Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Measuring Elasticity of Balls using Collision Method
- camperstrike
- · Replies 1 ·
How Does Magnification Change When Switching from Convex to Concave Mirror?
- gamesandmore
- · Replies 1 ·
How is Rotational Kinetic Energy Calculated for a Merry-Go-Round?
- lgmavs41
- · Replies 1 ·
Can an Airplane Fly Fast Enough to Stay in Constant Sunlight?
- teddef21
- · Replies 1 ·
Calculating Average Force Due to Air Resistance in Projectile Motion
- dbtarz
- · Replies 4 ·
Mechanical Q: Find Air Resistance Force from .750kg Proj. at 18.0m/s
- dbtarz
- · Replies 1 ·
Man running on conveyor belt in opposite directions
- Siracuse
- · Replies 2 ·
Ball bouncing height after elastic collision with dropped block
- Fizzix
- · Replies 1 ·
How Much Force Must the Man Exert to Move the Box?
- Ryo124
- · Replies 3 ·
Finding tension and force at point P for a suspended picture frame
- ace214
- · Replies 11 ·
Finding boom mass from crate weight and cable tension
- delecticious
- · Replies 12 ·
How do optical aberrations affect microscopy axial resolution?
- kattie
- · Replies 3 ·
Car crash-completely inelastic collision?
- pebbles
- · Replies 1 ·
How Is Impulse Calculated in a Two-Dimensional Collision?
- chaotixmonjuish
- · Replies 1 ·
Kinetic Energy and Rolling motion
- Nitrag
- · Replies 16 ·
How much work is done on a gas?
- Chele
- · Replies 2 ·
What Is the Force of the Trout on the Carp in This Physics Problem?
- Grapz
- · Replies 8 ·
Finding Total B-Field and Direction in a Wire-Magnet System
- whitetiger
- · Replies 3 ·
Calculating Wavelength of H_α for a Receding Star
- azatkgz
- · Replies 1 ·
Maximum energy and velocity in spring oscillation problems
- ph0bolus
- · Replies 5 ·
Work done by braking force on a decelerating car
- BuBbLeS01
- · Replies 6 ·
Gauge pressure needed for firehose to spray 20m high
- vachan
- · Replies 1 ·
How Does a Satellite Maintain a Stationary Position Above Earth?
- ilkjester
- · Replies 1 ·
Forces on an object falling to earth Question
- asura
- · Replies 3 ·
Utilizing Coefficients of Static and Kinetic Friction in a Pulley System
- Saladsamurai
- · Replies 7 ·
Minimum Force ( I don't know why this is not correct)
- Saladsamurai
- · Replies 7 ·
Why does a ball on a dipped ramp finish faster than on a straight ramp?
- Grapz
- · Replies 3 ·
Angular Velocity of the Spinning Earth
- Mr. Sinister
- · Replies 19 ·
Angle of Queue Ball after elastic collision
- luna02525
- · Replies 2 ·
Rocket Propulsion Speed of Fragments
- tmle04
- · Replies 6 ·
Rotational Energy and Pulley System
- GoldShadow
- · Replies 5 ·
Using the conservation of energy equation
- deNsity
- · Replies 7 ·
Finding Potential Difference in a Simple Circuit
- CelticDynasty
- · Replies 8 ·
Circular Motion of a car on a track
- jonasK
- · Replies 1 ·
Solving the Problem of a Bus Running Out of Fuel on a Hill
- BuBbLeS01
- · Replies 2 ·
How Does Elastic Collision Determine the Mass and Speed of an Unknown Nucleus?
- shotgunbob
- · Replies 1 ·
Tension and Torque homework challenge problem.
- Tlocc
- · Replies 4 ·
Finding the incline of the slope
- happyjoe
- · Replies 3 ·
Frictionless Surface Homework: Newton's 3rd Law and Momentum
- Ryo124
- · Replies 7 ·
How Fast Does a Ball Roll Down an Inclined Plane?
- sheri1987
- · Replies 7 ·
Upward Normal Force Exerted by Floor on Elevator Passenger
- Heat
- · Replies 5 ·
Mountain climber - center of gravity, tension, angles
- BlueSkyy
- · Replies 1 ·
Normal force and net force on incline at 30, 45, and 60 degrees
- pebbles
- · Replies 11 ·
If circle circumference changes by factor of 3, how does area change?
- AKahan
- · Replies 3 ·
Two objects - when do they meet?
- dvdqnoc
- · Replies 4 ·
Is the Calculation of Force on a Bullet in a Rifle Barrel Correct?
- eb41490
- · Replies 1 ·
What Happens to the Bananas as the Monkey Climbs Up the Rope?
- odie5533
- · Replies 2 ·
Understanding Centripetal Force: Solving for Friction on a Race Car
- Ryo124
- · Replies 3 ·
What is the Mass Ratio m/M in an Inelastic Collision?
- DkMuse
- · Replies 2 ·
SHM - mass-spring system on frictionless horizontal surface
- trusean
- · Replies 4 ·
Making a graph of acceleration vs. sin of theta
- pebbles
- · Replies 2 ·
Resonance and air columns open at one end and closed at the other.
- Spookie71
- · Replies 2 ·
Solving Masses on a Beam Problem with Scales
- delecticious
- · Replies 6 ·
Calculating Work Done on Crate by Truck
- Oliviam12
- · Replies 1 ·
Non-conservaite force and Kinetic Energy
- Oliviam12
- · Replies 3 ·
How Fast Must Turbine Blades Spin to Store Energy?
- scott.leever
- · Replies 1 ·
How Do You Calculate Initial Velocity in a Vertical Projectile Problem?
- smzee27
- · Replies 5 ·
Tension in a string of a object being pulled by a magnet
- ~christina~
- · Replies 6 ·
How do you transform 4-vector A = (5,4,3,0) into B = (5,5,0,0)?
- Niles
- · Replies 1 ·
Solving a Physics Problem with Jetliner Takeoff Speed - Casey's Story
- Saladsamurai
- · Replies 9 ·
Time dependent force F(t)=20t N/s on 4 kg object
- ~christina~
- · Replies 8 ·
Two blocks and compressed spring
- chaotixmonjuish
- · Replies 8 ·
Max Velocity for a Car over a Speed Bump in Uniform Circular Motion
- astrokat11
- · Replies 2 ·
Calculating the energy of light
- wisdom32
- · Replies 5 ·
Solve Kinematics Question for Ball Released at 15m/s and 10m Altitude
- vericolorful
- · Replies 4 ·
When is the distance to the origin decreasing?
- Destrio
- · Replies 33 ·
Calculating Work and Distance on an Inclined Plane
- kanta
- · Replies 3 ·
Induced Current in a Circuit by a Moving Magnet
- samee
- · Replies 1 ·
Does Component Configuration Affect Resonant Frequency Calculation?
- pka
- · Replies 1 ·
What is the angle and angular speed of a flight from Kampala to Singapore?
- aligass2004
- · Replies 24 ·
Solving Vector Dynamics Problems
- VanKwisH
- · Replies 3 ·
Calculating Weight and Velocity on a Circular Track: Formulas and Examples
- physics-dummy
- · Replies 4 ·
Catch the Bus or Frustration Distance?
- motoxtremechick
- · Replies 23 ·
How Do I Calculate Corrosion Rate in Iron?
- Wiccan_Childe
- · Replies 3 ·
Calculating Fnet and coefficient of friction for inclined plane lab
- stove167
- · Replies 1 ·
Understanding Friction Graph: Identify Segments
- petern
- · Replies 3 ·
Solve .5m/s^2(t^2)=6m/s(t)-25m Kinematics Equation
- motoxtremechick
- · Replies 3 ·
Grindstone angular acceleration
- Vanessa23
- · Replies 1 ·
Minimum Work Required to Move a 10 kg Box up a 30° Slope
- clipperdude21
- · Replies 6 ·
Tension: Force + Velocity. Breaking Strength.
- nj_phy
- · Replies 1 ·
How Much Work Does a Non-Ideal Gas Perform During Expansion?
- ODrule
- · Replies 1 ·
How Do I Correctly Isolate Variables in Physics Equations?
- CanadianPhys
- · Replies 3 ·
Center of Mass between the Earth and Sun
- chaotixmonjuish
- · Replies 25 ·
Finding distance with velocity, Uk
- habs.fan
- · Replies 2 ·
What is the equilibrium condition for a double inclined plane?
- pooface
- · Replies 8 ·
What Is Centripetal Force and How Is It Calculated?
- St@rbury
- · Replies 1 ·
What is centripetal acceleration?
- St@rbury
- · Replies 2 ·
Calculating Distance Traveled by a Suitcase on a Conveyor Belt
- nerdgirl909
- · Replies 2 ·
Riding a Bicycle: What Will Happen?
- Ryo124
- · Replies 4 ·
Calculating Force of Car and Driver at Rest
- Ryo124
- · Replies 3 ·
Biophysics problem - Pressure Change due to Plane Dive
- Red88
- · Replies 6 ·
Simple Pendulum Homework: Amplitude of 25 cm/s Push
- trusean
- · Replies 1 ·
How Do You Calculate Spring Stretch When Kinetic and Potential Energy Are Equal?
- quickclick330
- · Replies 10 ·
What is the initial velocity of the second ball in a 2-dimensional collision?
- pinkyjoshi65
- · Replies 3 ·
How Do You Solve for Force B in Rigid Body Equilibrium?
- jesuslovesu
- · Replies 1 ·
Centripetal force in circular motion with tension and normal force
- raman911
- · Replies 1 ·
Solve for three vectors from three vector equations
- rphmy
- · Replies 2 ·
Blocks on a slant(with friction)
- rphmy
- · Replies 1 ·
Limits of Functions with several variables
- mit_hacker
- · Replies 3 ·
Friction Force on a System at Rest
- odie5533
- · Replies 1 ·