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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Are gamma rays more dangerous than alpha or beta particles?
- pivoxa15
- · Replies 3 ·
Isobaric Process: del(H) = mC(v)dT + (P.dV)/J
- Amith2006
- · Replies 2 ·
Units of C(p) and C(v) in equation (1) are Joule/Kilogram-Kelvin.
- Amith2006
- · Replies 2 ·
Is Strain a Scalar or Tensor Quantity?
- adabistanesoophia
- · Replies 13 ·
Why Pressure is a scalar quantity?
- adabistanesoophia
- · Replies 6 ·
Energy conversion of a falling bob
- lingling
- · Replies 1 ·
Calculating Theta in a Rotating Symmetric System
- Parallel
- · Replies 7 ·
Find Energy of 2kg Stone After Projection from 15m Cliff
- lingling
- · Replies 3 ·
Why
- lennyp
- · Replies 4 ·
Calculating Torque: Window Washer Question
- kitty9035
- · Replies 3 ·
Center of mass gravity problem
- someone1
- · Replies 13 ·
Isothermal Temperature: Real Life Examples of Constant Heat Flow
- turdferguson
- · Replies 1 ·
What is the rotational inertia of a cube when rotated about an edge?
- montreal1775
- · Replies 11 ·
Ideal Gas Law + 1st Law of Thermodynamics
- twotaileddemon
- · Replies 9 ·
Looking for Introductory Books on Crystallography, Thermodynamics, and Phonons?
- NotMrX
- · Replies 1 ·
How to Calculate Distance Traveled with Conservation of Energy
- joker_900
- · Replies 3 ·
A stone thrown straight up how much time before it reaches a certain height?
- niki4d
- · Replies 5 ·
2 questions regarding circular motion and the law of gravity
- Koolaid
- · Replies 10 ·
Bouncing ball elastic collision
- anand
- · Replies 2 ·
Why does an air cavity between brick walls insulate from heat?
- pivoxa15
- · Replies 11 ·
Elementary Thermodynamics Question
- Steven925
- · Replies 2 ·
Springlauncher And Projectile Motion
- springlauncher
- · Replies 15 ·
Energy imparted and energy transferred
- _Andreas
- · Replies 5 ·
How to solve an elastic collision problem?
- Jatsix30
- · Replies 5 ·
How to Calculate Time and Displacement for a Horizontally Thrown Stone?
- hisoko
- · Replies 6 ·
Potential Differences in a Uniform Electric Field
- lizzyb
- · Replies 3 ·
What is the acceleration of a block on a frictionless surface?
- dirtybirdhouse183
- · Replies 3 ·
Problem with Theory of Resistance
- Noesis
- · Replies 8 ·
Acceleration of Cart Rolling Down Incline
- Dorothy Weglend
- · Replies 6 ·
What is the gravitational force of attraction between a particle and a rod?
- tech_guru
- · Replies 1 ·
Pendulum, electic field, equilibrium
- pompey
- · Replies 6 ·
Why Is There No Gravitational Force Inside a Solid Sphere?
- Fallen Seraph
- · Replies 12 ·
Vector Analysis using Graphical and Analytical
- zbam
- · Replies 3 ·
Finding distance when force varies with time
- Xamfy19
- · Replies 2 ·
How Do You Calculate the Time and Distance of a Crate in Freefall from a Plane?
- Mr Matt
- · Replies 6 ·
How Does Sediment Redistribution from Rivers Affect Earth's Angular Velocity?
- physics1331
- · Replies 1 ·
Two problems i just can't get
- prettyinpink
- · Replies 15 ·
Vertical throw in earth's field of gravity
- covers
- · Replies 5 ·
Uniform Horizontal Circular Motion
- SalParadise17
- · Replies 3 ·
Measuring intensity of a shadow
- krateesh
- · Replies 2 ·
How do I find the work function of a metal using black body radiation?
- Amith2006
- · Replies 2 ·
Elementary Charge: Mu C, mC and Force Calculation
- Fusilli_Jerry89
- · Replies 3 ·
Finding frictional force and F1 from a graph
- Dexer
- · Replies 1 ·
Angular momentum, moment of inertia etc.
- Zell2
- · Replies 9 ·
What is the rate of change of acceleration called?
- disregardthat
- · Replies 16 ·
Questions relating to motion in a plane
- pharm89
- · Replies 1 ·
Solving a Biot-Savart Problem: Idx, r and dB
- ermines
- · Replies 2 ·
Newton's Laws of Motion on a car
- pharm89
- · Replies 5 ·
Sliding to Rolling motion problem.
- Dorothy Weglend
- · Replies 8 ·
What else should I calculate for a bouncing ball dynamics project?
- boredooom
- · Replies 1 ·
What Should Be Included in AS-Level Physics Sensor Coursework?
- john89
- · Replies 1 ·
Finding initial energy level for 388-nm hydrogen emission
- crimsondarkn
- · Replies 1 ·
Solving a Monatomic Gas Cooling Problem
- rgo
- · Replies 2 ·
Help checking olympiad physics answers across 10 topics
- ritwik06
- · Replies 3 ·
Rising Air Bubble in a River: Calculating Radius
- anand
- · Replies 4 ·
Why is the Kitchen Floor Around a Refrigerator Warmer?
- pivoxa15
- · Replies 2 ·
Can boiling water effectively sterilize a clinical thermometer?
- pivoxa15
- · Replies 14 ·
How Is Electric Flux Calculated for a Cone in a Uniform Field?
- lizzyb
- · Replies 1 ·
Static friction force needed to move a 0.50 kg paperweight
- ~DarkAngel
- · Replies 9 ·
Extremely annoying question, average velocity related
- dejan
- · Replies 2 ·
What is the resistivity of paper?
- TicTac2
- · Replies 10 ·
Why does frost damage plants and how does spraying water help?
- pivoxa15
- · Replies 2 ·
Does the Aluminum Tray Affect Freezing Time in a Fridge?
- pivoxa15
- · Replies 2 ·
Where does the heat come from when a liquid freezes?
- pivoxa15
- · Replies 2 ·
Collision of Two Hard Spheres: Solving the Center of Mass Problem
- hkyriazi
- · Replies 2 ·
Calculating the Step of a Rolling Ball
- Weave
- · Replies 8 ·
Understanding Weight and Acceleration in a Moving Car
- NotPhysicsNinja
- · Replies 2 ·
How Does Wheel Size Affect the Force Needed in Motorcycle Thrust?
- Ascetic Anchorite
- · Replies 3 ·
Rod and point mass collision: angular velocity and stationary point
- phalanx123
- · Replies 5 ·
Examples of turning moments with wheels and wrenches
- blaziken's_charizard
- · Replies 9 ·
What is the Relationship between Ticker-Tape Timer Tapes and Average Velocity?
- lingling
- · Replies 2 ·
Potential Energy of 2 Masses Connected by a String - Find Theta
- Parallel
- · Replies 4 ·
How Do You Calculate Additional Wavelengths in an Emission Spectrum?
- crimsondarkn
- · Replies 5 ·
Will the Fireman See the Explosion of His Rocket?
- japam
- · Replies 9 ·
Why does increasing oven temperature cook food faster?
- pivoxa15
- · Replies 7 ·
Relative factor, what does the number 1 stand for?
- disregardthat
- · Replies 11 ·
Qualitative properties of the ecological one-dimensional map x_n+1 = x_n*e^(r(1-x_n))
- sapiental
- · Replies 2 ·
Finding the Next Collision Point in an Elastic Collision Problem
- OVB
- · Replies 2 ·
How Do Moving Conductors and Coils Interact with Magnetic Fields?
- astronomyabc
- · Replies 1 ·
"Questions and Answers on Physics Concepts
- ritwik06
- · Replies 4 ·
Does Air Pressure Remain Constant in a Submerged, Vertical Pipe?
- GammaRayBurst
- · Replies 9 ·
Design a Propeller for Physics Project
- physics999help
- · Replies 1 ·
What are the physics principles behind how a kazoo produces sound?
- matthew77ask
- · Replies 3 ·
Introductory physics book recommendations for algebra level
- little_ein
- · Replies 6 ·
Egg Drop Experiment strategies
- Blitzy
- · Replies 11 ·
Firefighter climbing 100 m ladder: height, distance, and vertical velocity
- pharm89
- · Replies 9 ·
Spectroscope: dark absorption lines
- crimsondarkn
- · Replies 1 ·
Find the threshold frequency for a calcium
- crimsondarkn
- · Replies 1 ·
Compton scattering momentum conservation derivation
- Brewer
- · Replies 6 ·
Rock thrown horizontally at pigeon 12 m/s, 5 m away
- Aristodol
- · Replies 19 ·
2 problems in Dimensional analysis
- ishwar
- · Replies 1 ·
Why is the cross product defined the way it is?
- Haywire
- · Replies 10 ·
Center of mass acceleration for a dropped and fired cannonball
- kant
- · Replies 9 ·
Calculating Force at Left Point of Support on Bridge
- kitty9035
- · Replies 3 ·
Normal force on bridge supports with truck at 29m
- kitty9035
- · Replies 2 ·
Problem about rc and lr circuits
- kimduncanaimar
- · Replies 3 ·
Mercury flowing through horizontal tube with three different cross-sections
- Ertosthnes
- · Replies 1 ·
Finding tension in connected blocks on an incline
- pucoñe
- · Replies 4 ·
Concave mirrors and reproduction of an actual object
- boris16
- · Replies 1 ·
Electrostatic force on the particle
- young physical
- · Replies 2 ·