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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Observing Single Electron Diffraction
- atavistic
- · Replies 4 ·
Projectile fired through horizontal tunnel: minimum velocity and angle
- cojaro
- · Replies 16 ·
Physics: Projectile Motion with different starting and ending heights?
- 015734
- · Replies 3 ·
Voltage, current, and power wasted
- cuttlefish
- · Replies 3 ·
Electrostatic potential and electric fields
- secret5437
- · Replies 4 ·
How to find vertical comp. of velcocity?
- baba1
- · Replies 1 ·
EM wave inducing current in a wire at different angles
- MEAHH
- · Replies 1 ·
What is the Average Speed of a Boat Across a Lake?
- Makaroon
- · Replies 11 ·
How Much Kinetic Energy is Lost in a Bullet-Block Collision?
- roeb
- · Replies 1 ·
How Is Force Calculated Between Charged Parallel Plates?
- Hannisch
- · Replies 2 ·
Electric field from 3 point charges at rectangle corners
- bluntz48
- · Replies 1 ·
Direction of the force on the ramp due to the sliding block
- phy112-sp
- · Replies 7 ·
I'm having trouble visualizing the orientation of the equipotential surfaces.
- gunitsoldier9
- · Replies 10 ·
Gm1m2 / d2 = kq1q2 / d2What is the value of Q to maintain the present orbit?
- Littlemin5
- · Replies 1 ·
Solving Force and Rest with a Skater on Ice
- enantiomer1
- · Replies 1 ·
How Much Charge Is Needed to Levitate a Car Using Static Electricity?
- toasted
- · Replies 5 ·
Basic Electricity (what i should know but don't)
- chaz699
- · Replies 1 ·
Calculating the time it takes for something to fall over long distances
- hover
- · Replies 5 ·
What Is the Equivalent Capacitance of Capacitors in Series and Parallel?
- v0id19
- · Replies 1 ·
Tungsten bulb power, bulb brightness in series and parallel, iron energy consumption
- flabber
- · Replies 2 ·
Kinetics Question (spent over 7 hours on this)
- bengalkitties
- · Replies 3 ·
How Long Does It Take for Speed to Halve with Non-Constant Acceleration?
- miggitymark
- · Replies 4 ·
Explaining rocket thrust, Newton's cradle, and collision forces
- score2go
- · Replies 2 ·
Finding hight of an inclined palne with its lengh and a force
- RockenNS42
- · Replies 2 ·
Understanding Velocity and Acceleration in Uniform Circular Motion
- physicsman7
- · Replies 2 ·
Volume over Number of Particles.
- splitringtail
- · Replies 2 ·
Mass of weight needed to keep pressure cooker sealed at 120°C
- derekjn
- · Replies 5 ·
Understanding 1/cos(x) with x=pi/4: Simplifying to Root 2
- intenzxboi
- · Replies 2 ·
Magnitude of acceleration of a stationary mass
- peaceandlove
- · Replies 3 ·
Cross product of two vectors in the xy plane
- queenspublic
- · Replies 10 ·
Maximum and Minimum Forces for Elevator Design
- Hotsuma
- · Replies 5 ·
Verifying gravity from our lab.
- agnosticjoe
- · Replies 4 ·
How to Calculate the Height of a Falling Object Using Basic Physics Equations?
- papa_smurf493
- · Replies 30 ·
Calculating Motor Mass for Desired Torque
- melo_chip
- · Replies 1 ·
Solving for Unknown Vectors in Vector Addition Equations
- queenspublic
- · Replies 2 ·
Time at which a projectile reaches a certain height
- enantiomer1
- · Replies 4 ·
What is the result of combining vectors A and B?
- queenspublic
- · Replies 4 ·
A Square Loop of Wire falling through a Magnetic Field
- TFM
- · Replies 32 ·
Vectors in unit-vector notation
- queenspublic
- · Replies 1 ·
Terminal velocity for big objects
- cleverfield
- · Replies 4 ·
Significant Digits: Estimating Next Digit
- redwing1
- · Replies 1 ·
Derivation of equation for sliding object
- hitek0007
- · Replies 1 ·
Electric Field/Gauss' law of cylinder and shell
- ultrapowerpie
- · Replies 2 ·
Distance between two points of differing phase
- AdamNailor
- · Replies 2 ·
Scaling laws for bronze statue and Moore's Law power dissipation
- redwing1
- · Replies 6 ·
Accelerations of Boxes on a Horizontal Surface
- sci-doo
- · Replies 3 ·
Rock wedged in tire tread dynamics
- bodaciousllam
- · Replies 3 ·
Electric field of half a spherical shell
- asi123
- · Replies 1 ·
Adiabatic Processes for an Ideal Gas
- splitringtail
- · Replies 2 ·
Find Extra Force & Power to Keep Conveyor Belt Moving
- ritwik06
- · Replies 6 ·
What is the speed with kinetic energy
- kadavis2010
- · Replies 4 ·
Relativistic Expression for Energy of Quantum State of Harmonic Oscillator?
- ephedyn
- · Replies 2 ·
Find Total Force & Direction on Sliding Block | Inclined Plane Help
- collegegirl13
- · Replies 4 ·
How Much Water is in a Cumulus Cloud?
- dhago07
- · Replies 1 ·
Satelilite in orbite about arctic circle
- gigglin_horse
- · Replies 1 ·
Falling object - relating distance interval to time interval
- jemerlia
- · Replies 5 ·
Standing waves and length of tube
- aliaze1
- · Replies 9 ·
Fnet=ma 2008 #14: Kinetic Energy Increase with Angular Velocity
- dtl42
- · Replies 4 ·
Calculating Distance from Mirror for Virtual Image Height of 1.145 cm
- I_LuV_FiZiX
- · Replies 1 ·
Argh - De Broglie and the wave equation
- B1ueguy1
- · Replies 6 ·
Spring Compression in Accelerating Elevator
- Braindead90
- · Replies 2 ·
Relative Motion - River/Boat problem
- Kosmos77
- · Replies 1 ·
How Strong is the Force Between Two Positive Charges?
- corey7
- · Replies 3 ·
Incline, two boxes, determine acceleration
- cleverfield
- · Replies 11 ·
Water volume and mass in a cumulus cloud 2.9 km tall
- dhago07
- · Replies 13 ·
How Is Momentum Conserved in Different Collision Scenarios?
- Nano
- · Replies 1 ·
Tangential Speed of Passenger on 10m Radius Ferris Wheel
- gigglin_horse
- · Replies 2 ·
One Dimensional Kinematics: Force
- TG3
- · Replies 3 ·
Normal Force Exerted: Min. Req'd for 63kg Climber
- 312213
- · Replies 3 ·
Waves and Sounds - speed of a bat
- FrenchAtticus
- · Replies 1 ·
What Speed Keeps the Cylinder Stationary in the Puck-Cylinder System?
- raptik
- · Replies 3 ·
New to forum and having major problems with couple problems
- ssman
- · Replies 4 ·
What is potential difference uniform electric field
- Blitzp22
- · Replies 1 ·
Dropped Tennis Ball Homework: Speed & Force Calculation
- mrnastytime
- · Replies 1 ·
Finding gravity on a star/planet
- gigglin_horse
- · Replies 10 ·
Finding coefficient of friction for 21 kg box on 38° incline
- 312213
- · Replies 2 ·
Raindrop reaching 63% terminal velocity with drag force
- cleverfield
- · Replies 2 ·
Electron between charged plates
- Melawrghk
- · Replies 5 ·
Electric field from H2O nuclear charges at point P
- skidkid
- · Replies 1 ·
What Does \(\frac{d\vec{x}}{dt}\) Represent in Vector Calculus?
- Jordash
- · Replies 1 ·
Calculate Centrifugal Force to Simulate Earth's Gravity
- sebring741
- · Replies 1 ·
What Speed Would the Arrow Leave the Bow if Force Were Doubled?
- Amber430
- · Replies 9 ·
Work required for truck up a hill problem
- gigglin_horse
- · Replies 2 ·
Integrating dP/dr over the Sun
- CaptainEvil
- · Replies 1 ·
What Is the Minimum Volume of Ice Needed to Support a Person on a Lake?
- LunarJK
- · Replies 4 ·
Rotational motion and center of a car
- gigglin_horse
- · Replies 1 ·
How Does Tension Vary Along a Heavy Rope with Applied Force?
- spacecadette
- · Replies 10 ·
Physics Problems ? (particle acceleration)
- JJ91284
- · Replies 5 ·
What is magnetism, diamagnetism and paramagnetism?
- Stalkerfishy
- · Replies 1 ·
Why do radar microwaves scatter off conducting objects?
- hi i'm noodle
- · Replies 3 ·
Finding Electric Field using Gauss's Law for a Solid Ball with Charge Density
- Seraph404
- · Replies 8 ·
Concave mirror with 3.30x magnification and 40 cm radius
- I_LuV_FiZiX
- · Replies 1 ·
Now it remains to be shown that A = B. I'll leave that to you.
- Nitric
- · Replies 12 ·
Does Light Focus When Passing Through Converging and Diverging Lenses?
- gingerelle
- · Replies 1 ·
Elimination on velocities and angles
- chemic_23
- · Replies 2 ·
Longitudinal Waves: Compression or Rarefaction at Displacement 0?
- duckandcover
- · Replies 2 ·
Is superimposing three velocities possible?
- Nitric
- · Replies 2 ·
How to Calculate Electric Flux Through a Tilted Box?
- zooboodoo
- · Replies 1 ·
Ball thrown horizontally from 20 m cliff striking ground at 45 degrees
- vivekfan
- · Replies 11 ·
Explanation for the discrepancy in points for part A and B.
- Dreamshot
- · Replies 2 ·