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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Proper use of inequality symbols in equations to do with circular motion
- Ebby
- · Replies 2 ·
Q： Rankine cycle pump work Integration
- tracker890 Source h
- · Replies 2 ·
How to find the center of mass and unknown weight
- JakeD23
- · Replies 2 ·
Density of Flow Along a Tube Under the Action of Advancing Piston
- erobz
- · Replies 11 ·
How to calculate the wind speeds produced by an ionic thruster
- Jon Doe
- · Replies 7 ·
Pressure in fluids and Archimedes' principle
- MatinSAR
- · Replies 2 ·
Vertical projectile motion with quadratic drag (sign convention)
- f3sicA_A
- · Replies 6 ·
Find velocities when a mass leaves a system of a rod with two masses
- Jeavenasti
- · Replies 10 ·
Calculate the volume integral over a cone of height h and radius r
- physicss
- · Replies 28 ·
Electromagnetism Help: Get Unstuck Now!
- butterflycandy
- · Replies 5 ·
Location of point mass based on graphs
- songoku
- · Replies 3 ·
Correct statement about thermodynamics process
- songoku
- · Replies 5 ·
Image distance of a Keplerian telescope
- guv
- · Replies 7 ·
Microwave standing wave calculations (max/min Intensity, Wavelength)
- nav888
- · Replies 51 ·
Why path difference calculation is off by factor of 2 with multipath reflection
- aidandv
- · Replies 10 ·
What is Velocity.length_squared?
- Amsalja
- · Replies 32 ·
How to calculate the wind force acting on a water drop?
- Lotto
- · Replies 39 ·
Calculating Average Acceleration of a Particle Moving in a Circle
- Slimy0233
- · Replies 15 ·
How do we obtain an ampere-hour rating given voltage and watt-hour?
- zenterix
- · Replies 4 ·
Two charged beads with a third bead in equilibrium
- putongren
- · Replies 32 ·
Water wheel and hydroelectric power question
- Pinon1977
- · Replies 12 ·
Electric field direction at point 4 in a mechanical battery circuit
- Muhammad Usman
- · Replies 7 ·
Calculating Tension in a System of Trolleys
- Say17
- · Replies 18 ·
Speed of a star in Special Relativity
- RafaPhysics
- · Replies 6 ·
Application of Newton's second law to a horizontal pulley
- ElectroMaster88
- · Replies 2 ·
Pressure difference between the top and bottom surfaces of this cube
- Say17
- · Replies 3 ·
Signs of work done and delta K.E.
- Ebby
- · Replies 2 ·
Velocity vs Speed (What's more relevant here?)
- Slimy0233
- · Replies 4 ·
Wind drag problem with a ball hanging on a rope
- crememars
- · Replies 6 ·
Eddy current damping of a pendulum near an aluminium block
- qumbo19
- · Replies 9 ·
[Kinematics] Calculating the maximum height reached by the ball
- Slimy0233
- · Replies 4 ·
Finding amplitude of disk and coil spring motion
- Lil123
- · Replies 7 ·
How much time do I have to catch a coin?
- Lotto
- · Replies 2 ·
Find Universal Gravitational Constant w/ Torsion Balance Timelapse Recording
- guyvsdcsniper
- · Replies 8 ·
Calculate Distance Traveled: Instantaneous vs. Average Velocity
- Slimy0233
- · Replies 5 ·
Interference of 2 spherical waves
- mariamiguel1921
- · Replies 1 ·
Isobaric expansion and pressure-volume coefficient from V = cT² - bpT
- member 731016
- · Replies 4 ·
Finding gauge pressure for gas inside light bulb as it heats up
- member 731016
- · Replies 6 ·
Combined Rotation and Translation of a Rectangular Plate
- xkcda
- · Replies 9 ·
Why does ##Sigma T. x=0## hold for tension
- Kashmir
- · Replies 1 ·
Finding acceleration of the pulley block system
- Kashmir
- · Replies 23 ·
How Can I Measure Kinetic Energy in a Non-Inertial Reference Frame?
- xkcda
- · Replies 4 ·
Conventional current definition and a variation on that definition
- member 731016
- · Replies 4 ·
Estimating power output from impulse when a runner leaves the blocks
- suedi
- · Replies 14 ·
Coplanar system or Convergant forces?
- Kris_At_N
- · Replies 13 ·
Determining the interval between two F1 cars
- ilasus
- · Replies 30 ·
How Do You Calculate Capacitance in a DC Circuit with a Fully Charged Capacitor?
- Lambda96
- · Replies 3 ·
Why Won't a Disk Rotate on a Frictionless Bearing?
- Lil123
- · Replies 5 ·
Why multiply specific gravity by unit weight of water in hydraulics
- drdyke
- · Replies 11 ·
Physical Pendulum - Theoretical equation
- Physics Curiosity
- · Replies 15 ·
Fluid Dynamics - Using the Manometer Equation
- dylanwalt
- · Replies 6 ·
Average Speed Question for a Train that Accelerates and then Decelerates
- vryC0nfused
- · Replies 20 ·
Two masses accelerate towards each other
- Janek
- · Replies 2 ·
Find Lowest Speed to Yank Tablecloth - F/dt=0
- meowts
- · Replies 12 ·
Net torque on a cylinder by multiple applied forces
- Mohmmad Maaitah
- · Replies 13 ·
IB Extended Essay research project on relativity
- Juan2g19
- · Replies 13 ·
Find spring constant k using an electrical circuit
- ananonanunes
- · Replies 10 ·
Potential inside a rectangular pipe
- better
- · Replies 2 ·
Terminal Velocity of a Falling Parachutist
- Saptarshi Sarkar
- · Replies 5 ·
Finding the radial function for hydrogen atom
- physicss
- · Replies 1 ·
Laplace operator in spherical coordinates
- physicss
- · Replies 1 ·
Why Define Internal Energy Using Average Mechanical Energy?
- member 731016
- · Replies 10 ·
How to Simplify the Laplace Equation in Spherical Coordinates?
- physicss
- · Replies 2 ·
An electric circuit problem involving 5 current variables
- vcsharp2003
- · Replies 28 ·
Are suvat equations valid in 2 dimensional motion for constant acceleration?
- vcsharp2003
- · Replies 5 ·
Force needed for blood vessel to withstand pressure
- Nova_Chr0n0
- · Replies 6 ·
Can a harmonic be louder than the fundamental frequency?
- Jon.G
- · Replies 9 ·
Direct proportionality equations
- member 731016
- · Replies 4 ·
Moving Source, Observer at Rest, derivation for Doppler effect
- member 731016
- · Replies 2 ·
Deriving density formulae from first principles
- member 731016
- · Replies 17 ·
Finding ground velocity from air velocity and wind using vector diagram
- susan_khan
- · Replies 10 ·
Find equivalent resistance R in the circuit
- valhakla
- · Replies 10 ·
Chain rule and division by zero
- jain_arham_hsr
- · Replies 12 ·
Find power needed to fly this airplane using momentum considerations
- mmfiizik
- · Replies 3 ·
Torque on a pulley (2 masses connected by a string hanging from 2 pulleys)
- Mohmmad Maaitah
- · Replies 17 ·
Loop problem with skier on ramp going into a loop-the-loop
- PainlessPeach
- · Replies 13 ·
Why does water level difference change between connected tanks?
- pranta
- · Replies 26 ·
Solving Elastic Collision of Two Balls: Theory & Solutions
- mmfiizik
- · Replies 15 ·
Find the equivalent resistance between two points in terms of R
- valhakla
- · Replies 7 ·
Electric heat generation from parallel rods carrying current in an oil bath
- jackkk_gatz
- · Replies 11 ·
Special Relativity: What are the events in the question?
- AronYstad
- · Replies 29 ·
How did the textbook get this answer? (satellite motion question)
- httplol
- · Replies 2 ·
Evidence that the Earth rotates in Space
- IvanDkiwi
- · Replies 5 ·
Uncertainty in Newton's law of cooling
- sunmoonlight
- · Replies 3 ·
Doppler effect derivation for moving observer and stationary source
- member 731016
- · Replies 7 ·
Optimum Battery (and Wire) to Power 10x Mini 1.5V Bulbs in Parallel?
- Jingoo
- · Replies 6 ·
Why is multiplying by a unit conversion ratio the same as multiplying by 1?
- member 731016
- · Replies 16 ·
Does a Bent Wire Affect Induction Calculations?
- Lambda96
- · Replies 7 ·
Mass-energy conservation in nuclear reactions
- voreryar
- · Replies 3 ·
Electric flux through a hemisphere due to these charge configurations
- gracy
- · Replies 51 ·
What does this expression involving Partial Derivatives mean?
- physicss
- · Replies 5 ·
Find unknown wind velocity given airlplane's speed
- Gardunf070
- · Replies 3 ·
Calculating torque about a point with given forces
- Nova_Chr0n0
- · Replies 5 ·
Finding intervals where oscillator x(t)=0.2cos(12πt) accelerates
- MatinSAR
- · Replies 5 ·
Finding position vectors in a mechanics problem
- flamebane
- · Replies 5 ·
Question on Time-Independent Perturbation Theory
- cwill53
- · Replies 3 ·
What does tolerance mean in air density and Bernoulli's equation problems?
- member 731016
- · Replies 4 ·
Newton's second law graph giving negative mass for hanging weight
- member 731016
- · Replies 44 ·
Magnetic field at origin due to infinite wires and semicircular turn
- PhysicsRock
- · Replies 3 ·
Circular Motion: Tangential and Normal Acceleration
- Heexit
- · Replies 5 ·