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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Solid rigid equilibrium problem
- rAz:DD
- · Replies 7 ·
Maximum incidence angle for total internal reflection in glass rod
- Jstew
- · Replies 6 ·
Why is a positive charge stable in this bead equilibrium but not negative?
- badgerbadger
- · Replies 3 ·
What is the meaning of the equation Vgrav = constant - 1/2 v2?
- Joe09
- · Replies 2 ·
How to Solve Ampere's Circuital Law Problem with Two Currents?
- shrabastee
- · Replies 2 ·
What Causes Deviation in Acceleration Due to Gravity in a Vacuum?
- mufc4ever
- · Replies 3 ·
The shape of an object affects it's free-fall density
- mufc4ever
- · Replies 1 ·
Acceleration of a Hot Air Balloon
- Shepherd7
- · Replies 1 ·
Calculating Tension in Atwood Machine
- Kalibasa
- · Replies 1 ·
What is the Sum of Torques on a Nut Placed in a Nutcracker with One Lever?
- warfreak131
- · Replies 8 ·
Bullet fired into a block attached to a spring
- offbeatjumi
- · Replies 3 ·
Hydrostatic pressure forces and torque
- Dr_bug
- · Replies 5 ·
What Determines the Natural Period of Vibration in a Pinned Disk System?
- yoamocuy
- · Replies 3 ·
Relativity effects on physical quantities and speed limits
- tony.wu
- · Replies 3 ·
How Does a Boat's Velocity Change When Pointing Upstream?
- Pius
- · Replies 1 ·
How is momentum lost in real life?
- HoneyPancake
- · Replies 2 ·
Calculating Upward Forces on a Rigid Beam Supported by Two Points
- Dark Visitor
- · Replies 6 ·
How Do Mechanical Advantages Affect Accelerations in a Pulley System?
- windwitch
- · Replies 1 ·
Find Thevenin Equivalent at A-B in Circuit
- chronicals
- · Replies 3 ·
How Does Relativity Affect Everyday Scenarios?
- tony.wu
- · Replies 2 ·
Field lines for a proton surrounded by an electron cloud
- physicsnewb7
- · Replies 1 ·
Units of spring constant from Hooke's law and period equation
- NotMySubject!
- · Replies 1 ·
Calculating Time of Flight for a Golf Ball
- shobb
- · Replies 1 ·
[Guidance needed]-Compute the Magnitude and Direction of the Resultant Couple
- Dellis
- · Replies 13 ·
A space craft's speed due to gravitaitonal force
- chrishobo
- · Replies 3 ·
Power from force on particle: P = dW/dt vs P = Fv
- Blkmage
- · Replies 1 ·
[Check for errors]- FREE BODY DIAGRAM for 2 Cylinders.
- Dellis
- · Replies 22 ·
Kinetic Energy of an arrow problem
- HeavyGuy
- · Replies 3 ·
How Do You Calculate the X and Y Components of a Force?
- dinh04
- · Replies 2 ·
Finding the mass of an object with max stress
- walnuts
- · Replies 2 ·
Total resistance of 25k, 15k, 50k, 40k, 20k ohm resistors
- evanbarwise
- · Replies 2 ·
Calculating Coefficients of Friction for a Moving Clock on a Horizontal Floor
- zwill210
- · Replies 1 ·
What Is the Maximum Angular Displacement of a Bob on a Frictionless Rail?
- sunnypic143
- · Replies 1 ·
Force on car with rope pulled perpendicular to a tree 12.2 m away
- Chuck 86
- · Replies 1 ·
How Does a Bug Affect the Spin of a CD?
- dorian_stokes
- · Replies 1 ·
Calculate The Moments about the Point A, [Guidance needed]
- Dellis
- · Replies 46 ·
Calculating Tension and Acceleration in a Pulley System
- waldvocm
- · Replies 15 ·
Tension in a wire with a 10kg mass hung from its midpoint
- kubombelar
- · Replies 1 ·
Man standing on scales in a lift at different accelerations
- davedays
- · Replies 11 ·
What is the mistake in my car's acceleration calculation?
- davedays
- · Replies 9 ·
Does friction affect the applied force in motion on an incline?
- waldvocm
- · Replies 5 ·
Which cart has greater momentum when equal forces push different masses 1 m?
- einsteinette
- · Replies 4 ·
What Is the Correct Power Calculation for a High-Torque DC Motor at 8V?
- chunkytuna21
- · Replies 1 ·
Expansion of a Circular Loop with Perpendicular Forces
- sArGe99
- · Replies 1 ·
Finding the resultant of a distributed force system
- Dellis
- · Replies 56 ·
Why doesn't centripetal force pull particles toward the center?
- semc
- · Replies 8 ·
Dynamics Question/Circular Motion
- Oblivion77
- · Replies 5 ·
Solve Spring & Projectile Homework: Find d
- joemama69
- · Replies 3 ·
Find the acceleration in terms of velocity and displacement
- semc
- · Replies 2 ·
Work and Potentential Energy of a Spring
- JJBrian
- · Replies 2 ·
Find the distance the spring compresses
- joemama69
- · Replies 12 ·
How Does Spring Displacement Affect Block Motion in a Loop-the-Loop?
- joemama69
- · Replies 3 ·
Tension Circular Motion Physics Problem?
- Penguin10
- · Replies 7 ·
Circular Motion -> amusement park ride
- the_EVIL
- · Replies 3 ·
A Nonlinear Second Order Differential Equation Problem
- overmage
- · Replies 6 ·
Center of mass for a cylinder with water
- LMH
- · Replies 19 ·
How Do You Calculate the Energy Stored in a Nonlinear Spring?
- Charanjit
- · Replies 1 ·
Work Done in Two-Dimensional Ramp Push
- kashiark
- · Replies 15 ·
Why is there an extra g in the drag force equation for the tanker problem?
- silentwf
- · Replies 16 ·
Calculating Lens Position for Photographing Objects at Different Distances
- mustang1988
- · Replies 4 ·
Angular and linear acceleration of a falling bucket on a pulley
- ryty
- · Replies 7 ·
Photoelectric Effect and circuits
- Noir
- · Replies 3 ·
Rotational Kinematics of a disc
- mattmannmf
- · Replies 5 ·
Relationship of Power and cross sectional area to electric field
- dsmurphy03
- · Replies 1 ·
Science: Work, Energy, and Power Calculations
- wisehemlock
- · Replies 3 ·
Finding net force and net acceleration
- jack612blue
- · Replies 3 ·
Find Wavelengh - Young't Double Slit
- partly
- · Replies 3 ·
What is the phase constant in simple harmonic motion?
- exparrot
- · Replies 1 ·
Calculating Forces and Potential Energy Changes: Integrals, Curl, and Work
- joemama69
- · Replies 2 ·
Net charge and Electric field of a shell
- tag16
- · Replies 1 ·
Rotational kinetic energy of a flywheel storing 1.1 × 10⁹ J
- agadag
- · Replies 6 ·
Calculating Torque for a LP Turntable
- agadag
- · Replies 16 ·
Rotational / Linear kinematic problem
- greenskyy
- · Replies 2 ·
Calculating Max Compression of Massless Hookslaw Spring
- joemama69
- · Replies 4 ·
Why Does the Calculator Show an Error When Solving for the Angle of Incidence?
- mustang1988
- · Replies 2 ·
Firework Explosion Homework: Determine Unknown Quantity
- shootingrubbe
- · Replies 3 ·
What is the Cross Product and How Can I Understand It?
- lelv89
- · Replies 1 ·
Finding the applied force with theta, A, M, and Mu as givens?
- Potatoe
- · Replies 2 ·
Work Done on Femur: Calculating Force Applied on 435mm Femur
- as76
- · Replies 1 ·
Torque of suspended meter stick
- Punkyc7
- · Replies 1 ·
Bridge circuit - 5 eqns with 5 unknowns
- skierboy
- · Replies 1 ·
Maximum torque and potential energy of a current loop in a magnetic field
- tag16
- · Replies 1 ·
Safe Speed of Frictionless Banked Turn
- bleedblue1234
- · Replies 1 ·
Difference between kinetic energy and momentum
- Jeff5738
- · Replies 3 ·
How to determine the static frictional force?
- shizzledizzle
- · Replies 1 ·
Is the Escape Velocity of a 10,500kg Spaceship from Earth Calculated Correctly?
- kubombelar
- · Replies 1 ·
How Much Force is Needed to Balance a Wheelbarrow Load?
- kathyt.25
- · Replies 1 ·
Elastic and gravitational potential energy, with friction and a box on incline.
- Nihuepana
- · Replies 3 ·
Velocity of a liquid leaving a tank with an angle
- fluidistic
- · Replies 5 ·
Car braking force and stopping distance from 80 km/h
- holezch
- · Replies 13 ·
Direction and magnitude of the current
- zooropa
- · Replies 4 ·
How far does a rolling hoop travel up an incline with known variables?
- therayne
- · Replies 2 ·
Electron moving through various fields
- theowne
- · Replies 10 ·
Finding the displacement of a braking car, with limited variables.
- Symon
- · Replies 4 ·
Force using relativistic momentum
- jk4
- · Replies 3 ·
Finding Tension and Forces in a Cable-Supported Sign System
- agadag
- · Replies 2 ·
Initial momentum calculation for a thrown ball and units
- Underdog_85
- · Replies 2 ·
Difference between focal length and the distance from the lens
- greener1993
- · Replies 1 ·
Flywheel with weight - Rotational Inertia
- Bryon
- · Replies 1 ·
Work, Energy and power questions
- pantiome
- · Replies 1 ·