Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Understanding Pascal's Law: Why is Force Greater in One Cylinder Than the Other?
- brotherbobby
- · Replies 1 ·
Why Does the Friction Force Not Match in the Two Block Problem?
- Hamiltonian
- · Replies 15 ·
Calculate ##\vec{E}## of a single charge at a certain distance from it
- mcastillo356
- · Replies 6 ·
Two pulleys lifting a mass in parallel
- Hamiltonian
- · Replies 13 ·
Can you shoot at π/4 angle if initial vertical velocity is zero?
- fer Mnaj
- · Replies 7 ·
Thermal energy/ heat in a parallel connection
- AnneX
- · Replies 9 ·
Flow rate of a pipe - calculation
- AnneX
- · Replies 10 ·
Calculation with this electric circuit (battery and resistors)
- AnneX
- · Replies 22 ·
Spring-mass system in circular motion has a maximum angular speed?
- Bruce_Pipi121
- · Replies 9 ·
Block on a wedge connected to pulleys
- Hamiltonian
- · Replies 15 ·
How Does Balloon Volume Change During Ocean Descents?
- guv
- · Replies 3 ·
When is the rate of change of Kinetic Energy maximum here?
- rockinwhiz
- · Replies 19 ·
Lenz law how to find dA/dT and O?
- Nicolas01
- · Replies 4 ·
How Does Friction Affect System Movement?
- Nexus99
- · Replies 12 ·
Trajectory of a mass element in a string overhanging a pulley
- burian
- · Replies 19 ·
Total Potential of a Ring at Point P
- Hamiltonian
- · Replies 13 ·
How far from the mirror should the light source be positioned?
- A13235378
- · Replies 6 ·
Current in a current-carrying loop experiencing no torque
- SilversGodot
- · Replies 1 ·
How Does a Semi-Permeable Membrane Affect Entropy in a Two-Chamber Gas System?
- LCSphysicist
- · Replies 10 ·
Why Does Kinetic Energy Increase More with Higher Initial Velocities?
- digalumps
- · Replies 38 ·
Changing of frequencies in the Doppler effect
- LCSphysicist
- · Replies 3 ·
Ratio of acceleration of two solid cylinders released on two inclined planes
- songoku
- · Replies 22 ·
Field of a Trianglular Solenoid
- Taulant Sholla
- · Replies 4 ·
Path/time function of a freesbie (the ride at amusement parks)
- Kakainsu
- · Replies 40 ·
Finding the current in Field winding
- Physicslearner500039
- · Replies 2 ·
Calculating Boiling Point of a Solution: A Joke Problem for Extra Credit
- docnet
- · Replies 3 ·
How many significant figures does 20 have in context?
- maxelcat
- · Replies 19 ·
Calculating the Force and Torque on a current loop
- Physicslearner500039
- · Replies 3 ·
Normalisation constants with ladder operators
- etotheipi
- · Replies 10 ·
Spring constant matrix and normal modes (4 springs and 3 masses)
- LCSphysicist
- · Replies 2 ·
Angular momentum: Grooved cone with a mass sliding down the groove
- madafo3435
- · Replies 4 ·
Can Tension in a Whirling Rope be Modeled as a Centrifugal Force?
- Hamiltonian
- · Replies 8 ·
Choosing proper coordinates in a complex 2 pulley system
- baseballfan_ny
- · Replies 6 ·
Estimating partition function from a graph of Boltzmann factors
- LCSphysicist
- · Replies 1 ·
Position and Momentum probability for +x direction
- tanaygupta2000
- · Replies 14 ·
Can mv^2 /2 + mu^2 / 2 + kq^2 / L = kq^2 /X? Find Out!
- A13235378
- · Replies 9 ·
Equivalent resistance and Thevenin equivalent of a resistor network
- stiwi_xyz
- · Replies 24 ·
What are the other forces acting on ##dm## in addition to gravity?
- Vivek98phyboy
- · Replies 1 ·
Direction of acceleration of a projectile with drag force
- baseballfan_ny
- · Replies 6 ·
Two blocks on a third block which is split into two ramps
- burian
- · Replies 8 ·
Understanding Motion and Collision in the Absence of Gravity
- Nexus99
- · Replies 3 ·
Bowling ball thrown with no spin finding velocity when slipping stops
- enthusiast
- · Replies 8 ·
Easy interference problem regarding Newton's rings
- LCSphysicist
- · Replies 4 ·
How to Grow a Sustainable Garden""Growing a Sustainable Garden: Tips & Tricks
- ambarish
- · Replies 1 ·
What is the derivation for the probability of energy in quantum mechanics?
- etotheipi
- · Replies 8 ·
Correct statement about error and uncertainty
- songoku
- · Replies 2 ·
Simple harmonic motion homework
- misterpicachu
- · Replies 7 ·
Why does a 15.0N force become 7.5N in component form?
- Elevenses
- · Replies 2 ·
Falling Rain Drop (Variable Mass)
- Potatochip911
- · Replies 16 ·
Gear Rotation puzzle is confusing 50:10 GR but 6 rotations
- sshanker
- · Replies 20 ·
Sketch a qualitatively accurate graph of the entropy of a substance
- LCSphysicist
- · Replies 1 ·
Masses on triangular trolley with different incline angles
- Nexus99
- · Replies 15 ·
Why does a shaken soda bottle spray liquid and gas?
- aspodkfpo
- · Replies 12 ·
Two possible directions for second displacement vector 40° from west
- mcastillo356
- · Replies 4 ·
Why is the downward force on 1kg in a force pulley system 60N?
- aspodkfpo
- · Replies 5 ·
The Effect of Increasing the Size of a Solid on Its Entropy
- LCSphysicist
- · Replies 1 ·
Why does a spring mass have zero vertical acceleration at the highest point?
- guv
- · Replies 98 ·
How do spikes reduce slipping in running?
- aspodkfpo
- · Replies 7 ·
Do rollers reduce friction and how does friction act on a moving car?
- aspodkfpo
- · Replies 7 ·
What Is the Opposing Resistance for a 14ohm and 10ohm Circuit?
- Froskersss
- · Replies 5 ·
A skier goes down a slope -- Ignoring friction, calculate the acceleration
- mcastillo356
- · Replies 6 ·
Doppler radar measurement by an aircraft
- LCSphysicist
- · Replies 4 ·
Moment of inertia, center of mass and vincular reaction of a rod
- Nexus99
- · Replies 16 ·
Verifying Coordinate System for Electric and Magnetic Forces
- mcastillo356
- · Replies 4 ·
Total energy of the normal mode on a string
- LCSphysicist
- · Replies 3 ·
Pulling a tablecloth from under a glass
- Leo Liu
- · Replies 12 ·
I want to learn about basic and advanced angular momentum
- A13235378
- · Replies 2 ·
Hydrostatic pressure of liquid in a cart on an inclined ramp
- A13235378
- · Replies 13 ·
Variable friction on an inclined plane and maximum velocity
- rockinwhiz
- · Replies 33 ·
What Is the Frequency of Small Oscillations for a Pivoted Rod with Two Springs?
- madafo3435
- · Replies 19 ·
Angular acceleration calculation
- robax25
- · Replies 3 ·
Is the Time to Reach Earth's Center Correct?
- tanaygupta2000
- · Replies 5 ·
What size flywheel do I need to produce 200kg torque or resist a force of 200kg?
- flywheel
- · Replies 1 ·
Moment of inertia of two coaxial disks
- Nexus99
- · Replies 8 ·
Momentum Problem -- Bullet fired into a block of wood
- Petext
- · Replies 2 ·
Normal force acting on a block on an accelerating wedge
- Leo Liu
- · Replies 12 ·
How to Become a Better Cook""Becoming a Master Chef: Tips for Better Cooking
- poodle123
- · Replies 3 ·
How Do Kinetic and Potential Energy Differ in Physics?
- girlwhoneedsmathhelp
- · Replies 3 ·
When Will the Car Overtake the Truck?
- anonymous99999
- · Replies 2 ·
The center of mass of a semicircular arc of non-negligible width
- Hamza M khan
- · Replies 3 ·
Charge redistribution when dielectric is inserted after battery is disconnected
- Kaushik
- · Replies 3 ·
Why does tangential acceleration differ in energy vs. force methods?
- Vivek98phyboy
- · Replies 7 ·
Tilting the plates of a parallel plate capacitor (and other changes)
- guv
- · Replies 17 ·
Barometric formula with constant and varying temperature
- cwill53
- · Replies 19 ·
A block on an accelerating wedge
- Leo Liu
- · Replies 4 ·
Finding the excess electrons per lead atom
- Physicslearner500039
- · Replies 2 ·
Solving Waves on a Metal Rod with kx + Φ
- LCSphysicist
- · Replies 3 ·
Degrees of freedom of a water molecule
- LCSphysicist
- · Replies 8 ·
Can a second transverse wave pulse overtake the first on a string?
- Abdullah Almosalami
- · Replies 2 ·
What exactly is pulling the man up/down in rocket?
- Benjamin_harsh
- · Replies 5 ·
Length contraction and Time dilation for LIGHT?
- Stephen Bulking
- · Replies 8 ·
Did I Calculate the Speed of a Comet Correctly?
- Albertgauss
- · Replies 6 ·
Calculate the New Velocity and the Velocity of a Pendulum Mass
- Justinboln
- · Replies 1 ·
Fundamental frequencies in a violin string.
- LCSphysicist
- · Replies 3 ·
Clausius clapeyron and heat capacity
- B4cklfip
- · Replies 1 ·
Rigid body sliding without overturning
- gonza178
- · Replies 17 ·
Why does moving a charge between grounded plates not change induced charge?
- Jacob White
- · Replies 9 ·
Friction factor from Reynolds number in pipe flow
- sci0x
- · Replies 7 ·
Change in a rocket's kinetic energy
- Miraj Kayastha
- · Replies 5 ·