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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Tortoise vs. Hare Race: Length of Race Solved
- pelikon
- · Replies 1 ·
What Speed Is the Bat Catching Up to Its Prey?
- jrrodri7
- · Replies 1 ·
What is the breakdown of electric power sources in Salem, MA?
- Saladsamurai
- · Replies 11 ·
Does anybody know the answer to this physics problem?
- darealprince
- · Replies 2 ·
Calculate objects Position/acceleration as function of time
- anubis01
- · Replies 1 ·
Vector 2B - Vector A (graphical method)
- s31t8n8
- · Replies 4 ·
Calculating Normal Force of Log on Bullfrog
- rebeccc
- · Replies 1 ·
Thermal Expansion of a gold ring
- thaixicedxtea
- · Replies 2 ·
Block of ice on frictionless surface
- rebeccc
- · Replies 1 ·
Astronaut Problem: 68kg Force at 12 Acceleration
- rebeccc
- · Replies 1 ·
How Do You Calculate the Final Velocity of a Skydiver?
- KaseyK
- · Replies 1 ·
What Is the Value of n in the Gas Law Equation for a Given Process?
- Saladsamurai
- · Replies 3 ·
Hammer + Nail forces Will answer in response
- sadakaa
- · Replies 1 ·
Truck Parked on 15° Slope: A 4000 Perspective
- rebeccc
- · Replies 1 ·
Is the Tension Zero When Pulling a Box Up an Incline?
- hp-p00nst3r
- · Replies 10 ·
Finding coefficient of kinetic friction from car braking distance
- kkowale4
- · Replies 3 ·
Photons emitted from a light bulb problem
- fishh
- · Replies 3 ·
What is the height of the cliff?
- Nghi
- · Replies 3 ·
Largest slit width with no minima in single slit diffraction
- bcjochim07
- · Replies 1 ·
Magnitude and direction of the resultant.
- missie
- · Replies 1 ·
Finding original speed when increasing by 5 mph decreases mile time by 13 s
- papi
- · Replies 3 ·
Electric field at center of hole in charged spherical shell
- bodensee9
- · Replies 13 ·
How Is Phase Difference Calculated Between Two Sound Waves?
- jrrodri7
- · Replies 1 ·
Kinematics Constant Acceleration
- anubis01
- · Replies 2 ·
Halfway done Force/Friction Problem
- ff4930
- · Replies 4 ·
How Do You Solve Motion and Collision Problems in Grade 12 Physics?
- hoooossein
- · Replies 1 ·
Kinematics I think it's right, but the computer says NO
- lmbiango
- · Replies 18 ·
Accelerating Cart on an Incline: Confirming the Effects of Gravity and Friction
- G.Sulk
- · Replies 5 ·
Time for sun to disappear again after standing up on beach
- Kudo Shinichi
- · Replies 3 ·
What is the Equivalent Resistance of this Messy Circuit?
- elcotufa
- · Replies 11 ·
Finding distance traveled by 5kg object with friction and applied force
- Physics258744
- · Replies 2 ·
Understanding Tension: Rope Forces and Equilibrium
- zach3535
- · Replies 1 ·
2D Kinematics, airplanes crashing wtf?
- lmbiango
- · Replies 12 ·
Finding static and kinetic friction coefficients for a box on concrete
- Jazzybelle4
- · Replies 9 ·
Ball Shot Up Ramp: Magnitude of Displacement
- B-80
- · Replies 3 ·
How Do You Calculate Satellite Travel Times and Orbits?
- haxxorboi
- · Replies 2 ·
What is the minimum distance she can be from the waterfall?
- kmikias
- · Replies 1 ·
Electric Field Plastic Rod Problem
- bodensee9
- · Replies 4 ·
Electric Field and Force of a Charged Particle Near a Stationary Ring
- bodensee9
- · Replies 2 ·
Electric field between parallel plates of 1 m² separated by 0.01 m
- 9giddjl
- · Replies 2 ·
How Are Superconductors Revolutionizing Maglev Train Technology?
- linda_Power
- · Replies 2 ·
When will both of the balls be at the same height?
- diaox3
- · Replies 2 ·
Find magnitudes of FA and FB for 8.27 kg object with given accelerations
- JJones_86
- · Replies 2 ·
What Does l Represent in the Equation l/x?
- psylo1
- · Replies 3 ·
Determine the distance between the helicopter and the package 2.0 seconds after the rope is cut.
- ross the hoss
- · Replies 9 ·
Calculating Height of an Apartment House from Dropped and Thrown Balloon Data
- Michael805
- · Replies 2 ·
How Do Football Patterns Affect Player Displacement and Angles?
- mai786
- · Replies 1 ·
Changing from cartesian to polar
- CompStang
- · Replies 1 ·
Will a Rock Thrown Upward Reach the Top of a Castle Wall?
- BeckyStar678
- · Replies 1 ·
What is the new rotation speed and work done by a mouse on a spinning turntable?
- Jar9284
- · Replies 1 ·
Non Symetrical Parabola Question
- Husker70
- · Replies 7 ·
Mass sliding down an incline plane(with friction)
- Benzoate
- · Replies 2 ·
Vector velocity calculations giving wrong answers
- xCanx
- · Replies 1 ·
How Is Time Calculated for Angle Reduction in Javelin Throw Projectile Motion?
- sweetlavender
- · Replies 3 ·
Finding tensions T1 and T2 in a three block system pulled at 60N
- CaptainSFS
- · Replies 1 ·
How Can You Find the Treasure While Avoiding the Dragon?
- Lamnia
- · Replies 5 ·
Conservation of Angluar Momentun question
- ziptrickhead
- · Replies 1 ·
What Is the Time Between Waves Hitting the Boat?
- Foxhound101
- · Replies 2 ·
Struggling to Understand Forces and Acceleration
- JJones_86
- · Replies 1 ·
Kinematics how high does it go problem. Check
- Eric_meyers
- · Replies 6 ·
How to find the angle between F2 and the x axis?
- Godblessyou
- · Replies 2 ·
Relative Velocity of Car B to Car A at Different Speeds
- missie
- · Replies 7 ·
Units of Calculation: Conversion Questions
- parcerita
- · Replies 1 ·
What is the vector force exerted by Particle B on Particle A?
- shinobi12
- · Replies 2 ·
Find Length of Sun Mass in km: Solving G, c, M Units
- fk378
- · Replies 3 ·
Tennis Lob question Very confusing
- carrbaseball
- · Replies 5 ·
Angular Momentum Conservation Problem
- akan
- · Replies 4 ·
Do the two balls meet at the halfway point?
- LadiesMan
- · Replies 12 ·
Question #2: Relative Velocity of Two Trains Moving in Opposite Directions
- missie
- · Replies 3 ·
What does the x = 0 notation mean?
- Unassuming
- · Replies 2 ·
Calculating the Spring Constant of a Bungee Cord Used for Car Bungee Jumping
- pat666
- · Replies 7 ·
Spring constant, period and max acceleration for 0.2kg mass on spring
- nokia8650
- · Replies 2 ·
If radius relative error is 5%, what is the relative error for circumference?
- Ashley11
- · Replies 8 ·
Force exerted at given angle, constant velocty, find weight
- AR8742
- · Replies 5 ·
Solve Ball Vector Problem: Distance, Vertical & Horizontal Components
- mossfan563
- · Replies 1 ·
Refractive index and speed of light
- 3instein
- · Replies 3 ·
2D Kinematics I tried so hard
- lmbiango
- · Replies 4 ·
Do the distance between two dropped balls stay constant?
- homeworkboy
- · Replies 5 ·
Object dropped from plane - where does it land?
- x^2
- · Replies 1 ·
What motion occurs when a distance vs time graph has zero, constant, or changing slope?
- BeckyStar678
- · Replies 1 ·
Graphing Motion problem (motion in a straight line)
- marienmn
- · Replies 2 ·
How Is the Maximum Temperature of an Otto Cycle Engine Calculated?
- gnarkil
- · Replies 1 ·
Thermodynamics - efficiency from pv diagram
- portofino
- · Replies 14 ·
Why is the spin of hydrogen atom 1/2 in NMR spectroscopy?
- learning_phys
- · Replies 9 ·
How Do You Calculate the Constants A and C for a Rocket's Trajectory Equation?
- azn4lyf89
- · Replies 1 ·
Speed of projectile after t seconds
- Vanessa23
- · Replies 1 ·
Force exerted by spaceship on astronaut during liftoff from Zuton
- sebas531
- · Replies 3 ·
How High Did the Object Fall If It Took 1.5 Seconds to Drop the Last 30 Meters?
- jaypea65
- · Replies 1 ·
Efficiency of an engine performing the Joule ideal-gas cycle.
- Jacobpm64
- · Replies 3 ·
Lightning and Airplanes: Solving a Distance Problem
- computerex
- · Replies 1 ·
Understanding Voltage Drops in RCL Circuits
- mganap
- · Replies 6 ·
Simple Harmonic motion of sand grain
- nokia8650
- · Replies 8 ·
Finding initial velocity and theta, given range and height
- Seri
- · Replies 1 ·
Projectile motion with a bounce
- lax1113
- · Replies 4 ·
Physics car kinematics question
- Eric_meyers
- · Replies 2 ·
Is Temperature Twice as Hot as Yesterday?
- Kushal
- · Replies 2 ·
Multiple dielectrics in one capacitor
- Rake-MC
- · Replies 1 ·
Net Electric Field between two line charges (different densities)
- LostTime77
- · Replies 12 ·
Tension in ropes pulling two boxes with 0.6 m/s² acceleration
- ff4930
- · Replies 7 ·
How Do You Calculate Tension in a String When Accelerating Upwards?
- Kajayacht
- · Replies 1 ·