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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Who can solve these 2 questions ?
- ehsanbs1
- · Replies 3 ·
Rotational Motion of a disk and a box
- mit_hacker
- · Replies 5 ·
Calculating Work Needed to Change Spring Length
- mshah3
- · Replies 5 ·
Does a siphon's function is affected by its level of immersion?
- beatenbob
- · Replies 1 ·
Simple rolling friciton problem, where did I go wrong?
- JBP_Ace
- · Replies 2 ·
Equations of motions, revolutions of turntable
- Jtappan
- · Replies 5 ·
What is the Potential Energy and Work Done by a Conservative Force?
- clipperdude21
- · Replies 8 ·
Geostationary Satelite Problem
- Jtappan
- · Replies 3 ·
Help with a textbook question I don't understand
- pebbles
- · Replies 5 ·
Why is a 1°C temperature change not equal to 1K?
- dhar666
- · Replies 8 ·
Putting together a wave function from given data
- Pyrestrike
- · Replies 2 ·
Tension in rope for 30.8 kg child swinging at 4.2 m/s
- Jtappan
- · Replies 4 ·
How Do You Calculate the Second Displacement in Vector Problems?
- Flashtf
- · Replies 1 ·
Circular motion Involving Static Friction
- Jtappan
- · Replies 1 ·
Solve Gauss' Law Problem: Electric Field at P on Spherical Shell
- mujadeo
- · Replies 1 ·
Calculating Work for an Elastic Spring with Two Connected Springs
- kimjh
- · Replies 1 ·
Find tension of string in a pendulum
- Jtappan
- · Replies 1 ·
Finding tube extension for beat frequency tuning
- Numzie
- · Replies 7 ·
How to find mass with gravitational attraction.
- ssjdbz101
- · Replies 4 ·
Rocket sledge speed entering and leaving a 60m section
- ella_101
- · Replies 7 ·
What Is the Average Force Exerted by a Stream of Pellets on a Wall?
- bob1182006
- · Replies 2 ·
Distance of Hurricane from Grand Bahama Island: 104 km
- mortho
- · Replies 1 ·
How to Calculate Minimum Speed for a Ball to Make a Vertical Circle?
- kimjh
- · Replies 7 ·
What Are the Limits of m1 to Prevent System Acceleration with µ=0.42?
- meganw
- · Replies 1 ·
Two Rotational Motion Questions
- ccsmarty
- · Replies 2 ·
Torque Problem, need to verify answer
- silvashadow
- · Replies 3 ·
Physics word problems regarding basic concepts
- jon.physics
- · Replies 3 ·
How Do You Calculate Kinetic Energy and Acceleration on a Loop-the-Loop Track?
- bulldog23
- · Replies 34 ·
Calculating Forces between Contacting Crates
- meganw
- · Replies 6 ·
Can I Take the X Component Out When Differentiating with Respect to Z?
- Oblio
- · Replies 2 ·
Calculating Acceleration and Tension in a Pulley System with Inclined Planes
- emma3001
- · Replies 6 ·
What is the upward force on the hot air balloon?
- emma3001
- · Replies 3 ·
Changing places in canoe - find mass
- Dynex
- · Replies 1 ·
Drawing Vector Diagrams for Problem-Solving
- Bladesofhalo
- · Replies 2 ·
Applying Newton's Laws of Motion
- emma3001
- · Replies 1 ·
How Can I Solve These Physics Problems on Forces and Tensions?
- premed
- · Replies 3 ·
Newton's Third Law - Interacting Systems
- mantillab
- · Replies 4 ·
Two balls colliding with unknown masses and right-angle deflection
- Destrio
- · Replies 12 ·
Two Blocks, Massless Rope. Pulley
- kls5010
- · Replies 1 ·
Kinetic energy fusion of protons
- mshah3
- · Replies 1 ·
What is the value of vp for a particle ejected from a rotating rod?
- snoggerT
- · Replies 1 ·
Coefficient of friction and forces proof
- physfan
- · Replies 15 ·
Find Expression for Acceleration of Figure w/ Frictionless Table
- adventq
- · Replies 9 ·
Why Does Grounding the Inner Shell Affect Cylindrical Capacitor Capacitance?
- cscott
- · Replies 1 ·
What is the velocity of the cars right after the collision?
- Bob Loblaw
- · Replies 2 ·
U-substitution for finding v(t)
- sadakaa
- · Replies 3 ·
Terminal velocity in a viscous medium
- shiri
- · Replies 4 ·
Hi all, me with a few physics problems.
- BigGirl58
- · Replies 33 ·
How Do You Calculate Constant Angular Acceleration?
- Zerobu
- · Replies 1 ·
What is the Relationship Between Friction and Horizontal Force?
- caduceus
- · Replies 2 ·
Finding tension in wire when bird lands midway between poles
- St@rbury
- · Replies 4 ·
Newton's Law of Cooling of porridge
- denverhockeyfan
- · Replies 1 ·
Solve 2D Projectile Motion: Vi=130m/s, Theta=60°, d=850m
- firefly_1
- · Replies 3 ·
Rock launched from sling: finding velocity and centripetal force
- dominus96
- · Replies 5 ·
Armadillo Problem (Newton's Second Law)
- Seraph404
- · Replies 13 ·
What is the Speed and Total Mechanical Energy of a Simple Pendulum?
- thatgirlyouknow
- · Replies 5 ·
Two horses pulling a barge at 30 degrees
- cmseybold
- · Replies 4 ·
Centripetal acceleration with tilted string at angle theta
- kateman
- · Replies 8 ·
3 Problems involving superposition
- mst3kjunkie
- · Replies 4 ·
Vectors: air speed, ground speed
- slakedlime
- · Replies 4 ·
At what projection angle does range equal maximum height?
- chitownfireman
- · Replies 6 ·
Sound Level (trouble setting up equation)
- Saladsamurai
- · Replies 1 ·
Finding Tension and Acceleration in a System of Dragged Blocks
- ~christina~
- · Replies 12 ·
Relativistic motion and understanding it
- Niles
- · Replies 6 ·
Finding v·a and r×a for circular motion with given period and acceleration vector
- kevinf
- · Replies 2 ·
Why Do Different Methods of Loading Affect Spring Calculations?
- confusseed
- · Replies 1 ·
Equilibrium: Distinguishing Sigma Fx from Sigma F-x
- St@rbury
- · Replies 2 ·
Catching or deflecting an incoming ball for faster velocity?
- hawainpanda
- · Replies 9 ·
Finding Current Through Resistors in Figure
- khoaz
- · Replies 1 ·
Is My Solution to Circular Motion Problem Correct?
- bob1182006
- · Replies 1 ·
Centripetal force relation to angular momentum
- turnip
- · Replies 1 ·
Force and Newton's 2nd, weird lab results
- Woodpecker
- · Replies 1 ·
Where Is the Force on the Marble Zero?
- physicsgirlie26
- · Replies 2 ·
Reading Acceleration in V vs. T Graph
- Hisui
- · Replies 1 ·
Calculating Frictional Force for a Spinning Disk
- aligass2004
- · Replies 10 ·
What is the solution to the rifle momentum problem?
- Zerobu
- · Replies 2 ·
Solve Spring Problem: Help for Homework Statement
- bulldog23
- · Replies 25 ·
A woman pulls a suitcase -- what is the angle with the horizontal?
- ~christina~
- · Replies 7 ·
Explain to me the parallel axis theorem
- jaded18
- · Replies 5 ·
Projectile Problems: Range, Time & Theta C (6 Sig Digits)
- Brentavo7
- · Replies 53 ·
Calculating Velocity and Angle of a Plane with Wind Gusts
- ProctorPlayer
- · Replies 3 ·
Solving for Time and Velocity of a Ball Rolling Off a Table – Motion Question
- kevinf
- · Replies 4 ·
Solving Kinetic Energy: Mass, Velocity, and Jogger's Speed
- anglum
- · Replies 2 ·
Solve Kinetic Energy of Football Linemen
- azila
- · Replies 2 ·
At what height does the rope break in a 24m building swing?
- SoulBlazerz
- · Replies 1 ·
Calculating Coefficient of Kinetic Friction on a Slope Using Newton's Laws
- jmonkey
- · Replies 2 ·
How Low Can a Pop Bottle Go in Pitch?
- Numzie
- · Replies 1 ·
Projectiles launched at an angle.
- Aracon504
- · Replies 2 ·
Finding Fnet with missing variables
- CharmedForever
- · Replies 4 ·
Calculating Force Required to Pull Copper Ball Upward
- shiri
- · Replies 3 ·
Gravitational force between a 50.0 kg mass and Earth
- xbeachbabeee
- · Replies 1 ·
Solve Kinematics Problem: Dropping 15.0 m, Stretching Net 1.0 m
- H^w
- · Replies 3 ·
Projectile motion: Big Bertha shell and rolling baseball
- icecubefosho
- · Replies 5 ·
Why height is 0.25m not 0.5m in ball collision on frictionless slope
- beatenbob
- · Replies 2 ·
How Do Newton's Laws Explain Changes in Gravitational Forces and Orbital Ratios?
- sarahhhh
- · Replies 1 ·
How Is Angular Momentum Calculated for a Spinning Coin?
- royguitarboy
- · Replies 10 ·
Calculating Water Tower's Drain Pipe Flow Rate
- yuvlevental
- · Replies 7 ·
How Does Friction Affect the Speed of a Block Hitting a Spring?
- bulldog23
- · Replies 4 ·
Calculating Normal Force on a 3-Tiered Birthday Cake
- big daddy
- · Replies 6 ·