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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Solving Rotational Dynamics: 4.0 Nm Torque, 4.0 kg Cylinder, 2.0 s
- kingyof2thejring
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Question regarding Conservation of Energy
- xxdrossxx
- · Replies 5 ·
Calculating Max Emf from Electric Generator Coil
- mr_coffee
- · Replies 10 ·
Gravitational force calculations and examples
- DarkIndiglo
- · Replies 2 ·
Calculating Centripetal Force: 40.0kg Child on 9.0m Ferris Wheel
- jesuslovesu
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Torque equation for a ladder leaning against a wall
- brad sue
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Centripetal Force and maximum speed
- kingyof2thejring
- · Replies 6 ·
Finding current problem, where did i mess up?
- mr_coffee
- · Replies 2 ·
How Does Physics Explain a Ball Shot from a Spring into a Ballast?
- twjtiger
- · Replies 1 ·
Angular Velocity of Two Attached Disks with Different Masses
- twjtiger
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Wave transmission through nonuniform wire with changing mass density
- ilovephysics
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How Does a Star's Rotation Period Change If Its Diameter Shrinks?
- Punchlinegirl
- · Replies 6 ·
How Do You Calculate Speed and Time of a Falling Object with No Air Resistance?
- bticu
- · Replies 3 ·
Why does a duck appear split in half when viewed at an angle through water?
- sc3103
- · Replies 2 ·
Speed of light spot on screen from rotating mirror
- don23
- · Replies 2 ·
Solving Angular Motion Problem Without Angular Momentum
- asdf60
- · Replies 5 ·
Banking angle for exit ramp, satellite speeds and orbital radius
- ConsoleMaster
- · Replies 2 ·
A difficult mechanic problem with spring
- cfkorea
- · Replies 2 ·
Find Sound Power of Motor Car - 0.354 W
- Clari
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What are phasor and sinor diagrams and how do you interpret them?
- Lord Loh.
- · Replies 5 ·
Understanding the Lens Equation: Fish & Pattern Location
- meadow
- · Replies 3 ·
How Is the Spring Constant Calculated for a Bungee Jump?
- joex444
- · Replies 3 ·
Discrete modes of vibration for sonometers
- T7
- · Replies 3 ·
Equilibrium at x=0 with infinite second derivative and zero frequency
- fahd
- · Replies 2 ·
Gravitation deep hole physics problem
- brad sue
- · Replies 5 ·
Solving Apparent Paradox: Collision of Two Bodies
- damitr
- · Replies 1 ·
Centrifugal Vertical Tangential Inertia?
- kliide
- · Replies 4 ·
Impulse and force in a baseball-bat collision
- Elysium
- · Replies 9 ·
Calculating Force of a Falling Book: Mass, Velocity, and Impact Time"
- drod
- · Replies 2 ·
Simple pendulum problem - confirmation
- Elysium
- · Replies 1 ·
Satellite Motion: Calculate Speed & Time to Orbit Earth
- SS2006
- · Replies 5 ·
How can I find the tension in a pendulum cord at a specific angle?
- Jordan_
- · Replies 11 ·
How is R2 in parallel with R1 + R3 in this circuit?
- phyznut
- · Replies 22 ·
ANS: Forces and Angular Motion at the North Pole and Equator
- SS2006
- · Replies 4 ·
Centripetal Force: Calculating Tension in Conical Pendulum
- kingyof2thejring
- · Replies 2 ·
Elastic collision - finding ratio between m2 and m1, v2 and v1
- an_mui
- · Replies 4 ·
Why does pushing on a smooth floor require less work than lifting vertically?
- dragon513
- · Replies 2 ·
Velocity after slingshot at Jupiter
- suspenc3
- · Replies 1 ·
How Long to Discharge a Capacitor in a Disconnected Circuit?
- thenewbosco
- · Replies 5 ·
Speed of electron when kinetic energy given
- gr3g1
- · Replies 2 ·
Transfer of Heat: Temperature in Kelvins
- MKM
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How Do I Calculate Gravitational Force Between Two Objects?
- hshphyss
- · Replies 2 ·
What is the change in its thermodynamic temperature?
- jakeowens
- · Replies 1 ·
Transfer of Heat: mass of liquid helium that boils?
- MKM
- · Replies 1 ·
Find Velocity After Glancing Collision: Antother Collision
- suspenc3
- · Replies 2 ·
Amplification of energy by a pulley and a a balance?
- eosphorus
- · Replies 24 ·
How to Find the Torque About a New Point Using Vector Cross Products?
- Impathy
- · Replies 4 ·
Time for two 1 kg masses to collide under gravity
- squiffy
- · Replies 14 ·
Why friction decreases measured acceleration in a free-fall lab
- suspenc3
- · Replies 1 ·
11 problems on energy, work, power, elasticity and coplanar forces
- Scarface_Joker
- · Replies 1 ·
Solve for Tension in A-Shaped Ladder
- TastyTyr
- · Replies 2 ·
Find the angular speed of the system right after the collision
- Impathy
- · Replies 2 ·
Simple Harmonic Motion formula
- raven101
- · Replies 5 ·
Net force on green block when purple block is pulled with friction
- Lisa...
- · Replies 2 ·
(Projectile motion) Little question on a problem I posted 5 days ago
- Lisa...
- · Replies 11 ·
Finding Impulse and Momentum on a Frictionless Surface
- Tubs
- · Replies 4 ·
Hanging mass for constant speed on 30° incline with friction
- courtrigrad
- · Replies 6 ·
Calculating Stopping Distance of Car with 0.45 Frictiongrade
- Izekid
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Calculating Time on the Moon for a Pendulum Clock
- AdnamaLeigh
- · Replies 4 ·
Wave speed in a 9 cm diameter coffee cup sloshing at 1 step per second
- confusedbyphysics
- · Replies 1 ·
Linear Motion (I'm sure it is easy for all you majors out there)
- Woofuls
- · Replies 3 ·
Calculating Moment of Inertia for a Rolling Can of Soup
- Impathy
- · Replies 3 ·
Frictionless, rotating circular hoop
- courtrigrad
- · Replies 4 ·
Pulley system with two masses and applied force F
- amcavoy
- · Replies 9 ·
Change in internal energy for an isobaric process?
- erik-the-red
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Understanding Equilibrium of Forces in a Triangle
- drunkenfool
- · Replies 4 ·
Calculate Moment of Inertia for Clock Pendulum
- moo5003
- · Replies 3 ·
Solve the Mystery: Why is My Way Wrong?
- suspenc3
- · Replies 2 ·
Refrigerator magnitude Question
- courtrigrad
- · Replies 1 ·
Calculating Meeting Point and Time for Accelerating Vehicles
- Shehezaada
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Does Rotational Rigidity Affect Angular Velocity Consistency?
- 9danny
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How Does a Bullet Impact Affect the Angular Speed of a Rod?
- kp
- · Replies 13 ·
Projectile Motion: Escape Velocity and Altitude at 55%
- SoccaCrazy24
- · Replies 2 ·
How do I calculate heat transfer through a wall with multiple layers?
- kris24tf
- · Replies 4 ·
Why Can't I Use Torque = Ia for Calculating Pulley's Inertia?
- kp
- · Replies 1 ·
Finding height of image for a concave mirror
- chester89
- · Replies 1 ·
Understanding Tides: Earth's Spinning and its Impact
- kimpak
- · Replies 2 ·
Electron accelerated through potential
- brentd49
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What does the order of unity mean in l' = l + αa?
- Warr
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How do errors combine when adding, subtracting, multiplying or dividing?
- Pixter
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Gravitation person weight problem
- melodrameric
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How Does Ejecting a Particle Affect the Angular Momentum of a Rotating Rod?
- jalapenojam
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What Is the Bullet's Velocity Before It Hits the Rotating Rod?
- jalapenojam
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Finding period from spring-mass system oscillation distance
- Seiya
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How Far Does the Moon Fall Toward Earth in One Second?
- eunhye732
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How is force related to potential energy?
- kivilumi
- · Replies 8 ·
Pinball launch speed from spring on incline plane
- 404
- · Replies 7 ·
Calculating the number of moles of air
- Dooh
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Solve the Meal Costing Puzzle: Calculate Food Costs for 120000 Meals
- jacy
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Transverse Wave oscillator Problem
- Ginny Mac
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At what distance from the center of the earth does g equal 2.0 m/s^2?
- BluRain
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Physics Experiment Ideas for Intro Class
- jrd007
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Understanding Tangential vs. Radial Acceleration on Rotating Bodies in Physics
- 9danny
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How Loud is 20 dB Above Audibility?
- jakeowens
- · Replies 4 ·
Science Fair Physics Ideas - Win the Science Fair!
- Aspekt
- · Replies 1 ·
How Does Coupling a Second Wheel Affect Angular Momentum and Energy?
- jalapenojam
- · Replies 2 ·
Why does internal resistance occur?
- khizman
- · Replies 3 ·
Calculating Length of Strand of Gold in "Rumpelstiltskin"
- matiishere
- · Replies 2 ·