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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What is the magnitude of the position vector at time t = 7.5 s?
- chaotixmonjuish
- · Replies 5 ·
Can You Avoid a Speeding Ticket with a GPS Tracker?
- mpgriffis
- · Replies 4 ·
Converting Between Units of Measurement
- Larrytsai
- · Replies 2 ·
Calculate the ratio of the time the jumper is above ymax/2
- killerinstinct
- · Replies 14 ·
Finite Sheets of Charge Compared to Infinite Sheets of Charge
- Gaupp
- · Replies 3 ·
Calculating Angle of Refraction for Light Passing Through Water and Glass
- aliaze1
- · Replies 6 ·
How to draw vectors of an airplane & SE wind diagram
- agentnan
- · Replies 4 ·
Phase Difference of Transfer Function H(jw)
- nicktacik
- · Replies 3 ·
How Do You Prove \sum_{j,k} \epsilon_{ijk} \epsilon_{ljk} = 2\delta_{il}?
- cashmerelc
- · Replies 5 ·
How to Determine Average Acceleration During Contact with the Floor?
- jperk980
- · Replies 4 ·
Relative velocity problem. NEED HELP.
- sanghoon
- · Replies 4 ·
What is the height of a 91 lbs. gold cube?
- chrisjj
- · Replies 3 ·
Vector A+B and A-B: Graphical Method
- Propagandhi
- · Replies 5 ·
Prove: Area of Triangle Between Vector a & b & Red Line = 1/2 |a x b|
- jbp890
- · Replies 1 ·
How High Does a Two-Stage Rocket Reach?
- eeriana
- · Replies 1 ·
Find the magnitude and angle of vector B
- nneilson1
- · Replies 2 ·
What is the relative velocity of two cars traveling in the same direction?
- mslena79
- · Replies 7 ·
How Do You Derive the Kinematic Equation \(v_f^2 = v_i^2 + 2ad\)?
- Lego
- · Replies 5 ·
Calculating Micrometer Reading Change for 50 Fringes at λ = 550 nm
- Benzoate
- · Replies 1 ·
Calculate Smallest Distance Between Baby Parts with Ultrasound Pulses
- Trail_Builder
- · Replies 5 ·
Projectile Motion: Finding Rifle Angles for a 91.4m Target
- mslena79
- · Replies 14 ·
Understanding the Scalar Product in Vector Calculus
- cashmerelc
- · Replies 18 ·
Elastic potential energy of spring
- psycovic23
- · Replies 2 ·
Projectile motion rocket problem
- mslena79
- · Replies 2 ·
How Many Photons Does a 1-kW Radio Transmitter Emit at 880 kHz?
- GravityGirl
- · Replies 3 ·
Calculating Free Fall: Finding Time and Height
- jperk980
- · Replies 8 ·
How Many Photons Does a 1-kW Radio Transmitter Emit at 880 kHz?
- GravityGirl
- · Replies 1 ·
Can Conservation of Momentum Be Applied to Magnetic Hockey Pucks on Ice?
- eraemia
- · Replies 3 ·
What is the acceleration and tension in a pulley system?
- megaforcetkd
- · Replies 3 ·
Trajectory, where it will land.
- fender24
- · Replies 1 ·
How Do You Calculate the Muzzle Velocity of a Spring-Loaded Toy Gun?
- EvanQ
- · Replies 9 ·
How Does Coil Dimension Affect Magnetic Field Strength?
- gamesandmore
- · Replies 3 ·
What Was the Initial Speed of a 81kg Projectile Fired Straight Up to 175km?
- habs.fan
- · Replies 11 ·
How Does Projectile Height Affect Time of Flight?
- janome
- · Replies 1 ·
Gravitational Force on 10.0kg Mass at Earth Locations
- azila
- · Replies 15 ·
Calculating Acceleration of a Toy Train with a Sticking Wheel
- Steve Halt
- · Replies 3 ·
How Do You Solve for Acceleration and Velocity in Basic Physics Equations?
- mrthomas
- · Replies 2 ·
How Do You Calculate the Force Exerted by Water in a Tank?
- lostinphysics44
- · Replies 1 ·
Can falling from a building be deadly?
- RilesKR
- · Replies 2 ·
What is the average speed of a gerbil running in a clear plastic tube?
- lostfan176
- · Replies 6 ·
How Do You Prove Trigonometric Identities for Vector Angles?
- Oblio
- · Replies 20 ·
Finding Components of Perpendicular Vectors in a Cartesian System
- Johnny Blade
- · Replies 8 ·
How Much Charge Would the Moon and Earth Need to Replace Gravity?
- itzxmikee
- · Replies 2 ·
Calculating time of falling object
- anglum
- · Replies 28 ·
What is the Final Temperature of the White Coffee?
- bidhati
- · Replies 2 ·
What is the acceleration due to gravity on this asteroid?
- azila
- · Replies 3 ·
What Defines a System in Different Academic Fields?
- eraemia
- · Replies 3 ·
How Do You Calculate the Coefficient of Kinetic Friction in a Skiing Problem?
- eku_girl83
- · Replies 2 ·
Discussions on answer of a problem
- neelakash
- · Replies 6 ·
Doing something wrong Newtons law proof
- Oblio
- · Replies 16 ·
Converting Atmospheric Pressure to N/cm^2 and psi: A Comprehensive Guide
- Cugglebear
- · Replies 1 ·
Pulley Problem: Finding Tension in Suspended Cord with Two Masses
- iheartpink
- · Replies 9 ·
Calculate the instantaneous acceleration
- Heat
- · Replies 21 ·
Relation between Angular speeds/accelerations
- mircobot
- · Replies 4 ·
Earthquake analysis (motion along a straight line)
- physstudent1
- · Replies 1 ·
Does the Mass of an Object Fluctuate?
- jumbogala
- · Replies 8 ·
Sliding Mass on Fixed Rod: Analyzing Angular Momentum
- neelakash
- · Replies 2 ·
Acceleration/distance/time problem
- Rylynn97
- · Replies 3 ·
Calculating Distance Traveled by a Dog Between Two Walking Owners
- josephpatricks
- · Replies 2 ·
Force on Table when Dropped: Find Out with Friends!
- mreznicek
- · Replies 12 ·
Component Vectors: Find the Angle with a Magnitude of 25 & X Component of 12
- josh84
- · Replies 5 ·
Charge Density: Understanding Its Relationship to Charge & Mass
- hamza
- · Replies 4 ·
Atwood machine pully problem with a twist
- DukeJP2010
- · Replies 9 ·
Understanding Lorentz Transforms: Interpreting Results and Visualizing Answers
- strangequark
- · Replies 7 ·
Unit Vector Notation Solution: Express Vector a1 & a2
- saber1357
- · Replies 2 ·
Unit Vector Notation: Solve a1, a2 for Vector Equation
- saber1357
- · Replies 1 ·
How Do You Calculate Vector Differences and Resultant Forces?
- Vaalron
- · Replies 17 ·
Figuring Displacement from acceleration
- deenuh20
- · Replies 12 ·
Why Does the Tension in the Cable Change Above and Below the Worker?
- thatgirlyouknow
- · Replies 15 ·
Calculating Distance: Jill's Sprint to Catch a Rolling Shopping Cart
- dude24
- · Replies 6 ·
Find the Component of Two Vectors
- josh84
- · Replies 3 ·
Solve Free-Fall Problem: Hot Air Balloon & Package t=2.26/2.49s
- chemguy990
- · Replies 2 ·
Finding Initial Velocity of a Projectile Using Position and Angle
- JoeTrumpet
- · Replies 7 ·
Calculating New Vector Components
- josh84
- · Replies 1 ·
Kinematics in 2d of eagle flying
- Inonin
- · Replies 3 ·
Direction and magnitude question again
- excelsion
- · Replies 6 ·
Find Force From A Graph Of Potential
- Winzer
- · Replies 17 ·
What is the initial velocity of a ball thrown straight up?
- chemguy990
- · Replies 3 ·
Position of Electron Moving Along x-Axis at Momentary Stop
- jjc39
- · Replies 1 ·
Calculating Initial Speed: Solving for Vi in Projectile Motion
- anglum
- · Replies 23 ·
Surface area of N spherical droplets?
- saber1357
- · Replies 6 ·
Acceleration and distance problem
- deenuh20
- · Replies 4 ·
Equilibrium of Hanging Bag of Cement: Tension Forces Question Solution
- myelevatorbeat
- · Replies 9 ·
Incline Plane with Friction with one object hanging?
- myelevatorbeat
- · Replies 2 ·
Instantaneous Speed & Acceleration: Equations Explained
- lostfan176
- · Replies 4 ·
How Do You Calculate the Distance a Projectile Travels Up an Incline?
- golbez987
- · Replies 13 ·
Calculating Density of Rock from Mars w/ Uncertainty
- shade585
- · Replies 4 ·
Calculating Volume for 1 kg of O2 at 150,000 Pa and 100K using Ideal Gas Law
- Rockstar47
- · Replies 7 ·
What is the Magnitude of Deceleration of a Meteorite Striking a Car?
- Champ07
- · Replies 6 ·
Surviving a Sudden Stop: Calculating Airbag Distance
- physicsgirlie26
- · Replies 3 ·
Free-Fall Motion (w/ a tennis ball)
- Feldoh
- · Replies 4 ·
What is the time and speed of a rolling ball from tabletop to floor?
- CodyBr
- · Replies 3 ·
Compression Forces: Solve Homework Statement on P4.77 w/ Friction 0.663
- myelevatorbeat
- · Replies 3 ·
What Are BH Curve and Hysteresis in Magnetic Materials?
- amanmahadeshwar
- · Replies 1 ·
Initial Acceleration Homework: Find V0, a, and x0
- Heat
- · Replies 35 ·
Solve Particle Motion to Origin: Mechanics Question
- EbolaPox
- · Replies 1 ·
Finding Velocity of Connected Objects on Perpendicular Guide Rails
- luna02525
- · Replies 5 ·
Help with a physics/calc problem involving work.
- Migkiller
- · Replies 6 ·
How Do You Calculate Net Displacement in Multiple Directions?
- emilyjbee
- · Replies 1 ·
Textbook error? Incorrect derivation?
- PFStudent
- · Replies 15 ·