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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Solving for Vemf and Internal Resistance
- pleasehelpme6
- · Replies 2 ·
Resultant force from two ropes pulling a box west and south
- shortyh90
- · Replies 3 ·
Carnot engine rejected heat problem
- Nimbalo
- · Replies 3 ·
How Do You Calculate Kinetic Energy of Neutrons for Diffraction Analysis?
- louza8
- · Replies 4 ·
Current in a Battery: Solving w/ Kirchoff's Law
- J89
- · Replies 1 ·
Electric field accelerated proton
- SixPaperCups
- · Replies 1 ·
Calculating Acceleration and Time in a 100 m Sprint Race
- arvin369
- · Replies 1 ·
Calculating Centripetal Acceleration of Space Telescope in Orbit
- mohabitar
- · Replies 1 ·
Kinematic problem: VERY complicated
- mclame22
- · Replies 3 ·
How Do You Calculate Acceleration in Asafa Powell's Record-Breaking Dash?
- dunntastic
- · Replies 2 ·
Force Exerted by Blocks on a Frictionless Surface
- farrah003
- · Replies 4 ·
Robert leaps a meter into the air, how long before he lands?
- ADH
- · Replies 2 ·
Finding wind velocity from airplane heading and travel time
- Zanesco
- · Replies 2 ·
Thermo: Change in temp effect on volume of a steel container
- PhysLiz
- · Replies 1 ·
What Forces Act on a Car Pushing a Block in Physics?
- TylerK
- · Replies 4 ·
What is the Correct Calculation for Force in a Three-Mass System?
- MitsuShai
- · Replies 2 ·
Principle of Energy Conservation for Two Protons?
- musiliu
- · Replies 6 ·
How long for a car moving at 95 km/h to catch up from 110 m behind a car at 75 km/h?
- Whitishcube
- · Replies 2 ·
Magnitude of Friction Force Problem
- ._|evo|_.
- · Replies 2 ·
Deriviate proof d/dt[r (v a)]= r(v a)
- agentnerdo
- · Replies 2 ·
Electric Field between two large oppositely charged metal plates
- AlexChandler
- · Replies 1 ·
Force and acceleration with different masses (F=ma)
- softball1394
- · Replies 5 ·
Transformer notation confusion?
- rock.freak667
- · Replies 4 ·
Deriving Max. Velocity for Banked Curve with Friction (Centripetal Acceleration)
- Novii
- · Replies 1 ·
Finding kicking angles to clear a 3.44m goalpost from 50m away
- H2Owned
- · Replies 1 ·
Two dimentional motion question
- Nikolayevitc
- · Replies 1 ·
Solving Relative Velocity Problems: 346 vs 350
- ThomasMagnus
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What is the force on the rider from the motorcycle?
- kittykatxox
- · Replies 1 ·
Relating final speed of electron to its charge mass and voltage difference
- franbella
- · Replies 5 ·
Why does a series resistor protect an LED if it comes after it?
- Kaldanis
- · Replies 5 ·
Kinematic Equations for a Police Car Giving Chase in 12 Seconds
- demonslayer42
- · Replies 2 ·
Find the equivalence capacitance of the below circuit
- sanjose2010
- · Replies 1 ·
RC circuit with AC - finding current
- Akhilleus
- · Replies 10 ·
What Determines the Acceleration of a 25 kg Block in a Pulley System?
- Thefox14
- · Replies 3 ·
What is the total time in the air for the parachutist's jump?
- Live_free
- · Replies 1 ·
Energy released per mole in deuterium-tritium fusion reaction
- ProPatto16
- · Replies 8 ·
What does this dot product problem want?
- seto6
- · Replies 1 ·
How Fast Must the Rock Be Thrown to Reach the Naturalist?
- kalupahana
- · Replies 4 ·
What's the start speed and acceleration of the ball?
- Ockonal
- · Replies 4 ·
Simple projectile motion - problem with units
- Jack_Straw
- · Replies 1 ·
Finding g from Atwood's Machine
- jessicak
- · Replies 1 ·
How to Calculate Distance and Speed with Constant Acceleration
- sydneyfranke
- · Replies 5 ·
Problem with relative motion in two dimensions
- bioblade
- · Replies 1 ·
Displacement and vector problems
- Spartanlol
- · Replies 2 ·
Two balls colliding at highest points at angle x
- mmmboh
- · Replies 1 ·
How long until the mailbag reaches the ground?
- Mustapha13
- · Replies 1 ·
Instantaneous rate of change (two capacitors)
- energychaser
- · Replies 9 ·
Coulomb's law for Be2+ with S2- and O2- ions
- Westlund2
- · Replies 1 ·
Force pushes three blocks, find mag of force exerted on last two blocks
- gap0063
- · Replies 19 ·
Two masses connected by a pulley with a frictionless table
- AHinkle
- · Replies 1 ·
Force pushes and pulls two blocks at an angle
- gap0063
- · Replies 4 ·
Three masses suspended on pulley
- gap0063
- · Replies 5 ·
How are kinematic equations related and what do their slopes mean?
- bugsy25
- · Replies 2 ·
Charge and surface charge density of a conducting sphere at 290 V
- popo902
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Velocity time graph find position, acce?
- fashion_fever
- · Replies 3 ·
How Much Force Is Required to Pull a Platform at an Angle?
- gap0063
- · Replies 1 ·
How Does Friction Affect the Timing in an Atwood Machine?
- vandersmissen
- · Replies 5 ·
Kinematics 2D Projectile Launched at an Angle PROBLEM
- whoopie88
- · Replies 14 ·
Three blocks, two pulleys, on a incline
- gap0063
- · Replies 3 ·
Finding coefficient of static friction in question 5a
- Priscilla
- · Replies 19 ·
Student catching decelerating frisbee at 4 m/s
- dramallama
- · Replies 3 ·
Can a Bomb Hit the Plane Below?
- hogrampage
- · Replies 9 ·
Range Equation: Launching a 78g Basketball at 8.4 m/s
- delfam
- · Replies 3 ·
Do I need to convert grams to kilograms for a mass vs. period experiment?
- chroncile
- · Replies 8 ·
Calculating Particle's Position at t=13.7s
- mohemoto
- · Replies 3 ·
How Do You Calculate Tension in a Dual Hanging Bucket System?
- Tempus35
- · Replies 2 ·
Electric Field and a Charged Cork Ball on a Massless String
- gsquare567
- · Replies 1 ·
The Change in velocity and direction.
- Gprime
- · Replies 1 ·
Single slit diffraction distance
- labview1958
- · Replies 3 ·
What is the total error in calculating resistance using a Manganin wire?
- Acuben
- · Replies 1 ·
How Do Nodes Form on a Vibrating String for the nth Harmonic?
- MyNewPony
- · Replies 3 ·
Find angular acceleration of a yoyo
- Raziel2701
- · Replies 2 ·
What Are Common Misconceptions in Understanding Circular Motion and Orbits?
- lazybum122
- · Replies 6 ·
Solve Constant Velocity: Dogs Collision in 85m
- baileya
- · Replies 3 ·
Finding friction force for a 20 kg crate dragged at constant speed
- Helpme7534
- · Replies 12 ·
Atwood's machine with 3 masses
- AHinkle
- · Replies 4 ·
Circular Motion of earth's orbit Problem
- Selim Bradley
- · Replies 6 ·
Vector Addition of Forces: Finding the Resultant Force
- Suy
- · Replies 2 ·
Questions about Significant Figures
- nlcsa22
- · Replies 4 ·
I'm pretty sure I'm doing this right. .
- sydneyfranke
- · Replies 2 ·
Kinematics Free falling acceleration Physics question
- Brownk
- · Replies 8 ·
A ball is shot from the ground into the air and horizontal distance
- cnalamolu
- · Replies 3 ·
Change in Magnitude of Accleration due to gravity
- mandi182
- · Replies 1 ·
Finding distance traveled up a ramp given m, angle, and velocity
- emilea
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Give magnitude and direction of current flow
- illidari
- · Replies 11 ·
How Do You Calculate the Initial Drop Height in a Free Fall Problem?
- runningirl
- · Replies 1 ·
How Long Does It Take for a Released Mailbag to Hit the Ground?
- Saterial
- · Replies 3 ·
Finding initial projectile velocity with angle and a point in the path?
- ICanHasHelp
- · Replies 3 ·
Area of parallel plat capacitor
- juggalomike
- · Replies 2 ·
Force Problem with tension, 2 blocks, and a rope that has mass.
- 09jml90
- · Replies 16 ·
How Can I Tackle Challenging Grade 11 Kinematics Word Problems?
- gohanssj2a99
- · Replies 1 ·
What Is the Tension in the Top Cables of the Sculpture?
- mandi182
- · Replies 3 ·
What is the mass of the ball and the tension in the string?
- 09jml90
- · Replies 6 ·
Estimate the radius of the largest asteroid you could escape by jumping
- leonne
- · Replies 14 ·
Relative motion with cart and ball
- ryan1180
- · Replies 1 ·
CAPA problem - Kinematics in 1 Dimension
- ghostanime2001
- · Replies 10 ·
How can I solve a three-box system force problem?
- Ilyo
- · Replies 6 ·
Resultant Force Acting on T6 Vertebrae
- pinksunbeam
- · Replies 12 ·