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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Why is my calculated satellite speed 10^11 times too large?
- ThePiGeek314
- · Replies 2 ·
How does a hydraulic machine work?
- Sarahborg
- · Replies 1 ·
Is the Hydrogen Atom Stable for a Potential Behaving as -1/rs?
- Kelly Lin
- · Replies 1 ·
How to determine if a lens image is real or virtual from magnification
- izMuted
- · Replies 5 ·
Magnification, when is it negative?
- izMuted
- · Replies 2 ·
Failure of simultaneity at a distance
- Karol
- · Replies 6 ·
Find velocity of boat as function of the time
- ays
- · Replies 3 ·
Momentum of W Bosons After Collision in Particle Physics Lab
- David0709
- · Replies 3 ·
Measuring the resistance value of some bulbs.
- Asmaa Mohammad
- · Replies 9 ·
Solving for Magnitude of Sirius (-1.5) Through Triple Window
- Jussi Lundahl
- · Replies 7 ·
Converting kJ/(kg·°C) to Btu/(lbm·°F) using dimensional analysis
- AnotherParadox
- · Replies 9 ·
Motional EMF -- problem 7.7 in Griffith
- Pushoam
- · Replies 2 ·
Thermodynamic assembly - Statistical Thermodynamics
- PePaPu
- · Replies 1 ·
What Is the Correct Way to Calculate Average Force in a Jumping Scenario?
- sunnyday
- · Replies 4 ·
How High Will the Ball Bounce on an Inclined Plane?
- Faefnir
- · Replies 3 ·
This long uncertainty viscosity problem where I need to get the error
- psstudent
- · Replies 22 ·
Calculating the number of turns of a solenoid.
- Asmaa Mohammad
- · Replies 8 ·
What is the Resistance of a Loop in the Presence of Motional EMF and Gravity?
- Pushoam
- · Replies 9 ·
Suppose the position of an object is given by a vector
- sunnyday
- · Replies 2 ·
How would you solve the following cuircut problem?
- Wendy Kenshal
- · Replies 1 ·
Fluid Dynamics - Water Storage Tank
- AutumnBeds
- · Replies 1 ·
How to find the resultant force in a T tube section
- lucasLima
- · Replies 7 ·
Moment of inertia of a cylinder?
- MoAli
- · Replies 3 ·
Electric potential related to electric field question
- David0709
- · Replies 1 ·
Finding the resultant of three vectors
- donaldparida
- · Replies 20 ·
Electric force and field from two point charges in 3D
- Sofia Matthews
- · Replies 2 ·
Vibration of a cantilever beam problem
- Feodalherren
- · Replies 2 ·
Pulse echo technique to find the distance of the Moon
- Javeria
- · Replies 19 ·
Multiplying epsilon naught by a length quantity
- AdrianMachin
- · Replies 1 ·
The magnetic flux and the induce emf in the dynamo.
- Asmaa Mohammad
- · Replies 8 ·
Infinite series of parallel resistors between two points
- Vibhor
- · Replies 10 ·
Belt drive: calculating pull, torque, power and speed for loaded conveyor
- propsboy
- · Replies 4 ·
What is initial slopes of the plot Z versus P ?
- Buffu
- · Replies 3 ·
Determining Electric Potential with Charge Density
- an_single_egg
- · Replies 18 ·
Electric potential between two concentric spherical shells
- AdrianMachin
- · Replies 1 ·
Finding upward force to keep a 90cm pivoted board level
- Sarahborg
- · Replies 9 ·
Physics 12: Acceleration of Proton in B-Field
- marysaf
- · Replies 3 ·
Fluid Flow rate and fluid dynamics
- LiamB
- · Replies 15 ·
Voltmeter Reading for Ohm's Law Problem
- gex
- · Replies 2 ·
Lead shot dropped in tube: gravitational potential energy and temperature rise
- BTEC Michio Kaku
- · Replies 2 ·
Finding magnetic flux through a coil with varying distance
- BREAD
- · Replies 1 ·
Acceleration in Harmonic Motion
- ciao_potter
- · Replies 1 ·
Gauss's Law to find E with non-uniform charge distribution
- hegtor
- · Replies 6 ·
Spring deflection load calculation for excavator
- robax25
- · Replies 5 ·
Charged insulator in contact with conductor
- Vibhor
- · Replies 3 ·
How Does Power Dissipation in One Resistor Relate to Total Power from Batteries?
- Vibhor
- · Replies 1 ·
Relativity With velocity of objects moving in different fram
- David0709
- · Replies 1 ·
Tension in two ropes attached to a beam
- thetasigma
- · Replies 8 ·
Plot 3D graph of electric potential of a charged particle
- AdrianMachin
- · Replies 1 ·
What is the deceleration of a snowboarder going up a 5.0° slope?
- ThePiGeek314
- · Replies 2 ·
Heat of Evaporation: Melting Ice to Boil Nitrogen
- HaoPhysics
- · Replies 3 ·
At what time will a star be seen from a place ?
- Vibhor
- · Replies 6 ·
Reaction force be 0 at top of circular path swing?
- opne
- · Replies 3 ·
Optics: Half Lens in the Air, Half Lens in Water.
- Steveyudea
- · Replies 1 ·
Is an Avocado Shaped Like an Airfoil?
- airvocados2122894
- · Replies 9 ·
Finding resistance and its change from a V-I graph
- Raymond
- · Replies 12 ·
What is the formula to find inertia with velocity and mass?
- Megan1000
- · Replies 6 ·
Calculating work on an electron on an equipotential surface
- AdrianMachin
- · Replies 11 ·
Electromagnetism - The distance from point a to point b
- Jon Blind
- · Replies 15 ·
How Does Mass Increase as Electrons Approach Light Speed in a Synchrotron?
- Karol
- · Replies 19 ·
Critical Velocity in a roller coaster cart
- Cactus
- · Replies 1 ·
Terminal velocity of a raindrop
- Buffu
- · Replies 12 ·
Velocity of a plane when you hear a sonic boom?
- KoontzyN
- · Replies 1 ·
Mechanical Principles Dynamics of Rotating Systems
- mally baringon
- · Replies 2 ·
Find the Maximum Height of an Inverted Garbage Can Suspended by a Geyser
- Buffu
- · Replies 5 ·
[Mechanics] Friction decelerating a helicopter rotor assembly
- DanRow93
- · Replies 1 ·
Force due changing magnetic field
- WubbaLubba Dubdub
- · Replies 13 ·
Is friction kinetic or static when force is applied perpendicular to motion?
- Andy Salter
- · Replies 1 ·
Calculating the velocity of a molecule
- Victoire
- · Replies 4 ·
Distance between a person and a thunderstorm
- MillieB
- · Replies 6 ·
Calculating force between capactor plates using virtual work
- Pushoam
- · Replies 27 ·
Finding the Cost for Operating Coffee Machines
- Catchingupquickly
- · Replies 1 ·
Finding the Mass of a Pole Vault Athlete
- Bunny-chan
- · Replies 7 ·
Centre of gravity, moment of inertia and radius of gyration
- DevonZA
- · Replies 10 ·
Potential gravitational energy coordinate axis
- Bunny-chan
- · Replies 6 ·
Relationship between HHV and LHV of gaseous propane
- MickeyBlue
- · Replies 2 ·
Finding the absolute error for equation of total resistance
- AdrianMachin
- · Replies 4 ·
Power of resistors in parallel vs series circuit
- crostud123
- · Replies 7 ·
How do you derive the mirror equation with a convex mirror?
- Sciencelover91
- · Replies 1 ·
Calculating Stopping Distance for Car Traveling at 3.0v
- Kevin Mason
- · Replies 1 ·
Linear expansion by heat for an object
- ehf
- · Replies 11 ·
Impact of a elastic string on pendulum
- pschilk
- · Replies 1 ·
How Does Pressure Affect the Buoyancy of a Cylinder?
- ehf
- · Replies 2 ·
How Do You Determine the Direction of Friction on an Inclined Plane?
- Alex126
- · Replies 3 ·
Final charge on capacitor for an RC circuit
- unseeingdog
- · Replies 11 ·
Determine torque required to accelerate the flywheel
- em3
- · Replies 2 ·
Calculating electric potential with a uniform elect field
- Nick Jarvis
- · Replies 9 ·
Special relativity-analogy of rotation
- Karol
- · Replies 8 ·
Relative motion of two observers
- Rahulrj
- · Replies 22 ·
Resolving the electric force into x y components?
- Engr.abshir
- · Replies 4 ·
What is the unit of angular velocity for a moving child on a merry-go-round?
- ciao_potter
- · Replies 3 ·
What is the power of a car engine?
- greypilgrim
- · Replies 6 ·
How can I solve for buoyancy in a cylinder using the given equations?
- ehf
- · Replies 6 ·
The physical meaning of a slope
- ddddd28
- · Replies 15 ·
Change in electrostatic energy on two spheres
- Marcus95
- · Replies 11 ·
Proving C12=C21: General Capacitance
- Pushoam
- · Replies 1 ·
Mass-spring-damper system "shock absorber"
- vaitus
- · Replies 2 ·
Polarization between 3 sheets intensity
- Taylor_1989
- · Replies 2 ·
Graphs of y(x,t)=A Sin(kx - wt + φ) are shown below
- J6204
- · Replies 26 ·
Conservation of the string length in pulleys
- Bunny-chan
- · Replies 15 ·