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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How Do You Find Extragalactic Cepheid Variable Databases?
- SoulOfSword_
- · Replies 2 ·
Constant of thermal conductivity and heat flow in a given time
- Bolter
- · Replies 2 ·
Bernoulli equation in a closed loop system
- icham
- · Replies 8 ·
Rotating flywheel problem
- Bolter
- · Replies 3 ·
Calculate the margin of error in this physics lab
- VitaminK
- · Replies 12 ·
Is the Loss of Kinetic Energy Related to the Volume of a Copper Atom?
- Bolter
- · Replies 4 ·
The Mystery of Purple Objects: Understanding Electromagnetic Force
- Amoghgirgaonkar
- · Replies 3 ·
Deriving the pressure energy equation from first principles
- tomtomtom1
- · Replies 3 ·
Does pushing a box 63 m with 10 N require 630 J of energy?
- tomtomtom1
- · Replies 3 ·
Does Polarity and Current Direction Affect Energy Flow in AC Circuits?
- charminglystrange
- · Replies 2 ·
Rotational motion and finding the moment of inertia
- Bolter
- · Replies 6 ·
Metal bar moving in a magnetic field
- darkar87
- · Replies 2 ·
Finding centripetal force with friction on a horizontal surface
- tortilla
- · Replies 10 ·
How do you calculate binding energy for part c)ii?
- Bolter
- · Replies 9 ·
Sig Figs: 10.00cm, 16.38cm, 29.10cm to 2 Decimal Places
- physicslady123
- · Replies 3 ·
How do I find the voltage across resistors in a series circuit?
- yamm14
- · Replies 4 ·
Integrating d²x/dt² = -k²/x³ for particle motion
- Saptarshi Sarkar
- · Replies 2 ·
The electric field of a piecewise uniform 1D charge distribution
- sudera
- · Replies 13 ·
Bullet embedding in wooden block: momentum and motion analysis
- TextClick
- · Replies 4 ·
Why is internal energy zero when steam partially condenses at constant temperature?
- etotheipi
- · Replies 12 ·
Does the speed of sound depend on the speed of the medium?
- anonymous99
- · Replies 4 ·
How to find the velocity needed to melt a snowball
- TextClick
- · Replies 4 ·
Rotational dynamics: Rotating rod with two attached balls about a non principal axis
- Nacho_rc11
- · Replies 8 ·
Find the point of separation in SHM
- Vivek98phyboy
- · Replies 15 ·
Electromagnetic Induction exercise, is something wrong with these answers?
- Stephen Bulking
- · Replies 11 ·
Finding the period of a satellite in Earth orbit
- BiggestAfrica
- · Replies 10 ·
Kinematics of deformation (Continuum mechanics)
- Jinjolee
- · Replies 5 ·
Universal gravitation problem with two masses and a point between them
- TextClick
- · Replies 5 ·
How Do You Determine Temperature in Series Carnot Engines by Equating Work Done?
- Prabs3257
- · Replies 5 ·
Why does my normal force calculation give wrong angle for rings on hoop?
- Edidas
- · Replies 5 ·
Two Speaker Destructive Interference
- Kharrid
- · Replies 1 ·
Closest point to a set with l1 norm
- CCMarie
- · Replies 3 ·
Obtaining work from two bodies by a heat engine
- Parzeevahl
- · Replies 2 ·
What Are Rotational Angular Values in Free Body Diagrams?
- Alexis2020
- · Replies 1 ·
Physics position problem (Block on a flatbed)
- Alexis2020
- · Replies 5 ·
Poynting vector -- Calculate the EM power transmitted down a coax cable
- denniszhao
- · Replies 4 ·
How Is Maximum Spring Compression Calculated in Physics Problems?
- songoku
- · Replies 2 ·
Finding inclination angle of stick on two springs with applied force
- Hajarmq
- · Replies 16 ·
Inserting thick lenses into a thin lens system and deducing values
- Kaelor
- · Replies 1 ·
Work done BY the gas in a cyclic thermodynamic process
- Aletag
- · Replies 2 ·
Spring stiffness and Heat Capacity (Equipartition of energy)
- godiswatching_
- · Replies 4 ·
Calculating the Second Moment of Area for Floating Bodies
- tomtomtom1
- · Replies 2 ·
Isothermal process involving changes in Volume and Pressure
- dbag123
- · Replies 4 ·
Pressure of an ideal gas -- A Level Multiple Choice Problem
- maxelcat
- · Replies 2 ·
Thermodynamics problem involving engine efficiency
- Stephen Bulking
- · Replies 20 ·
Understanding Waves for Solving Problems
- StillAnotherDave
- · Replies 5 ·
G-force experienced by a jumper, using a DE
- JessicaHelena
- · Replies 15 ·
Calculating total charge when the electric field is given
- Saptarshi Sarkar
- · Replies 7 ·
Damped Simple Harmonic Motion: Finding Amplitude Reduction in Carbon Dioxide
- erisedk
- · Replies 3 ·
Correct statement regarding the graph of binding energy per nucleon
- songoku
- · Replies 11 ·
Inclined Planes, finding time from acceleration at an angle
- ericcy
- · Replies 9 ·
Getting Force with distance, mass and time
- DaRafster
- · Replies 1 ·
Why work-energy method gives wrong answer for spring potential energy
- ericcy
- · Replies 5 ·
Conservation of Momentum involving Vf, elastic collisions
- ericcy
- · Replies 6 ·
Inclined Planes, finding final velocity
- ericcy
- · Replies 6 ·
Correct statement regarding nuclear reactions
- songoku
- · Replies 15 ·
Finding the Power Produced by a Hydroelectric Generator
- bieon
- · Replies 2 ·
Force between two perpendicular wires
- Eitan Levy
- · Replies 3 ·
Closest approach of alpha particle - two separate methods
- etotheipi
- · Replies 4 ·
Calculate the moment of inertia of this body
- leynat
- · Replies 4 ·
Force of the Ladder on a Wall Torque
- astoll
- · Replies 5 ·
Buoyancy and the Archimedes Principle
- tomtomtom1
- · Replies 6 ·
Working with Newton's Third Law and friction
- ramseycharles0
- · Replies 2 ·
Determine the mass of the planet using Newton’s Law of Universal Gravitation
- Petronius
- · Replies 2 ·
To find the work done in extending a spring
- gnits
- · Replies 3 ·
Thermal energy of a system
- yamm14
- · Replies 2 ·
Electric field from an infinite charged slab using Gauss's law
- askcr9
- · Replies 20 ·
Electrostatic potential due to a dipole
- Crystal037
- · Replies 7 ·
How Long Does a Box Stay In Contact With a Spring as it Bounces Off of it?
- Heyxyz
- · Replies 23 ·
Oscillations: The position is modeled as x(t)=Acos(ωt+ϕ)
- jdmaxwell02
- · Replies 4 ·
Newton's third law problem/kinematics (Airboat problem/no friction)
- Petronius
- · Replies 3 ·
Conservation of momentum in a bullet-block-spring system
- AL115
- · Replies 6 ·
Why Potential Energy cannot be included twice?
- CGandC
- · Replies 4 ·
The Total Energy of the Hydrogen Atom's Electron
- needshelp
- · Replies 2 ·
Power and Mass Question -- A helicopter accelerating and ascending
- yamm14
- · Replies 6 ·
The efficiency of a heat engine
- gregorspv
- · Replies 4 ·
Amplitude of oscillation for SHM
- Saptarshi Sarkar
- · Replies 4 ·
Cannon recoil momentum problem: sign error in frame reference equation
- Kermit_the_Phrog
- · Replies 5 ·
Solving the Platform and Object Kinetic Energy Equation
- eyespy
- · Replies 8 ·
Finding the magnetic field at a point P
- bfusco
- · Replies 9 ·
Finding the equation of motion from amplitude and phase angle
- Alexan
- · Replies 31 ·
Energy problem with 2 objects (a mass flying vertically off of a ramp)
- PedroPicapiedra
- · Replies 7 ·
How do I calculate the time and distance for a pendulum projectile problem?
- velocityoverrtime2
- · Replies 1 ·
Wire rotating inside a magnetic field
- Moara
- · Replies 8 ·
E field calculation for q sphere
- fisher garry
- · Replies 4 ·
Solving for x in .5((cos 12)^2)^x = 1/9
- johnsobertstamos
- · Replies 17 ·
Finding the magnitude of the hydrostatic force per unit of circumference
- tomtomtom1
- · Replies 5 ·
Is a Rate of 100K/s an Intuitively Offensive Way to Measure Temperature Change?
- Bolter
- · Replies 9 ·
Solving for the Damping Constant
- lightlightsup
- · Replies 11 ·
Time period of oscillation of charge in front of infinite charged plane
- Saptarshi Sarkar
- · Replies 3 ·
Electron moving inside a region of homogeneous electric field
- Moara
- · Replies 3 ·
Spring pendulum with and without weight
- Stuka_Hunter
- · Replies 1 ·
Conservation of Momentum: Elastic Collision of Two Masses
- sciencec
- · Replies 1 ·
Horizontal Circular Motion With Lagrange
- Fascheue
- · Replies 5 ·
Calculate the amount of water vapor
- dbag123
- · Replies 3 ·
Working out the rate of heat loss from a radiator
- Bolter
- · Replies 14 ·
Finding latent heat of vaporisation
- Bolter
- · Replies 3 ·
Velocity of an object on an inclined plane
- Prabs3257
- · Replies 7 ·
Particle in a well, can someone explain how this step works
- Theodore0101
- · Replies 1 ·
Finite quantum well, multiple choice question
- Theodore0101
- · Replies 3 ·