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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Two stacked masses with applied force and friction
- brad sue
- · Replies 3 ·
Need confirmation- Energy and PEgrav
- jakeowens
- · Replies 2 ·
Calculating Electric field strength
- DaMastaofFisix
- · Replies 5 ·
How Much Work Is Done Against Friction?
- DKPeridot20
- · Replies 1 ·
Buoyant Force and Volume: Doubling the Volume, Doubling the Displacement?
- bud102
- · Replies 5 ·
How do I solve this mechanics velocity problem involving a hanging chain?
- Just some guy
- · Replies 21 ·
Air escaping from a heated cylindrical tube open at top
- asa!!
- · Replies 10 ·
Calculating Theoretical Time with the T = 2 (pie) Formula
- SS2006
- · Replies 2 ·
Work-energy with constant radial force on a spiral rod
- Warr
- · Replies 7 ·
How Does Friction Affect the Amplitude of a Harmonic Oscillator Over Time?
- belleamie
- · Replies 1 ·
Resistance of a light bulb question
- Pepsi24chevy
- · Replies 4 ·
AC circuits: inductors, capacitors, and RLC circuits
- Pepsi24chevy
- · Replies 2 ·
Why does the point mass stop in an elastic collision with a dumbbell?
- daveed
- · Replies 2 ·
Program that calculates distances of a rocket
- Tom McCurdy
- · Replies 8 ·
How Do I Solve for the Normal Force in this Cart Problem?
- |345+4|2D
- · Replies 2 ·
Radiation and heat transfer stuff
- ilovephysics
- · Replies 3 ·
Does electrostatic potential depend on the sign of the test charge?
- Tony11235
- · Replies 3 ·
Superstrings theory help would be appreciated.
- Vintage
- · Replies 4 ·
Rubber ball losing energy on each bounce
- kris24tf
- · Replies 14 ·
Velocity to the east, acceleration to the west
- yoyonerd
- · Replies 4 ·
Skydiver acceleration with air resistance, then constant descent with parachute
- confusedaboutphysics
- · Replies 8 ·
Newton's law problem have attempted it
- thugg
- · Replies 3 ·
Velocity Problem: Calculating Oscar's Acceleration and Slide Time on a Mud Bank
- mixte1je
- · Replies 1 ·
Average force on a catcher's mitt with 8.0 cm stopping distance
- mastac741
- · Replies 2 ·
Experiment Results: Projectile Motion and Velocity Analysis
- courtrigrad
- · Replies 1 ·
How High Did the Catapult Launch the Block on Mars?
- pqnd1987
- · Replies 3 ·
Simple ratios dilemma; telescopes and signals from out of space
- T7
- · Replies 2 ·
What's the Force on a Coiled Rope Pulled with Constant Speed?
- asdf60
- · Replies 9 ·
How Fast Do Charged Particles Move When Halving Their Initial Separation?
- nutster
- · Replies 2 ·
AP Physics Lab: Coefficient of Friction
- gothicpie
- · Replies 2 ·
Bragg's equation error analysis for ball bearing spacing
- bayan
- · Replies 1 ·
Force Analysis of 3 Blocks on Horizontal Surface
- brad sue
- · Replies 2 ·
Solving for Maximum Spring Length With a Dropped Clay Ball
- maki
- · Replies 1 ·
What angle yields the maximum horizontal range for a projectile?
- TickleMeElma
- · Replies 4 ·
Why Does a Car Behave Erratically When Its Back Brakes Are Locked?
- shahalam
- · Replies 2 ·
Pressure/force hydraulic lift problem
- huskydc
- · Replies 7 ·
Rotational Dynamics and angle of theta
- jman1211
- · Replies 2 ·
Calculate Elevator's Acceleration with Person on Bathroom Scale
- confusedaboutphysics
- · Replies 6 ·
Solving Projectile Motion Displacement
- plane
- · Replies 4 ·
Approximate the minimum kinetic energy of an electron
- ussrasu
- · Replies 4 ·
What Is the Total Force on a Charge at the Center of a Semicircle of Charge?
- thenewbosco
- · Replies 8 ·
Work done lifting a safe and kinetic energy in shot put
- jakeowens
- · Replies 5 ·
Determine the tension in the cable attached to the chair
- abstrkt
- · Replies 1 ·
Projectile Motion: Calculations and Help for 40 m/s Velocity and 20° Angle
- navee
- · Replies 2 ·
Calculating Activated Speed in a Cylindrical Tube
- asa!!
- · Replies 1 ·
Work done and motion of 4 kg block with friction
- Tabe
- · Replies 2 ·
Motorboat Downstream Velocity: Point A to 6km Away
- JAIN JAIMIK
- · Replies 2 ·
Why is earth's rotation period < 24hrs
- dowjonez
- · Replies 3 ·
Solving Spring/Work Problem: Find Min. Work Required
- Tabe
- · Replies 1 ·
What Factors Affect the Tension in a String Between Two Sliding Boxes?
- faet
- · Replies 5 ·
Calculating Buoyant Force on a Boat
- PhunWithPhysics
- · Replies 2 ·
How to Calculate Fn, Highest Point, and Acceleration on an Inclined Plane?
- killerinstinct
- · Replies 4 ·
Football kicked at unknown angle travels 45 meters horizontally
- Bucky8624
- · Replies 1 ·
Finding acceleration in y-direction on a tilted air hockey table
- firebug
- · Replies 6 ·
Special geostationary orbit condition
- JamesJames
- · Replies 2 ·
Solving Physics Problems: Ball Drop and Race Calculations
- dmasports
- · Replies 2 ·
Newton's law and two blocks on vertical inclined plane
- SpicyQ
- · Replies 6 ·
How Much Tension Is Needed to Lift a 1800 kg Car Upward at 0.60 m/s²?
- confusedaboutphysics
- · Replies 11 ·
Question involving beats and finding an unknown frequency.
- insertnamehere
- · Replies 5 ·
Ear Damage from a Small Firecracker
- hotmail590
- · Replies 3 ·
Football Projectile Calculations
- courtrigrad
- · Replies 4 ·
What is the coefficient of kinetic friction for the incline?
- missyjane
- · Replies 3 ·
Calculating Plank's Velocity on Frictionless Ice Surface
- willworkforfood
- · Replies 2 ·
Frictional force and largest angles
- missyjane
- · Replies 10 ·
I need a formula for Height equals length of arc.
- SPiZ
- · Replies 3 ·
How to calculate the rebound distance of the bungge jump
- superkui
- · Replies 3 ·
TENSION: how do you calculate it?
- hebden
- · Replies 1 ·
Solving the Blackbody Problem for Main Sequence Stars
- Sneil
- · Replies 6 ·
Calculate Normal Force: 55 N Box on Table with 35 N Box and 28 N Hanging Box
- bloccubed
- · Replies 3 ·
Solving Resonance Problem in Air Columns
- insertnamehere
- · Replies 3 ·
Incline Equilibrium with Unique Applied Force
- gasapple
- · Replies 8 ·
Finding missing values and wave speed for a sinusoidal wave on a string
- big man
- · Replies 5 ·
What Force Must Be Exerted at 35 Degrees on a 30 Degree Hill?
- Hitokiri
- · Replies 2 ·
Mass Spectrometer and Electric Field Problem
- jena
- · Replies 1 ·
Work required to pull a hanging chain
- Ginny Mac
- · Replies 9 ·
Finding tension between two fish hung from a fishing line
- Kristin
- · Replies 3 ·
What Are Electromagnetic Waves and How Are They Used in Radio and Radar?
- nutzweb
- · Replies 2 ·
Solve Angular Acceleration Prof's Puzzle: Conservation of Energy
- pagal_punjabi
- · Replies 2 ·
How Does Kinematics Calculate the Trajectory of a Thrown Ball?
- tiarakiyoshi
- · Replies 9 ·
Find the net charge on the shell
- dwx1
- · Replies 1 ·
Force needed to push a 3.8 kg block up a vertical wall at 35 degrees
- Kumar9
- · Replies 2 ·
Projectile motion with air resistance proportional to velocity
- don_anon25
- · Replies 1 ·
How Do Velocity and Acceleration Relate in Circular Motion?
- fahd
- · Replies 1 ·
Finding M2 with two cables at different angles and a horizontal connecting cable
- missyjane
- · Replies 6 ·
What Is the Maximum Car Acceleration Without the Book Slipping?
- Elysium
- · Replies 6 ·
One Dimension Free-Fall Problem
- CinciBCAT34
- · Replies 5 ·
Finding time and initial velocity from projectile launcher distances
- barry89
- · Replies 2 ·
Calculating Net External Force in a Two-Body System with Gravity
- missyjane
- · Replies 2 ·
Skier coasting down slope with initial speed and friction
- BriannaUND
- · Replies 7 ·
Trouble with Harmonic Oscillator Problems in Quantum Physics
- Tuneman
- · Replies 2 ·
Tuning fork resonance in variable length tube
- robert25pl
- · Replies 2 ·
Solving 3sin(x+10)=4cos(x-10)
- brandon26
- · Replies 3 ·
Final speed and compression in a kinetic-potential energy problem?
- erik-the-red
- · Replies 5 ·
Problem with charge distribution and potential
- echau
- · Replies 6 ·
RLC resonance: why lamp glows at certain inductance values and tuning a 100MHz circuit
- forevermoreOC
- · Replies 2 ·
Volume of a cone is 10 cubic cm
- LauraJane
- · Replies 1 ·
What is the temperature of the bath?
- lw11011
- · Replies 5 ·
Solving Sled Friction: Find Distance Traveled with Coefficient of Friction 0.060
- dciple
- · Replies 4 ·
How to find the time elapsed between successive resonances?
- insertnamehere
- · Replies 1 ·
How Do You Solve These Physics Problems Involving Tension, Friction, and Motion?
- bknice02
- · Replies 1 ·