Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Height of a drop in a dripping faucet
- krackers
- · Replies 2 ·
Two electrons repelling from 5.0×10⁻¹² m apart
- MystiqThunder
- · Replies 5 ·
Average power in series LC circuit
- Rugile
- · Replies 3 ·
How Does Frequency Affect RLC Circuit Outputs?
- EROC
- · Replies 3 ·
Nuclear fission and nuclear to thermal energy conversion
- kirsten_2009
- · Replies 3 ·
Find Out Why Orientation C is Least Likely to Break Wires
- c2015cg
- · Replies 1 ·
Calculating Force Exerted by Fish on Fishing Reel
- NRip897
- · Replies 1 ·
Calculating Deviation of a Bullet's Trajectory
- davidbenari
- · Replies 1 ·
Calculating Distance and Acceleration of a Wind Turbine Blade Tip
- dmoney123
- · Replies 1 ·
Finding minimum push force for a table
- leahbender
- · Replies 1 ·
Velocity of an Electron from Momentum
- dbmorpher
- · Replies 11 ·
Finding X and Y components of a vector of magnitude
- Sonny18n
- · Replies 4 ·
Moments of Inertia of two particles
- Spaceflea
- · Replies 3 ·
Finding maximum in interference pattern
- Les talons
- · Replies 2 ·
Microstates and multi-dimensional oscillators
- quickclick330
- · Replies 5 ·
Maximum length of chain pulled by constant force
- tokkii
- · Replies 12 ·
What is the error in the solution for Example 25.3.1(a) on page 11?
- hydroxide0
- · Replies 5 ·
Voltage between two points with linear electric filed integral
- baby_1
- · Replies 3 ·
Projectile Motion ball is launched
- Tanya Sharma
- · Replies 10 ·
Bouncing ball - How many times does it bounce
- Ritzycat
- · Replies 3 ·
Is there a difference between initial speed and initial velocity?
- ncredibler
- · Replies 11 ·
How to Graph Moment of Inertia and Frictional Torque?
- cam borrett
- · Replies 2 ·
Does a Constantly Moving Charge Produce a Constant Magnetic Field?
- Dikshant
- · Replies 3 ·
Temperature as a measure of the kinetic energy of molecules
- Karol
- · Replies 13 ·
Angular Momentum of Spinning Chair and Wheel
- hydroxide0
- · Replies 1 ·
Bowling ball transitioning from sliding to rolling without slipping
- Samuelriesterer
- · Replies 1 ·
Conservation of energy in a wheel
- paalfis
- · Replies 5 ·
Equilibrium of a Particle: Finding the Unstretched Length of a Spring
- edwinandrew
- · Replies 1 ·
Find the Oxygen Mass in a Welding Tank
- dereklin
- · Replies 2 ·
Energy from EM wave through window over 30s
- reed2100
- · Replies 2 ·
Are R4 and R5 in series in this circuit?
- B18
- · Replies 8 ·
Particle inside a smooth groove performing circular motion
- Adithyan
- · Replies 17 ·
Friction Problem -- String is tied to a block and a hanging bucket
- Nithya115
- · Replies 9 ·
Solving for Velocity of Particle in Deep Outer Space
- Ryanu
- · Replies 1 ·
Energy of Oscillations in Clamped String of Tension T
- Ange98
- · Replies 9 ·
Power output by basketball player when jumping
- Jazz
- · Replies 7 ·
An inclined plane, fixed to the inside of an elevator, makes a 32 degrees angle
- hitemup
- · Replies 12 ·
Is There a Constant Parallel to ε0 in Gauss's Law in cgs?
- Karol
- · Replies 3 ·
Acceleration of block with bucket of washers using kinetic friction
- Nithya115
- · Replies 1 ·
Given Current and Resistance in a Circuit, find the Voltage of a Battery
- frownifdown
- · Replies 13 ·
Calculating Specific Heat Capacity: Solving for Unknown Variables
- rrosa522
- · Replies 4 ·
Galvanometer reading at balance point in a circuit
- werson9339
- · Replies 2 ·
Finding the moon's orbital period given Earth's radius
- Boe Nancy
- · Replies 18 ·
Magnitude of the electric field between the plates
- lil.l3b91
- · Replies 1 ·
Changing masses on an atwood machine
- overthewater
- · Replies 1 ·
Ampere's Law - Showing that B at center is due only to wire
- whoareyou
- · Replies 1 ·
Which satellite is higher if it crosses the sky slower?
- Tangeton
- · Replies 3 ·
Circular Motion Ball on a String
- Fredred
- · Replies 1 ·
Does intensity vary as y²/x⁴ when displacement depends on x?
- desmond iking
- · Replies 28 ·
What is the magnetic flux through the prism's right side?
- Se Hoon Park
- · Replies 2 ·
Calculating Angular Speed of a Disk with Applied Torque and Constant Force
- ljucf
- · Replies 9 ·
Energy - Ski sliding down a ramp
- Ritzycat
- · Replies 7 ·
What factors affect the trajectory of a soccer ball in projectile motion?
- Baquedano
- · Replies 3 ·
What is the definition of the D-Offset in the Parallel Axis Theorem?
- Aristotle
- · Replies 3 ·
Free body diagram and applying Newtons law
- nilly
- · Replies 4 ·
How many nodal lines for two point sources at 2.5 lamda separation?
- MaryCate22
- · Replies 1 ·
How Do You Calculate Force from a Two-Dimensional Potential Energy Function?
- Thermon
- · Replies 3 ·
How Far Will the Weight Be After Being Thrown on a Frictionless Surface?
- Tom2
- · Replies 3 ·
Conservation of momentum with one unknown mass in collision
- princesspeach13
- · Replies 1 ·
Confusion with Thermodynamics and Work-Energy Equations
- barryj
- · Replies 21 ·
How to Calculate Work and Power in a Mass Spring System
- Harshmau5
- · Replies 7 ·
Spring-launched ball: finding launch angles for 3 m range
- Jazz
- · Replies 10 ·
Determine the magnitude and direction of the effective value of g
- hitemup
- · Replies 1 ·
Block released from compressed spring with friction: distance, work, and power
- Harshmau5
- · Replies 2 ·
Van der waals attraction between 1-D wires
- CAF123
- · Replies 2 ·
Circular Motion with time-dependent radial acceleration
- TwoSeventyOne
- · Replies 3 ·
Algebraic Manipulation of Equations
- EzequielSeattle
- · Replies 3 ·
Finding tension in a pulley system with angled forces
- nrv07
- · Replies 2 ·
Work and Rotational Kinetic Energy (Falling Chimney)
- maxhersch
- · Replies 1 ·
Elevator Physics: Power & Mass Analysis
- Newton22
- · Replies 10 ·
Two gravitating spheres (M, 2M) released 8R apart collide
- whatisphys
- · Replies 3 ·
Electric Potential with Non-conducting sphere and conducting shell
- electronvolt
- · Replies 1 ·
Object flying eastward at 500 m/s in 90 m/s crosswind
- max1995
- · Replies 9 ·
Projectile motion with a few variables
- mwks
- · Replies 2 ·
Tension in three wires supporting a 4 kg ball
- max1995
- · Replies 20 ·
Calculate the retarding force of a cyclist on a slope
- Nicaragua
- · Replies 10 ·
Where is the weakest point of a cylinder in a piston system?
- FG314
- · Replies 6 ·
Finding frequency and amplitude of spring-block oscillator
- QuantumKnight
- · Replies 12 ·
Pendulum problem: particularly the wording Rest position.
- hongiddong
- · Replies 2 ·
Fish has gone missing in a tank
- Les talons
- · Replies 6 ·
[Problem] Elastic potential energy
- AmirT
- · Replies 6 ·
Acceleration of a mass hanging from a pulley
- EzequielSeattle
- · Replies 5 ·
Finding g using a spring and identical masses
- Odrevan
- · Replies 1 ·
Kinetic energy after falling to 100m
- Smartgurl
- · Replies 1 ·
Can the energy method for this system be represented in a matrix form?
- JI567
- · Replies 2 ·
Finding mass and spring constant from two oscillation periods
- QuantumKnight
- · Replies 5 ·
Dew point and exhaust temperature
- princejan7
- · Replies 1 ·
Why Does Increasing Friction Not Lift an Object Against Gravity?
- AlbertE97
- · Replies 3 ·
Calculating initial velocity and angle to hit target with toy gun
- BobGStop
- · Replies 4 ·
How to solve this ratio/proportionality question?
- Tangeton
- · Replies 2 ·
What is the mistake in my calculation for gravitational field strength?
- pyman999
- · Replies 1 ·
Energy required to stretch a spring with nonlinear force
- TheWhiteKnyt
- · Replies 1 ·
Find focal length for meniscus convex
- jwxie
- · Replies 1 ·
Focal Length Problem: -30cm Converging/Diverging Lens
- Chase11
- · Replies 5 ·
Finding initial height in oblique motion with v0=10 m/s at 45°
- jecg
- · Replies 1 ·
Gravitional Potential Energy Question
- squirrelschaser
- · Replies 8 ·
Find period from centripetal motion that provides its own gravity
- JSmithDawg
- · Replies 2 ·
Torque on a ladder hinge due to the ladder's weight
- EzequielSeattle
- · Replies 1 ·
How Can You Calculate the Length of a Ramp Based on Sliding Time and Friction?
- neongoats
- · Replies 4 ·
Find how far apart are the particles from each other
- Angelique
- · Replies 1 ·