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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How Does Projectile Motion Affect a Tennis Ball Thrown from a Moving Car?
- Nubcake
- · Replies 15 ·
Can someone me find the magnitude of acceleration using forces?
- shaunamariexx
- · Replies 1 ·
Fraction of K.E. that turned into P.E.
- utkarshakash
- · Replies 6 ·
Double Slit - any interference?
- ZedCar
- · Replies 10 ·
Average force exerted by ball on the wall
- Tanya Sharma
- · Replies 6 ·
Physics of River Crossing: Solving for Angle and Component Velocity
- asheik234
- · Replies 2 ·
Electrostatics balancing gravitational, coulomb forces and tension
- FatPhysicsBoy
- · Replies 4 ·
Work done by expanding gasses on bullet
- bdh2991
- · Replies 4 ·
Calculating Impedance Using Capacitive Reactance
- PeachBanana
- · Replies 11 ·
Why does ΔE ≠ 0 when H2O condenses at 95°C?
- modx07
- · Replies 2 ·
Applications of Resonance in Weaponry?
- saw_tooth
- · Replies 2 ·
Work done in various frames of reference
- amal
- · Replies 4 ·
Finding the speed of an approaching object using the doppler effect and sonar
- jellyman
- · Replies 1 ·
RLC Circuit Calculations - How Do Wattmeters Work?
- fawk3s
- · Replies 5 ·
Finding Velocity from Acceleration Graph
- Nitrate
- · Replies 8 ·
Linear momentum of 2 objects colliding find velocity and angle
- studyhard
- · Replies 1 ·
Calculating Thermal Radiation: Power and Wavelength of a 47000K Object
- oldspice1212
- · Replies 3 ·
Ball thrown up vs dropped ball: which hits ground faster?
- Nubcake
- · Replies 8 ·
What does f(x) mean in trigonometric graphs?
- Dude22
- · Replies 2 ·
Center of Mass of a Triangle (uniform)
- hms.tech
- · Replies 1 ·
Vertical Mass-Spring Oscillator
- Peter G.
- · Replies 1 ·
Current through R1 immediately after closing RC circuit switch
- smithisize
- · Replies 5 ·
Circular motion-find the minimum speed
- Shad94
- · Replies 3 ·
A child pulls a wagon (find Tension)
- warnexus
- · Replies 1 ·
How Do Forces Interact in Stacked 45 Degree Wedges with Friction?
- kobylorat
- · Replies 3 ·
Finding tension in a two-body system without knowing acceleration
- flawlessbrown
- · Replies 3 ·
Projectile Motion Cannon Ball Question
- tatterspwn
- · Replies 6 ·
How Does Light Reach Bob in Special Relativity?
- Ned Stark
- · Replies 4 ·
Is Light Aware of Different Mediums in Fermat's Principle?
- aaaa202
- · Replies 2 ·
Acceleration in polar and rectangular form on a circular ramp
- dwangus
- · Replies 8 ·
Free body diagram of man in a box
- 1/2"
- · Replies 1 ·
Max Mass Supported by 5.6-Diameter Suction Cup
- savva
- · Replies 2 ·
Is Work Done by a Satellite Related to its Mass and Displacement?
- labview1958
- · Replies 1 ·
Calculating the coefficient of kinetic friction
- Baller123
- · Replies 1 ·
Work Done by Torque on Square Plate of Mass M
- 1/2"
- · Replies 4 ·
Moving a box with a force that is less than gravity
- kotchenski
- · Replies 3 ·
Finding Arc Length when given velocity and launch angle
- kansascity816
- · Replies 3 ·
Dragster accelerating at 49 m/s² over 325 m
- 1mai28
- · Replies 11 ·
Simple Harmonics and also some pressure
- 2Big2Bite
- · Replies 1 ·
Burning Calories by radiation (Stefan-Boltzman law)
- fordy314
- · Replies 1 ·
Physics homework problems help
- lqq889
- · Replies 1 ·
Tension on a string between two masses.
- thatguythere
- · Replies 9 ·
Solve Free Fall: Time Calculation for Rock Dropped from Tower
- Hassin
- · Replies 1 ·
2D kinematics - conveyer belt question
- morgand
- · Replies 1 ·
Finding Impulse and Velocity from Force vs. Time Graph
- MG5
- · Replies 5 ·
Quick 2D Motion Question (wind resistance)
- Vroc
- · Replies 6 ·
Relative Velocity Problem - Finding an angle of a boat going down a river
- Lavalamp22
- · Replies 4 ·
I don't understand reference frames
- PhizKid
- · Replies 8 ·
How Can I Solve 2D Kinematics Problems Using the Quadratic Formula?
- dolpho
- · Replies 5 ·
Gauss Law/Electric Potential Question(s)
- Kalookakoo
- · Replies 11 ·
Calculating Electric Field from Two Point Charges
- infected
- · Replies 1 ·
Calculating force of the femur on the knee cap.
- meaganl
- · Replies 1 ·
EMF direction using Fleming's left and right hand rules
- ofeyrpf
- · Replies 1 ·
Finding volume, significant figures and uncertainty for an iron sphere
- helpmepls1231
- · Replies 1 ·
How to Prove the Vector Identity Involving Curl and Dot Product Operations?
- aanabtawi
- · Replies 1 ·
Finding the force of the femur on the knee cap.
- meaganl
- · Replies 2 ·
Calculating Force - Intuition vs. Solution
- ohms law
- · Replies 1 ·
What is the tension and mass relationship in a three-block system on an incline?
- oreosama
- · Replies 4 ·
Projectile motion - horizontal seperation of two points
- hqjb
- · Replies 1 ·
Simple Harmonic Oscillator: Kinetic and Potential Energy Equilibrium
- Skotta
- · Replies 1 ·
Two capacitors connected in series
- songoku
- · Replies 5 ·
Distance Travled in the x direction on a circular path given force
- JarrodBrandt
- · Replies 3 ·
Using Kirchhoff's Rules - Calculating Currents
- PeachBanana
- · Replies 3 ·
Hooke's Law with Series Springs
- maulucci
- · Replies 2 ·
Calculating the Force Needed to Move Stacked Boxes with Friction
- oreosama
- · Replies 4 ·
Finding charge in a circuit with capacitors
- nautola
- · Replies 3 ·
Net electrostatic force on charge C from two other charges
- skg94
- · Replies 1 ·
Building a boomilever that holds 12 kg of sand
- lt337
- · Replies 5 ·
How to Find Coeffecient of Static Friction?
- "that guy"
- · Replies 2 ·
Three children slide down a hill.
- pmd28
- · Replies 4 ·
What is the gravity of a planet 2 times the radius and 3 times the mass of earth
- cmbswim89
- · Replies 6 ·
How Does Time Affect the Radioactivity of Substances with Different Half-Lives?
- cheetean
- · Replies 1 ·
Direction of the torque of the electric force
- november1992
- · Replies 5 ·
Gravitational Force: Tripling Distance - Factor 3 or 6?
- chuffman
- · Replies 1 ·
Voltage, capacitance and EM energy of a parallel plate capacitor
- bladesong
- · Replies 8 ·
Trajectory of a horizontally fired projectile
- szimmy
- · Replies 1 ·
Finding the resistance of the halved rod
- Northbysouth
- · Replies 2 ·
Calculating Frictional Force on a Moving Car on a Slope
- draugrslayer
- · Replies 1 ·
Newtons laws on car fuzzy dice
- piercegirl
- · Replies 2 ·
Is the Answer Key for Projectile Motion Problem Incorrect?
- kobylorat
- · Replies 1 ·
Coefficient of static friction on an inclined plane
- EliteLennon
- · Replies 2 ·
Why Do Different Kinematic Equations Yield Different Results for Free Fall?
- dolpho
- · Replies 6 ·
How Does Acceleration Affect an Astronaut's Apparent Weight?
- mysticbms
- · Replies 5 ·
Applications of Gauss' Law - two hollow spheres
- knowlewj01
- · Replies 2 ·
How Accurate Are These Projectile Motion Calculations?
- Nubcake
- · Replies 1 ·
How Is Electric Force Calculated Without Distance?
- Kiely
- · Replies 3 ·
Horizontal force on frictionless ramp
- phunphysics2
- · Replies 4 ·
Magnitude of Perpendicular Component.
- TalibanNinja
- · Replies 10 ·
Frictional force on a car on an inclined plane
- Butterfly30
- · Replies 2 ·
Finding work to move a point charge to the center of a thin ring.
- zbou
- · Replies 2 ·
Current state of play in modern physics for the dim
- robsbots
- · Replies 1 ·
Calculate capacitance with a dielectric
- Parad0x88
- · Replies 5 ·
Maximum speed of overdamped oscillator without crossing origin
- MeMoses
- · Replies 6 ·
Coin's motion under water Need Explanation
- kushubham9
- · Replies 1 ·
How Is Work Calculated When Compressing Gas?
- Negan57
- · Replies 3 ·
Request for hard Relativity questions
- some_letters
- · Replies 1 ·
Speed of two charged, insulated spheres?
- XianForce
- · Replies 3 ·
Determining an expression for acceleration
- kobylorat
- · Replies 1 ·
Is the Current in the Middle of a Balanced Wheatstone Bridge Always Zero?
- mafra
- · Replies 1 ·
Finding the yearly income from energy in W
- SereneKi
- · Replies 1 ·