacitance (Not in series or parallel)
- denniegst
- · Replies 16 ·
Minimum mass of box pulled by rope at 31 degrees
- Matt1234
- · Replies 5 ·
How to find force vector from kinetic energy without using F = ma
- RaStevey
- · Replies 13 ·
What Forces Act on a Charge at the Corner of a Rectangle?
- october2118
- · Replies 1 ·
Lead and glass rods at different temperatures with same length
- jmb07
- · Replies 3 ·
What is the Mass Density of Air at 1 atm and -50°C?
- jmb07
- · Replies 3 ·
Forces and elongation in three steel bars on rigid member K
- TA1068
- · Replies 2 ·
You slowly back away from a plane mirror at a speed of 0.10 m/s
- jlmessick88
- · Replies 2 ·
Why Electric Fields are perpendicular
- KatieD
- · Replies 6 ·
Find position vector from given velocity
- Skuzzy
- · Replies 5 ·
Conceptual Standing Wave Question
- MyNewPony
- · Replies 1 ·
Finding Lambda 4 for mechanical harmonics
- Iwanttolearn7
- · Replies 1 ·
How Long Can a Leaking Boat Loaded with 1200kg Float Before Sinking?
- leena19
- · Replies 3 ·
What is the significance of the 2 - 3 sigma limit in statistical measurements?
- S.P.P
- · Replies 3 ·
Density of the sun as a white dwarf.
- Bottomsouth
- · Replies 6 ·
Can ratio and proportion rules apply to tangential and angular quantities?
- harini_5
- · Replies 3 ·
Freq. of small oscillations in two pendulums
- ejs12006
- · Replies 3 ·
Calculating Average Power for a 51 kg Woman Running Upstairs
- Cheddar
- · Replies 2 ·
Electric potential at the origin
- physics10189
- · Replies 12 ·
Ship with propellers: mass flow, force, acceleration, and flooding
- leena19
- · Replies 10 ·
How Do You Calculate the Equivalent Capacitance of a Complex Circuit?
- kyrax
- · Replies 1 ·
Tower height if dropped object would take half time if thrown at 60 m/s
- Smile101
- · Replies 15 ·
Gauss's Law: Solve Cylindrical Shell Problem
- jghlee
- · Replies 5 ·
Find the Time and write it as a power
- waxer1987
- · Replies 2 ·
Stone dropped in a well: total time for drop and sound return is 2.30 s
- green11
- · Replies 11 ·
Equation for gravitational field intensity from hanging mass experiment
- waxer1987
- · Replies 1 ·
What is the reading shown by the ammeter?
- leena19
- · Replies 5 ·
Why Does Cherenkov Radiation Form a Ring in a Concave Mirror Setup?
- ideasrule
- · Replies 5 ·
Dynamics - forces in two objects, Newton's third law
- shaools
- · Replies 21 ·
How Does Vector Addition Apply in Calculating River Crossing Distances?
- dance_sg
- · Replies 4 ·
Distance and displacement, relative motion
- dance_sg
- · Replies 3 ·
Finding amplitude and phase in sum of sinusoids
- jeff1evesque
- · Replies 3 ·
How Far Does the Student Swim Across the River?
- dance_sg
- · Replies 2 ·
How Do You Calculate the Net Force and Angle in Vector Addition?
- dance_sg
- · Replies 2 ·
How Does River Flow Affect a Swimmer's Resultant Velocity?
- dance_sg
- · Replies 4 ·
Rotational Dynamics - Algebra Based
- physicistj
- · Replies 1 ·
Cannon Question: Loose Cannon Velocity
- JessGold
- · Replies 1 ·
Calculating pipe size for closed loop watering system
- Ice_ca
- · Replies 2 ·
Direction of current for Kirchhoff's Current Law
- filerosfer
- · Replies 8 ·
How Do You Calculate the Tension Tx in a Multi-Mass System?
- iamtrojan3
- · Replies 2 ·
Why does the kinematic equation use t² for the triangular area under acceleration?
- Matt1234
- · Replies 2 ·
Using area of pv graph to find work
- Iwanttolearn7
- · Replies 5 ·
Solve Network of Resistors: R1, R2, R3, R4, V=6V
- sarah895
- · Replies 3 ·
Unit vector parallel to plane and perpendicular to another vector
- jeff1evesque
- · Replies 9 ·
Kinetic energy of rotating merry-go-round after 3 seconds
- Cluelessone
- · Replies 2 ·
Adiabatic Process in a heat engine
- talaroue
- · Replies 5 ·
Coulombs Law Problem - Find the Force
- KatieD
- · Replies 8 ·
Solving Velocity Vectors Problems: Tips & Tricks
- nevik
- · Replies 10 ·
Solving cubic roots (with imaginary number)
- jeff1evesque
- · Replies 7 ·
What is the initial speed of a bullet fired into a ballistic pendulum?
- balling12
- · Replies 6 ·
Calculating Tire Revolutions and Angular Speed in a Braking Car
- balling12
- · Replies 3 ·
Why Is the Acceleration Not Zero at the Highest Point of a Thrown Baseball?
- demonelite123
- · Replies 1 ·
What Is the Loss of Mechanical Energy in a Car Collision?
- Iwanttolearn7
- · Replies 7 ·
Driven Oscillation- Motion of a particle, with given equation.
- Self-Help
- · Replies 2 ·
Question on simple acceleration concept
- test2morrow
- · Replies 11 ·
Why voltage in a circuit is in a sinusoid form?
- jeff1evesque
- · Replies 4 ·
Rectilinear Motion of Particle
- adashiu
- · Replies 6 ·
Range of values of force for string to remain in tension
- Ljungberg92
- · Replies 11 ·
Distance traveled = Average velocity x time
- Voltman
- · Replies 2 ·
Calculating the Angular Size of an Image with a Magnifying Glass
- kbray278
- · Replies 3 ·
Newtown 2nd law of rotation problem
- Puchinita5
- · Replies 12 ·
Height and Range of a projectile
- clarineterr
- · Replies 5 ·
Maxwell equation, magnnetic induction field question?
- coffeem
- · Replies 6 ·
Projectile motion given theta and x
- tkahn6
- · Replies 3 ·
How Do You Calculate the Focal Length of a Microscope's Eyepiece?
- kbray278
- · Replies 1 ·
Blocks are connected by thin strings with tensions
- NikkiNik
- · Replies 2 ·
A ball is thrown in the air @ 30m/s
- rdmfresno
- · Replies 2 ·
RMS x-component of velocity in argon gas cylinder
- dalson
- · Replies 2 ·
Solving the Pulley Problem: Calculating Ceiling Force
- negatifzeo
- · Replies 4 ·
What Is the Total Displacement and Angle South of West for the Motorist's Trip?
- nevik
- · Replies 1 ·
Solve Mass Suspended from Uniform Boom
- NikkiNik
- · Replies 3 ·
Average Speed = distance/time question.
- rdmfresno
- · Replies 4 ·
Spring constant and oscillation frequency for mass on incline
- NikkiNik
- · Replies 1 ·
Calculating Volume Using Buoyant Forces
- F2m185
- · Replies 2 ·
Calculate the change in entropy of the universe
- Harmony
- · Replies 2 ·
Velocity over time / 2 questions
- rdmfresno
- · Replies 7 ·
Weighing yourself in the elevator
- test2morrow
- · Replies 1 ·
Potential difference and electric fields
- peaceandlove
- · Replies 7 ·
Explaining the Relationship Between Force and Acceleration: Newton's Second Law
- flyingpig
- · Replies 4 ·
How can the boatman cross the river in the shortest time?
- harini_5
- · Replies 3 ·
Why does ignoring cylinder inertia give wrong time for rope acceleration?
- courteous
- · Replies 3 ·
Find the net gravitational force?
- wasi90lk
- · Replies 3 ·
Matrix dot products and phasor applications in circuits
- jeff1evesque
- · Replies 13 ·
Wave optics YOUNG'S DOUBLE SLIT EXPERIMENT
- harini_5
- · Replies 4 ·
What is the length of the inductor?
- mba444
- · Replies 1 ·
Ray diagram for spherical wave reflecting from a plane surface
- ThetaPi
- · Replies 2 ·
Current electricity and finding resistances
- leena19
- · Replies 9 ·
Input and output of an operational amplifier
- ananthu
- · Replies 7 ·
Calculating Point Charge from Kinetic Energy and Electric Potential
- peaceandlove
- · Replies 2 ·
What is the magnitude of the force the first exerts on the second?
- mba444
- · Replies 1 ·
Explain the concept of significant figures?
- I'm
- · Replies 6 ·
Plane speed relative to air at 25° angle and water molecules melting
- Subrosian
- · Replies 2 ·
Electric Field 2: Calculate Electric Flux Through Cube Corner
- leena19
- · Replies 5 ·
SHM(mass suspended vertically on spring)
- nrweis
- · Replies 6 ·
How Do You Calculate Time When Velocity Equals Zero in a Complex Equation?
- math4life
- · Replies 1 ·
Derivations of dimensions problem
- I'm
- · Replies 3 ·
Why is the height change L - L cos(θ) for a ball on a vertical rod?
- Puchinita5
- · Replies 1 ·
Shooting a cannonball over a cliff
- clarineterr
- · Replies 5 ·