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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Circular Motion: General Equations
- St@rbury
- · Replies 1 ·
Friction force between two sliding blocks on a horizontal surface
- Ahwleung
- · Replies 3 ·
Finding the orbital radius of a GPS satellite with 8-hour period
- Ryo124
- · Replies 36 ·
Merry-go-round rotation: time for first and second 2.53 revolutions
- shell4987
- · Replies 5 ·
Final speed of two billiard balls
- pebbles
- · Replies 4 ·
Is Kinetic Energy Direction-Dependent?
- BuBbLeS01
- · Replies 4 ·
Application with conservative and nonconservative forces
- Jacobpm64
- · Replies 2 ·
How Fast Does the Rim of a Spinning Disk Travel?
- Nitrag
- · Replies 1 ·
Finding spring constant from dart gun compression and muzzle velocity
- Oliviam12
- · Replies 2 ·
What Is the Angle of Initial Velocity for a Projectile at Half Maximum Height?
- Lmaonade
- · Replies 2 ·
Star temperature from B-V color
- poiuy
- · Replies 1 ·
Solving Enigmatic Physics Problems: Acceleration and Frictional Force Examples
- Flashtf
- · Replies 1 ·
Sound intensity is measured on a logarithmic scale
- matt23
- · Replies 1 ·
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 ·