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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Explain why long wave radio does not cut out in tunnel.
- bsmm11
- · Replies 1 ·
A Conceptual Difficulty regarding Potentials
- Avi1995
- · Replies 1 ·
What is the Mass of the Late Arrival in a Hot-Air Balloon Ride?
- paste
- · Replies 4 ·
Velocity - conservation of momentum and kinetical energy
- mstud
- · Replies 3 ·
Axis question for electricity experiment question.
- Darth Frodo
- · Replies 1 ·
Speed when Spring is Stretched
- Manni
- · Replies 16 ·
Principle Second Moment Of Area - L shape.
- Roomie
- · Replies 2 ·
Change in internal energy of gas in cylinder with moving piston
- mtayab1994
- · Replies 7 ·
Can a person hanging from a rope pull the person holding the rope up?
- patriots51
- · Replies 2 ·
Conservation of Energy Physics Olympiad
- bazookajason
- · Replies 7 ·
Calculating Momentum of Object R: A Physics Problem
- mirandab17
- · Replies 1 ·
How to make an experiment to find the value of the Drag Coefficient of a Cone?
- ralphy23
- · Replies 1 ·
Physics Olympiad Vector Acceleration
- bazookajason
- · Replies 3 ·
Is the upward Ff of a stationary block on an incline more or less than mg?
- mirandab17
- · Replies 1 ·
How many electrons to transfer between copper spheres for 10^4 N attractive force?
- nicolas.ard
- · Replies 1 ·
What is the phase of the simple harmonic motion at t = 10.0 s?
- MrAlt
- · Replies 1 ·
Calculate the magnitude of the net force on each charge
- jasonbans
- · Replies 2 ·
Projectile Motion Question 1: Calculating Time, Range, and Force in Golf Swing
- billybobay
- · Replies 1 ·
Rate of matter converted to energy
- PhysicsMike
- · Replies 1 ·
Answering Questions on Graph of Toy Car Velocity
- billybobay
- · Replies 1 ·
Quadratic Equation - I don't know how to put this in a formula
- Emily-x
- · Replies 8 ·
Internal energy and heat question.
- lionely
- · Replies 2 ·
Work and spring constant questions?
- bbanas0695
- · Replies 4 ·
Relationship between specific heat capacity and power
- Koenn
- · Replies 1 ·
Confusion with rope tension and monkeys
- ja!mee
- · Replies 1 ·
What Are the Different Forms and Properties of Energy?
- amyheartgrl
- · Replies 5 ·
Snell's Law for Light and Sound
- sparkle123
- · Replies 4 ·
Calculating Uncertainty in Spring Period Measurement
- aaaa202
- · Replies 1 ·
Measuring the speed of the moon
- bobsmith76
- · Replies 7 ·
How Do You Calculate Velocities in a Three-Ball Elastic Collision?
- Emily-x
- · Replies 5 ·
Finding torque on a seesaw when one person jumps off
- paperdoll
- · Replies 3 ·
Moment of Inertia of a Conical shell
- garis
- · Replies 4 ·
Maximum Acceleration along Parabolic Curve
- mrkrgn
- · Replies 10 ·
Counterweight in An Elevator System
- physicsisgrea
- · Replies 1 ·
Stone dropped then thrown at two different times hitting water simultaneously
- novice@physics
- · Replies 7 ·
Do objects have the same kinetic energy in all inertial reference frames?
- kikko
- · Replies 4 ·
Cylinder rolling on accelerating plank without slipping
- charlesc56
- · Replies 5 ·
Solve Coupled Oscillator Problem from Goldstein's Classical Mechanics
- physicsjock
- · Replies 1 ·
Calculating the Velocity at the bottom of a Pendulums Trajectory.
- R3id
- · Replies 1 ·
Coefficient of friction from braking distance and initial speed
- anikam
- · Replies 3 ·
Eigenvalues and eigenvectors of observables
- Fixxxer125
- · Replies 3 ·
Why use r21 instead of r12 in Coulomb's law for F21
- logearav
- · Replies 8 ·
A conducting wire has a resistivity
- Jay9313
- · Replies 1 ·
Calculating the maximum load a lorry can lift
- sharris
- · Replies 6 ·
Potential difference between points a and b with switch open
- Jay9313
- · Replies 7 ·
Car Collision - Which car was speeding?
- mAbubakr
- · Replies 7 ·
Solving Rectilinear Motion: Find Velocity & Position
- .~!@#
- · Replies 2 ·
Calculating Grams of Helium Needed for Blimp to Rise
- Myung
- · Replies 5 ·
Force constant for a floating raft acting as a spring
- nukeman
- · Replies 3 ·
Frequency of oscillation for a floating raft after a man steps off
- nukeman
- · Replies 2 ·
How do you find the initial phase angle?
- nukeman
- · Replies 3 ·
Charge distribution when conducting spheres are connected by wire
- faqoosy
- · Replies 1 ·
Work Power Engergy Thrown Toilet Roll Problem
- jojo711
- · Replies 5 ·
*Simple frequency and period question - Thanks
- nukeman
- · Replies 3 ·
Index of refraction and speed of light
- Yusufzai
- · Replies 2 ·
Heat loss correction in thermal conductivity calculation
- Zhao_1911
- · Replies 1 ·
Position-time graphs and tangent lines
- supernova1203
- · Replies 4 ·
Calculating time from 0-75meter with power and weight.
- palaa87
- · Replies 1 ·
The Physics of Motion: Steel Ball Bearing on a Frictionless Surface
- Mr C
- · Replies 1 ·
Pascal's Principle with Hydraulic Pumps
- Myung
- · Replies 21 ·
Problem Solving about Archimedes' Principle
- frozonecom
- · Replies 10 ·
Acceleration of objects related to moment of inertia
- songoku
- · Replies 11 ·
Spring constant and length of string. *Need Explanation*
- Whitetiger101
- · Replies 2 ·
Vector components on Tilted Axis
- LearninDaMath
- · Replies 1 ·
Which Lockers Stay Open in Percy's Locker Challenge?
- 17109007
- · Replies 2 ·
Understanding Work, Friction, and Internal Energy
- chiddler
- · Replies 16 ·
Total Angular Momentum of 2 connected falling bodies.
- xtinch
- · Replies 5 ·
Universal gravitational problem
- anna sung
- · Replies 6 ·
I just came across a question in MM that said what is the color of the
- steve357
- · Replies 2 ·
The two media are lossless dielectrics with n1>n2
- tony8
- · Replies 3 ·
Rocket motion - conservation of momentum
- bensondros
- · Replies 1 ·
Measurement of Temperature question.
- lionely
- · Replies 13 ·
Static Friction: Max Force Magnitude Applied?
- celiachu
- · Replies 1 ·
Why doesn't the pressure force equal buoyancy at some depth?
- Darth Frodo
- · Replies 7 ·
Rotational Energy, Rolling downhill
- Elysian
- · Replies 1 ·
Why doesn't a string pulling both masses compress the spring twice?
- sparkle123
- · Replies 8 ·
Rotational Motion: Finding Angle of Chalk Line on Rotating Bicycle Wheel
- AJDangles
- · Replies 4 ·
Calculating Mass of Dry Wood in Buoyancy Problem
- sakebu
- · Replies 1 ·
Work and Power for a Plane Engine
- jojo711
- · Replies 5 ·
Determine the direction of induced current in a wire
- phosgene
- · Replies 3 ·
Building a self contained device for project
- aceface1307
- · Replies 1 ·
Why does losing weight help a bug grip a rotating record?
- DJ_Froyke
- · Replies 1 ·
Relativity Question Regarding Muons in movement
- HarleyM
- · Replies 8 ·
Force of falling coil hitting ground after 0.75 seconds
- gretchenm
- · Replies 8 ·
Box sliding up 25° inclined plane with friction
- jami8337
- · Replies 5 ·
Biot-Savart's law of magnetic field electromagnetic fields
- Alhussein
- · Replies 3 ·
How Does Magnetic Field Orientation Affect Torque on a Solenoid?
- jcvince17
- · Replies 3 ·
Missile fired horizontally from 50m: time, distance, and motion analysis
- allicat
- · Replies 13 ·
Calculate the potential energy of a uniformly-charged sphere
- Aesteus
- · Replies 1 ·
How Does Wire Diameter Affect Wave Speed?
- freeofwork
- · Replies 31 ·
Calculate the field within a hole on a charged sphere
- Aesteus
- · Replies 2 ·
Calculate the p.d. between two points
- bsmm11
- · Replies 1 ·
What is Nonzero Acceleration and How to Find the Lowest Value?
- billybobay
- · Replies 1 ·
Rotational Kinematics: Falling Rod
- Abbandon
- · Replies 4 ·
Work and energy for 80N force accelerating 6kg mass over 5m
- charger9198
- · Replies 10 ·
Verifying Direction of Forces in 3 Situations
- risto
- · Replies 8 ·
Electrostatic charge between a na+ ion and a cl- ion
- flamewolf393
- · Replies 3 ·
Can You Attach a Metal Rod to a Stretchable Spring for a Horizontal Launcher?
- whoareyou
- · Replies 3 ·
What is the tension in an aluminum wire with a given radius and wave speed?
- freeofwork
- · Replies 1 ·
Calculating Impulse and Speed with a Variable Force
- logan9691
- · Replies 2 ·