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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Can Green's Theorem Calculate the Moment of Inertia for Solid Objects?
- Oomair
- · Replies 1 ·
How Do You Calculate the Muzzle Velocity Using Conservation of Momentum?
- TheLegace
- · Replies 4 ·
Work performed by a Carnot engine melting ice at 0°C
- horsegirl09
- · Replies 7 ·
Determining temperature of a diatomic gas
- Deoxygenation
- · Replies 4 ·
Spring-driven carts: speed, mass, impulse and acceleration ratios
- TheLegace
- · Replies 3 ·
Calculating Original Speed of Exploding Mess Kit
- rosstheboss23
- · Replies 4 ·
Calculating Resistance & Current for Two Lightbulbs in Series
- MIA6
- · Replies 17 ·
Differential equation for charge on capacitor when discharging through resistors
- breez
- · Replies 6 ·
What is the value of the loss volt and internal resistance of the battery?
- looi76
- · Replies 2 ·
Hat is the potential difference between X and 65cm mark in the circuit
- looi76
- · Replies 3 ·
What does T represent in the simple pendulum period formula?
- Air
- · Replies 5 ·
Find total displacement of the particle in motion
- iman.f
- · Replies 1 ·
Standard deviation revised by removing a sample
- cdux
- · Replies 7 ·
Solve Mass Spring System: Find Velocity & Compression
- breez
- · Replies 6 ·
Calculating Potential Difference in Parallel Circuits
- looi76
- · Replies 5 ·
What are the meter readings in the circuit?
- looi76
- · Replies 1 ·
Resonance in tube filled with air
- bharp24
- · Replies 3 ·
Conservation of Momentum / Kinetic Energy - What am I doing wrong?
- bacnka
- · Replies 4 ·
Package sliding down incline with friction and spring compression
- akhila1489
- · Replies 3 ·
Finding charge density from voltage on a conductor
- Durato
- · Replies 1 ·
How Does Melting Ice Affect Entropy in a Calorimeter System?
- laxplayer1189
- · Replies 1 ·
Thermal Efficiency of an air conditioner
- laxplayer1189
- · Replies 1 ·
Why is the formula for energy stored in a spring different from other forces?
- nokia8650
- · Replies 2 ·
Calculating the Number of Bounces for a Moving Ball
- ironhill
- · Replies 15 ·
Calculating Velocity of a Collar Released from a Depressed Spring
- Jason03
- · Replies 10 ·
How Fast Will the Comet Travel at the Midpoint Between Two Stars?
- rebeldiiamond
- · Replies 2 ·
Pascal's principle hydraulic press with different piston sizes
- jinman
- · Replies 3 ·
Transformer resistance question
- Gear300
- · Replies 8 ·
Easy question on diffraction of light
- Sabrina_18
- · Replies 3 ·
Calculate the resistance of iron if
- looi76
- · Replies 1 ·
Thermal Equilibirum Calorimeter
- TFM
- · Replies 3 ·
Calculate resistivity of the material of the wire
- looi76
- · Replies 3 ·
Finding boxer's mass from spring compression
- sup90
- · Replies 8 ·
What is the average radius of the pipe within the hill?
- jinman
- · Replies 2 ·
Find the diameter of copper wire
- looi76
- · Replies 13 ·
Calculating Water Pressure and Displacement in a Vertical Pipe
- alibaba2
- · Replies 4 ·
Conservation of Energy and Centripital Motion question
- ubermuchlove
- · Replies 6 ·
What Is the Current Through a Resistor with Internal Battery Resistance?
- jimmyting
- · Replies 3 ·
Calculate the resistance per meter
- looi76
- · Replies 1 ·
What is the Speed of a Paint Bucket System Using Conservation of Energy?
- ubermuchlove
- · Replies 4 ·
How Is Force Calculated on a Proton in a Magnetic Field?
- jimmyting
- · Replies 3 ·
Heat flow through copper-steel composite rod
- tizzful
- · Replies 2 ·
Finding the force between 2 finite length wires
- jimmyting
- · Replies 3 ·
How Do You Calculate the Rotational Inertia of a Hollow Cylinder?
- Oomair
- · Replies 1 ·
Understanding PV Diagrams - Work
- tizzful
- · Replies 1 ·
How Do You Calculate Average Speed for Different Return Speeds?
- zachcumer
- · Replies 9 ·
How Much Energy is Dissipated in an LR Circuit When the Switch is Released?
- breez
- · Replies 2 ·
How Does a Damped Oscillator Behave with Different Initial Conditions?
- coffeem
- · Replies 1 ·
How Do You Calculate the Contrast of a Sinusoidal Grating?
- isabelle87
- · Replies 1 ·
Conservation of Momentum with angles T_T
- sup90
- · Replies 2 ·
Conceptual Question- Hydrostatic Pressure
- bcjochim07
- · Replies 1 ·
Number of Visible Diffraction Orders on a Grating
- Sabrina_18
- · Replies 4 ·
How Do Red and Blue Laser Photon Emissions Compare at Equal Power?
- elephantorz
- · Replies 4 ·
How Do You Calculate Mars' Theoretical Equilibrium Temperature?
- coffeem
- · Replies 4 ·
Relativistic Doppler Effect and a Baseball
- TFM
- · Replies 6 ·
Final project for my AP Physics class
- matt7944
- · Replies 7 ·
Finding where electric field is zero between two charges
- viet_jon
- · Replies 4 ·
Spring stretch with 2 kg and 3 kg masses on frictionless surface
- Cantworkit
- · Replies 1 ·
Thermal efficiency of a coal powered power station
- coffeem
- · Replies 4 ·
Work-energy problem setup check
- Jason03
- · Replies 5 ·
Ball whirling on two strings, minimum speed and tension
- warmfire540
- · Replies 24 ·
Spring-piston gas cylinder compressed when heated from 16°C to 160°C
- bcjochim07
- · Replies 7 ·
Interstellar space travel and reference frames
- sr57
- · Replies 3 ·
Hooke's Law Problem: Finding Maximum Displacement with Inelastic Collision
- sr57
- · Replies 10 ·
Initial Velocity of Bowling Ball in Physics Problem
- uvburgos
- · Replies 1 ·
Find resistance with length in a circuit
- logic111
- · Replies 7 ·
What is the work done by an ideal gas in an isobaric process?
- hsestudent
- · Replies 4 ·
Calculating the Energy for Equal de Broglie Wavelengths of Photons and Electrons
- ariana13
- · Replies 6 ·
Determine Initial Velocity of Projectile with Ballistic Pendulum
- uvburgos
- · Replies 5 ·
How Does Energy Transfer in a Collision Between Moving and Stationary Particles?
- j-lee00
- · Replies 1 ·
Static friction between blocks in SHM with unknown top block mass
- scholio
- · Replies 4 ·
Calculating Time, Distance, and Velocity in a Kinematic Problem
- 9giddjl
- · Replies 6 ·
Finding Magnitude of Velocity with Variables
- RedRumRiots
- · Replies 3 ·
How Does Coulomb's Law Apply When Socks Repel in a Dryer?
- lalablu3
- · Replies 1 ·
Charged ring inside a conducting sphere.
- calcisforlovers
- · Replies 1 ·
Lunar crater impact experiment using maltesers and flour
- Razza
- · Replies 2 ·
Speed of two protons (I think an easy question)
- iamkristing
- · Replies 1 ·
Understanding Energy and Current in a Complex Circuit
- ~christina~
- · Replies 30 ·
How Do You Calculate Period and Frequency of a Harmonic Oscillator?
- chocolatelover
- · Replies 7 ·
Simple harmonic motion, finding displacement given time
- scholio
- · Replies 1 ·
How can torque on the rotating wheel be calculated using the given parameters?
- because789
- · Replies 10 ·
What is the final volume of the container?
- houseguest
- · Replies 5 ·
What is the speed of an electron in the Bohr model of the hydrogen atom?
- iamkristing
- · Replies 2 ·
Calculating Potential Difference Between Parallel Wires with Charge Densities
- pidoctor314
- · Replies 8 ·
Find the frequency in an LRC circuit
- tony873004
- · Replies 1 ·
Diffraction Problem: Solve for O
- jcpwn2004
- · Replies 5 ·
Why Is the Calculation of Santa Ana Wind Temperatures Tricky?
- bcjochim07
- · Replies 4 ·
Explanation of the centripetal force and acceleration
- selishaphysic
- · Replies 2 ·
Calculating Pressure Inside Airtight Container
- jinman
- · Replies 4 ·
Relativistic Lightning on Train Problem
- TFM
- · Replies 4 ·
Two dumbbells colliding with coefficient of restitution e
- jsmith12
- · Replies 1 ·
Finding current and energy cost for a 120V motor with 2.50hp output
- ~christina~
- · Replies 3 ·
Just understanding capacitors and e-fields
- buddingscientist
- · Replies 1 ·
Help with physics equation from image
- Shackleford
- · Replies 3 ·
Rearranging a Relativity Equation
- TFM
- · Replies 13 ·
Finding Initial Velocity and Direction of a Ball in Free Fall
- kasse
- · Replies 4 ·
Why does a photodiode have negative voltage and current in its I-V curve?
- sanado
- · Replies 12 ·
How Do Electric Field Diagrams Indicate Charge and Field Strength?
- negatifzeo
- · Replies 1 ·
What will a voltmeter read if it is connected between c and infinity?
- TFM
- · Replies 8 ·
Why is the anode and cathode reversed in a diode?
- sanado
- · Replies 2 ·