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 the time interval T/4 - t, not T/4 + t, in damped oscillation?
- Carbon123
- · Replies 3 ·
Why Does a Car Accelerate When Rolling Down a Hill?
- gelfand
- · Replies 11 ·
Why does perpendicular source motion produce no Doppler shift?
- undividable
- · Replies 3 ·
Car on a hill - reasoning for static friction
- gelfand
- · Replies 5 ·
How much energy does the Earth radiate to space?
- Vector1962
- · Replies 8 ·
Collision of point mass and sphere in particular fashion
- timetraveller123
- · Replies 31 ·
How to find the open circuit voltage?
- ltnghia1304
- · Replies 1 ·
Conservation of momentum, collisions - what about friction?
- gelfand
- · Replies 8 ·
Poynting's theorem in a solenoid
- matnatale
- · Replies 1 ·
Why does increasing mass also increase kinetic energy and velocity?
- aatari
- · Replies 3 ·
Switching coordinate system of a field
- 2sin54
- · Replies 5 ·
Resonance at low and high frequencies of 2 closed end tubes
- Taniaz
- · Replies 7 ·
How to Determine the Image Charges for a Dielectric Interface?
- BREAD
- · Replies 2 ·
Determine the angular frequency of the system in SHM
- richardz03
- · Replies 8 ·
Radius of curvature of trajectory
- Dusty912
- · Replies 2 ·
Special Relativity -- two ships moving in one dimension
- llatosz
- · Replies 10 ·
Potential energy of rubber bands
- rasalzari
- · Replies 16 ·
Calculate the magnitude of torque due to friction
- smad0002
- · Replies 2 ·
Moment of Inertia of equilateral triangle about vertex
- oohaithere
- · Replies 4 ·
Pressure at the bottom of a glass pipe?
- KoontzyN
- · Replies 3 ·
Change in internal energy when water is heated from 0 to 4c
- randomgamernerd
- · Replies 7 ·
Field along vertical axis to hemispherical shell
- user240
- · Replies 1 ·
Differential equation for a pendulum
- Faiq
- · Replies 5 ·
Electric Field and Potential Scenario
- JoeManSho
- · Replies 1 ·
Solving Boat's Friction Force and Speed
- davidge
- · Replies 9 ·
Optics - spherical and plane mirror
- asteeves_
- · Replies 3 ·
What Is the Acceleration of a Dustpan Sliding Down an Inclined Plane?
- Socrates
- · Replies 16 ·
Bridge rectifier transfer function
- Cocoleia
- · Replies 4 ·
Find alternators magnetic field?
- jlmccart03
- · Replies 1 ·
Speed of second proton relative to first in colliding beam apparatus
- ilovejava
- · Replies 1 ·
Find the kinetic coefficient of friction (mu)
- Abhishek Gupte
- · Replies 1 ·
Graphing data from the Compton effect
- danny20051
- · Replies 11 ·
How to Determine the Weight of a Board Suspended by a Spring?
- Kospike
- · Replies 3 ·
Impulse question given flow rate (litres per second)
- Adam Rabe
- · Replies 19 ·
Find current through inductor after many time constants.
- jlmccart03
- · Replies 2 ·
Speed of 530 MeV protons in a linear accelerator
- ilovejava
- · Replies 20 ·
Can total KE ever increase for inelastic collisions?
- vcsharp2003
- · Replies 5 ·
Bowling Ball rolling on a smooth floor
- pancakewaffles
- · Replies 10 ·
How Does Entropy Change Affect Heat Transfer in a Cooling Rock?
- Henry Shi
- · Replies 6 ·
What is the effective resistance between X and Y in this circuit?
- Kajan thana
- · Replies 7 ·
Finding the Value of Theta in Simple Harmonic Motion - Explanation and Solution
- Faiq
- · Replies 20 ·
Radius of curvature of projectile path
- Dusty912
- · Replies 4 ·
Thermodynamics question: temperature between layers
- Adam Rabe
- · Replies 3 ·
Calculation for a radial supply system
- wsharrock
- · Replies 3 ·
Q: Solve Poiseuille's Law for Volume Flow Rate
- Nathan phisi
- · Replies 2 ·
Calculating Mass Percent in UO2 Nuclear Fuel
- Goldberg
- · Replies 12 ·
What is the value of ni for an electron
- cindy1234
- · Replies 6 ·
A block lies on an inclined plane with an angle of elevation
- mistalin
- · Replies 16 ·
Finding angular velocity of rotating square lamina with hanging mass
- Faiq
- · Replies 5 ·
How to find the Coefficient of friction from Fn and Ff Graph
- Harsh Patel
- · Replies 2 ·
Does a person burn calories when lowering a weight?
- vcsharp2003
- · Replies 9 ·
Electricity: shunt calculation for ammeter
- Epoch
- · Replies 3 ·
Romeo and Juliet kinematics problem from Shankar's Fundamentals of Physics
- Lucas_30
- · Replies 9 ·
Magnetic flux between 2 parallel wires
- lowea001
- · Replies 1 ·
Problem applying Newtons third law
- Neil Melnick
- · Replies 2 ·
Pipe flow and cake volume multiple choice problems
- Adam Rabe
- · Replies 3 ·
Object moving upwards by constant force away from planet
- Puff Cube
- · Replies 7 ·
How is momentum conserved in a Gauss Gun?
- adrianowatson
- · Replies 6 ·
Equilibrium Force on Floating Object
- Louns
- · Replies 5 ·
What does the inner product <ψ|Φ> mean in quantum mechanics?
- WWCY
- · Replies 16 ·
Draw the shear force and bending moment diagrams for beams
- DevonZA
- · Replies 8 ·
Internal stresses of an accelerating body
- Mike J
- · Replies 11 ·
Magnetic field of a uniformly magnetized sphere.
- rmiller70015
- · Replies 2 ·
Vibration Problem: Determine Period
- RoyalFlush100
- · Replies 4 ·
Normal force on slipping hemisphere
- Epiclightning
- · Replies 18 ·
Collisions -- conceptual questions
- HSchuster
- · Replies 2 ·
Non-Constant Acceleration Problem
- Jewelz
- · Replies 5 ·
Find Coefficient of Performance of a refrigerator
- grandpa2390
- · Replies 1 ·
Calculation of heat created during compression
- Gosia
- · Replies 2 ·
Magnetic flux through a loop at two orientations
- superslow991
- · Replies 5 ·
Determine the magnitudes and nature of forces in space truss
- DevonZA
- · Replies 12 ·
Conservation of momentum/energy of stacked balls
- GamrCorps
- · Replies 6 ·
Charge passing through a cross section for a time varying current
- superslow991
- · Replies 2 ·
Why is arc length x equal to theta times L in a pendulum?
- SebastianRM
- · Replies 5 ·
How Fast Do Electrons Travel in a Copper Wire?
- fishturtle1
- · Replies 4 ·
How to solve the differential equation for driven series RLC circuit?
- omoplata
- · Replies 1 ·
Finding velocity in SHM with only amplitude given
- Adam Rabe
- · Replies 2 ·
How stretching a rubber band, affects the range of a shot?
- rasalzari
- · Replies 7 ·
Adiabatic process: finding final temperature, work, and enthalpy change
- PhilJones
- · Replies 11 ·
Ammeter with shunt resistors: calculating ranges
- Epoch
- · Replies 8 ·
Solve Entropy Gen of Water-Ice Contact, 100J Transferred
- asteeves_
- · Replies 3 ·
Finding amplitude from displacement and velocity in simple harmonic motion
- asteeves_
- · Replies 1 ·
Three weights and two pulley system
- jerryd87
- · Replies 6 ·
How Do You Calculate the Wavelength of Sound Waves Emitted by a Violin String?
- omiexstrike
- · Replies 4 ·
Phase shift of e.m. wave through a glass plate
- crick
- · Replies 1 ·
What is the Velocity of Point P relative to Point O in a Linkage Arm System?
- Dusty912
- · Replies 48 ·
Magnetic field measurements on solenoid give double the permeability of free space
- bory2eye
- · Replies 1 ·
Electric field from a dipole on the axis between charges
- rbsann
- · Replies 5 ·
Using set squares to measure rebound height in table-tennis experiment
- Janiceleong26
- · Replies 6 ·
Consider the potential field V(x, y) which is 0 and -Vo(Vo>0
- pallab
- · Replies 6 ·
Macro/ micro connections- pressure
- Kmol6
- · Replies 1 ·
Deriving expression for potential of a point charge
- jimmyoung
- · Replies 6 ·
How the launch angle affects the horizontal distance/range?
- rasalzari
- · Replies 17 ·
How the angle of launch affect the range?
- rasalzari
- · Replies 4 ·
Voltage drop and current through each resistor
- SacredBlood
- · Replies 3 ·
Moment of Inertia of a Spinning Record with a Hole in Center
- Jewelz
- · Replies 13 ·
What Is the Correct Calculation for the Running Dog Vector Problem?
- andylatham82
- · Replies 5 ·
How would the electric field vector vary at a large distance
- Naomi13
- · Replies 5 ·
A 300 MHz plane wave propagating through a non-conducting medium
- pallab
- · Replies 2 ·
Overdamped oscillator solution as hyperbolic function?
- Vitani11
- · Replies 4 ·