Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Spring balance readings with objects on a frictionless incline
- maniacp08
- · Replies 8 ·
Pellet and hot air balloon collision altitudes
- PhysicFailure
- · Replies 3 ·
Does a Decreasing Magnetic Field Induce Conventional Current?
- learning_phys
- · Replies 4 ·
Can you solve this unexpected projectile explosion problem?
- matematikawan
- · Replies 5 ·
Kinematics equation which is Y = vt+ 1/2gt^2
- kmikias
- · Replies 2 ·
Calculating Time and Distance in a Kinematics Train Problem
- joe215
- · Replies 3 ·
The Gravitational Force and the distance from the earth
- Kaze105
- · Replies 4 ·
Finding the Height of a Gondola Ski Lift Using Trigonometry
- star20
- · Replies 2 ·
How High Was the Stone When It Started Falling?
- joe215
- · Replies 3 ·
Calculating Height from Acceleration and Distance: A Ball Drop Experiment
- Hellreaver
- · Replies 5 ·
Acceleration graph for a girl jumping on a trampoline
- princessabeez
- · Replies 1 ·
Electrical Energy Storage, Capactor, Battery, Motor
- yayirunin2car
- · Replies 2 ·
Physics Rotating Disk, Moment of Inertia, Angular Momentum, Angular Velocity
- Darkalyan
- · Replies 12 ·
Simple but unsure, compound questions
- vysis
- · Replies 7 ·
Calculating Slide Distance on an Inclined Surface with Friction
- vysis
- · Replies 4 ·
Why Does a Thin Cylindrical Shell Share the Same Moment of Inertia as a Hoop?
- raycao88124
- · Replies 3 ·
Time for wrecking ball to fall to ground given halfway time
- xlaserx7
- · Replies 6 ·
Potential difference and electron speed
- Kris1120
- · Replies 2 ·
Normal force and acceleration of 7 kg block on 20° frictionless incline
- maniacp08
- · Replies 4 ·
How Fast Does a Block Travel on a Frictionless Surface After 3.7 Seconds?
- BrettL789123
- · Replies 4 ·
Planck's constant from photoelectric effect with potassium
- heinsmit
- · Replies 1 ·
Kinematics Problem with gravity, and possibly varying force?
- Darkalyan
- · Replies 18 ·
Finding the shortest possiblee travel time
- dotfortun3
- · Replies 5 ·
Magnitude of Average Acceleration
- jets29
- · Replies 1 ·
Equation for work of a reversible isothermal compression
- cheertcc101
- · Replies 1 ·
What is the Electrostatic Force on Particle 3 in a Triangular Configuration?
- jmckennon
- · Replies 1 ·
Friction between two bodies (theoretical situation)
- limorgav
- · Replies 1 ·
At what time do the two stones reach the same height?
- blueskadoo42
- · Replies 4 ·
What Is the Instantaneous Velocity at t=3.0 s?
- BeckyStar678
- · Replies 2 ·
Does Changing Velocity Direction Affect Acceleration and Speed?
- BeckyStar678
- · Replies 3 ·
Speedboat slowing to reach a buoy 100m ahead
- Husker70
- · Replies 3 ·
Solving Tangential Speed at Daytona Beach FL
- ERAUin08
- · Replies 2 ·
Design experiment testing Bernoulli's principle with wing thickness or angle
- OhyesOhno
- · Replies 8 ·
How Does Changing Mass Flow Rate or Diameter Affect Reynolds Number?
- cheertcc101
- · Replies 1 ·
Force Problem, Fuzzy Dice hanging from a rearview mirror
- cmsoccer21
- · Replies 1 ·
How many hours for a snail to travel 1.00 km at 5.25 cm/min?
- lettertwelve
- · Replies 14 ·
Motion in one dimension- Find acceleration and original velocity
- Xen
- · Replies 3 ·
Is the Normal Force Component in Superelevated Curves the Centripetal Force?
- fluidistic
- · Replies 2 ·
The Effect of Force on a Spring-Mass System
- sri.karmarkar
- · Replies 3 ·
Equilibrium force problem torque
- gnsdraw
- · Replies 3 ·
Finding launch angle and speed from maximum height and range
- darealprince
- · Replies 1 ·
DNA strand stretching with spring constant and elastic energy
- girlinterrupt
- · Replies 2 ·
Maximum distance from wall before beam slips with friction
- gnsdraw
- · Replies 2 ·
Finding the intersection of a plane
- clickcaptain
- · Replies 1 ·
Finding launch angle and speed from height and range
- gamacmua
- · Replies 1 ·
Convection equation thermodynamics
- yossup
- · Replies 1 ·
I can't seem to understand 1d motion.
- jllorens
- · Replies 4 ·
Solve Wheatstone Bridge Circuit: Voltage B-D
- rave7
- · Replies 2 ·
Calculate Net Accelerating Force on 2400kg Truck with 15s 400m Run
- pat666
- · Replies 1 ·
Determining Particle Acceleration in Uniform Electric Field
- mzmad
- · Replies 9 ·
Kinematics no number solution question issue
- mrjoe2
- · Replies 7 ·
Grasshopper's four jumps: finding resultant displacement with vector components
- oreocookie
- · Replies 2 ·
Hello me im new to physics and dont know what to do
- NewStudent101
- · Replies 3 ·
Motion problem when acceleration is constant
- brsullivan
- · Replies 1 ·
What Is the Speed of an Arrow at the Top of Its Flight?
- mochilili
- · Replies 1 ·
Calculating Weight of Collar in Equilibrium with Spring Force
- 838
- · Replies 8 ·
Harmonic motion of the dipole?
- StephenDoty
- · Replies 3 ·
Displacement of minute hand tip from 8:00 to 8:20 and 8:00 to 9:00
- cedwar71
- · Replies 1 ·
Thinnest MgF2 film for strong reflection at 680 nm
- mithraz87
- · Replies 1 ·
Simple gravity question no math involved
- nivush1991
- · Replies 3 ·
Train acceleration and braking distance problem, plus car race overtaking
- Prometheos
- · Replies 8 ·
Projectile and gravitation problem
- fluidistic
- · Replies 2 ·
Non-constant acceleration kinematics
- blackrose75
- · Replies 2 ·
Acceleration due to gravity of two objects
- omgitsmonica
- · Replies 2 ·
How long after release does a mailbag dropped from a helicopter reach the ground?
- jessedevin
- · Replies 11 ·
Forces on elevator passenger with varying acceleration
- pmelt
- · Replies 5 ·
Thermodynamics - hot item placed in water
- portofino
- · Replies 10 ·
Why use initial velocity 5m/s not 20.9m/s for falling package from balloon
- jwxie
- · Replies 3 ·
Two Dimensional Kinematics Question
- ayreia
- · Replies 3 ·
The Law of Conservation of Momentum
- temaire
- · Replies 1 ·
Electric Field Problem and simple pendulum
- bodensee9
- · Replies 1 ·
Predict value of g from displacement equation
- cb3930
- · Replies 8 ·
Why Does a More Viscous Liquid in a Can Allow It to Roll Further Down a Ramp?
- Solaxys
- · Replies 1 ·
Minimum speed for ramp jump at 10 degree takeoff angle
- endeavor
- · Replies 3 ·
What is the gravitational Field?
- grouchy
- · Replies 6 ·
How to Solve a Long Jumper's Kinematics Problem?
- kmikias
- · Replies 3 ·
One Dimensional Kinematics of Object
- dbzheir
- · Replies 2 ·
I with a distance problem involving constant acceleration
- science_rules
- · Replies 8 ·
How much time elapses before the stone hits the ground?
- D4b34r5
- · Replies 4 ·
Solving for Time: Dropped Pop Can Reaches the Ground
- powerxranger1
- · Replies 5 ·
Insulator Conductor Concept Question
- StephenDoty
- · Replies 11 ·
Dimensionally corect equation ?
- star20
- · Replies 3 ·
Motion Calculations. Does the child catch the truck problem.
- powerxranger1
- · Replies 3 ·
Tension in two cords supporting a 10kg mass at 30 and 45 degrees
- xCanx
- · Replies 4 ·
Finding the voltage at node C in a circuit
- wiz0r
- · Replies 2 ·
What angle should a long jumper jump at?
- mahtab
- · Replies 1 ·
Resultant force from two perpendicular forces F1 and F2
- mahtab
- · Replies 1 ·
What are the dimensions of angles?
- mahtab
- · Replies 3 ·
[111] Throw-up problem - Launch/freefall
- WPCareyDevil
- · Replies 1 ·
A320 Jetliner- Takeoff distance.
- Phoenixtears
- · Replies 3 ·
How Do You Calculate Vector Components on an Inclined Plane?
- possum30540
- · Replies 2 ·
Harmonic motion through a ring of charge
- king vitamin
- · Replies 2 ·
Jetliner displacement magnitude and angles from LA
- possum30540
- · Replies 3 ·
Minimum muzzle velocity for a 7.2 g lead bullet to melt on impact
- yossup
- · Replies 10 ·
Vector notation. just an explanation
- Jbright1406
- · Replies 16 ·
Problem Physics I : gravitation
- fluidistic
- · Replies 4 ·
Measurement uncertainty question
- Sheneron
- · Replies 6 ·
How Do Crumple Zones Affect Impulse and Force in Crash Tests?
- RajdeepSingh7
- · Replies 1 ·
Conducter in a Parallel Capacitor
- Trenthan
- · Replies 4 ·