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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Center of Mass and Work Problem
- JoeyM88
- · Replies 1 ·
What are the speed and direction of each ball after the collision?
- RedDanger
- · Replies 1 ·
Calculating Linear and Centripetal Acceleration for a Car in Rotational Motion
- pb23me
- · Replies 4 ·
Moment of inertia of speed governor
- Bugsy23
- · Replies 1 ·
Calculating Angular and Linear Speeds of a Rotating Disk
- whoopie88
- · Replies 12 ·
What is the change in gravitational potential energy
- I Like Pi
- · Replies 7 ·
Moment of intertia for a system
- dragon695
- · Replies 4 ·
Calculate Speed of Clay Ball and 2kg Block After Collision
- AZhang
- · Replies 2 ·
Rotating wheel initial angular velocity given final and time
- vinnyzwrx
- · Replies 2 ·
How Does Mass Distribution Affect the Center of Mass in a Triangle?
- jono90one
- · Replies 3 ·
Conservation of momentum problem?
- I Like Pi
- · Replies 2 ·
Projectile fired from earth. Conservation of energy
- auk411
- · Replies 3 ·
What is the Minimum Speed to Complete a Loop?
- Anza Power
- · Replies 4 ·
Calculating Constant speed of an Elevator Rising
- Millacol88
- · Replies 1 ·
Statics/ equilibrium - angle question
- iloveannaw
- · Replies 12 ·
Sound waves propagation problem
- qban88
- · Replies 2 ·
How Do You Calculate Tension and Hinge Forces in Static Equilibrium?
- lightonahill7
- · Replies 1 ·
Formula for translational angular momentum
- ohheytai
- · Replies 1 ·
How Is Work Calculated for Masses on a Stretched Spring?
- vissh
- · Replies 6 ·
What is the speed of M2 at t=1.75 s in a system of three blocks and two pulleys?
- marco101
- · Replies 12 ·
How Much Weight Can the Crane Safely Lift Without Tipping Over?
- lightonahill7
- · Replies 5 ·
Conservation of energy and rotational energy -
- lightonahill7
- · Replies 3 ·
Classic Angular momentum problem
- TheOriginalTy
- · Replies 5 ·
Newton's Laws, Kinematics, and Friction
- Mindflayer94
- · Replies 1 ·
Find the absolute value of theta 650-theta 420
- ahazen
- · Replies 2 ·
The normal force exerted on a small sphere
- thedaydreamer
- · Replies 2 ·
Calculating Torque for a Robot Wheel: Mass, Acceleration, and Constant Velocity
- elimenohpee
- · Replies 2 ·
Calculating Maximum Compression in a Spring
- zaraox
- · Replies 5 ·
Heat Equation 2D: Conservation of Energy
- jahlin
- · Replies 1 ·
Does Diving into Water Involve Negative Work?
- harp AP 2010
- · Replies 2 ·
Energy required to strip final electron
- BobMcPhysics
- · Replies 1 ·
Determine the kinetic energy of the electron as it leaves the electron gun
- elizabethrae
- · Replies 1 ·
Easy Resultant Velocity Problem
- paularamz
- · Replies 3 ·
Calculating Changes in Water Speed with Kinetic Energy Equations
- McKeavey
- · Replies 2 ·
Nichrome wire resistance problem
- Jakefreese
- · Replies 2 ·
What is the Charge on a Capacitor in an RC Circuit?
- musiliu
- · Replies 5 ·
Show that the sum of the torques at the given point is zero
- VitaX
- · Replies 10 ·
Floating Arm Trebuchet Calculations and Predictions
- Lordbob75
- · Replies 2 ·
Pendulum - maximum kinetic energy, maximum potential energy
- jimmy42
- · Replies 5 ·
What Is the Maximum Extension of the Spring in Simple Harmonic Motion?
- pb23me
- · Replies 30 ·
How Can I Determine Where the Pulses Will Meet on a Stretched Wire?
- dj_werd
- · Replies 3 ·
Getting the magnitude of linear acceleration from angular position equation
- mconnor92
- · Replies 6 ·
Can a Third Sphere with Opposite Charge Achieve Zero Net Force?
- xxabr
- · Replies 6 ·
Finding the Radius of a Thomson Atom in Relation to Hydrogen Atom Radius
- wumple
- · Replies 1 ·
Gr. 12 - Conservation of Momentum in Two Dimensions
- Deceit
- · Replies 4 ·
Falling rod which is fixed at the pin
- issacnewton
- · Replies 6 ·
Constant acceleration car problem
- acg7160
- · Replies 2 ·
How Does a Charged Bullet Respond to Earth's Magnetic Field?
- Faraji
- · Replies 1 ·
Will the Lamp Slide or Tip When Pushed?
- offthewall
- · Replies 1 ·
Confuse about mg cos@ = R or R cos@ = mg
- Scharles
- · Replies 3 ·
Period of oscillations of the disk
- cupcake
- · Replies 4 ·
Calculating velocity of 2 carts after spring between them released?
- m84uily
- · Replies 1 ·
Why Should the Line of Best Fit for a Spring Constant Lab Pass Through (0,0)?
- APysics
- · Replies 1 ·
Question with slope, masses, pulley
- mystmyst
- · Replies 10 ·
What are the Tensions and Accelerations in a Rotating Triangle Mass System?
- Maybe_Memorie
- · Replies 37 ·
The jumping skier (momentum, Newton's laws, energy)
- pinsky
- · Replies 7 ·
Conceptual torque problem with multiple sized pulleys
- crybllrd
- · Replies 1 ·
How Much Force to Apply on m1 to Make m2 Jump Off the Table?
- thoff430
- · Replies 1 ·
What Is the Coefficient of Kinetic Friction in Brenda's Wallpaper Project?
- sunfire249
- · Replies 1 ·
Impact force exerted on a rolling wheel drop from a height
- MechaMZ
- · Replies 1 ·
Conservation of energy and GPE problem
- mmattson07
- · Replies 9 ·
Calculating Force to Accelerate Mass M Without Moving m1 and m2 - Newton's Laws
- thoff430
- · Replies 1 ·
Question with masses, friction, and other forces
- mystmyst
- · Replies 14 ·
Designing a Ballistic Spring System for Measuring Bullet Speed
- killersanta
- · Replies 1 ·
What is the Center of Mass of the Earth + Satellite System?
- smpolisetti
- · Replies 2 ·
Universal Gravitation and a satellite
- Bowenj
- · Replies 2 ·
Finding the Masses of a binary star using the distance, angle and orbital period
- PaulWright
- · Replies 2 ·
String tension varying with distance
- Maybe_Memorie
- · Replies 15 ·
Work Done in moving the plates of a Capacitor
- zorro
- · Replies 10 ·
What is the oscillation frequency of a marble in a parabolic bowl?
- cheimdal
- · Replies 1 ·
Angular speed at bottom of loop
- Paulie71199
- · Replies 2 ·
Elastic Collision: Find Height of m2 After Incline
- Paulie71199
- · Replies 1 ·
Forces on a Solid Disk: Determining F3
- Paulie71199
- · Replies 1 ·
What is the speed of the jet at point B based on the given information?
- r4sph4sp
- · Replies 1 ·
Maximum Velocity for collision given acceleration
- Tearsandrille
- · Replies 1 ·
Static friction coefficient on different slopes
- Rosengrip
- · Replies 8 ·
How Much Ethanol Can Be Added to a Pressurized Tank?
- anubis01
- · Replies 3 ·
So, you can't add them unless you convert one to the other.
- miked42
- · Replies 1 ·
How do I calculate the maximum height of a pendulum swing?
- kenny521
- · Replies 1 ·
Can someone me out with free body diagrams
- mystmyst
- · Replies 6 ·
Momentum Q: Determine Speed, Friction of Metal Bar
- Atran
- · Replies 1 ·
How to Calculate Acceleration on an Inclined Slide?
- ecyka2000
- · Replies 1 ·
Resolving Power and minimum seperation
- ahazen
- · Replies 5 ·
Potential Difference between concentric shells
- zorro
- · Replies 4 ·
How Does Static Friction Affect Energy Equations in Rolling Motion?
- 240rr
- · Replies 3 ·
How forces work (normal and friction)
- mystmyst
- · Replies 7 ·
Faster than 'c' measurements that do not violate relativity theory
- FinestHour86
- · Replies 1 ·
Determining resistances in circuits
- thereddevils
- · Replies 1 ·
Number of diffracted orders produced
- aurao2003
- · Replies 2 ·
Finding Dissociation energy , path of the particle involved
- imvaibhav
- · Replies 1 ·
Can anyone help me answer these moment of inertia questions please?
- sowmit
- · Replies 1 ·
Solving Clay Collision: Final Speed & Swing Height
- lemonlimesoap
- · Replies 2 ·
What is the Multiplicity of a Macrostate in a Two-State Atomic System?
- kate31
- · Replies 1 ·
Finding the Angle and Speed in a Game of Pool
- VitaX
- · Replies 5 ·
Conservation of Mechanical Energy
- VitaX
- · Replies 3 ·
Correct usage of Gauss's Theorem?
- zorro
- · Replies 6 ·
Is My Approach to Solving Gauss' Law for a Cylindrical Shell Correct?
- Tentothe
- · Replies 6 ·
Find the electric field at the point given
- xxabr
- · Replies 3 ·
Solve Airplane & Wind Homework: 640m/s at 57o E of S?
- nagaromo
- · Replies 1 ·
Asteroid Hits Earth Conservation of angular momentum
- FahimP
- · Replies 2 ·