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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Calculating Car Acceleration on a 1.2 Meter Hill in 2 Seconds
- steve986
- · Replies 4 ·
How Do Tension and Distance Affect Pulse Travel Time in a Stretched Cord?
- astro_kat
- · Replies 3 ·
How Do You Calculate Potential Energy for Climbing Mount Everest?
- Twilit_Truth
- · Replies 12 ·
How far does a 29.8 kg crate move when pushed with 188.535 N for 5.88 s?
- klr872
- · Replies 3 ·
Understanding Notation: Deciphering the '<<' Symbol
- Janvier
- · Replies 2 ·
What is the velocity of a transverse wave on a steel cable under tension?
- sheri1987
- · Replies 2 ·
Find the angle theata for a vector
- starchild75
- · Replies 2 ·
Man pulling 100 kg crate with 150 N force
- Discalculiate
- · Replies 2 ·
Pinball launcher spring compressed 6.00 cm on inclined surface
- pc21
- · Replies 2 ·
How does static friction accelerate rolling objects?
- Gear300
- · Replies 4 ·
Man on ice pond and elastic ball collision problems
- Dr physics
- · Replies 42 ·
How to Calculate Average Acceleration in a Fall?
- Melchior25
- · Replies 1 ·
Calculating Sound Travel Time at 20°C
- sheri1987
- · Replies 3 ·
Vector addition in electric field
- hteezy
- · Replies 14 ·
Free fall height question - true/false
- Melchior25
- · Replies 4 ·
Why Don't Electrons Stick to the Anode in a Cathode Ray Tube?
- alan4cult
- · Replies 1 ·
Simple Law of Refraction Problem
- opticaltempest
- · Replies 1 ·
Forces on a ball moving inside a vertical spinning cylinder
- kplooksafterme
- · Replies 8 ·
Calculating Distance Traveled by Light in 19.8 µs
- am08
- · Replies 6 ·
Solving Friction and Incline Problems: Get Answers Here!
- Elvis
- · Replies 1 ·
Solving the Two-Car Train Acceleration Problem
- Elvis
- · Replies 2 ·
Finding the Parallel Component of a Force on an Inclined Surface
- david18
- · Replies 2 ·
Solving the Pendulum Problem: Find Speed at Bottom of Path
- bfr
- · Replies 5 ·
Using Fermat's principle to derive the laws of reflection and refraction
- Morten1988
- · Replies 1 ·
Charge on two equally charged suspended balls with 10cm strings
- angiecakes
- · Replies 2 ·
Bowling, billiards, and egg-catching: which physics matters most?
- koprox
- · Replies 3 ·
Compute Torque About Point A - 3 SF
- Peter2288
- · Replies 4 ·
Understanding Simple Harmonic Motion with Position and Acceleration Graphs
- physks4dumies
- · Replies 5 ·
Newbie here with intro thermodynamics question
- diewlasing
- · Replies 3 ·
Solve Projectile Motion: Baseball Player Hits 180m Home Run with 21.3m Height"
- erico004
- · Replies 5 ·
Calculating Centripetal Acceleration and Force of Earth's Orbit around the Sun
- jgens
- · Replies 2 ·
Which statements about dimensionally correct equations are valid?
- am08
- · Replies 6 ·
Why is member CK a zero-force member with four members at the joint?
- Saladsamurai
- · Replies 2 ·
How Do You Calculate Distance Traveled by a Car Under Constant Acceleration?
- ae4jm
- · Replies 4 ·
Traffic flow rate with vehicle spacing and collision-avoidance systems
- iwonde
- · Replies 2 ·
Force required to level out a bookshelf with weights on it
- missashley
- · Replies 1 ·
Force on a negative charge in an electric field pointing west
- rcmango
- · Replies 3 ·
Elastric Collisions: Shortcut to Solving
- bfr
- · Replies 3 ·
Two objects are dropped from a bridge
- alksjadf
- · Replies 4 ·
How Does a Pendulum's Period Change on the Moon?
- alksjadf
- · Replies 5 ·
How Does a Student's Work Affect Motion on a Scooter?
- mike_302
- · Replies 12 ·
Two stones thrown upward at 48.70 m/s with 4.39 s delay
- matt23721
- · Replies 9 ·
Centripetal Acceleration Question
- alynne08
- · Replies 1 ·
How Do You Calculate Angular Velocity and Centripetal Force for a Swinging Ball?
- Lyphta
- · Replies 2 ·
How Is Temperature Related to Pressure in Adiabatic Expansion of an Ideal Gas?
- nicksauce
- · Replies 1 ·
Solving Differential Problem: Constant Power, Mass Acceleration
- Cate
- · Replies 3 ·
Solve Kinematics: Rocket Accel 1350.0kg, 10.2s, 2210m
- emilinus
- · Replies 5 ·
Power to Horsepower Conversion: Multiply or Divide?
- anonymous820
- · Replies 3 ·
How Far is the Spring Compressed When a Block Slides Down an Incline?
- pc21
- · Replies 6 ·
Mechanics velocity of a bullet questions
- Chris08
- · Replies 10 ·
How Far Does a Laboratory Travel from a Muon's Perspective?
- Winzer
- · Replies 4 ·
Electric Field Between +2 and -3 Charges
- rhodium
- · Replies 2 ·
Normalizing the wave function ψ(x) = -Ae^(σx²/x²)
- rt11
- · Replies 2 ·
Stunt people can fall from great heights
- RachelSSS
- · Replies 21 ·
What experiment proved that light behaves as a wave?
- RachelSSS
- · Replies 2 ·
Increase gas pressure in unchanged volume
- wli
- · Replies 3 ·
Understanding Refractive Index Measurement in Interference Patterns
- Joza
- · Replies 1 ·
Calculating Electric Field of a Square Wire
- anap40
- · Replies 1 ·
Kinetic energy transferred in elastic collision of 7.0g and 19.0g coins
- mortho
- · Replies 6 ·
Ice hockey puck: acceleration, force, momentum and friction
- thebestrc
- · Replies 4 ·
Arrow- Finding the point of impact
- thebestrc
- · Replies 4 ·
Average Retarding Force Problem
- thebestrc
- · Replies 7 ·
What Is the Rate of Change of Momentum When Water Hits a Building?
- CASHMONEY
- · Replies 1 ·
How to Approach an Electro Box Problem with Nonuniform Electric Field?
- ChaosCon343
- · Replies 6 ·
Child on bicycle going down 10 m hill with friction
- petern
- · Replies 2 ·
Translational and Rotational speeds
- hawk320
- · Replies 1 ·
How Much Does Temperature Increase When Drilling Copper?
- petern
- · Replies 1 ·
Specific Gravity and antifreeze
- mcs117
- · Replies 1 ·
Confusing Introductory Electricity Question
- jedjj
- · Replies 3 ·
Calculating Wave Speed for a Jetskier
- sheri1987
- · Replies 3 ·
Finding current and voltage across resistors in a series-parallel circuit
- dumb__x
- · Replies 7 ·
What is the specific heat capacity of the petroleum?
- Hoejer
- · Replies 3 ·
Is y(t-x/v) a Valid Solution to the Wave Equation?
- JayKo
- · Replies 1 ·
Electric Charge Equilibrium Calculation
- Goldenwind
- · Replies 9 ·
Two dimensional motion - intitial velocity?
- erico004
- · Replies 3 ·
I don't know how to do this. It looks simple but
- yaakovwatkins
- · Replies 5 ·
Airbag Inflation Speed Comparison: Physics Test Question Analysis
- john02
- · Replies 3 ·
What is the tension in the cord when two masses pass each other?
- billardkarr
- · Replies 6 ·
What is the minimum stopping distance for a car traveling at a speed of 40 m/s?
- ae4jm
- · Replies 2 ·
How Do You Calculate the Movement of a Hydraulic Lift's Input Cylinder?
- arpitm08
- · Replies 2 ·
Angle Between F1 and F2 Forces on Disk Sliding on Ice
- KMjuniormint5
- · Replies 1 ·
Calculating Speed of a Popsicle Stick in Water After a Bee Lands [SOLVED]
- mortho
- · Replies 7 ·
Kinenatics (NOT cst acceleration)
- emilinus
- · Replies 3 ·
What Is the Ratio of the New Sound Level to the Old?
- ronny45
- · Replies 5 ·
Wind speed for zero scale readings on Titan structure
- nickr917
- · Replies 2 ·
Acceleration Question for a High School Physics Lab
- equanox
- · Replies 1 ·
Diffraction Grating number of slits
- Ginerva123
- · Replies 7 ·
How Does Laminar Flow Resistance Affect Barge Movement in a Canal?
- dinkadink
- · Replies 1 ·
How Do You Calculate Final Speed from Work Done on an Object?
- alexphysics
- · Replies 3 ·
Charged ring and electric field problem
- Ertosthnes
- · Replies 1 ·
How Is the Length of a String Determined from Wave Properties?
- sheri1987
- · Replies 1 ·
Finding velocity when acceleration is a = 5.0t
- B-80
- · Replies 11 ·
What Is the New Rotation Period for Zero Apparent Weight at the Equator?
- muahe
- · Replies 1 ·
Centripetal Force: Moving Away from the Centre
- v_pino
- · Replies 2 ·
Can You Calculate the Stopping Distance at a Traffic Light?
- ice109
- · Replies 4 ·
Optics - What is the magnification of the lens?
- rajiv_putcha
- · Replies 1 ·
Ramp angle for bus to jump 15.24 m gap in Speed
- patv
- · Replies 5 ·
How do I find Q without having a distance r?
- BuBbLeS01
- · Replies 14 ·
I can't figure out what I am doing for nothing Max Torque
- BuBbLeS01
- · Replies 15 ·
Self inductance of a solonoidal coil
- samblue
- · Replies 1 ·