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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Energy removed converting 127 g steam at 153°C to ice at 0°C
- delecticious
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Linear momentum acting on a bullet
- suspenc3
- · Replies 1 ·
Heat required to melt 15% of a 3.90×10^5 ton iceberg
- delecticious
- · Replies 2 ·
Effective spring constant of a charged DNA molecule
- ccaramel
- · Replies 1 ·
Finding Momentum of 0.12 kg Ball Thrown Upward at 20 m/s
- missashley
- · Replies 1 ·
Elastic Collision: Find V1', V2' with M1, M2, V1, V2
- Ajwrighter
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What Is the Maximum Value of Static Friction Coefficient to Move a 10kg Object?
- pyroknife
- · Replies 7 ·
Impulse Question (Really Difficult)
- ll Source ll
- · Replies 2 ·
How Do I Calculate the Position of a Mass Pole System Under Applied Force?
- mabauti
- · Replies 3 ·
Finding friction deceleration using Newton's 2nd law
- PhysicsPhil
- · Replies 5 ·
Elastic Collision - but no Final Velocities given
- PhysicsPhil
- · Replies 11 ·
Energy lost in conversion of steam to ice
- ttk3
- · Replies 3 ·
Specific heat of a piece of metal dropped in water
- cyclonefb3
- · Replies 5 ·
A solid cylinder has a mass of
- bww
- · Replies 2 ·
How Long Will It Take for Ice to Melt in a Styrofoam Cooler?
- Sucks@Physics
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What is the formula for force on a falling rod as it tips past vertical?
- kataya
- · Replies 8 ·
How Do You Calculate the Change in Focal Length for a Human Eye Lens?
- Ryo124
- · Replies 2 ·
Heat required to melt an iceberg
- ttk3
- · Replies 3 ·
Heat equilibrium between two different rods
- Ojizo88
- · Replies 7 ·
Internal Work of a Ball Shot Through a Sand Bag
- gamarrapaul
- · Replies 4 ·
Solving Pressure Problem in Experiment: What is the Force?
- jamesyboy1990
- · Replies 1 ·
Two Pendula on 70cm Strings Collision Angle
- Sean77771
- · Replies 1 ·
Why does styrofoam repel when you touch a charged balloon?
- shawshank
- · Replies 8 ·
The smallest unit of electric charge is what?
- pinkyjoshi65
- · Replies 1 ·
Human Eye Optics - Answers Needed
- Ryo124
- · Replies 3 ·
Conceptual Q - Rolling Resistance, Angular + Linear motion -const. acceleration
- vasra
- · Replies 1 ·
How Do You Calculate the Total Energy of a Rolling Sphere?
- Jtappan
- · Replies 4 ·
Work Energy Theorem: Delta K Calculation for Particle Moving in x Direction
- vak3
- · Replies 1 ·
How Does Rotational Motion Affect a Cube and Pulley System?
- Superfluous
- · Replies 1 ·
Where does lunar gravity equal Earth's gravity between Earth and Moon?
- iamanoob
- · Replies 3 ·
Bernoulli/Pascal Tarpaulin Problem
- Romanian
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Acceleration of two blocks on a pulley with mass 1/3M and radius R
- kashhustler
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Conservation of Momentum and Inelastic Collisions
- dominus96
- · Replies 13 ·
Hot air balloon and champagne cork projectile motion
- baseketballr09
- · Replies 3 ·
How Far Can the Painter Walk Without Tipping the Plank?
- Jtappan
- · Replies 5 ·
Work, Energy and Power (Work Problem)
- matadorqk
- · Replies 9 ·
Ratios of Initial to Final Energy/Momentum/Velocity
- Jtappan
- · Replies 1 ·
What force must be applied to lift the load?
- Jtappan
- · Replies 1 ·
How High Can a Projectile Go When Launched at 10 km/s?
- alexwaylo2008
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Word force and friction problem
- pyroknife
- · Replies 3 ·
Balancing the Forces on a Steel Beam Construction
- dals2002
- · Replies 5 ·
Questions regarding conservation of energy with heat
- VanKwisH
- · Replies 8 ·
Minimum force perpendicular to 35° incline to prevent sliding
- crcowboyfan
- · Replies 9 ·
Spinning Object on Flat Surface
- domoarigato
- · Replies 2 ·
Red light wavelength 560 nm passing from air into glass
- Ry122
- · Replies 2 ·
What Angle Should a Projectile Be Launched to Reach Specific Distances?
- clipperdude21
- · Replies 4 ·
Conceptual problem about two blocks released from a compressed string
- KatieLynn
- · Replies 1 ·
I have Q's from my Honors Physics
- davesubaru
- · Replies 6 ·
How Does Displacement Affect Momentum in a Frictionless Spring System?
- dm66048
- · Replies 6 ·
Does Distance Affect Angular Velocity and Tangential Velocity on Earth?
- Eternalmetal
- · Replies 4 ·
Diagram for reflection and refraction with two wave sources
- grade11
- · Replies 9 ·
At what velocity does the stone impact? (Link to picture included)
- mitochondria3
- · Replies 4 ·
Finding tension in cables holding a 775 N sign at 30°
- liz155
- · Replies 6 ·
Period of oscillation for a mass on a spring
- andycl
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Angular Momentum of a sanding disk
- Destrio
- · Replies 6 ·
Potential Difference for X-Ray Emission
- steven10137
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What formulas can be used to calculate the mass of Jupiter?
- Eternalmetal
- · Replies 5 ·
Car's velocity after being hit by a force
- KatieLynn
- · Replies 7 ·
Calculating Total Force on Diving Bell's Port
- diva8789
- · Replies 5 ·
Steel Block Rotating On A Steel Table
- TonkaQD4
- · Replies 1 ·
Hanging sign, torque and pivot points
- Sean77771
- · Replies 1 ·
How Much Kinetic Energy Does the Target Retain After Collision?
- wchvball13
- · Replies 3 ·
Why emit alphas, not other nucleon groups?
- catkin
- · Replies 3 ·
Maximum deflection angle for 4:1 mass collision using zero momentum frame
- villiami
- · Replies 1 ·
Atwood machine - find kinetic energy
- NewJersey
- · Replies 6 ·
Why Is It Harder to Rotate A Rod with a Mass in the Center?
- sagebum
- · Replies 3 ·
Solving Space Junk Momentum Problem
- quickclick330
- · Replies 2 ·
What Forces Are Needed to Maintain Equilibrium on a Frictionless Surface?
- ibriggs
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What does force as a multiple of weight mean?
- Brin
- · Replies 8 ·
Handball trajectory at 24 degrees to a wall 4.2m away
- baseketballr09
- · Replies 3 ·
Calculating Beat Frequency of 3 Frequencies
- tomcs
- · Replies 2 ·
Just some conceptual stuff about car crashes
- sadakaa
- · Replies 3 ·
Current, Resistivity, and strange questions
- MightyMergz
- · Replies 1 ·
Gymnast Equilibrium: Tension Calc.
- steven10137
- · Replies 2 ·
Average force in a collision problem
- KatieLynn
- · Replies 1 ·
Rate of spring compession from block on incline
- december7
- · Replies 5 ·
Archimedes Principle: Calculate Outer & Inner Radii
- grapeape
- · Replies 2 ·
Solving the Mountain Climber Problem: Tension & Contact Force
- Jtappan
- · Replies 3 ·
Force Equilibrium of house painter
- Jtappan
- · Replies 3 ·
Ball dropped from building - find speed and kinetic energy
- NewJersey
- · Replies 5 ·
Calculating Tension in a 2 Mass System
- ibriggs
- · Replies 2 ·
Does Throwing Iron Overboard or Melting Ice Affect Water Levels?
- Saska
- · Replies 7 ·
Double Pressure: What are the Effects on Temperature & Volume?
- JerLynn
- · Replies 5 ·
Do Heated Objects Affect Time and Temperature Perceptions?
- sheri1987
- · Replies 1 ·
Calculating Torque and Work: Flywheel Mass, Radius, and Time Interval
- Jtappan
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How much ice melts when a 50 kg block slides 21.37 m and stops?
- sheri1987
- · Replies 2 ·
Adding resistor and capacitor in parallel
- obsolete
- · Replies 4 ·
How far can a bird fly on 4g of fat at 10.7 m/s?
- jaded18
- · Replies 12 ·
What Is the Final Velocity of a Cart Pushed with a Force at an Angle?
- NewJersey
- · Replies 2 ·
Calculating Work Done by Forces on a Moving Object
- alex7298
- · Replies 2 ·
Why Does a Block Topple on a Moving Cart?
- RedAlert
- · Replies 3 ·
How Much Work and Power Does an Elevator Motor Need?
- NewJersey
- · Replies 2 ·
Spring constant, should be easy?
- Th3Proj3ct
- · Replies 3 ·
How to describe whiplash in physics terms
- oconn1
- · Replies 1 ·
Entropy change of lake when aluminum bar reaches thermal equilibrium
- jaded18
- · Replies 1 ·
How Do You Calculate Final Velocity with Given Force and Time?
- KatieLynn
- · Replies 3 ·
Print ViewEquipartition Theorem and Microscopic Motion
- jaded18
- · Replies 3 ·
Gravitational Force on satellite orbits
- temaire
- · Replies 1 ·
Solving Transfer of Energy: Find Height Dropped for Bowling Ball
- Renzokuken
- · Replies 3 ·
Conservation of Mechanical Energy in a ball of clay
- octahedron
- · Replies 4 ·