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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Kinetic Friction with Blocks Need Help.
- Larin
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A man of mass 70kg rides a bicycle of mass 15kg at a steady speed of 4
- Doubell
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Finding Force Given Angle: A Last-Minute Attempt
- iiiiaann
- · Replies 1 ·
Inelastic Collision in Two Dimensions
- jaankney
- · Replies 2 ·
What Are the Top Unresolved Questions in Theoretical Physics Today?
- @220
- · Replies 1 ·
Expressing a complex number as an Exponent
- elsamp123
- · Replies 2 ·
Newton's laws and pulley mass system
- dink87522
- · Replies 4 ·
How can the value of the constant, 1240, in the Duane-Hunt relation be verified?
- saiyaex
- · Replies 1 ·
Solving for Tension with a massless cord
- sarahmichelle
- · Replies 2 ·
Magnitude of Magnetic force on Wire
- Physics Help!
- · Replies 2 ·
Your opinion on how to interpret a problem
- Phys O
- · Replies 3 ·
How Does Air Resistance Affect Spring Compression?
- lefthand
- · Replies 3 ·
Lorentz force and Newton's law
- v_pino
- · Replies 1 ·
Isobaric evaporation, why the temperature must be constant?
- Proust
- · Replies 1 ·
Linear Accelerator Basics: Understanding Drift Tubes and Forces
- jsmith613
- · Replies 7 ·
Cable breaking under its own weight?
- g.licata
- · Replies 15 ·
Equilibrium Question With Ropes and Weight
- itsmeconnie
- · Replies 1 ·
Time to traverse a circular arc?
- g.licata
- · Replies 3 ·
How to graph potential energy for 2 atoms in diatomic molecule w/ 3 unknowns
- collin2012
- · Replies 1 ·
Ion Drift Speed Help Much Needed!
- auk411
- · Replies 3 ·
Distance of a satellite from the earths surface.
- pwphysics101
- · Replies 2 ·
Energy Loss in .444kg Block Sliding Down .888m Ramp
- Timebomb3750
- · Replies 7 ·
Fiding resultant moment about a given point?
- Ancient
- · Replies 8 ·
Where Will a Proton Stop Before Turning Around in a Collision?
- loganblacke
- · Replies 11 ·
Direction of electron flow in solenoid
- BobRoss
- · Replies 14 ·
Calculating Axial Stress for a 16mm Steel Bar Under 25kN Load
- SenseAO
- · Replies 13 ·
Automotive Engineering, Stopping Distance Calculations Help?
- eflickinger
- · Replies 2 ·
Calculating Power for a Vibrating String
- Macvan
- · Replies 1 ·
Solve Nichrome Wire Resistivity Problem
- Sino87
- · Replies 8 ·
Verifying the Velocity of a Roller Coaster Train
- Luke1121
- · Replies 3 ·
Calculating current to produce magnetic field of Earth
- Physics Help!
- · Replies 1 ·
Current, I'm not sure about my solution
- noppawit
- · Replies 3 ·
What force is Block A exerting on Block B?
- rarouch
- · Replies 4 ·
Circular motion and banked curve problem
- bigbk92
- · Replies 10 ·
Loop-the-loop find height object falls out of the loop
- crazycool2
- · Replies 13 ·
What is the correct equation for finding path difference in CD diffraction?
- unscientific
- · Replies 4 ·
Voltmeter Placement in Combined Circuit Problem
- paperdoll
- · Replies 2 ·
Gauss' Law - difficulty understanding this example
- NewtonianAlch
- · Replies 2 ·
Two conducting spheres connected by conducting wire.
- Legendon
- · Replies 2 ·
Rainfall Driven Micro Hydro-Generating System
- cutegaljessy
- · Replies 1 ·
Center Mass Acceleration of 2 bodies on different inclines.
- eginon
- · Replies 1 ·
Work and Kinetic Energy Problem involving friction hw problem, DUE SOON
- emh182
- · Replies 1 ·
How Do You Calculate Forces and Time for a Falling Object?
- playW/Gravity
- · Replies 3 ·
What is the initial velocity of a car after its brakes are applied?
- lockmantican
- · Replies 1 ·
I am having a hard time defining theta in Torque=rFsin(theta)
- dadiezel07
- · Replies 5 ·
Laws of motion question with constraint relations
- capricornpeer
- · Replies 6 ·
Condition of rotational equilibrium in circular motion
- capricornpeer
- · Replies 9 ·
Velocity of a Piston Homework: Find Velocity at t=1/1200min
- djh101
- · Replies 10 ·
How Long Does It Take to Brake a Train from 28.6 m/s to 11.4 m/s?
- lockmantican
- · Replies 3 ·
How Do Dot Product and Cross Product Differ in Vector Multiplication?
- Physics697
- · Replies 2 ·
Centripetal and Tangencial Accelaration
- martcapt
- · Replies 3 ·
An airtight box, having a lid of area 80 cm2, is partially evacuated.
- 1MileCrash
- · Replies 8 ·
What is the Dot Product of a Cutting Tool Under Microprocessor Control?
- burhan619
- · Replies 1 ·
Am I taking the right approach? (Finding final velocity)
- david13579
- · Replies 3 ·
Two masses attached by inextensible string?
- cupcaked
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Why is the error value higher in the average calculation?
- davidp92
- · Replies 1 ·
2 Questions about EM wave propagation
- Cornfused
- · Replies 1 ·
Inelastic collision and velocity of car
- eshock202
- · Replies 1 ·
Two objects have unequal masses, m1>m2; which object has greater momentum?
- DavidAp
- · Replies 1 ·
Calculating Pendulum Drop Distance for 45 Degree Angle - Homework Help
- mitchmcsscm94
- · Replies 3 ·
When does the collision occur and at what height?
- hannam
- · Replies 5 ·
Current density and drift velocity
- auk411
- · Replies 2 ·
What is the angle at which the vine breaks in Tarzan's swinging problem?
- member 217843
- · Replies 1 ·
Angular displacement in radians
- lalahelp
- · Replies 6 ·
What does quantizing a force field mean?
- Smetsnaz
- · Replies 1 ·
Circuits / Switches / Currents -TRUE FALSE QUESTIONS (Pic included)
- niravana21
- · Replies 6 ·
Calculating Capacitance for Pulsed Nitrogen Laser Design: Tips and Tricks
- TrolliOlli
- · Replies 2 ·
Mode of a probability distribution
- indie452
- · Replies 1 ·
Calculating Vertical Forces in a Cantilever Beam Setup
- Ntothaate
- · Replies 2 ·
Horizontal / Vertical Motion, Parabolic Motion
- Mello
- · Replies 5 ·
What Electric Field Magnitude Is Needed to Reverse an Oil Drop's Motion?
- lch20yy
- · Replies 1 ·
How Does the Hall Effect Experiment Work with Semiconductors and Magnets?
- sachin123
- · Replies 1 ·
Conservation of energy of a downhill skier
- spidey12
- · Replies 11 ·
Does a Free Particle Have Potential Energy and Kinetic Energy?
- logearav
- · Replies 2 ·
Pressure and density in swimming.
- haleyy89
- · Replies 2 ·
Simplest Atwood machine question.
- life is maths
- · Replies 4 ·
Problem with half power frequencies ?
- the_kool_guy
- · Replies 8 ·
Question re: difference between Δx and dx
- yoshtov
- · Replies 2 ·
How Does Increasing Engine Power Affect a Funny Car's Track Time?
- napaul
- · Replies 1 ·
Baseball Throws: Energy Conservation & Solutions
- QuarkCharmer
- · Replies 5 ·
Momemnt of inertia, momentum problem
- jehan4141
- · Replies 4 ·
Quantum mechanics, potential barrier
- fluidistic
- · Replies 3 ·
Spherical coordinates vector question
- renlok
- · Replies 1 ·
Solid sphere inside a hollow sphere.
- budder
- · Replies 14 ·
Negative value when calculating the distance
- Anna55
- · Replies 4 ·
Conservation of Momentum involving a space ship blowing up into three pieces
- SherBear
- · Replies 11 ·
What is the speed of a speed skater at the finish line of a downhill course?
- jaxreid
- · Replies 2 ·
Attraction of metal plates and ball
- paperdoll
- · Replies 9 ·
Ice skator throwing gloves to mvoe
- JayHakimi1
- · Replies 13 ·
What happen when a plate of charged capacitor is earthed?
- vkash
- · Replies 6 ·
How is the Force related to Energy
- jegues
- · Replies 1 ·
Compute lorentz force from charge
- tifa8
- · Replies 6 ·
Calculating Voltage at Points A, B & C
- Elec Rug
- · Replies 1 ·
Forces on a rolling body with sliding bodies on it.
- Icelove
- · Replies 3 ·
Circular Motion with static friction of race car
- hannam
- · Replies 2 ·
Calculating Error In Wavelength
- azntoon
- · Replies 2 ·
Work Energy Problem Package released to Spring
- XwyhyX
- · Replies 2 ·
Submarine sonar doppler problem
- leinad0213
- · Replies 1 ·
How Can I Determine the Mass of a Rubber Stopper in a Circular Motion Lab?
- rebekahje
- · Replies 1 ·
So, the question could be: Is the Formula for Specific Angular Momentum Correct?
- Kyle91
- · Replies 1 ·