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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Determining the force for culculating a ski tow's perf. on a slope
- Helicobacter
- · Replies 2 ·
Electromagnetism: Turning effect of coil
- lingling
- · Replies 1 ·
Mechanical Energy Homework: Zero Planet w/ 10kg Probe Launch
- norcal
- · Replies 3 ·
How Does Refraction Affect Apparent Depth in a Layered Liquid System?
- larkinfan11
- · Replies 3 ·
How Do Sound Waves Travel Through Different Media?
- candyq27
- · Replies 6 ·
Is My Calculation for a Microwave's Turntable Spin Correct?
- unique_pavadrin
- · Replies 4 ·
Uniform Circular Motion -Explanatory questions
- Hydroxide
- · Replies 2 ·
Mechanical Energy: Solving for Speed of Ball at Lowest Point
- norcal
- · Replies 2 ·
What does amp-hours rating tell about battery energy, power, charge or current?
- Mattius_
- · Replies 1 ·
Calculating Baseball Swing Force
- Physics1
- · Replies 5 ·
How Does Current Direction Affect Magnetic Field Between Parallel Wires?
- cy19861126
- · Replies 1 ·
What is the coefficient of kinetic friction for a box pulled by a 10N force?
- future_vet
- · Replies 7 ·
Wave speed from trough-to-crest distance and crest count
- tdk
- · Replies 6 ·
Understanding Newton's Laws of Motion
- Solidmozza
- · Replies 1 ·
Internal resistance ratio problem
- killdevil
- · Replies 8 ·
How Is Charge Density Calculated Between Two Altitudes?
- brunie
- · Replies 6 ·
More quick work and energy questions
- future_vet
- · Replies 7 ·
Can Work Occur Without Motion and What Defines Negative Potential Energy?
- future_vet
- · Replies 4 ·
Kinetic Energy and height unknown
- future_vet
- · Replies 13 ·
Change in area due to relative motion
- Amith2006
- · Replies 6 ·
How Is Work Calculated in Isothermal Compression of Air?
- icnhoj
- · Replies 1 ·
What is the initial capacitance of a computer keyboard key?
- stylez03
- · Replies 3 ·
RMS speed ratio of 235UF6 to 238UF6
- Kites
- · Replies 1 ·
Solving Vector Identity: {phi (grad phi)} X (n^)dS=0
- Kolahal Bhattacharya
- · Replies 3 ·
Designing a portable nichrome wire heater for car lighters
- saleen_s7
- · Replies 1 ·
Calculating Tension in a String Swung in a Horizontal Circle
- danago
- · Replies 4 ·
Inspiring Physics Projects for Last Year High Schoolers
- Spectra
- · Replies 7 ·
Will the column of water flow to the lower level with equal pressure?
- Idea04
- · Replies 2 ·
What is the energy of this electron
- tup
- · Replies 6 ·
Walking on a canoe, finding its mass.
- PhyzicsOfHockey
- · Replies 4 ·
How Does the Pappus-Guldinus Theorem Apply to Calculating Volume?
- suspenc3
- · Replies 6 ·
Force, Mass, and Acceleration Questions
- Kelt
- · Replies 5 ·
How Much Energy Enters Your Eye from a Light Bulb?
- deenuh20
- · Replies 13 ·
Current and the Right Hand Rule
- Soaring Crane
- · Replies 2 ·
Understanding Lorentz Force and Its Applications
- jst81161
- · Replies 2 ·
Why's Applied Force Plotted On Vertical Axis?
- BayernBlues
- · Replies 2 ·
Gaussian Surface Derivations
- nealh149
- · Replies 7 ·
Center of Gravity - Product Safety Question
- sarah1234
- · Replies 7 ·
Solution to Capacitor Problem: q=12uC, V=4V
- 21385
- · Replies 4 ·
Magnetic Field Intensity and Point Charges
- Soaring Crane
- · Replies 1 ·
How Do You Calculate the Equivalent Capacitance in a Complex Circuit?
- holymoly
- · Replies 1 ·
Centroid calculation slightly off from textbook answer
- suspenc3
- · Replies 2 ·
Calculating Charge Density of Styrofoam and Plastic Sheet
- brunie
- · Replies 13 ·
Hooke's Law, Force Constant Question
- BayernBlues
- · Replies 3 ·
Finding Electric Energy Density
- stylez03
- · Replies 7 ·
Vector Calculus: Solving a Solenoidal Field Problem
- Kolahal Bhattacharya
- · Replies 3 ·
Flux through surface of half a cone
- physgirl
- · Replies 2 ·
Four Newton's laws and friction problems
- MCS
- · Replies 3 ·
What Are the Correct Answers to These Multiple Choice Physics Questions?
- MCS
- · Replies 8 ·
Inclined planes, mass' effect on final velocity
- Clef
- · Replies 2 ·
Solve Rigid Body Problem: Uniform Disc Mass m Falls from Theta=60°
- Bucky
- · Replies 1 ·
Does air resistance affect kinetic vs potential energy in a falling ball?
- future_vet
- · Replies 4 ·
Box Acceleration and Velocity: Solving for Vertical Motion
- future_vet
- · Replies 2 ·
Electric field near a charged square plate using Gauss' law
- yanimated
- · Replies 3 ·
Is 0.05 cm-1 equivalent to 5 m-1 in measurement?
- kingyof2thejring
- · Replies 2 ·
Calculating the Energy Required to Launch a Satellite into Orbit
- dkgojackets
- · Replies 5 ·
Person pushing a 16kg cart at constant velocity with friction
- tahyus
- · Replies 5 ·
Rearranging Formula to Find 't'
- spritchs
- · Replies 6 ·
What Is the Maximum Radius for a Car to Stay on a Loop-the-Loop Track at 4m/s?
- tahyus
- · Replies 12 ·
Water slide height from projectile motion after leaving
- tahyus
- · Replies 1 ·
Does a tennis ball hit at 20 m/s clear a 1 m net 7 m away?
- crazy_life
- · Replies 1 ·
Solving Momentum and Kinetic Energy for 2 Blocks on Frictionless Track
- ieatmangosnaked
- · Replies 3 ·
Cross product basics with unit vectors
- jst81161
- · Replies 1 ·
How Does the Ideal Gas Law Apply to a Cylinder's Thermodynamic Cycle?
- Div
- · Replies 2 ·
Calculating Electrical Energy and Power Costs
- AznBoi
- · Replies 6 ·
What is the magnitude of the upward force of friction
- kumar_23
- · Replies 56 ·
What are the variables in the deflection equation for a cantilever beam?
- jhwatts
- · Replies 3 ·
How Far Will an Object Slide Due to Friction?
- mongojerry36
- · Replies 9 ·
Why is the Pressure in a U-shaped Tube Constant?
- e(ho0n3
- · Replies 21 ·
Force and work done on a crate pushed at an angle
- eagles42
- · Replies 7 ·
How Does Torque Affect Motion in Physics Problems?
- killerinstinct
- · Replies 2 ·
Newton's Second Law in NON-inertial frame of reference
- Spiewgels
- · Replies 1 ·
Calculate Wavelength from two sinusoidal waves
- Elizabeth
- · Replies 7 ·
A problem invovling Force, Impulse, Velocity and Acceleration
- flumbie
- · Replies 2 ·
Calculating Forces on a Frame Member Supported by a Cable and Pulley System
- Bradracer18
- · Replies 7 ·
What is the correct angle for the given 2D kinematics problem?
- deserthobo
- · Replies 11 ·
The doppler effect and EM waves
- Dart82
- · Replies 4 ·
Find total resistance between A and B
- jesuslovesu
- · Replies 2 ·
How Does Mass and Force Affect Motion and Weight?
- Noob69
- · Replies 3 ·
How does the angle of the handle affect the frictional force on the mower?
- fishert16
- · Replies 4 ·
String tension and angular acceleration in rotating mass problem
- physicsworker1
- · Replies 2 ·
Sun energy transfer into a mousetrap car spring
- TwistedConcepts
- · Replies 3 ·
Solving a Confusing Problem: Truck, Rock & Tire
- o_0curiousraych
- · Replies 12 ·
Aussie NSW Year 12 Projectile Motion Question.
- f3nr15
- · Replies 1 ·
Momentum Problem: Jack and Jill on a Crate
- robbondo
- · Replies 1 ·
How do you convert rev/sec to a linear velocity?
- koreo07
- · Replies 1 ·
Gravitational potential energy on top of apartment building
- Idea04
- · Replies 1 ·
Linear Acceleration of a Bicycle with Changing Wheel Rotation
- fruitl00p
- · Replies 4 ·
Final Velocity of Electron Accelerated from Rest Through Potential Difference
- Gyroscope
- · Replies 7 ·
Explain why the divergence of each of the functions must be zero
- brad sue
- · Replies 1 ·
Gragging a board across surfaces with different frictions
- ph123
- · Replies 6 ·
Find Maximum Angle: Ball Hitting Pendulum String
- robbondo
- · Replies 3 ·
Power required to operate a ski tow
- ph123
- · Replies 3 ·
Electric Car Help: Calculating Horsepower Needed
- gamer6218
- · Replies 3 ·
Solve Light Polarization: Angles of Transmission Axis
- Dart82
- · Replies 2 ·
Force due to wind and rolling friction on van
- fruitl00p
- · Replies 4 ·
Electrostatics/Electroscope Correct Answers Feedback
- pugfug90
- · Replies 3 ·
What Is the Difference Between lbf and lbs in Terms of Newtons?
- bennychris2002
- · Replies 7 ·
Why does a floating balloon move backward when a car brakes?
- 21385
- · Replies 2 ·
Mean square radius uniformed charged sphere
- malawi_glenn
- · Replies 0 ·