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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What is the Velocity of an Object on an Inclined Plane with Friction?
- eestep
- · Replies 4 ·
Finding the magnitude of net force
- ScienceGirl90
- · Replies 2 ·
Electron in magnetic field, quick fix
- pleasehelpme6
- · Replies 1 ·
Why Is There Static Friction on a Coin on a Spinning Turntable?
- InvisibleMan1
- · Replies 24 ·
Coefficient of static friction from maximum acceleration before slipping
- return42
- · Replies 1 ·
Diameter of an atom from density
- ombudsmansect
- · Replies 1 ·
Particle dynamics question. Electron in electric field.
- Amahia11
- · Replies 3 ·
Finding the equilibrium force for two 4.6 N forces at 40°
- preluderacer
- · Replies 11 ·
10 lb block on inclined plane: acceleration at 45° given constant velocity at 30°
- jamesweston0
- · Replies 12 ·
Why Does the Cosine Term Disappear in the Lorentz Force Calculation?
- Je m'appelle
- · Replies 3 ·
Moment of inertia of rectangular plate rotating about axis parallel to width
- paddlewheel99
- · Replies 3 ·
Spring constant for a solid not in equilibrium in a fluid
- Twoism
- · Replies 2 ·
Baseball throw with one bounce vs 45-degree throw
- TN17
- · Replies 2 ·
Polar coordinates and kinematics
- Telemachus
- · Replies 1 ·
Frictional Forces: Find Max F for No Slippage of m1 on m2
- zhaos
- · Replies 3 ·
Proton re-emergence time in magnetic field calculation error
- ahazen
- · Replies 2 ·
Position of an object in time and force
- preluderacer
- · Replies 5 ·
Terminal Velocity given Time at which velocity is .5Vt
- xslc
- · Replies 6 ·
Find how hollow a rock is given its density and its weight in water
- season89
- · Replies 3 ·
Projectile Motion problem. very lost.
- Chip90
- · Replies 24 ·
Finding displacement and angle from radar position data
- High_Voltage
- · Replies 2 ·
Sliding down a ramp against friction force
- Vader07
- · Replies 3 ·
What Should the Banking Angle Be to Prevent a Car from Sliding?
- AHinkle
- · Replies 5 ·
Temperature of water at different temperature mixed together
- semc
- · Replies 2 ·
Automobile drives into a brick wall
- bmoore509
- · Replies 3 ·
Finding the relative velocity of Jane with respect to Mary
- yang09
- · Replies 1 ·
How Do You Calculate Work Done by a Variable Force from a Graph?
- rafaelpitta
- · Replies 1 ·
Finding tension between blocks B and C in pulley system
- JoshBuntu
- · Replies 16 ·
Block on an incline adjacent to a wall
- jaded18
- · Replies 11 ·
What is the Maximum Height Attained by an Object Launched from Earth's Surface?
- GOsuchessplayer
- · Replies 1 ·
Length of a pendulum based on speed and max angle
- lu22
- · Replies 10 ·
Resisting Force and Stopping Time of a Bullet in Wood
- Brianh1
- · Replies 1 ·
Solving Elastic Collisions Involving 3 Blocks
- lu22
- · Replies 1 ·
3 blocks no friction forces question
- cmwilli
- · Replies 5 ·
Point charge hanging in electric field: find charge with given E, m, angle
- danvazb
- · Replies 2 ·
Inelastic collision blocks of wood
- nickname
- · Replies 3 ·
Finding acceleration from distance and fall time
- nukeman
- · Replies 14 ·
How to Find Equivalent Capacitance?
- aimee3
- · Replies 1 ·
Vector Mag: When Does u+w > mag(u)+mag(w)?
- KatlynEdwards
- · Replies 1 ·
What is the maximum tension in the makeshift rope for a jail escape attempt?
- 777lov3r
- · Replies 5 ·
What Is the Acceleration of a Car Traveling Left with Changing Speeds?
- ginteeg
- · Replies 1 ·
Calculating Sound Energy Emission from a Point Source with Constant Power Output
- FsLiu
- · Replies 14 ·
Deriving an equation vs memorizing a formula
- cdotter
- · Replies 3 ·
Are you positive about part 2 in Helicopter Kinetics and Motion
- DarPodo
- · Replies 2 ·
Accident Reconstruction; Work-Energy Problem
- uchicago2012
- · Replies 5 ·
Need an explanation on how to do a question applying Newtons Laws
- Asimans
- · Replies 1 ·
Kinematics Collision Question: Find Minimum Separation and Sketch
- P-Illiterate
- · Replies 1 ·
Calculating Moment About Axis: A Chiropractor's Procedure
- pinksunbeam
- · Replies 1 ·
Terminal velocity with quadratic drag force
- preluderacer
- · Replies 2 ·
What are some biodegradable egg drop project ideas?
- Madd069
- · Replies 18 ·
What is the magnitude and direction of the resulting force?
- .bonbon.
- · Replies 1 ·
What Is the Maximum Height of a Ball Thrown at 20m/s and 30 Degrees for 3.0s?
- PhysicsAdvice
- · Replies 1 ·
Find net force, given velocity?
- JettyZ
- · Replies 1 ·
How do I find acceleration of two block.
- cheater1
- · Replies 20 ·
What are the i, j, k unit vectors in displacement vectors?
- moondawg
- · Replies 2 ·
Rugby Player Problem: Solve for Time to Tackle
- badsniper
- · Replies 2 ·
How Do You Calculate the Tension in Cables Supporting a Suspended Loudspeaker?
- Allura
- · Replies 3 ·
Can One Ounce of Gold Really Be Pulled into a 50km Wire?
- kassib
- · Replies 3 ·
Calculating electrons emitted question.
- ConfusedElect
- · Replies 4 ·
Does the acceleration of free fall take air resistance into account?
- Andy21
- · Replies 3 ·
What is the charge on the capacitor being charged up by a 25 V battery
- ahazen
- · Replies 1 ·
How can the current density and magnetic field affect Earth's total current?
- juggalomike
- · Replies 4 ·
Potential energy for magnetic fields
- jaejoon89
- · Replies 2 ·
The change in velocity betwen two points
- Sleve123
- · Replies 6 ·
Find out the correct pressure difference if the level of the liquid
- zorro
- · Replies 3 ·
What Determines the Upward Movement of a 1m^3 Balloon in Water?
- luckis11
- · Replies 33 ·
Would a car go straight after hitting ice during a circular turn?
- preluderacer
- · Replies 1 ·
Speed - the bus jump in the movie
- Phalon88
- · Replies 2 ·
What factors determine the acceleration of vehicles in a head-on collision?
- Jonathan Teas
- · Replies 2 ·
Finding two forces with sum 24N and resultant at right angles to smaller force
- kalupahana
- · Replies 2 ·
2 dimensional motion - calculate magnitude of acceleration
- new^2^physics
- · Replies 1 ·
2 dimensional motion - calculate particles position
- new^2^physics
- · Replies 1 ·
Friction and tension between two stacked bricks
- Atx
- · Replies 5 ·
Change in gravitational potential energy of a satellite
- fcb
- · Replies 6 ·
How Do You Calculate Velocity in a Horizontal Slingshot Setup?
- J.live
- · Replies 14 ·
Sorting fresh and boiled eggs on an inclined plane
- no183
- · Replies 2 ·
How high does a rocket go with a constant acceleration of 25m/s^2?
- lolbits
- · Replies 2 ·
Finding equilibrium angles for two rope tensions
- Matt1234
- · Replies 2 ·
Finding Lanch Angle (without initial velocity)
- peterbishop
- · Replies 3 ·
Force on a Current-carrying loop
- ninjarawr
- · Replies 5 ·
How can friction act at a rolling tire if the contact point is stationary?
- issacnewton
- · Replies 30 ·
Drawing Out Superman's Velocity Problem
- mathphysicnb
- · Replies 1 ·
Angle between reflected and incident rays in plane mirror reflection
- Perpendicular
- · Replies 1 ·
Can an armor-piercing shell pierce two steel plates in succession?
- Die4Physics
- · Replies 1 ·
What is the Correct Center of Mass Calculation for a Man and a Boat?
- mohabitar
- · Replies 5 ·
Ranking materials in order of their refraction index.
- vf_one
- · Replies 1 ·
Sound Waves Conceptual Question
- ca2010
- · Replies 1 ·
Hot-air balloon (kinematics question)
- Sean1218
- · Replies 5 ·
Trajectory, Wind Resistance, and Acceleration
- Soaring Crane
- · Replies 5 ·
Proving a plane Ax + By + Cz = 0 is perpendicular to vector A i + B j + C k
- madah12
- · Replies 1 ·
Why is initial velocity positive or negative when throwing an egg downward?
- Schrodes2011
- · Replies 1 ·
A falling flower pot (kinematics question), just need slight correction
- Sean1218
- · Replies 1 ·
What is the third force needed for equilibrium?
- preluderacer
- · Replies 5 ·
A child trying to catch an ice-cream truck (kinematics question)
- Sean1218
- · Replies 2 ·
Kinematics question (uniformly accelerated linear motion)
- Sean1218
- · Replies 7 ·
Grade 11 Physics: Projectile Motion Calculations
- brain123
- · Replies 4 ·
My rounding is off - can anyone try this?
- jaytm2291
- · Replies 10 ·
Is Tension in a Tow Chain Equal to the Weight of the Car?
- preluderacer
- · Replies 2 ·
Finding acceleration from distance and fall time measurements
- nukeman
- · Replies 3 ·
Need help with 7-question physics assignment due Friday
- nicknaq
- · Replies 3 ·