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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Ranking the force of point charges
- macaco
- · Replies 3 ·
What is the capacitance of the system?
- exitwound
- · Replies 4 ·
Tension from Incline Plane: Only Measured in Horizontal Direction?
- yougene
- · Replies 3 ·
Should the driver make a run for it at an intersection with a yellow light?
- Pindle
- · Replies 1 ·
Magnitude and Direction of Charged Particles
- dmullin4
- · Replies 3 ·
Solving a Volcanic Eruption Problem with Constant Acceleration Equations
- martyk
- · Replies 1 ·
Finding Spring Constants After Cutting a Spring
- stpmmaths
- · Replies 3 ·
Minimum distance to avoid a collision
- MechaMZ
- · Replies 3 ·
How Fast Are Proton and Antiproton Moving Towards Each Other?
- beecher
- · Replies 2 ·
Direction of a vector (help with part c)
- salaam
- · Replies 7 ·
What is the missing formula for projectiles launched at an angle?
- xxpbdudexx
- · Replies 6 ·
Solve Newton's Second Law: Find Angle of Elevation w/ 1.86cm Blocks
- oceanflavored
- · Replies 3 ·
Why Is My Vector Calculation Incorrect?
- sowmit
- · Replies 3 ·
Calculating Total Time for an Inclined Plane Motion Problem
- anubis01
- · Replies 7 ·
Question about the magnitude and direction of an electric field.
- peaceinmideas
- · Replies 6 ·
Trouble Solving: Police Car & Stolen Truck
- karkrash
- · Replies 2 ·
When is cosα a x component or y component in a problem?
- pillar
- · Replies 1 ·
How to Solve Physics Free Fall Problems
- Leo34005
- · Replies 2 ·
Does the Correspondence Principle Confirm Equal Probability in Quantum Systems?
- nargle
- · Replies 2 ·
Thermal Stress (Thermodynamics)
- Luongo
- · Replies 3 ·
Finding the Location of a Projectile After 3 Seconds
- Want to learn
- · Replies 3 ·
Electric Potential and Potential Difference
- ktobrien
- · Replies 2 ·
I with this physics question help please and fast? ?
- Leo34005
- · Replies 1 ·
Projectile Motion: Given Horizontal Distance Travelled and Time Taken
- zenythz
- · Replies 1 ·
Calculating Time and Velocity in a Projectile Motion Problem
- Rubix
- · Replies 6 ·
Force Vector Directed Along A Line
- camino
- · Replies 1 ·
Spacetime Invariance and Lorentz Equations
- LUphysics
- · Replies 1 ·
Deriving the 4th equation of motion
- danksnaks
- · Replies 1 ·
Finding the Angle Between Vectors A & B
- Rail24
- · Replies 2 ·
Find the normal force and magnitude of acceleration.
- sonutulsiani
- · Replies 4 ·
Finding this displacement on a v/t graph
- jeffc93
- · Replies 1 ·
Struggling with Kinematics Homework?
- dagitt
- · Replies 1 ·
Solving Tension in 2 Strings - T2 & T3
- sonutulsiani
- · Replies 12 ·
Throwing a ball upward on top of a building, find height of building
- ncwalke2
- · Replies 1 ·
How do I set up these problems?
- LocalYocal
- · Replies 1 ·
How Do You Calculate the Second Vector in a Vector Displacement Problem?
- singingblonde
- · Replies 1 ·
Acceleration When Pulled By Elastic Cord
- mill4864
- · Replies 1 ·
Why Does Running in the Rain Get You More Wet?
- fattydq
- · Replies 1 ·
How do negative charges accelerate in an electric field?
- Anden
- · Replies 4 ·
Harmonic Motion with Electricity
- nothilaryy
- · Replies 1 ·
What Is the Relative Uncertainty in the Square Root of a Measured Distance?
- unequal
- · Replies 4 ·
What is the solution to the tricky pendulum question on page 6?
- Chewy0087
- · Replies 1 ·
What is the Resistive Force of Air on a Baseball Pitch?
- MechaMZ
- · Replies 11 ·
Superposition of electric fields from uniform charge density
- jamdr
- · Replies 4 ·
Please need someone to check this soon
- Ion1776
- · Replies 2 ·
Relativistic Mechanics (momentum)
- Cmertin
- · Replies 4 ·
Differential equations particle motion
- philnow
- · Replies 12 ·
Women's Volleyball: Net Height & Court Limits
- linds1369
- · Replies 3 ·
Secrets of the Microwave Oven: Grid Dimensions & Polar Molecules
- guilesar
- · Replies 1 ·
How High Does a Rocket Go if It Accelerates at 79.0 m/s² for 1.90 Seconds?
- harrism1
- · Replies 3 ·
Force on projected object at its highest point. What is the net force?
- peterpam89
- · Replies 3 ·
Determining the Minimum Force to Push a Crate
- semc
- · Replies 3 ·
What Happens to the Speed and Proximity of Two Charged Metal Spheres in Motion?
- Digdug12
- · Replies 1 ·
Is negative acceleration always related to a decrease in speed?
- Loppyfoot
- · Replies 3 ·
Friction problem with banked curve given static friction coefficient
- zenith12
- · Replies 3 ·
IB Extended Essay in Physics, focusing on Fibre optics, any pointers?
- TheJoe
- · Replies 1 ·
Why is the scale reading 397 N when the elevator is slowing down?
- MechaMZ
- · Replies 2 ·
Finding Range of Object Shot at 40° Angle
- Want to learn
- · Replies 4 ·
A box sliding down a incline plane
- semc
- · Replies 5 ·
Calculating Time for an Object to Fall in One Dimension
- ShamTheCandle
- · Replies 4 ·
Object sliding up/down with a angular speed
- MechaMZ
- · Replies 6 ·
Finding the Magnitude of Vector Sum from Components
- Want to learn
- · Replies 7 ·
Can You Derive F = gamma^3*ma from Newton's Second Law?
- beecher
- · Replies 2 ·
Calculating Passenger Speed Relative to Shore: A Multi-Step Problem
- StephanieF19
- · Replies 1 ·
Electric Field due to two points
- Digdug12
- · Replies 1 ·
Newton's Laws with Friction: Two Blocks
- melv14
- · Replies 3 ·
What are the two angles of a successful field goal kick?
- StephanieF19
- · Replies 10 ·
Acceleration of a horizontal system with friction
- bolivartech
- · Replies 6 ·
Help solving Fluid Force problem
- Qbit42
- · Replies 4 ·
Help w/ simple dimensional analysis
- CocoonOHorror
- · Replies 6 ·
What is the Magnitude of the Electric Field to Just Miss the Upper Plate?
- Digdug12
- · Replies 1 ·
How Far Will a Race Car Travel After Running Out of Gas?
- irNewton
- · Replies 2 ·
Reference Frame Question: How come wind relative to boat doesn't matter?
- yougene
- · Replies 2 ·
Electric field 0.1mm above charged plate.
- megr_ftw
- · Replies 1 ·
Calculating Angular Speed for Proposed Space Station
- Fihzix
- · Replies 2 ·
Mass of silver to cover a 2.0 x10^2 cm2 object with .20mm thick layer
- geoti8
- · Replies 2 ·
Motion: Solving problems using equations
- tryintosurviv
- · Replies 4 ·
How Do You Calculate Net Resistance in a Circuit?
- DharmaSC815
- · Replies 1 ·
Help With Vector Problems: Find Horizontal Velocity & Forces
- jampop
- · Replies 1 ·
Two blocks sliding on top of each other
- pharoh123
- · Replies 1 ·
Physics Help, Could someone check my work test coming up soon
- Ion1776
- · Replies 9 ·
How Do You Convert dB to W/m^2 for a Test?
- tiger1
- · Replies 1 ·
What is the absolute uncertainty in your estimate of the total mass?
- simond
- · Replies 1 ·
Solving the Mystery of the Pigeon-Seeking Fall: Acceleration Calculations
- GuitarHero
- · Replies 3 ·
Coulombs Law of two metal balls
- jayz618
- · Replies 24 ·
Which Variables Are Intensive and Which Are Extensive?
- kiwikahuna
- · Replies 1 ·
Nonuniform Circular Motion-Find time given r, a-sub-t, V-sub-0
- 6maverick6
- · Replies 2 ·
Simple Earth Circumference Question
- DaveMaron
- · Replies 2 ·
How Much Does a Baseball Drop When Thrown Horizontally at 46.8 m/s Over 15.7 m?
- triplel777
- · Replies 2 ·
Find Meters to Fill Copper Cylinder with 8.60lbs of Covelite
- geoti8
- · Replies 9 ·
Finding the force of a person given mass.
- mooney82
- · Replies 8 ·
Finding the Initial Pressure of A Balloon
- chunkytuna21
- · Replies 9 ·
Displacement under varying acceleration
- MechaMZ
- · Replies 3 ·
How Much Energy Is Required to Transport a 1kg Object from Earth to the Moon?
- Villhelm
- · Replies 14 ·
Sum of Forces in x- and y-directions
- jjli
- · Replies 1 ·
Motion in one dimension problem
- vv_ramirez259
- · Replies 1 ·
Is It Possible to Solve This Vector Problem with Given Information?
- Bymp
- · Replies 8 ·
Kinematics in 1D: Determining Velocity After 0.5s
- karkrash
- · Replies 1 ·
Motion in one dimension physics problem
- vv_ramirez259
- · Replies 1 ·
What Height of Water in a Long Arm Risks Popping the Seal?
- Tater
- · Replies 1 ·