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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- riseofphoenix
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Skier at the top of a hill
- omc1
- · Replies 1 ·
Vector evaluation & Lorentz force 02
- Roodles01
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Why is weight positive if gravity is negative?
- PhizKid
- · Replies 1 ·
What is the Force Required to Move a Crate on an Incline Plane with Friction?
- dolpho
- · Replies 4 ·
Tensile stress with unequal forces
- juraj5
- · Replies 2 ·
How Is Power Calculated for Lifting Sewage in a Pumping Station?
- bdh2991
- · Replies 6 ·
What is the Speed of the Lowest Bead as the Upper Bead Passes Over the Peg?
- omc1
- · Replies 18 ·
Magnitude of electric field at a point
- Peewee
- · Replies 1 ·
Trying to find the equation of motion of a model
- Broseph
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What Is the Oscillation Period of a Pendulum Suspended by an Inclined Wall?
- squareroot
- · Replies 19 ·
Finding the diameter in the walls of a pipe (related to current)
- Parad0x88
- · Replies 1 ·
How Does Wave Motion Affect the Path of a Point on a Wave?
- bubakazouba
- · Replies 2 ·
How do I find the acceleration of gravity
- Vodkacannon
- · Replies 1 ·
Field inside a finite solenoid - At the ends and in the middle
- AGNuke
- · Replies 7 ·
Applied Force to a Sliding Frictionless Ramp
- Rook2012
- · Replies 2 ·
What takes more energy rolling a ball up a hill or carrying it up
- curiouschris
- · Replies 3 ·
Calculating Forces and Friction in a Moving Package
- guoruiwu
- · Replies 1 ·
Solving Pulley System Questions: Tensions, Weights, and F=ma
- _MNice_
- · Replies 1 ·
Formation of the Solar System (Astrophysics Homework Help)
- ostudy
- · Replies 1 ·
How Do You Calculate the Velocity of a Soccer Ball Relative to the Ground?
- oldspice1212
- · Replies 1 ·
What is the Potential Difference Across the 4.50-kΩ Resistor?
- Northbysouth
- · Replies 2 ·
Down an Incline with Spring: Finding Distance and Maximum Speed
- Albeaver89
- · Replies 1 ·
Solve Collision Questions: Cannonball Speed & Dog Mass
- rainy365days
- · Replies 3 ·
Find the Current After the Capacitors Have Lost 80% of Stored Energy
- Northbysouth
- · Replies 1 ·
Is There an Error in the r+-r- Expression?
- aaaa202
- · Replies 3 ·
A Woman Running Towards a Bus Which Pulls away
- Phonetic
- · Replies 1 ·
Solving for Density: Buoyant Force & Force of Gravity
- Avalanche
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A 1.2 kg block is pushed under water and held there. What is the buoyant force?
- kuhatelyn
- · Replies 2 ·
Velocity, Work, and Energy of a Falling Meteor
- RoosterCancer
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Two small beads having positive charges 3q and q are fixed
- richyw
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What is the final speed of the cork in a spring loaded cork gun?
- Albeaver89
- · Replies 2 ·
Showing that a near earth orbit is P = C(1 + 3h/2R_E)
- jeanbeanie
- · Replies 28 ·
What could T^2 be? Pendulum lab
- homing
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Mass of a suspended ball and a force
- JLPG
- · Replies 3 ·
Force of block pushed against wall
- uph0
- · Replies 2 ·
Work done when dragging a crate 15m at 37° angle
- Silverbolt
- · Replies 10 ·
1-dimensional non-conservative force that depends on position?
- Adoniram
- · Replies 9 ·
Statics Questions involving finding forces
- Kalookakoo
- · Replies 1 ·
What Is the Ball's Average Speed During the First 2.7 Seconds?
- oldspice1212
- · Replies 7 ·
What Is the Final Velocity of the Larger Ball After Collision?
- felipenavarro
- · Replies 5 ·
How Does Kinetic Friction Affect a Skier's Ascent Up a Hill?
- omc1
- · Replies 3 ·
Relation between Signal to Noise ratio and Logical Interference
- md.kamal1262
- · Replies 1 ·
Finding the Initial Velocity and Angle of a Cannon Ball Launched from a Cliff
- safat
- · Replies 6 ·
What is meant by no gas enters or leaves the cylinder ?
- hahaha158
- · Replies 17 ·
Calculating Swing Angle for Equal Kinetic Energy: Man vs Car
- omc1
- · Replies 13 ·
Calculating KE Gain with Velocity Vectors: Explained and Simplified
- phospho
- · Replies 4 ·
A force acting on a particle moving in the xy plane is given by
- AryRezvani
- · Replies 3 ·
An object under water has mass 100 kg. What is the buoyand force?
- kuhatelyn
- · Replies 2 ·
Calculating Volume of Water Displaced by 12 kg Wooden Block
- kuhatelyn
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Force Exerted by 20,000N Boulder in 0.4m^3 Tank
- kuhatelyn
- · Replies 6 ·
Muscles opperating with efficiency of 18%
- omc1
- · Replies 4 ·
How Do You Calculate Initial Velocity Components Given Angle and Distance?
- gsg822
- · Replies 7 ·
Projectile Motion - Finding theta
- tatterspwn
- · Replies 1 ·
Magnetic Field at the centre of Spiral
- AGNuke
- · Replies 6 ·
Find the entropy for the process
- chemman218
- · Replies 2 ·
Multiplication using dot product.
- AryRezvani
- · Replies 7 ·
Questions on phase space and CanonicalMicrocanonical ensembles
- thermodynam..
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Basic kinetic friction and mass quesion?
- nchin
- · Replies 2 ·
Find velocity of a moment before terminal velocity is reached?
- trivk96
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Mass hanging on a spring - find acceleration
- kchurchi
- · Replies 3 ·
How Do You Write the Wavefunction for Two Electrons in Quantum States?
- Beer-monster
- · Replies 9 ·
Cable tension force from applied force
- J3Di
- · Replies 3 ·
Elastic potential energy of vertical spring
- Vanessa22
- · Replies 2 ·
What is the tension in the string?
- risepj
- · Replies 2 ·
How Do You Solve 2D Equilibrium of a Rigid Body?
- azndoom
- · Replies 4 ·
How does the tension in a pulley system change with different masses?
- Saitama
- · Replies 4 ·
Underdamped harmonic oscillator with a sinusoidal driving force
- captainemeric
- · Replies 2 ·
Find Distance: Skydiver Jumping from 36000m in Stratosphere
- KunwarS
- · Replies 1 ·
Perpendicular Forces and Change in Momentum
- Jacob959
- · Replies 1 ·
How Far Will You Travel Before Hitting the Mosquito?
- PhysicsNoob76
- · Replies 2 ·
What is the total displacement of a delivery truck given its route and time?
- JackandJones
- · Replies 5 ·
How do you find delta X using Voy and Vox?
- Susands
- · Replies 2 ·
How far does the object travel horizontally? Two-Dimensional Motion
- eioz
- · Replies 3 ·
Circular motion under gravity; a car travelling on hills
- AJKing
- · Replies 2 ·
Difference Between Bound and Free charge
- rshalloo
- · Replies 1 ·
Calculating the Speedbump Radius to Stop a Car: A Homework Challenge
- DannyTatas
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Normal Force during centripetal acceleration
- prospectus
- · Replies 3 ·
Liquid oscillating in a U-tube problem
- RockenNS42
- · Replies 4 ·
Was My Approach to Solving the Physics Problem Correct?
- agent_509
- · Replies 2 ·
2 dimensional projectile motion
- christy77
- · Replies 3 ·
What is the Energy of a Photon Released in Atom Decay with a Change in Mass?
- Guidenable
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Ampere's Law and Magnetic Fields
- zzyzz
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How Do You Calculate the Flow Rate of Air Through the Trachea?
- Nellen2222
- · Replies 4 ·
2 people pulling on ropes or cables with a third person trying to equal out
- SherBear
- · Replies 2 ·
Physics Question involving a person pulling himself up
- CoolGod
- · Replies 5 ·
Gauss's Law: Finding Electric Field of Line of Charge
- david456103
- · Replies 3 ·
Solving for Tension in Rope: A & B Blocks, Theta=30°, us=.25
- SherBear
- · Replies 24 ·
What Is the Takeoff Angle for a 7.5m Long Jump?
- Nubcake
- · Replies 1 ·
Vectors as Paths with measuring degrees
- Ally385
- · Replies 2 ·
Why classical physics work in quantum mechanics
- Dammes
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Finding Velocity on a Position/Time Graph
- 5pirit
- · Replies 2 ·
How to Find the Magnetic Field Gradient from Four Parallel Wires?
- Niles
- · Replies 2 ·
How Does Newton's Third Law Apply to Motors and Elevators?
- philly20
- · Replies 1 ·
Help Needed: Solving Ramp Problem with Inclined Wedge and Block
- iMAGICIALoTV
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Determining initial velocity of an electron
- ZedCar
- · Replies 6 ·
Calculating Charge with Capacitors in Series
- PeachBanana
- · Replies 6 ·
Finding the magnitude of Torque
- nina123
- · Replies 2 ·
Solve for Pulling Force for Sled w/ Mass, Angle, & Coeff. of Friction
- nina123
- · Replies 4 ·
Moment of Forces about Point A help.
- EIGHTSIX7
- · Replies 1 ·