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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Finding Velocity After Sliding with Work-Energy Equations
- cheerspens
- · Replies 1 ·
Collision between ball and stick
- juggalomike
- · Replies 3 ·
Does the Bottom Hinge's Vertical Force on a Door Produce Torque?
- hks118
- · Replies 2 ·
Vertical mass less spring problem
- squintyeyes
- · Replies 1 ·
Ultrasound vs Normal Waves for Sea Depth Measurement: Why Ultrasound is Superior
- jsmith613
- · Replies 1 ·
Metal plate leaning against a wall
- darkspy123
- · Replies 3 ·
What is the Speed of the Package at Maximum Height?
- mybrohshi5
- · Replies 33 ·
What is the relationship between 1D potential and simple harmonic motion?
- User_Unknown9
- · Replies 1 ·
Maximum Velocity of a Boat in a Race
- beatlemaniac
- · Replies 1 ·
Gravitational potential energy of satellite
- juggalomike
- · Replies 1 ·
Calculating the Minimum Proton Speed Near a Lead Nucleus
- Gurneet
- · Replies 1 ·
How can I tell when an electronic config is in ground or excited state?
- leemarvin
- · Replies 1 ·
Simple Pendulum Time and Velocity Calculations: Equations and Solutions
- IB1
- · Replies 1 ·
What is the packing fraction for a body centred packed structure?
- eilishryan
- · Replies 1 ·
The mean value of (1/r^2) given a normalised wavefunction
- michael2k100
- · Replies 7 ·
Torque, angular momentum, moment of inertia
- Johnny0290
- · Replies 7 ·
Magnetic Field Due to Two Parallel Wires
- sonutulsiani
- · Replies 3 ·
Calculating Work on an Inclined Plane
- cheerspens
- · Replies 1 ·
Conceptual center of mass question - No calculations
- crafty2288
- · Replies 4 ·
Binary Star Explosion: Calculating Total Energy and Period
- bon
- · Replies 3 ·
What is the actual focal length?
- argarg03
- · Replies 9 ·
Formula for water pressure, flow and power
- cens
- · Replies 2 ·
Why does current flowing backward through a battery create a higher potential?
- lha08
- · Replies 3 ·
Find Difference in Satellite Distances After Impulse
- bon
- · Replies 13 ·
Pressure at pump outlet for benzene flow in 240 m pipe
- MTRX
- · Replies 2 ·
How to Solve Pulley and Normal Force Problems Using Newton's Laws
- starprincess
- · Replies 6 ·
Torque on rotating cylinder with hanging masses
- sonic91
- · Replies 2 ·
Calculate Mechanical Energy & Heights of a Falling Stone - Physics Homework Help
- Roro312
- · Replies 9 ·
Spring Constant and Oscillations -
- mparsons06
- · Replies 11 ·
Three blocks and a mass system with applied force
- Knight526806
- · Replies 1 ·
How Do You Calculate Absolute Pressure at a Depth Using Bubble Size Changes?
- J0hnnyD
- · Replies 2 ·
Power, the rate of energy transfer
- dbigtheory
- · Replies 21 ·
Calculating Mass of Iron and Aluminum in a Metal Object Using Thermal Energy
- dbigtheory
- · Replies 1 ·
Removing heat energy from a block of ice
- hover
- · Replies 7 ·
Calculating the Number of Gas Molecules in an Excellent Laboratory Vacuum
- noname1
- · Replies 4 ·
Find the final temperature of the sample.
- noname1
- · Replies 2 ·
Electrostatic potential energy in a circuit with and without a battery
- utdiscant
- · Replies 1 ·
Solving a Physics Problem: Impulse and Momentum
- pat666
- · Replies 1 ·
Problem in magnetic effects of current
- logearav
- · Replies 4 ·
Special relativity: find speed and kinetic energy
- k77i
- · Replies 4 ·
Direction cosines and bond angles in a diamond lattice
- FRANCLI
- · Replies 1 ·
What is the wavelength of the emitted light in the infinite well problem?
- Kawakaze
- · Replies 4 ·
Finding Req in parallel circuit
- Aeden
- · Replies 3 ·
Simplify the following circuit (all impedances)
- dphysics
- · Replies 3 ·
Speed and Momentum of a Beta Particle
- ihearyourecho
- · Replies 1 ·
Find the size of force acting on the body
- sese
- · Replies 2 ·
Uncertainty principle and bound states?
- michael2k100
- · Replies 1 ·
Kinmatic question involving differential equation
- gaobo9109
- · Replies 1 ·
Find Time to Reach Max Height for Kinematic Q w/ g,k,u Variables
- gaobo9109
- · Replies 2 ·
Energy to Increase Orbital Radius
- omegas
- · Replies 1 ·
Boy stepping off skateboard: which momentum statement is incorrect?
- Procrastinate
- · Replies 1 ·
Pendulum and spring oscillation
- smhippe
- · Replies 1 ·
Simple rotational mechanics problem
- crybllrd
- · Replies 3 ·
Unspecified gas, preasure known, looking for number density.
- Buttons840
- · Replies 2 ·
Solving Schrodinger Equation for Y(x)=A Sin (x)=0
- ghostbuster25
- · Replies 7 ·
Using Magnetic Field to get Radius
- red99
- · Replies 1 ·
Period of Rotating Pendulum: 2.2m, 9.0cm, 4.5kg
- juggalomike
- · Replies 3 ·
Force of Gravity/Friction Question
- studen527
- · Replies 2 ·
Opposing spring oscillation with mass
- smhippe
- · Replies 1 ·
Is the triangle with vertices (40,85), (15,0), (-40,35) a right triangle?
- lampshader
- · Replies 6 ·
Solving F = MA Problem: Confirm Solution & Extend Problem
- Knight526806
- · Replies 2 ·
Solve New F=MA Problem - Attachment Included
- Knight526806
- · Replies 3 ·
Finding pulley mass in Atwood's machine using energy conservation
- Tanahagae
- · Replies 2 ·
How to Calculate Acceleration and Force in a Car
- cheerspens
- · Replies 3 ·
EM: accelerated charge and E field
- ladki6
- · Replies 2 ·
Tension in the strings (with diagram)
- AlphaRock
- · Replies 1 ·
Efficiency of Ramp Pulling: Friction vs. No Friction
- cheerspens
- · Replies 3 ·
Oil film thickness for strong reflection of green light
- Terraist
- · Replies 1 ·
How High Are the Stairs If Climbed in 25 Seconds with 95 Watts of Power?
- Brittykitty
- · Replies 1 ·
How Do You Calculate Frictional Forces on a Car on an Incline?
- bbhoh44
- · Replies 2 ·
Finding friction patch length to reduce speed to 1/3 on flat ground
- Felicity26
- · Replies 10 ·
Sketching the Potential of a Spherical Shell with Uniformly Distributed Charge
- singinglupine
- · Replies 9 ·
General physics electrostatics problem
- fionashrek
- · Replies 1 ·
Differential Amplifier: Calculating Common Mode Gain and Rejection Ratio
- yg2010
- · Replies 2 ·
Thermal Efficiency of a power plant
- jalamb90
- · Replies 1 ·
Can you see marks on a water tank wall from the opposite side?
- raindrops
- · Replies 2 ·
How do I calculate torque on a pulley with hanging weights?
- Hockeystar
- · Replies 2 ·
How to resolve weight in uniform circular motion
- sphyics
- · Replies 7 ·
Period of a Pendulum and moment of inertia
- Quincy
- · Replies 5 ·
How to Calculate Velocity and Distance for Block on Slab with Friction
- Beckaze
- · Replies 2 ·
Questions regarding applied waves?
- zell_D
- · Replies 2 ·
Calculating the Resulting Speed of a Student on a Turntable
- ernay
- · Replies 1 ·
Thermo - Heat Engines, Heat Pumps
- brendan714
- · Replies 10 ·
What input work is required for this machine
- hisbul
- · Replies 1 ·
How Do You Calculate Carrier Concentration in Doped Silicon?
- Master J
- · Replies 11 ·
How to Calculate dS/dU for a Solid in Thermal Equilibrium?
- sarahaha288
- · Replies 2 ·
Two masses, string, and hole: deriving r'² = A - B/r² - gr
- bon
- · Replies 11 ·
Basic Forces- Just seeking a simple answer
- Punch
- · Replies 3 ·
Figuring out the kinetic energy of springs with mass
- gunnerone
- · Replies 1 ·
Simple resistance question on D.C. Circuits
- Punch
- · Replies 13 ·
Speedboat Acceleration: 3.2m/s in 2.05 secs
- mimi_123
- · Replies 1 ·
What is the change in kinetic energy of the cart during the move
- gaobo9109
- · Replies 5 ·
Electric Force on Point Charges
- joemama69
- · Replies 7 ·
How Does a Multi-Dielectric Parallel Plate Capacitor Calculate Its Capacitance?
- meth_90
- · Replies 1 ·
How Does Mercury Expansion in a Thermometer Relate to Temperature Changes?
- Je m'appelle
- · Replies 3 ·
Linear Momentum - Person on a Plank on a frictionless surface
- crafty2288
- · Replies 5 ·
Find the equation of motion for a fixed particle in a wave
- TheTourist
- · Replies 1 ·
Finding the Coefficient of Static Friction for a Cube
- COKEDUDE
- · Replies 1 ·
Where Did I Go Wrong in This Conservation of Energy Problem?
- gaobo9109
- · Replies 2 ·