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 Is the Specific Latent Heat of Fusion for Ice Calculated?
- swede5670
- · Replies 1 ·
Calculating the Impact of a Hammer on a Lawn
- loka
- · Replies 1 ·
Finding wavelength, speed and direction from wave equation y = 0.04 cos(2.5x - 5t)
- mattmannmf
- · Replies 6 ·
How Efficient Can a Heat Engine Be Between 1200 K and 300 K?
- science.girl
- · Replies 12 ·
Thermodynamics: Finding Specific Heat of Ice
- swede5670
- · Replies 1 ·
Max distance of resolution from 2 point sources of light
- Cheezay
- · Replies 1 ·
Where Will the Final Image Be Located in a Two-Lens System?
- withthemotive
- · Replies 1 ·
R1 350 Ohms: What Current Flows at 50V?
- x^2
- · Replies 3 ·
Finding contact force between two blocks pushed together
- loka
- · Replies 1 ·
Roational Inertia of a triangle
- joserse46
- · Replies 4 ·
Finding EMF, internal resistance, and power dissipated in a cell circuit
- swede5670
- · Replies 10 ·
Finding the capcitance of this capacitator
- Dell
- · Replies 13 ·
Finding Period with Double Stars
- rss14
- · Replies 1 ·
Determining Uncertainty in Position using Heinsburg's Uncertainty Principle
- aquella7
- · Replies 1 ·
What Frequencies Form Standing Waves in a Microwave Cavity?
- holaholayo
- · Replies 2 ·
What Is the Acceleration of the Inclined Plane with an Ice Cube Sliding Down?
- tamref
- · Replies 3 ·
How Do Kepler's Laws Explain Satellite Orbits in Simulated Experiments?
- Miriverite
- · Replies 1 ·
R Network- finding total resistance.
- GDGirl
- · Replies 2 ·
Fundamental Frequency of Open and Closed Tube
- veronicak5678
- · Replies 2 ·
Solve Torque Question: Will Free Point B Go Up?
- toqp
- · Replies 1 ·
Is My Method for Calculating Pressure Difference in a Venturi Meter Correct?
- Gorz
- · Replies 1 ·
Calculating Centrifugal Force of a Car on a Curved Road
- Ry122
- · Replies 5 ·
Thin film light interference question
- ia22
- · Replies 1 ·
What is the difference between an induced emf and a back emf?
- jayjay112
- · Replies 2 ·
Elastic Collision: 1kg Object, 0.7kg Object, 0.2s Interval
- ironhawk316
- · Replies 1 ·
How Do You Calculate Thermodynamic Quantities for a Compressed Diatomic Gas?
- ky92
- · Replies 13 ·
Why do magnetic poles always occur in north-south pairs?
- jayjay112
- · Replies 1 ·
Which Hand Rule Determines Current Direction in Magnetic Fields?
- jayjay112
- · Replies 7 ·
Thevenin's equivalent circuit problem
- backstance
- · Replies 5 ·
Rocket changing direction by perpendicular gas ejection
- tamref
- · Replies 4 ·
What Is the Final Velocity of a Mass Accelerated by a Force?
- lisafeary
- · Replies 2 ·
Galileo's incline plane experiment: proving distance proportional to time squared
- paul265
- · Replies 5 ·
Seperation of the induced charge
- 385sk117
- · Replies 2 ·
Can a strong external field reverse magnetism in a bar magnet using domain theory?
- WarFace
- · Replies 1 ·
How to Calculate New Resistance in a Stretched Wire with Uniform Cross Section?
- Steven7
- · Replies 8 ·
Pendulum speed with only height from equilibrium
- Serpentia
- · Replies 4 ·
Why are voltages across resistor and inductor out of phase in an RL circuit?
- driedupfish
- · Replies 1 ·
How Does Charging by Induction Work with a Positive Object?
- jgens
- · Replies 1 ·
Air Pressure and Net Force on a Door in a Tornado
- NPM
- · Replies 3 ·
At what angle should a flashlight be aimed to illuminate a penny on a pool bottom?
- roxxyroxx
- · Replies 7 ·
What is the net torque on a wheel with given dimensions and direction?
- aaronb
- · Replies 4 ·
Centripetal force on amoeba in centrifuge
- brentwoodbc
- · Replies 6 ·
Determining Natural Length of a Spring
- TG3
- · Replies 2 ·
Calculating Average Intensity of a laser blackboard pointer
- patelpalak
- · Replies 5 ·
Work to Stretch Spring from 35cm to 40cm
- TG3
- · Replies 2 ·
Solve Circular Motion: Satellite Height, Speed, Location
- T71979
- · Replies 2 ·
Heating power of two radiators in parallel and series
- Finland
- · Replies 1 ·
What is a Suitable Projectile for a Small Trebuchet?
- davie08
- · Replies 1 ·
Does a body accelerate or move at constant speed once it starts sliding down a slope?
- DIrtyPio
- · Replies 12 ·
Solving for Unknown Frequency: Tuning Fork Beats
- veronicak5678
- · Replies 2 ·
Why are electric field equations E = Kq/r and E = Kq/r² both used?
- Air
- · Replies 13 ·
Where Can I Find Sinusoidal Problems for RC and RL Circuits?
- m.farrukh
- · Replies 2 ·
Special Relativity: Why is Length Contraction Inverse of Time Dilation?
- flooflar
- · Replies 2 ·
What Is the Distance Traveled by a Disc on a Block Before Coming to Rest?
- chingcx
- · Replies 1 ·
How much charge stored in capacitor ?
- ixtra
- · Replies 2 ·
Child on merry-go-round: angular and centripetal acceleration
- heyrefusuck
- · Replies 3 ·
Tension and acceleration in pulley system with rotating pulley
- heyrefusuck
- · Replies 1 ·
The Dot Product and Cross Product: Finding the Angle Between Two Vectors
- raptik
- · Replies 3 ·
Parachutist free fall with drag coefficient change at t=10s
- platonas1
- · Replies 3 ·
What Is the Coefficient of Static Friction for a Ladder Leaning Against a Wall?
- kritzy
- · Replies 7 ·
Accelerating an electron in the y-direction with electric and magnetic fields
- cleggy
- · Replies 1 ·
Finding the coefficient of kinetic friction using impulse/momentum
- cjdavis7
- · Replies 8 ·
What Is the Speed of the Second Puck After a Head-On Collision?
- lilmissbossy
- · Replies 5 ·
Thermal Expansion Ethanol Problem
- Fizzicist
- · Replies 5 ·
Rotational Mechanics(The concept of spinning)
- FedEx
- · Replies 6 ·
Potential difference in parallel - capacitors
- StuckInPhysic
- · Replies 6 ·
Impossible heisburg uncertainty question that makes no sense
- footballfreak
- · Replies 4 ·
Force exerted on inside of a box by a gas
- aolson
- · Replies 4 ·
Calculate Tension in String: m1=4.50 kg, m2=7.50 kg, a=1.4 m/s^2
- itsmyflow
- · Replies 2 ·
What is the Minimum Uncertainty in Block's Speed on a Frictionless Surface?
- footballfreak
- · Replies 4 ·
Estimate the density of the water
- kritzy
- · Replies 4 ·
Object Lifted By Cord (Stress/Tension Problem)
- kritzy
- · Replies 3 ·
Help with Spring Problem - Find a Function & Position at t=pi/12
- infinityhaiti
- · Replies 9 ·
Thermodynamic Work: Find w P, V, T Not Constants
- thejinx0r
- · Replies 1 ·
Angular position, speed, and acceleration
- aaronb
- · Replies 2 ·
Calculating Width of Single Slit Diffraction Pattern
- phy112
- · Replies 5 ·
What Angles Do Colliding Pendulums Reach Post-Elastic and Inelastic Collisions?
- jg597
- · Replies 29 ·
I used to be good at phyics, but
- aviodont
- · Replies 31 ·
B-field Component of Electromagnetic Wave After Change in Time
- x^2
- · Replies 2 ·
What Is the Efficiency of a Monoatomic Ideal Gas Cycle?
- diegzumillo
- · Replies 10 ·
Tuning fork frequency in a resonating water tube
- m.l.
- · Replies 1 ·
Using energy conservation to find forces between two particles
- cleggy
- · Replies 8 ·
Why is the magnetic field zero at the center of a square loop?
- Nimmy
- · Replies 5 ·
How Do You Calculate the Radius of a Copper Cable Using Ohm's Law?
- Malaya
- · Replies 1 ·
Focal length of her contact lenses
- phy112
- · Replies 2 ·
Normal force and friction on a parked car on a 20° slope
- BATBLady
- · Replies 3 ·
Calculating Probability of Particle in a Box
- Kruum
- · Replies 4 ·
Voltage/current in circuit with two temperature sensors
- Mårten
- · Replies 15 ·
Calculating earth's speed using radius and speed of light, etc.
- DDRchick
- · Replies 8 ·
Point charges arranged as a trianngle
- jenzao
- · Replies 1 ·
Temperature and Kinetic Energy question
- 9giddjl
- · Replies 2 ·
Distance between lense and film to get a focused picture
- phy112
- · Replies 1 ·
Measuring power output of solar cells and panels
- jonnyrocks
- · Replies 3 ·
Question on heat transfer of a plane wall
- sero2000
- · Replies 1 ·
What Is the Pressure on an Object 10m Below Sea Level?
- laura297
- · Replies 2 ·
Easy Acceleration / Friction question
- dglenn9000
- · Replies 6 ·
How Do You Calculate Rotational Inertia for a Solid Block?
- seraphimhouse
- · Replies 1 ·
How to Calculate Initial Radioactive Activity for Patient Treatment?
- soul5
- · Replies 1 ·