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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Force at center of cube due to four charges of equal mag.
- Physics2341313
- · Replies 3 ·
[Statics - Torques] Determining the tension of a string
- erickbq
- · Replies 1 ·
Simplification of force and couple system
- goldfish9776
- · Replies 6 ·
At what speed must I throw vertically an object.
- astrololo
- · Replies 36 ·
Momentum Eigenfunction Addition
- Safinaz
- · Replies 3 ·
Spherical raindrop, mass, radius, and time
- Raquel Aduriz
- · Replies 8 ·
I in finding where two people will meet again
- Blockade
- · Replies 15 ·
How to chose the angle and initial speed to hit two objects
- Makonia
- · Replies 5 ·
Two charged beads on a plastic ring
- kspabo
- · Replies 2 ·
Calculating Constant Speed of a Train with Variable Acceleration
- astrololo
- · Replies 3 ·
Thermodynamics resistance temperature scale
- jeremyskate
- · Replies 5 ·
Why use cos(60°) not sin(60°) for moment arm of a vertical force
- David Donald
- · Replies 1 ·
Mechanics. Vectors. Find magnitude and direction of forces
- moenste
- · Replies 2 ·
Problem on conservation of momentum and collision
- Titan97
- · Replies 33 ·
Maximum height of a projectile using kinematic equations
- Viraam
- · Replies 20 ·
Electric Field of Concentric Spheres and Opposite Charges
- idkwhatimdoing
- · Replies 4 ·
The cheetah can reach a top speed of 114 km/h (71 mi/h)
- carrollk9
- · Replies 2 ·
Acceleration of a ball thrown vertically upwards
- Janiceleong26
- · Replies 6 ·
Collision w/ zero Energy Loss not making sense
- Ocata
- · Replies 7 ·
Why is the voltage across this parallel circuit positive?
- s3a
- · Replies 9 ·
Diameter in AU of a black hole with given mass?
- PMelol22
- · Replies 3 ·
Boat A Wins by 40 Minutes: Solving a Boat Race Across a 70-km Lake
- carrollk9
- · Replies 1 ·
Net force on charge from two equal charges on a line
- Potatochip911
- · Replies 4 ·
Significant figures in (72.4 m)×cos(58°)
- trsnd
- · Replies 3 ·
Detector moving toward charged ring - rate of change of V
- Alan I
- · Replies 5 ·
Pile Driver, 10000kg, 10m/s, strikes pile w/ what force?
- Ocata
- · Replies 4 ·
How do I solve these problems (kinematics)
- carrollk9
- · Replies 8 ·
Circular Motion with Tension and Finding Angle
- Physkat
- · Replies 4 ·
How Does Water Flow Rate Change Over Time in a Draining Cylinder?
- unsung-hero
- · Replies 1 ·
Potential Difference of Inverted Hemispherical Shell
- Jonathan K
- · Replies 1 ·
What is the depth of the weight below the beam?
- Shivansh Mathur
- · Replies 6 ·
Find the initial acceleration of the block
- Vibhor
- · Replies 40 ·
Conservation of angular momentum invariance
- Melian
- · Replies 1 ·
Finding hinge reactions and cable tension on a hinged door
- aaroon
- · Replies 7 ·
Reliability of many valued electronic signals.
- mooncrater
- · Replies 4 ·
Identifying limit of puck height
- Winums2
- · Replies 1 ·
What Frequency Equalizes Peak Voltages in an RC Circuit?
- Amcote
- · Replies 3 ·
What is the force required to keep two blocks in equilibrium
- Alison A.
- · Replies 18 ·
Scalar product using right hand rule ?
- goldfish9776
- · Replies 2 ·
Average Velocity of a Car on a North-South Trip - Simple Velocity Question
- Mr Davis 97
- · Replies 4 ·
Calculating Loss of Mechanical Energy in Bouncing Ball Experiment
- amanda.ka
- · Replies 9 ·
Potential at surface of merged water droplet from two charged drops
- Antonius
- · Replies 2 ·
Decibel question, not sure where I went wrong.
- TheKShaugh
- · Replies 3 ·
Conservation of Momentum, 2D, Unknown Final Velocities
- Ocata
- · Replies 8 ·
Calculating the Depth of a Well and Velocity of a Rock Using Equations of Motion
- Miri McPherson
- · Replies 3 ·
Why is the solution for the nonlinear resistor problem hard to understand?
- s3a
- · Replies 11 ·
Why is the force component 30cos30 in this problem?
- goldfish9776
- · Replies 12 ·
Finding magnitude and directional sense of resultant moment
- ozzolins
- · Replies 6 ·
Not really understanding electric potential
- physiccool78
- · Replies 10 ·
Proton falling through tiny hole on charged shell
- Alan I
- · Replies 1 ·
Potential on merging water droplets
- Alan I
- · Replies 2 ·
Projectile fired up an incline for maximum horizontal distance
- zippyjibby
- · Replies 1 ·
Relation between Electric Potential and Electric Field
- Alan I
- · Replies 4 ·
Finding some quantities of particles moving relativistically
- ForTheGreater
- · Replies 4 ·
Finding the Horizontal Force on a Bracket Supported by a Single Screw
- Zynoakib
- · Replies 7 ·
What angle should the bird head?
- Junjou
- · Replies 5 ·
Sound Intensity: Reduce by 35 dB, Factor Calculation
- Faraz
- · Replies 4 ·
Probability for particle in infinite square well
- pinkfishegg
- · Replies 5 ·
Kinetic Energy of uranium particles
- Manh
- · Replies 8 ·
Calculating reversible adiabatic expansion
- Azivegu
- · Replies 3 ·
Work on a charge inside a Variable Electric Field
- Alan I
- · Replies 3 ·
Finding flux through surface where E field is function of x
- Jen2114
- · Replies 4 ·
How Accurate Are These Physics Experiment Measurements?
- rjbrivera
- · Replies 3 ·
Flux through a sphere due to a charge outside of it
- xSpartanCx
- · Replies 4 ·
Understanding Moment Vectors and Positive Rotation Direction
- goldfish9776
- · Replies 5 ·
Three-pulley system and coefficients of friction
- andyfeynman
- · Replies 7 ·
What is the acceleration of the train.
- astrololo
- · Replies 25 ·
Distance between equipotential surfaces
- Alan I
- · Replies 2 ·
Momentum and Kinetic Energy after an Inelastic Collision
- Manh
- · Replies 3 ·
Velocity after a totally inelastic collision
- Manh
- · Replies 3 ·
Rotational Motion - Centripetal force
- Ch3m_
- · Replies 11 ·
Calcularing area vector using line integral
- SquidgyGuff
- · Replies 7 ·
What does it mean to say that an object decelerates?
- wein7145
- · Replies 6 ·
Force on a charge obtained from electric potential
- Alan I
- · Replies 2 ·
What is the heading of the plane with respect to the ground?
- Amrator
- · Replies 8 ·
Questions Regarding the Photoelectric Effect
- RJLiberator
- · Replies 11 ·
Velocity always aimed at rectilinearly moving particle
- ELiT.Maxwell
- · Replies 1 ·
Force magnitude from acceleration vs. mass graph?
- lawsonj
- · Replies 5 ·
Finding magnitude of electrostatic force
- transmini
- · Replies 6 ·
Maximum angular velocity of a DC motor powered by a charged capacitor
- Jumponright
- · Replies 5 ·
Why use travel time instead of impact time in ideal gas law derivation
- Andy123
- · Replies 2 ·
Optics Question -- small glass spheres to couple to fiber optic cables
- izelkay
- · Replies 11 ·
Why is there a pressure difference on submerged objects?
- Janiceleong26
- · Replies 5 ·
Stoke's and Gauss's Theorum in proving div(curlA)=0
- SquidgyGuff
- · Replies 2 ·
Electric potential energy and work
- prophyasker
- · Replies 1 ·
Two spheres with a conducting wire
- Abdulayoub
- · Replies 3 ·
I am lost, how do I find tension of a rope given A and M?
- Dante
- · Replies 4 ·
Solving for Time: Piano Falling Down Ramp
- blee2x2
- · Replies 2 ·
Rubber duckie dropped from ascending balloon
- icurryx3
- · Replies 11 ·
Charge Distribution in Nonconducting Shell System
- kilnvzol
- · Replies 6 ·
How do significant digits work in physics calculations?
- Jayak
- · Replies 2 ·
Equation of motion and Calculus
- Jamie S
- · Replies 13 ·
Specific heat/equilibrium in three component system (Thermo)
- RadiumBlue
- · Replies 4 ·
How do you find tension and friction on an inclined plane
- Leah200
- · Replies 31 ·
Manually integrating to find flux through hemisphere
- yango_17
- · Replies 8 ·
How Much Velocity Can a Spacecraft Gain by Shooting Xenon Ions?
- sander2798
- · Replies 2 ·
Solving 2D Force Systems for Calculating Equilibrium
- Oxford365
- · Replies 12 ·
Speed of Train B: Solving Physics Homework
- Starsfall
- · Replies 6 ·
How Fast Was the Car Going Before Braking?
- r26h
- · Replies 7 ·
Force Problem - How do i get the inclination?
- rose123456789
- · Replies 15 ·