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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Moment of inertia of a beer can
- Zack-UK
- · Replies 1 ·
Multi-variable quadratic question
- Ragoza
- · Replies 3 ·
When to use cos or sin in physics problems
- Raza
- · Replies 3 ·
Calculate Y Angle in Games Project C++ Code
- MstWntd
- · Replies 7 ·
Train decelerating from 60 m/s over 600 m
- Run Haridan
- · Replies 4 ·
Conical pendulum: finding tension and angle with horizontal
- swede5670
- · Replies 11 ·
Solve Maximum Number of Fringes Observed from Laser Beam on Grating
- noobie!
- · Replies 4 ·
What Is the Oscillation Amplitude at Various Points on a Vibrating String?
- NivekOh
- · Replies 1 ·
Calculating Average Power for a 1500kg Car Going from 0 to 90km/h in 5s
- bob24
- · Replies 4 ·
Calculating Work and Power: Solving a Tractor Pull Problem
- bob24
- · Replies 2 ·
Bullet hits pendulum bob: minimum velocity for vertical loop
- compwiz3000
- · Replies 6 ·
How do you calculate the speed of a bullet using a ballistic spring system?
- 1831
- · Replies 2 ·
Kinetic Energy - Force done by friction
- RichardCory
- · Replies 6 ·
Calculating Energies in Box Potential
- Messy
- · Replies 1 ·
Solving Explosion Problem: Calculate Kinetic Energy of Horizontal Piece
- Cind20
- · Replies 3 ·
Relating Work Function and Wavelength
- ri0t
- · Replies 4 ·
Expression for induced ε from reducing Loop
- quietriot1006
- · Replies 5 ·
Strategies for Solving Uniform Motion Problems
- Amano
- · Replies 2 ·
Calculating Rollercoaster Speed and Spring Constant
- fergust
- · Replies 7 ·
How many square centimeters is a square meter?
- Haibara Ai
- · Replies 5 ·
People in history who determined how to use and calculate energy?
- Corinne13
- · Replies 2 ·
How Do You Apply Calculus to Determine Force in Physics?
- glennpagano44
- · Replies 2 ·
Simple Harmonic motion of vertical spring.
- Kizaru
- · Replies 3 ·
How Is the Average Force Calculated When a Pile Driver Hits a Beam?
- -EquinoX-
- · Replies 5 ·
Joules required to accelerate 1kg of mass
- ally1h
- · Replies 1 ·
How Does Rotation in a Spinning Space Station Affect Astronauts?
- ahrog
- · Replies 1 ·
Isothermal Expansion - Work and Heat
- kristibella
- · Replies 11 ·
How to Calculate Flow Rate with Given Parameters?
- Sevy35
- · Replies 2 ·
Resolving Questions - Elements of Electromagnetics Sadiku Chapter 4
- feras
- · Replies 3 ·
How can I expand my extended essay subject?
- nrslmz
- · Replies 5 ·
Can a planet exist with such small radius and high acceleration rate?
- alpha372
- · Replies 19 ·
How Is Momentum Conserved in a Golf Ball and Clubhead Collision?
- davedave
- · Replies 2 ·
If a moving spear contracts to half length, what is its relativistic mass?
- ally1h
- · Replies 1 ·
Roller coaster at bottom of dip weight increases 50%?
- BC2210
- · Replies 4 ·
Mass of a particle at speed of light
- ally1h
- · Replies 2 ·
How Do You Calculate Rider Speed and Safety on a Centrifuge Carnival Ride?
- ahrog
- · Replies 1 ·
How Do Electrons Impact Screen Pressure in Televisions?
- moeraeleizhaj
- · Replies 1 ·
Vertical velocity of a soccer ball
- ahrog
- · Replies 5 ·
Rigid body/ force applied on a wheel
- fluidistic
- · Replies 1 ·
Problem on distance, time and velocity when acceleration is the only given.
- technowar
- · Replies 1 ·
Horizontal and vertical velocity of a projectile at t=2.40s
- Throwback24
- · Replies 8 ·
Rotational Dynamics of a light cup
- asura
- · Replies 1 ·
Solving the Work Needed to Move a Bowling Ball via Conservation of Momentum
- reallybanana
- · Replies 2 ·
Magnetic Force on Moving Charges
- AcidicVision
- · Replies 1 ·
Electric Potential (Conceptual question)
- Fizickstudent
- · Replies 1 ·
At what angle θ will the cylinder of height h and radius r will tumble?
- Lebkuchen22
- · Replies 3 ·
Find max mass regarding circular motion and tension
- freepancakes
- · Replies 5 ·
Free Body Diagram for a Baseball Hit by a Bat
- fishguts
- · Replies 6 ·
Relative velocity and conservation of momentum
- Maiia
- · Replies 11 ·
What is the magnitude and direction of impulse in a ball-bat collision?
- harvellt
- · Replies 7 ·
Pressure at the center of a planet
- Psycopathak
- · Replies 2 ·
Semi circular prism and light rays
- hallowon
- · Replies 1 ·
Calculate Work Done by Horse on Level Snowy Surface
- Shaunzio
- · Replies 2 ·
Circular Motion - Finding Tension
- swede5670
- · Replies 2 ·
Hockey stick and puck collision
- madman143
- · Replies 5 ·
Buoyancy of Spheres: max mass added without sinking
- BennyQuixote
- · Replies 1 ·
What is the minimum height for the track to make the ball go around the loop?
- needhlpcalc
- · Replies 5 ·
Trouble with mechanical physics
- fixixisfunmf
- · Replies 1 ·
Speed of sound in seawater at 25°C
- mikefitz
- · Replies 6 ·
What is the net force on the car?
- pillanoid
- · Replies 3 ·
Astronaut's Maximum Distance from Shuttle Due to Line Breakage
- Maiia
- · Replies 1 ·
What Is the Average Force Exerted by the Bat on the Baseball?
- -EquinoX-
- · Replies 2 ·
Equipartition Theorem and Microscopic Motion question
- doggieslover
- · Replies 4 ·
Speed of water from a sprinkley
- cashmoney805
- · Replies 8 ·
Does a vertical mass-spring system adhere to the law of conservation of energy?
- ahmhum
- · Replies 11 ·
Calculating Induced Current in a Rectangular Loop
- shannon
- · Replies 1 ·
Mechanical Energy in a parachute
- grizzlyjoker
- · Replies 3 ·
Why does angular velocity in rad/s give force in Newtons?
- lylos
- · Replies 3 ·
Energy conversions - wind up radio
- dukg08
- · Replies 8 ·
Why does water defy appear to defy gravity when evaporating?
- azzkika
- · Replies 3 ·
How Do You Calculate Intersection Points of Two Graphs?
- sam1390
- · Replies 1 ·
How to Calculate Axle Diameter for Efficient Cement Lifting?
- cantgetno
- · Replies 9 ·
How Does Doubling the Radius of a String Affect Its Wave Speed?
- aa1515
- · Replies 1 ·
What is the center of mass of a cone?
- Nightrider519
- · Replies 9 ·
Aircraft Direction to Fly North: Solve Airplane Problem
- Throwback24
- · Replies 3 ·
Does doubling the frequency of a wave source double the speed of the waves?
- DarylMBCP
- · Replies 11 ·
Wind Resistance and/or Wind Accumulative Value
- Nighthawk1
- · Replies 1 ·
Universal Gravitation Equation and Graphing Calculator
- Farcry25
- · Replies 1 ·
Is My Solution Correct for Solving Temperature in This Equation?
- livblue23
- · Replies 1 ·
Direct substitution in the analysis of periodic motion
- gsmith12
- · Replies 3 ·
What force does the scale display in Newtons?
- dreamgirl
- · Replies 3 ·
Finding the Amplitude of a spring (Simple Harmonic Motion)
- Maxx573
- · Replies 7 ·
Volume of ice immersed in water to that in kerosene oil
- iitjee10
- · Replies 10 ·
Ball colliding elastically with stick: which quantities conserve?
- iitjee10
- · Replies 3 ·
How Far Will Springs Compress Under Load?
- Mebmt
- · Replies 13 ·
2 bullets fired at the same time - find kinetic energies
- nn3568
- · Replies 4 ·
What is the Mass and Density of the Asteroid Ida and its Satellite?
- Nightrider519
- · Replies 2 ·
Hydraulic lift inquiry big problem
- mrjoe2
- · Replies 1 ·
Physics 11 question - its probs rly easy
- roxxyroxx
- · Replies 7 ·
Spring oscillator: force and energy at equilibrium vs maximum displacement
- livblue23
- · Replies 2 ·
Question regarding the Biot-Savart Law and a Circular Loop
- TFM
- · Replies 23 ·
College physics by serway is it any good?
- skjhlkj
- · Replies 5 ·
Time for cart, hoop, and cylinder rolling down incline
- Nightrider519
- · Replies 4 ·
Monochromatic Light Through Two Microscope Slides
- MightyMan11
- · Replies 3 ·
How can the time variable be isolated in the equation D=VoT+1/2AT^2?
- rigory
- · Replies 4 ·
Roller coaster car energy problem
- nns91
- · Replies 3 ·
Does the internal energy of the combined system change when ice melts?
- JoshMG
- · Replies 6 ·
How to draw 0.5 amp of current from a 10Ah battery
- dave226
- · Replies 1 ·
Tennis ball elastic collision with two moving balls
- Bamshakalaka
- · Replies 6 ·
How Does Impulse Affect Particle Velocity?
- DollarBill
- · Replies 1 ·