Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
How Do You Calculate the Mass Difference Between Two Planets Based on Gravity?
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Is this the average velocity of the car?
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How Do You Calculate an Astronaut's Weight Ratio from Moon to Earth?
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Tension and compression in rigid bars
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Circular Plate Tension Question
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Derive Linear Momentum: m2(D-c)/(m1+m2)
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Calculating Minimum & Maximum Speed for an Icy Curve
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Why Is Coulomb's Law Not Working in My Calculation?
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Velocity with air resistance help
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Potential Energy Function problem ()
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Position Barlow Lens for 3x Image w/ Focal Length -0.05m
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Calculating Tension Forces in a Frictionless Pulley System
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How Do You Calculate Tension in a String Connecting Two Blocks on a Ramp?
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Calculating Centripetal Acceleration & Time in Supersonic Airplane Turn
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What is the Velocity When a Ball Hits the Ground?
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How to Solve a Coupled Motion Pulley Problem with Two Masses of Equal Weight?
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Horizontal projectile problem(revised)
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Test on monday (banked road problem)
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Spring Potential Energy involving two springs
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How Do You Calculate the Components of Vector C?
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Velocity and acceleration of a runner
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Solving a 135 N Vertical Force Problem
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Kinetic Energy and friction problem
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Finding Distance of Two Runners with Velocity and Acceleration | Help Needed
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When calculating escape speed why is v_f =0
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How much time does the blood take to reach its final velocity?
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Calculating the Net Force Acting on a 2.75 kg Object
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What was his velocity when he began accelerating ?
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Force on an object in circular motion
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How to Solve Horizontal Projectile Questions?
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Calculating Energy and Friction in a Child's Descent on a 6m Slide
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Calculating Work and Force: A Factory Worker's Challenge Solved!
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How Do You Solve the Projectile Motion Equations for Two Objects?
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Electric Field due to a Charged Cylinder
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A baseball is thrown straight up with initial speed
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Understanding Goodness of Fit for Best-Fit Lines on Graphs
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What Is the Cruising Speed of the Car and the Orbital Speed of the Satellite?
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How Do You Calculate the Net Force on a Ball in Flight?
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Maximum Speed for Successful Roller Coaster Hill Climb
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Calculating Horizontal Distance Traveled by a Thrown Ball
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Free Body Diagrams & Newton's Law Pairs For a 4-Link Chain
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Calculating Acceleration of Blocks on a Ramp
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Calculating Net External Force for a Cheetah's Acceleration
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How Is the X-Component of a Vector Determined Using Sine?
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Is Normal Force Always Equal to Weight? | Simple Physics Problem
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Tension and Angles of Frame on Wall
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How Much Force Compresses a Spring Between Two Crates on a Frictionless Surface?
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Drawing Free-Body Diagrams: Rock Suspended by Two Strings
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Help with statics question please.
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How Fast Must a Basketball Player Jump to Reach 85.8 cm?
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Deceleration of a vehicle problem
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Calculate the tension in the string
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Dealing with mass, acceleration and velocity
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What is the Frequency of an Alternating Current with a Sin Curve?
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What was the plane's speed when the bottle was released?
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Solving Irreversible Processes: Q-W=U2-U1
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How Do You Calculate Tension and Acceleration in a Two-Crate System?
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What Forces Act on a Roller-Coaster Car in Nonuniform Circular Motion?
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Projectile motion tennis ball problem
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AC Source/ Variable Resistance
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Solve Machine Problems: Find Acceleration for Each Machine
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Finding the distance modulus and the absolute magnitude
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What Physics Principles Determine When a Box Slips on a Ramp?
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What is the mass of block on the left?
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Solving Banked Road Problem with Car Speeds of 48 km/h
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Resolving Forces: Find Magnitude & Angle w/ Ox
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How Do I Express the Spring Constant with Significant Figures?
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Help Calculate Net Electric Force on Particle 3
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Differentiation woes with temperature/entropy relations.
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Force and Tension Homework: F, Rope 1 & 2 Tension
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Can someone Equilibrium/friction
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Stretch of Vertical Spring: Oscillating at 5.87 Hz
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How much force does the 4kg block exert on the 6kg block?
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What is the acceleration of a moving crate with two forces acting on it?
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With what minimum speed does the ball need to be hit with to go over the net
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How Do You Calculate Image Distance with Magnification in a Converging Lens?
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How High Must a Rocket Travel for Its Weight to Be 0.4 Times Its Surface Weight?
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Calculate combined apparent magnitude of two stars
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The brightness of a variable star
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Understanding Vector Addition Using Unit Vectors and Magnitude and Direction
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Finding acceleration and displacement on a velocity vs time graph
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Really Simple Magnitude Question
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Have part 1 of problem stuck on part 2. help
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What Is the Correct Coefficient of Friction Calculation?
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Comparing Currents: Two Wire Comparison Homework
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Simple Tension Question 1: Finding Forces and Direction with Two Rigid Rods
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Mechanics/Projectiles/Angles/Trig. Identities?
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How Does Friction Impact Crate Movement on a Rough Surface?
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What is the position-vs-time graph for a falling object?
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Effective Ways to Study Mechanical Physics: Your Feedback Needed!
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What Equations Calculate Thermal Radiation and Wavelength Peak Intensity?
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Understanding the Simple Pendulum: Confusion in Lab and How to Solve It"
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A climber throws 2 stones 1.00s apart and they hit at the same time
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How Do Static and Kinetic Friction Compare in Physics Experiments?
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Pulley Problem / Coupled Motion Question
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Tension Problem x and y components?
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2 particles moving along x axis.
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Solving Kinetic Friction: Baseball Player Sliding Into Third Base
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Acceleration of free falling object on another planet
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Introductory of Chemistry and nuclear fission
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