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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Solving for Force & Fly-Off Time on Rotating Mass in Cup
- thoughtclaw
- · Replies 2 ·
What is the Net Force on a System with Multiple Objects and Inclined Planes?
- Nemean
- · Replies 24 ·
How do I solve for 't' in the platinum wire resistance problem?
- ibysaiyan
- · Replies 1 ·
Forces and state of equilibrium
- sdoi
- · Replies 7 ·
Calculating emf from angular velocity
- Masafi
- · Replies 4 ·
Cannonball fired at 30° from 40 m height striking ground at 1.2v₀
- sweet_girl123
- · Replies 3 ·
Bead sliding on a rotating straight rigid wire.
- Aerostd
- · Replies 2 ·
How Does Time Dilation Affect Clocks on the Concorde?
- mindarson
- · Replies 1 ·
Center of mass question (man on a boat)
- ddtozone
- · Replies 2 ·
Calculate the uncertainty on the values of m
- blueyellow
- · Replies 1 ·
Is There Any Net Force Acting on an Athlete Moving at Constant Velocity?
- bionut
- · Replies 3 ·
Finding acceleration of 7 kg block hanging from 11 kg block on table
- trivk96
- · Replies 7 ·
Thermodynamics - Entropy and Temperature
- lifeonfire
- · Replies 1 ·
Numerical approach to the spring force of a bowstring (Not Hooke's Law)
- Verdict
- · Replies 1 ·
Finding image position for refracted light through a bubble
- Shackleford
- · Replies 6 ·
Solving nodal equations to find node voltages
- naivy
- · Replies 2 ·
Calculating Speed of Rotating Disks and Hoops Using Uniform Solid Disk Equations
- aborder
- · Replies 1 ·
Physics resistance force question (Newton's Laws)
- modis15
- · Replies 7 ·
Equilibrium using angular momentum
- alco19357
- · Replies 14 ·
Period of rotation for a giant swing with 5.00m cable at 30°
- GRice40
- · Replies 19 ·
Calibrated 2% Hydrogen sample gas accuracy
- onereddog
- · Replies 3 ·
Calculating Car's Fall into Ocean from Cliff
- Adam900
- · Replies 6 ·
Conservation of energy and tether ball
- gg4bella
- · Replies 1 ·
Calculate Maximum Velocity of Girl on Swing
- bionut
- · Replies 36 ·
How Far Will a Pizza Box Slide Due to Friction?
- phizics09
- · Replies 3 ·
Why Are Moments Calculated Differently for Force Components in Statics?
- eurekameh
- · Replies 3 ·
Why Does Doubling the Force More Than Double the Acceleration?
- Quark Itself
- · Replies 9 ·
Angular speed; horizontal circle
- deezy
- · Replies 10 ·
Forces and Vectors adding to zero
- sdoi
- · Replies 7 ·
Explaining internal and external forces in conservation of momentum
- jono240
- · Replies 4 ·
Projectile Motion and Impact: Solving for Elevation Angle and Time Interval
- Jacobpm64
- · Replies 5 ·
What Is the Magnitude of the Acceleration of the Mass?
- omgitsmonica
- · Replies 2 ·
Torque is applied to a steering wheel of an automobile
- bionut
- · Replies 1 ·
What Is the Maximum Height Reached by a Falling Camera from a Blimp?
- joehoy41
- · Replies 9 ·
Using F=kvx in order to describe x as a function of t
- acedeno
- · Replies 1 ·
Electric Energy Potential and Capacitors
- neshepard
- · Replies 2 ·
Electric potential due to 3 charge
- walkerob08
- · Replies 1 ·
Electric Field at a Point Near a Charged Rectangular Plate
- Harrisonized
- · Replies 1 ·
What is the relative position, velocity, and acceleration of car B to car A?
- sweet_girl123
- · Replies 1 ·
Moment of inertia of a music triangle
- zheng89120
- · Replies 2 ·
Determine the distance each object will move
- patrilu5
- · Replies 3 ·
Calculating Maximum Speed and Height of a Child on a Trampoline
- happysmiles36
- · Replies 4 ·
Electric flux through a hole drilled in a sphere
- twisted079
- · Replies 13 ·
Why does moving from point A to point B give a potential difference of 1V?
- pyroknife
- · Replies 10 ·
Rearranging equations of accelerated motion
- jjesiee
- · Replies 7 ·
Thermodynamics, the ideal gas equation and temperature change
- Physics_S16
- · Replies 9 ·
Constant Motion Vs. Acceleration
- jessicayin22
- · Replies 2 ·
Find car's acceleration based on a die's angle
- PhysicslyDumb
- · Replies 2 ·
Calculating Air Resistance in Falling Objects
- axlg38
- · Replies 13 ·
Calculate Vertical Velocity of 50kg Diver from 15m Board
- bionut
- · Replies 2 ·
What Force is Needed to Maintain Constant Velocity?
- bionut
- · Replies 2 ·
Pulley problem that is most likely easier for you than for me.
- psome51
- · Replies 4 ·
Sign of j component in magnetic force calculation with F=qv×B
- charlies1902
- · Replies 2 ·
Finding Total Charge in Sphere w/ δ(r) Function
- iejedijuerijr
- · Replies 1 ·
Is the velocity of a pendulum at the height of its swing 0?
- goomer
- · Replies 1 ·
Elevator Problem For General College Physics
- Windowmaker
- · Replies 11 ·
How do you calculate the velocity of a pendulum at its lowest point?
- goomer
- · Replies 2 ·
How to find magnitude of centripetal acceleration and of net force?
- starplaya
- · Replies 4 ·
Friction Problem - block on an incline (serway)
- aero_zeppelin
- · Replies 5 ·
How Much Tension Can the Gastrocnemius Muscle Exert?
- valeriex0x
- · Replies 1 ·
Distance Question Homework: Find D & H
- Maty
- · Replies 19 ·
Finding Electric Field of Charged Dielectric Sphere
- khfrekek1992
- · Replies 12 ·
Finding Electric Force between 2 parallel plates
- RobotUnicorn
- · Replies 1 ·
Linear programming model for mineral extraction from two ore types
- ama111
- · Replies 1 ·
Mercury rotating the earth in an empty region of the galaxy
- Verdict
- · Replies 1 ·
Motion into direction ship problem
- sweet_girl123
- · Replies 5 ·
Solving for Boyle Temperature in MATLAB
- nkk2008
- · Replies 2 ·
Tension in two ropes at 85 degrees holding a 70 kg person
- PhysicslyDumb
- · Replies 2 ·
Calculating Electric Flux through a Cube with Given E-field in Region of Space
- OneTooMany
- · Replies 2 ·
Projectile Motion Given only angle and distance?
- APSurvivor
- · Replies 1 ·
Two balls colliding: one dropped, one thrown upward
- NoPhysicsGenius
- · Replies 3 ·
Newton's 2nd Law on light fixture
- jburt
- · Replies 5 ·
Which direction is the average acceleration going?
- iamjohnny56
- · Replies 2 ·
Dog's displacement with two vector legs
- nadong2dong
- · Replies 1 ·
Diode Forward Bias characteristics
- logearav
- · Replies 2 ·
Solving Two Body Problems - The Physics Classroom
- RiskX
- · Replies 3 ·
Block B on block A connected to hanging block C by string
- ecneicS
- · Replies 14 ·
Why are the three resistors at the top in series in this RC circuit?
- pyroknife
- · Replies 5 ·
How Do You Calculate the Forces Exerted by Each Man Carrying a Ladder?
- ninjatogo
- · Replies 1 ·
Finding force exerted by a rope and ratio of tension:weight
- iamjohnny56
- · Replies 1 ·
Cable Tension Calculation Confirmation
- chris_0101
- · Replies 1 ·
Boat crossing river problem using reference frames
- leroyjenkens
- · Replies 1 ·
Newton's Second Law of Motion: Fnet=ma
- phizics09
- · Replies 3 ·
Can the Percentage of Energy Lost to Friction Be Negative?
- lab-rat
- · Replies 1 ·
How Does Tension in the String Compare to the Force on Block A?
- Jimmy1234
- · Replies 4 ·
Deriving the Equation for Period of Simple Pendulum? Is my attempt correct?
- amd123
- · Replies 2 ·
Temperature of the water in Fell Beck?
- Mvb
- · Replies 2 ·
What is the velocity of a car that falls off a cliff?
- Maty
- · Replies 1 ·
Calculating Earth's Orbital Speed: Gravitational Field Equations
- xxabr
- · Replies 2 ·
Distance between m0 and m1 blue diffraction peaks
- mimi.janson
- · Replies 24 ·
Block pulled on horizontal surface -w/friction-
- bdragons
- · Replies 4 ·
2D Relative Velocity, Two Planes
- JKLS
- · Replies 4 ·
Find velocity of third particle from nuclear decay with momentum conservation
- Oatmeal11
- · Replies 1 ·
Hooke's Law. Does this spring
- valeriex0x
- · Replies 4 ·
Problem with last step of SHM derivation
- funcosed
- · Replies 2 ·
Calculating the spring constant involving energy
- rbailey5
- · Replies 4 ·
Physics Edexcel Specimen question
- jsmith613
- · Replies 4 ·
Homemade Compound Microscope Problem
- molip790
- · Replies 2 ·
Millikan's oil drop experiment direction
- logearav
- · Replies 4 ·