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.
Projectile motion of car driving off a cliff
  • Alyssa Jesse
  • · Replies 27 ·
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27
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8K
Kinematics bouncing ball problem
  • mridulag
  • · Replies 3 ·
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3
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4K
Conservation of energy/inclined planes
  • Alyssa Jesse
  • · Replies 12 ·
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12
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5K
Displacement Current understanding
  • carnot cycle
  • · Replies 11 ·
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11
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5K
What is the Solution to a Thermodynamics Problem with a Mercury Vase?
  • DorelXD
  • · Replies 18 ·
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18
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3K
Contact Pressure Vs Traction Vs Deformation in a wire
  • ounvme
  • · Replies 1 ·
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1
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2K
Weight distribution over multiple scales
  • Alyssa Jesse
  • · Replies 13 ·
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13
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5K
Magnitude of force experienced by the electron and direction of force
  • a.gracias
  • · Replies 5 ·
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5
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3K
Show that kinetic energy of the earth after a collision can be ignored
  • questtosuccess
  • · Replies 2 ·
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2
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4K
Electric Field at Points p3 & p4: Explained
  • rgujju
  • · Replies 4 ·
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4
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2K
Why Should the Product of Magnifications Be Equal to 1?
  • miaou5
  • · Replies 3 ·
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3
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4K
Electric Field Due To A Ring and Disk
  • Bashyboy
  • · Replies 4 ·
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4
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8K
Newton's Law: sliding down a slope
  • Nigzzzz
  • · Replies 1 ·
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1
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3K
School project help: Window tint in reducing the temperature of car.
  • hhm28
  • · Replies 5 ·
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5
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4K
What is the Maximum Safe Depth for a Submarine Window?
  • baddin
  • · Replies 2 ·
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2
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5K
Finding the Max Extension of a Spring
  • rgujju
  • · Replies 3 ·
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3
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2K
Orientation on Calculus Work Problem. Hooke's Law.
  • Dan350
  • · Replies 5 ·
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5
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2K
Damped Oscillations in an RLC circuit
  • electrohau5
  • · Replies 5 ·
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5
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4K
Doppler shift with 2 trombones
  • Gauss M.D.
  • · Replies 8 ·
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8
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2K
Is Speed the Same as Magnitude of Velocity in Horizontal Projectile Motion?
  • MathHelpa
  • · Replies 2 ·
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2
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1K
Equipotential Surfaces physics problems
  • LovePhys
  • · Replies 1 ·
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1
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2K
Projectile Motion: velocity and speed
  • MathHelpa
  • · Replies 2 ·
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2
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2K
Converting a galvanometer to ammeter and voltmeter.
  • a.gracias
  • · Replies 5 ·
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5
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4K
Air Resistance and Projectile Motion Assignment Task
  • kobijean
  • · Replies 4 ·
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4
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3K
Solving for time with an non consistant acceleration
  • laketri
  • · Replies 7 ·
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7
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3K
Velocity and acceleration in a frictionless circular loop
  • KKiefhaber
  • · Replies 2 ·
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2
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4K
Bar pivoted at end-conservation of energy
  • natasha13100
  • · Replies 20 ·
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20
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8K
Acceleration of a Block Sliding on a Wedge
  • Saitama
  • · Replies 21 ·
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21
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11K
Energy density of magnetic field in a solenoid
  • mdf730
  • · Replies 3 ·
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3
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13K
Finding Angular Speed of Hoop Using Energy Methods
  • student34
  • · Replies 1 ·
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1
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6K
Current induced in a charged hollow sphere
  • Final_HB
  • · Replies 25 ·
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25
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6K
How can we determine velocity from a position-time graph without using calculus?
  • oldspice1212
  • · Replies 3 ·
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3
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2K
What does the area under a Distance vs Time graph indicate
  • urbano
  • · Replies 10 ·
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10
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18K
Square pivoted at corner-conservation of energy
  • natasha13100
  • · Replies 3 ·
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3
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5K
Calculating Velocity of m1 After Falling a Distance of d Meters over a Pulley
  • postfan
  • · Replies 19 ·
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19
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6K
Thermodynamic process P^2+aV^2=constant
  • rafaelgm9
  • · Replies 1 ·
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1
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2K
Solve 2 Block Swing Homework: Find Mass m
  • postfan
  • · Replies 21 ·
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21
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3K
Finding minimum values for problems
  • tooperoo
  • · Replies 3 ·
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3
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2K
What is the Acceleration of C in This Constrained Motion Problem?
  • Saitama
  • · Replies 24 ·
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24
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4K
What Determines the Direction of Static Friction in Rolling Without Slipping?
  • peripatein
  • · Replies 11 ·
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11
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11K
Freefall in a Newtonian gravitational field
  • Medd
  • · Replies 11 ·
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11
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2K
Lifting a car using a hydraulic lift
  • baddin
  • · Replies 3 ·
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3
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3K
Electric field between 2 objects and electric force on object?
  • megabassdude
  • · Replies 2 ·
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2
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2K
Measuring pressure using a manometer.
  • baddin
  • · Replies 3 ·
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3
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3K
Opening the refrigerator door to cool a room.
  • ShizukaSm
  • · Replies 6 ·
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6
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3K
Conservation of Momentum Questions
  • junaid314159
  • · Replies 4 ·
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4
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3K
What is the heat flow rate [ ]?
  • s3a
  • · Replies 8 ·
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8
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3K
Finding Mass and Velocity in an Elastic Collision at an Angle
  • maxalador
  • · Replies 23 ·
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23
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6K
Liquid pressure in microgravity
  • 2147483647
  • · Replies 4 ·
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4
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2K
Why is W=m*g relevant if I am standing still and not moving ?
  • urbano
  • · Replies 6 ·
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6
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2K
Is the Relativistic Doppler Shift Formula Correctly Applied in this Problem?
  • Solarmew
  • · Replies 5 ·
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5
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2K
Electrostatics- spheres leaking charge
  • zukkash
  • · Replies 9 ·
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9
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6K
Uniform rod pivoted off-center
  • natasha13100
  • · Replies 9 ·
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9
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4K
Change in energy stored on a capacitor when dielectric is changed.
  • Final_HB
  • · Replies 20 ·
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20
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6K
Which Formula to Use for Sound Intensity Calculation?
  • joshuajava
  • · Replies 6 ·
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6
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7K
Is momentum conserved in y direction ?
  • bksree
  • · Replies 18 ·
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18
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4K
Calculating Mass of Water Pumped by a Motor
  • hacker804
  • · Replies 4 ·
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4
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2K
What Determines the Electric Field Magnitude at Half the Radius of a Solenoid?
  • freddy13
  • · Replies 1 ·
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1
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2K
Maximum perpendicular height above an inclined plane
  • Woolyabyss
  • · Replies 7 ·
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7
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4K
Find Maximum extension in the spring-Work Energy Problem
  • Tanya Sharma
  • · Replies 16 ·
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16
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7K
MoI of a Sphere using Spherical Coordinates
  • Ackbach
  • · Replies 2 ·
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2
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2K
Calculating Charge and Current in a Resistor Circuit
  • whitehorsey
  • · Replies 9 ·
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9
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3K
Maximums on a Diffraction Grating
  • MicahP
  • · Replies 3 ·
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3
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3K
Optimizing Mirror Widths for Periscope Design
  • ananya17
  • · Replies 1 ·
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1
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2K
Launching a projectile from a spinning wheel
  • natasha13100
  • · Replies 25 ·
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25
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9K
Using elastic equations to calculate height
  • maxalador
  • · Replies 16 ·
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16
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3K
Gaussian Surface and Charge Density
  • whitehorsey
  • · Replies 2 ·
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2
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3K
How much extra force is needed to pull a heavier toboggan?
  • STEMucator
  • · Replies 7 ·
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7
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6K
Help with uniform motion problem.
  • thestar88
  • · Replies 6 ·
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6
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3K
Projectiles On An Inclined Plane
  • Woolyabyss
  • · Replies 3 ·
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3
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2K
Work problem on winding up a cable
  • Dan350
  • · Replies 7 ·
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7
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11K
A gyroscopic rotating magnetic field
  • Loki Prankster
  • · Replies 3 ·
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3
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2K
Solving Friction & Wood Homework
  • STEMucator
  • · Replies 3 ·
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3
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2K
How Does a Variable Coefficient of Kinetic Friction Affect Block Acceleration?
  • bestchemist
  • · Replies 10 ·
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10
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13K
Electromagnetism: Axle rolling on train rails
  • dmayers94
  • · Replies 12 ·
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12
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3K
Pulley Problem 1: Calculating Masses Acceleration & Tension
  • Anthonyphy2013
  • · Replies 5 ·
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5
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2K
Calculating instantaneous acceleration
  • maxalador
  • · Replies 10 ·
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10
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4K
Simple Harmonic Motion: Period Calculation and Newton's Second Law Explanation
  • SirPlus
  • · Replies 3 ·
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3
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2K
How Can I Calculate the Displacement and Path Length of a Fly in a 3D Room?
  • maxalador
  • · Replies 2 ·
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2
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2K
Understanding Electric Field Superposition in the Presence of Multiple Charges
  • Bashyboy
  • · Replies 6 ·
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6
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1K
Can Conservation of Energy Explain Particle Movement on a Frictionless Surface?
  • Sam_Hawkins
  • · Replies 8 ·
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8
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2K
How Do You Calculate Uncertainty in Ammeter Readings?
  • songoku
  • · Replies 2 ·
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2
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4K
Attractive Force Between Sun & Venus
  • STEMucator
  • · Replies 6 ·
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6
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2K
Optics Question, where is the lens
  • oneplusone
  • · Replies 5 ·
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5
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2K
Motion of an object dropped from a descending and ascending helicopter
  • donking225
  • · Replies 6 ·
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6
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7K
Energy Dissipation in an RC Circuit: Finding the Total Thermal Energy
  • electrohau5
  • · Replies 7 ·
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7
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3K
Maximum working shear stress and working force?
  • BlueCB
  • · Replies 13 ·
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13
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10K
Interference Waves: Frequency, Wavelength, Speed
  • DavidCantwell
  • · Replies 6 ·
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6
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3K
Gallons of H20 needed to cool molten steel
  • tconlon33
  • · Replies 9 ·
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9
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3K
How Do You Calculate the Power Supplied by Batteries A and B?
  • electrohau5
  • · Replies 7 ·
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7
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2K
How Do You Calculate the Upward Force Needed to Keep a Board Level?
  • gomathireddy
  • · Replies 4 ·
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4
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3K
Mousetrap Experimental Investigation
  • DelToro
  • · Replies 8 ·
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8
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3K
Find acceleration given initial and final velocity, and displacement
  • donking225
  • · Replies 4 ·
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4
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18K
What is the Tension in Steel Wires Supporting Aircraft Wing?
  • BlueCB
  • · Replies 13 ·
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13
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4K
What is the Correct Final Temperature in an Ice-Water Heat Transfer Experiment?
  • sunflowerzz
  • · Replies 11 ·
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11
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3K
Block pull, Problems with trig to isolate for theta.
  • cambo86
  • · Replies 2 ·
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2
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2K
Statics: Shear and bending moment, distributed load
  • yaro99
  • · Replies 5 ·
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5
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4K
Quadratic Air Drag and Bullet Motion: Solving for v^2 in Terms of x
  • Outrageous
  • · Replies 21 ·
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21
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3K
Cycling on the Moon, no air resistance to cause terminal velocity.
  • mrcotton
  • · Replies 4 ·
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4
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2K
Lennard-Jones Potential: Equilibrium Distance and Dissociation Work
  • postfan
  • · Replies 15 ·
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15
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7K