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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32.76 Time for current to decay with capacitors and resistors
- thedarkone80
- · Replies 2 ·
Force Required to Maintain Conveyor Belt Speed: 7N
- Antu Ghosh
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What is the pressure surrounding a liquid at its boiling point?
- dromeascr
- · Replies 2 ·
Matrix representation of raising operators for a 3-state system
- Mutatis
- · Replies 6 ·
Statics - Support Reaction in Truss
- Philippe
- · Replies 12 ·
Wave packet width given a wave function
- Safder Aree
- · Replies 2 ·
How to determine if this is β- or β+ decay?
- PerpetuallyConfused
- · Replies 9 ·
How to proceed from a Poisson bracket calculation
- Apashanka das
- · Replies 1 ·
Rope on Table Kleppner-Mechanics
- MARX
- · Replies 11 ·
Circular motion in the vertical plane
- WhiteWolf98
- · Replies 1 ·
Friction problem (pushing a box)
- Alyona
- · Replies 3 ·
Coriolis deviation of a bullet fired northward at 45° latitude
- Foruer
- · Replies 6 ·
Harmonic Oscillator violating Heisenberg's Uncertainity
- Safder Aree
- · Replies 8 ·
What is the Weight Percentage of Nitrogen in Air?
- atim
- · Replies 2 ·
Imagine You're Shrunk Down to a Size of a Nickel
- Daniel Tales
- · Replies 11 ·
When to use fictitious forces for motion in an accelerating elevator?
- Eitan Levy
- · Replies 12 ·
Why doesn't pressure from N molecules sum to N times the individual pressure?
- CGandC
- · Replies 5 ·
Kleppner - blocks and a compressed spring
- ftang
- · Replies 3 ·
Can a reed switch use a wheatstone bridge/potential divider?
- Daniel2244
- · Replies 1 ·
How to find the coefficient of kinetic friction
- Ushitha Dissanayake
- · Replies 4 ·
Wavelengths: Length between 2nd-order fringes
- okandrea
- · Replies 3 ·
How do I find the terminal speed of a body in water?
- Ushitha Dissanayake
- · Replies 13 ·
Finding the Total Charge of a Non-Uniformly Charged Disc
- Hatyk
- · Replies 5 ·
What is the operation principle of the LDR?
- Daniel2244
- · Replies 14 ·
How does a thermocouple exploit the Seebeck effect?
- Daniel2244
- · Replies 5 ·
Can you solve for 't' in this equation?
- Tat
- · Replies 6 ·
Finding the difference between two vectors and vector multiplication
- Sam Cepeda
- · Replies 1 ·
Irodov 3.3: charge leaking from two suspended spheres with approach velocity
- Brilli
- · Replies 50 ·
Why does piezoelectric need amplifying?
- Daniel2244
- · Replies 5 ·
How do we know the cosmic microwave background came from the Big Bang?
- BadgerBadger92
- · Replies 3 ·
Volcano Question, PHYS 200 final
- David89
- · Replies 30 ·
Does a superconducting wire affect the self inductance of a solenoid?
- Jahnavi
- · Replies 34 ·
LR circuit - Which bulb gets dim quickly?
- Jahnavi
- · Replies 17 ·
Law Conservation of Energy: Starting off a solution for 11b
- Jigga
- · Replies 1 ·
Magnetic field and coplanar loops
- Jahnavi
- · Replies 10 ·
Deriving the average velocity formula Vaverage = (V1 + V2) / 2
- Indranil
- · Replies 17 ·
Position of particles on a detector after decay
- Cocoleia
- · Replies 23 ·
Coordinate Systems and Components of a Vector
- Sam Cepeda
- · Replies 1 ·
Maximum kinetic energy / cutoff potential problem
- chef99
- · Replies 1 ·
Why Does V Equal u Plus Delta v in Velocity Calculations?
- Indranil
- · Replies 7 ·
Calculating energy/work of a quantum
- chef99
- · Replies 2 ·
Verifying Kirchoff's law in an AC RLC circuit
- Felipe Lincoln
- · Replies 7 ·
Viewing Particle P in a Cylindrical Vessel - 40 cm Height Needed
- Rightwrong
- · Replies 8 ·
How many electrons were transferred to create an attractive force of 1 N?
- Physics boi
- · Replies 4 ·
What Happens to Metal Boxes in Magnetic Fields?
- Jahnavi
- · Replies 4 ·
What is the solution for particle motion between two masses?
- Gregorski
- · Replies 12 ·
Bar magnet and a current carrying wire
- Jahnavi
- · Replies 13 ·
Direction of induced current in the loop
- Jahnavi
- · Replies 2 ·
Magnetic field due to a solenoid
- Jahnavi
- · Replies 8 ·
2 weights on strings, 1 attached to pulley, the other end anchored
- wolfpack4417
- · Replies 5 ·
Effect of zero gravity on spinal compression
- BransonMO
- · Replies 6 ·
What is the thickness of the wall of a hollow iron sphere submerged in water?
- kristjan
- · Replies 3 ·
What does self induction per unit length signify?
- Jahnavi
- · Replies 7 ·
Describing the translation and rotation of a square frame
- Igor Oliveira
- · Replies 3 ·
Finding angle of hinge reaction force on a trapdoor
- ephphatha16
- · Replies 3 ·
Deriving gravitational force from final speed and acceleration time
- Vraj Patel
- · Replies 8 ·
Magnet moved in a circular coil
- Jahnavi
- · Replies 10 ·
EMF induced in a coil encircling an ideal solenoid
- FranzDiCoccio
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Solve Archimedes Problem: Find Crown's Density
- Dipra Irham
- · Replies 4 ·
Finding Equilibrium in Electric Fields of Two Charges
- againstcalculus
- · Replies 13 ·
Finding the Length and Velocity of a Spring in Circular Motion
- Ruskointhehizzy
- · Replies 4 ·
Finding the Magnitude of 3 Forces on a Square
- alijan kk
- · Replies 24 ·
Calculating Charge Of Electron (Millikan Oil Drop Experiment
- Manav
- · Replies 1 ·
Change in temperature when a gas is in a moving container
- Krushnaraj Pandya
- · Replies 6 ·
To reduce cost and weight, power transmission lines are made
- g98
- · Replies 6 ·
Wattage an of engine sufficient to move a car
- razidan
- · Replies 15 ·
Confusion about the Lorentz force
- Silicon-Based
- · Replies 29 ·
Replicating Eratosthenes' experiment to measure Earth's circumference
- Frenchies
- · Replies 35 ·
Calculating the mass of an object
- Ross duffy
- · Replies 8 ·
Vertical reaction force on abseiling rock climber
- Viraj Vasantla
- · Replies 7 ·
What Is the Average Minimum Score Needed to Pass a Job Exam?
- kent davidge
- · Replies 5 ·
Calculation of the weight of an insect floating by surface tension
- srm
- · Replies 1 ·
Relativistic Distance/Time Problem
- chef99
- · Replies 4 ·
Elastic collision problem (μk) is the target variable
- PedroPicapiedra
- · Replies 2 ·
Finding induced emf and charge location in a moving wire through a magnetic field
- titansarus
- · Replies 7 ·
Optimal launch angle for maximum cannon range on Earth and Moon
- Jonathan martin
- · Replies 2 ·
Potential due to a charged plate using the dipole approximation
- sid0123
- · Replies 10 ·
Find the magnetic field at the center
- Fatima Hasan
- · Replies 4 ·
Determining the time interval in a radiation counting problem
- SKT_90
- · Replies 5 ·
Lambda decay, momentum of the pion and proton
- Cocoleia
- · Replies 33 ·
Find the magnetic field at a point
- Fatima Hasan
- · Replies 7 ·
Electric Potential of a Sphere at Different Locations
- jakeginobi
- · Replies 1 ·
Length Contraction/Relativistic mass question
- chef99
- · Replies 2 ·
The case that has the highest torque on the loop
- Fatima Hasan
- · Replies 5 ·
How Do You Calculate the Capacitance of a Sphere Using Only Charge or Potential?
- Safder Aree
- · Replies 4 ·
Particle decay, Lorentz transformations with angles
- Cocoleia
- · Replies 22 ·
Without integrating, show two metal spheres collide in <425s
- jack476
- · Replies 3 ·
Help with the falling ruler problem from video at 8:03
- Ahmedemad22
- · Replies 27 ·
How to find the final angular velocity
- zami
- · Replies 7 ·
Non-ideal voltmeters and ammeters
- Eitan Levy
- · Replies 12 ·
Electrical Component with the Letter M?
- Simon981
- · Replies 2 ·
Charge on the capacitor after changing the switch position
- Fatima Hasan
- · Replies 3 ·
Thermodynamic Entropy Change Upon Partition Removal
- Apashanka das
- · Replies 10 ·
How to calculate the Work (Joules) of lifting a book
- Alyssa Eiger
- · Replies 4 ·
Resonance box with tuning fork, standing wave
- late347
- · Replies 4 ·
Particle decay momentum and energy conservation in special relativity
- Cocoleia
- · Replies 6 ·
Solving a circuit using both the mesh and node analysis
- kstorm19
- · Replies 3 ·
Find the launch speed of a ball in a spring mechanism
- Izwx2000
- · Replies 8 ·
Tension in rope holding a 110 kg anvil at a wall hook
- Favio
- · Replies 13 ·