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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Calculating Jet Velocity with Kinematic Equations
- deaninator
- · Replies 11 ·
Finding compression distance for mass on spring with initial velocity
- jrdwagas
- · Replies 1 ·
Circular motion: bicycle moving in a circle. Find speed given r and degree
- s1gma
- · Replies 1 ·
How to Prove Vector Identity k = (a+b)(c+d)?
- colerelm1
- · Replies 5 ·
Apollo 13 emergency burn time reversal from 24000 mph
- cverret311
- · Replies 2 ·
Applying an impulse on a dumbbell from one end
- teoferrazzi
- · Replies 30 ·
Powering the Human Brain: How Long Can One Snickers Bar Last?
- tennischick89
- · Replies 2 ·
First law of thermodynamics with negative U, Q, and W
- Sixty3
- · Replies 1 ·
Two boxes; one pushing the other
- Karajovic
- · Replies 14 ·
Tug-of-War Forces: Solving the Rope Problem
- whoopie88
- · Replies 3 ·
How Do You Calculate Reactions at Supports in Equilibrium Problems?
- Cursed
- · Replies 2 ·
Stunt Driver's Car Jump: Minimum Speed Calculation and Angle Adjustment
- Havenater23
- · Replies 2 ·
A ball launched on a imclined plane
- dannyggg2003
- · Replies 2 ·
Spring problem - conservation of energy?
- ksherwood
- · Replies 3 ·
Calculating Speed in Elastic collision
- connie5828
- · Replies 7 ·
Two Boxes on an incline, tied together by a rope, calculuate tension.
- trafficsigns
- · Replies 1 ·
How Does Friction Affect a Car's Maximum Acceleration?
- kneu
- · Replies 3 ·
Velocity vs. Time Graphical Interpretation
- 1337Montage
- · Replies 1 ·
Angular Motion and Young's Modulus
- fajoler
- · Replies 3 ·
Hammer lever force and aluminum wire elongation in circular motion
- Brianjw
- · Replies 13 ·
How to find coefficient of kinetic friction from ramp data
- hfz_105
- · Replies 1 ·
Minimum stopping distance for skydiver at terminal velocity with 75g acceleration limit
- Xman1120
- · Replies 3 ·
How Does Current Direction Affect Force in a Rectangular Loop?
- ahazen
- · Replies 3 ·
How Far Will a Sliding Box Travel After Leaving a Ramp?
- DocDaGeniouss
- · Replies 1 ·
What is her velocity relative to the surface of the ice?
- Waveparticle
- · Replies 3 ·
Effect of Mass and Force on Acceleration and Distance Traveled in Kinematics
- Karajovic
- · Replies 2 ·
Find the acceleration of an object that is attracted to a magnetic field
- moonman239
- · Replies 3 ·
How much deeper does a barge sink when a 400-kg crate is loaded onto it?
- mogibb1
- · Replies 8 ·
Are forces depending on angle and velocity conservative?
- ajlucia
- · Replies 1 ·
Change in atmopheric pressure with height (Thermodynamics)
- Slepton
- · Replies 6 ·
What is the Work Done by Force F on a Moving Object?
- WahooMan
- · Replies 2 ·
Electric Field Integration Outside a Cylinder
- frostmephit
- · Replies 1 ·
Finding temperature through a manometer
- Twoism
- · Replies 2 ·
Relative Velocity of Two Ships: When Is Their Separation Least?
- Aramatheis
- · Replies 5 ·
Finding Maximum Weight on a Ramp with Coefficients of Friction
- kari82
- · Replies 1 ·
Volume of Air in Cylinder at 20°C - Calculating with Ideal Gas Law
- Daniiel
- · Replies 2 ·
Converting vector in cartesian to cylindrical coordinates
- dingo_d
- · Replies 6 ·
Significant Figures and speed of a runner
- Bohring
- · Replies 5 ·
Finding the Density of a Planet using Time
- lanzjohn
- · Replies 5 ·
Finding velocity from force function F(x) = A + Bx
- jumbogala
- · Replies 2 ·
Pressures at the water levels in the two open tanks?
- MechaMZ
- · Replies 1 ·
Forces, involving tension and a pendulum
- ://Justice
- · Replies 10 ·
What is the Force Exerted on a Bathroom Scale in an Elevator on Earth?
- whoopie88
- · Replies 4 ·
Simple harmonic motion [ I have an exam tomorrow morning]
- Telemachus
- · Replies 14 ·
Solving Friction Problem: Minimum Force Needed
- aquila457
- · Replies 2 ·
Maximum angle for machine to pull ice block up frictionless slope
- Runaway
- · Replies 5 ·
Finding the angle to minimize pulling force on a block with friction
- Airsteve0
- · Replies 4 ·
Skier accelerating down a 30° slope with friction
- whoopie88
- · Replies 4 ·
Three boxes in contact pushed by 75 N force
- pb23me
- · Replies 7 ·
How Do You Calculate the Mass of a Blue Whale Using Momentum?
- danield3
- · Replies 1 ·
Electric field inside a conducting cylinder with wire
- Liquidxlax
- · Replies 4 ·
Can Savannah Catch the Accelerating School Bus?
- sbayla31
- · Replies 3 ·
Table cloth pulled from underneath a block?
- draymire
- · Replies 2 ·
Accleration problem - car strikes a tree
- Frosty8
- · Replies 2 ·
Calculating Friction Force of a 4000 kg Truck on a 15° Slope
- kdb004
- · Replies 3 ·
How Do You Correctly Add and Subtract Multiple Vectors?
- k-rod AP 2010
- · Replies 3 ·
How to calculate torque with cross product?
- mohemoto
- · Replies 3 ·
Spring Potential energy, should be easy?
- Patdon10
- · Replies 4 ·
Conservation of Momentum with Friction
- derf709
- · Replies 1 ·
Passive forces and Newton's laws
- tica86
- · Replies 1 ·
Determining the speed of a rocket car
- Solidearth
- · Replies 1 ·
Police car catching speeder with constant acceleration
- moondawg
- · Replies 2 ·
How Is Work and Heat Transfer Calculated in a Polytropic Process for Helium Gas?
- dillonmhudson
- · Replies 3 ·
Physics- center of mass problem ?
- J.live
- · Replies 4 ·
Kinetic Fricion Acceleration Problem
- laxxie
- · Replies 3 ·
Calculating x and y Components of Equilibrium Forces
- kari82
- · Replies 2 ·
How do I find the eigenvalues and eigenvectors of a given matrix?
- LoopQG
- · Replies 7 ·
Time for object to travel 10 m with applied force and friction
- Telemachus
- · Replies 2 ·
How Far Down the Slope Does the Arrow Land?
- Umphreak89
- · Replies 11 ·
Finding Initial velocity given certain variables
- Ryang
- · Replies 6 ·
Final velocity of spring down incline with fricition
- gap0063
- · Replies 1 ·
Calculating Energy for Orbital Deployment
- ashvuck101
- · Replies 1 ·
Calculating momentum when you know mass and KE
- connie5828
- · Replies 5 ·
Acceleration is (-2.0i + 4.0j), velocity is 12 m/s
- new^2^physics
- · Replies 4 ·
Frictional force acting on mass
- demonslayer42
- · Replies 5 ·
Finding the Magnitude and Direction of Force one with the Resultant Given
- Nacha
- · Replies 15 ·
Simple recoil velocity question
- LIZard137
- · Replies 1 ·
Bernoulli's Equation and a water pipe
- Zaros
- · Replies 5 ·
Calculating Work with Kinetic Energy in Orbit
- The_Journey
- · Replies 2 ·
Solving a Physics Problem: Calculating Distance with Kinetic Friction and Work
- rghost90
- · Replies 14 ·
Distance of particle travels from origin, and maximum speed, picture included
- gap0063
- · Replies 5 ·
Cost of setting up a sattelite?
- Zaros
- · Replies 7 ·
Ball completing 2 revolutions inside a cylinder before hitting ground
- roman15
- · Replies 7 ·
Schrodinger ground state wave function
- wrongusername
- · Replies 3 ·
2 boxes stacked, force applied to bottom box
- johnsonc007
- · Replies 1 ·
Current density, resistance and resistivity problem
- ctpengage
- · Replies 4 ·
Centripetal Force Loop-the-loop
- JoshBuntu
- · Replies 3 ·
Length along ramp from end of spring, picture included
- gap0063
- · Replies 6 ·
Theoretical Acceleration of an Atwood machine
- andrewdavis23
- · Replies 6 ·
How Many Turns of Wire Are Needed for a Solenoid with These Specifications?
- ahazen
- · Replies 3 ·
Applying a force perpendicular to an object moving in the x direction.
- pb23me
- · Replies 3 ·
Tension in a 5kg brick lowering at 1.5m/s²
- demonslayer42
- · Replies 3 ·
Find angle between vectors C and D in terms of α, β, and θ
- meanyack
- · Replies 2 ·
Getting an average figure with ±
- Monocerotis
- · Replies 3 ·
Projectile Motion football pass
- DJey
- · Replies 3 ·
Sketching An Acceleration-Time Graph From A Velocity-Time Graph
- 1337Montage
- · Replies 4 ·
ThermodynamicsL Heat, Energy and Work Problem
- Tethys
- · Replies 6 ·
Turning effect of force (Moments)
- xiaomeizi
- · Replies 4 ·
Hang-glider and water balloon problem
- Karajovic
- · Replies 6 ·
Finding angle of change in momentum vector
- Patdon10
- · Replies 1 ·