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 is tangential accleration zero in uniform circular motion?
- pcsx22
- · Replies 5 ·
What forces keeps electrons from falling into nuclei?
- treehouse
- · Replies 14 ·
How to Derive Lorentz Transformations?
- Kyoma
- · Replies 1 ·
Magnitude and angles of a force
- IHave
- · Replies 3 ·
Projectile with different landing heights
- bionut
- · Replies 7 ·
Calculate Initial Speed Driving on a Crowded Freeway
- Robb380
- · Replies 7 ·
Which diameter to use for stress in a stress-strain graph
- TyErd
- · Replies 7 ·
Average Velocity of a Runner in 1500m Race
- bionut
- · Replies 12 ·
Why Do Thermometers Show the Same Reading in Ethanol and Water?
- BudsPro+
- · Replies 5 ·
Q Value for spontaneous fission and neutron induced fission
- bmarson123
- · Replies 1 ·
Finding the Upward Velocity of a Long Jumper's Flight Phase
- bionut
- · Replies 8 ·
Finding initial velocity from horizontal force and height
- gheelengooi
- · Replies 6 ·
I have no intuition. Momentum problem
- flyingpig
- · Replies 10 ·
Help! Find the Magnitude of a Displacement Vector
- DavidAp
- · Replies 2 ·
Calculating Velocity Components and Angle between Cars at an Intersection
- Gold3nlily
- · Replies 3 ·
Calculating Hurricane Distance with Vectors
- Maddy315
- · Replies 2 ·
Projectile with different landing height
- bionut
- · Replies 1 ·
Damped harmonic oscillator of spring
- katiandss
- · Replies 1 ·
Calculating Average Speed and Velocity for a Honeybee's Round Trip
- ugkwan
- · Replies 4 ·
Force to hold together a split charged hollow sphere
- xxhizors
- · Replies 2 ·
What is the Takeoff Angle for a Long Jumper?
- bionut
- · Replies 1 ·
Kinetic energy of daughter nucleus and alpha particle from alpha decay
- Doscience
- · Replies 1 ·
Basic Vectors: If vector A and C are given what is the magnitude of vector B?
- DavidAp
- · Replies 3 ·
Force equal to all three axis angles in magnitude and unit vector form
- IHave
- · Replies 1 ·
How to Use Newton's Second Law to Solve for Tension in Statics Problems?
- VitaX
- · Replies 2 ·
Determine electronic transitions by the emitted wavelength?
- FountainPen
- · Replies 2 ·
Total time In air for a projectile
- bionut
- · Replies 3 ·
Conceptual Projectile Motion with Wind Resistance
- JeanieAu
- · Replies 2 ·
Centre of mass and moment of mass
- jishitha
- · Replies 2 ·
Checking my bending moment and second moment of area calculations
- Dcoz
- · Replies 5 ·
Find displacement from a record of travel
- tacobeans1234
- · Replies 2 ·
Projectile Height Calculation: Baseball Thrown at 30 Degrees
- bionut
- · Replies 2 ·
How High Does a Jumper Raise Their Center of Gravity?
- bionut
- · Replies 3 ·
Rev/sec necessary to reach 20-g
- hyde2042
- · Replies 5 ·
Why is frequency 16/4 when a pulse is half a wave?
- Misr
- · Replies 7 ·
Misinterpretation of Newton's Third Law
- Kyoma
- · Replies 8 ·
How Do You Calculate the Orbital Period of a Satellite?
- oneredballoon
- · Replies 4 ·
What Affects the Fundamental Frequency of a String?
- Misr
- · Replies 8 ·
Wavefronts and Longitudinal Waves Displacement-Time Graph
- Peter G.
- · Replies 1 ·
Displacement around a 400m track
- bionut
- · Replies 1 ·
Finding magnitude and direction of vectors
- Maddy315
- · Replies 1 ·
When Does the Particle Reach Its Maximum Positive X Position?
- bmadkins
- · Replies 2 ·
What Distance from Charge \( q_1 \) Results in Zero Electric Field?
- craigl34
- · Replies 3 ·
On Electric and Gravitational Potential Energy
- Kyoma
- · Replies 3 ·
Pressure depth problem in English units instead of metric
- Sentience
- · Replies 9 ·
How Do You Calculate Displacement from a Vector Diagram?
- andyman21
- · Replies 7 ·
Photoelectric mass attenuation coefficient data
- Orlando
- · Replies 1 ·
Car acceleration and velocity on straight road then curved section
- vivident
- · Replies 2 ·
Motion in two or three dimensions
- Faka
- · Replies 6 ·
How to Calculate Young's Modulus from a Non-Linear Stress-Strain Graph
- TyErd
- · Replies 5 ·
Motion Diagram: Swimmer at a Swim Meet?
- andyman21
- · Replies 4 ·
What is the initial charge on each object?
- Kyoma
- · Replies 1 ·
How Do You Calculate Instantaneous Power in Electric Circuits?
- VitaX
- · Replies 3 ·
Unbalanced Wheatstone Bridge voltage across resisitors
- msslowlearner
- · Replies 1 ·
Dual Nature of Light: Waves and Particles
- logearav
- · Replies 4 ·
AS Physics Basic Kinematics Question
- seiei
- · Replies 18 ·
Do Firecrackers Explode Simultaneously on a Moving Train?
- explodingbird
- · Replies 2 ·
Finding angular velocity of bike wheel from linear speed
- bionut
- · Replies 8 ·
Quick yes or no charged disc e field equation question
- charlies1902
- · Replies 1 ·
Poloygon of forces to demonstrate that the crate is in equilibrium
- joe465
- · Replies 21 ·
Need Physics Help: Acceleration of a Cart w/ Working Out
- deluxenathan
- · Replies 2 ·
How Does the Electric Field Approximation Change When x is Much Smaller Than a?
- charlies1902
- · Replies 5 ·
Graphing e field for ring charge
- pyroknife
- · Replies 1 ·
Total mass of a cord, uniform density
- RedAnsar
- · Replies 2 ·
How to Calculate Dot Product of Two Vectors?
- IHave
- · Replies 1 ·
Police car catching a speeder at 30 m/s with 2.60 m/s² acceleration
- goluigi2196
- · Replies 8 ·
Acceleration of Head When Heading a Soccer Ball
- ang359
- · Replies 4 ·
How Fast Must a Meter Stick Move to Appear Half Its Length?
- alksjadf
- · Replies 6 ·
How long does it take for a ball thrown upward at 30 m/s to reach maximum height?
- tommy2st
- · Replies 11 ·
Tension in string, vertical plane
- phee
- · Replies 18 ·
Lift Problem involving forces, acceleration and speed
- Pho3nix
- · Replies 2 ·
How Do You Calculate Resistance in Complex Circuits?
- Maigowai
- · Replies 3 ·
Should the Bus Driver Brake or Accelerate at the Orange Light?
- hazel31
- · Replies 3 ·
Gravitational Force computing for components
- donyademonya
- · Replies 2 ·
Finding Distance Given Velocity and Time
- Simon777
- · Replies 12 ·
Converting Polar to Rectangular
- courtrigrad
- · Replies 7 ·
How Is Tension Calculated in the Middle of a Catenary Rope?
- varadgautam
- · Replies 1 ·
Finding gravitational force between two masses
- honeybunchpie
- · Replies 1 ·
Two masses sliding down slope with friction between them
- nadavg54
- · Replies 11 ·
Find resultant of multiple torques on a single rigid body
- WildEnergy
- · Replies 7 ·
Work done compressing ideal gas from 1 atm to 0.5 atm at constant external pressure
- quietrain
- · Replies 4 ·
Proving that line segments from a parallelogram vertex trisect the diagonal
- kpollock2
- · Replies 1 ·
What is the Maximum Acceleration a Man Can Achieve Pushing a Fully Loaded Cart?
- deluxenathan
- · Replies 2 ·
Calculate the time of a swimmer
- tavo0116
- · Replies 2 ·
How Is Coulomb's Law Applied to Calculate Forces Between Point Charges?
- azia
- · Replies 5 ·
Calculating Force on Albert in Lightweight Swing
- jeff1982
- · Replies 1 ·
Index of Refraction: Solving a Problem
- Shackleford
- · Replies 5 ·
Speed, change in velocity, and average acceleration
- Debbie-Marie
- · Replies 1 ·
How do I calculate diffraction intensity for a 2D lattice?
- nyxynyx
- · Replies 1 ·
Radius of gyration/power/rev per minute
- tommy56
- · Replies 3 ·
Motion of two balls which collide
- Faka
- · Replies 10 ·
Finding the energy field due to three positive point charges on a 4th negative charge
- MarieWynn
- · Replies 6 ·
Focus of Lens Submerged In Water
- JSGandora
- · Replies 2 ·
Why Does Freefall Acceleration Sign Differ Between Similar Problems?
- willcrys84
- · Replies 1 ·
Finding Vo in a two-loop circuit using KVL and KCL
- gatsbycollege
- · Replies 7 ·
Calculate the period and frequency of rotation
- joe465
- · Replies 2 ·
Finding the components of a Cartesian vector
- JON123
- · Replies 1 ·
Chair-lift at constant speed: confusion over passengers per minute, power, etc.
- furor celtica
- · Replies 1 ·
Finding the Angle of a Bowling Ball Ramp Problem
- mteykl
- · Replies 1 ·
Projectile Motion and Integration
- auk411
- · Replies 3 ·