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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Bathroom scale compression problem
- shrtweez13
- · Replies 2 ·
Perturbation Theory: Calculating Ground State Eigenfunction of Particle in a Box
- danja347
- · Replies 5 ·
How Does the Center of Mass Affect Problem Solving in Physics?
- RoseMary
- · Replies 2 ·
Writing a physics report about hydrochloricacid
- Cr4X
- · Replies 7 ·
How Wide Is the Slit in a Single Slit Diffraction Problem?
- vsage
- · Replies 2 ·
Finding sample size when standard deviation is unknown
- johnnyICON
- · Replies 2 ·
How Is Entropy Calculated for a Heating Copper Block?
- Quipzley
- · Replies 2 ·
How Do You Graph and Calculate the Area of a Region Defined by Two Inequalities?
- TheShapeOfTime
- · Replies 2 ·
Why does buoyant force equal weight when an object floats?
- testman2k
- · Replies 8 ·
Work and Potential/Kinetic Energy
- UrbanXrisis
- · Replies 22 ·
Calculating Work Done on a Slope: Friction and KE
- disruptors
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F(x)=2xe^(-x) what is derivative?
- UrbanXrisis
- · Replies 3 ·
What is the Cost Function for a Long Distance Call?
- gr3gg0r
- · Replies 4 ·
Calculate the magnitude and direction physics
- mariomd
- · Replies 2 ·
What Are the Safety Precautions for Physics Experiments?
- elaine_laine
- · Replies 2 ·
Average value of f(x) = (3x+5)^2 on [1, 2]
- c19dale
- · Replies 2 ·
Two dimensional elastic collision - unequal masses
- Or Ozery
- · Replies 6 ·
Solving a Tower Height with Cosine Law
- uranium_235
- · Replies 3 ·
Initial velocity of the golf ball
- flamegrl
- · Replies 4 ·
Calculate the initial recoil spped of the boat
- HurricaneH
- · Replies 3 ·
Temperature and stress question
- pinky2468
- · Replies 2 ·
How Is Fluid Force Calculated on the Bottom of a Trapezoidal Pool?
- agro
- · Replies 2 ·
Can Altering String Frequencies Enable Travel to Alternate Dimensions?
- Tyrone
- · Replies 2 ·
Trig Substitution with Integration
- Tom McCurdy
- · Replies 24 ·
How Do You Calculate the Maximum Vertical Height on an Inclined Plane?
- Arty
- · Replies 3 ·
Calculating Magnetic Flux: Plane with Rotated Wire and Current of 2.5 A
- hd28cw
- · Replies 2 ·
How do two aligned Polaroids transmit light in Grade 12 physics problems?
- moonpearl
- · Replies 2 ·
How Does Helmholtz Free Energy Determine Maximum Work in a Thermodynamic System?
- Feynmanfan
- · Replies 2 ·
Calculating Distance, Velocity and Gravity
- Kdawg
- · Replies 2 ·
How do I calculate the spring constant with given projectile motion data?
- senseandsanity
- · Replies 2 ·
AP physics first semester review for final exam
- Kimorto
- · Replies 14 ·
Find the magnitudes and directions of the forces F1 and F2
- Frosty_TAW
- · Replies 2 ·
Calculating Upward Acceleration of a Helium-Filled Sphere
- BbyBlue24
- · Replies 14 ·
How Do I Calculate the Inverse of Matrix P and Determine Eigenvectors?
- matrix_204
- · Replies 8 ·
Calculating Force from Parachute on Grade 11 Rocket Project
- umer
- · Replies 8 ·
Finding Uncertainty in $\theta$ with Fixed $\lambda$
- Hypnotoad
- · Replies 2 ·
Analysis on the circular motion
- UrbanXrisis
- · Replies 6 ·
Change in the object's kinetic energy
- UrbanXrisis
- · Replies 8 ·
What are the domain and range of the function y=2(3^x)-1?
- aisha
- · Replies 2 ·
Minimum acceleration for airplane takeoff on 950 m runway
- Kimorto
- · Replies 11 ·
Calculating the Minimum Height for a Steel "Boat" to Float
- quick
- · Replies 2 ·
Motion Near the Earth's Surface
- thomasrules
- · Replies 10 ·
Power Requirements for Taut Rope of 0.165 kg and 3.75 m Length
- Kawrae
- · Replies 2 ·
Tarzan Physics: Solving for Jane's Minimum Swinging Speed with Wind Resistance
- ad333
- · Replies 5 ·
What direction does friction force act on a roller coaster at the top of a loop?
- JimmyRay
- · Replies 2 ·
Rearranging Equations for Solving Complex Algebraic Expressions
- Jeebuz
- · Replies 4 ·
Is -g a primitive root modulo p when g is?
- b0mb0nika
- · Replies 2 ·
Angular Momentum with a Circular Platform
- destrukt
- · Replies 4 ·
Bearing reactions on spinning rotor in rotating space vehicle
- mpm
- · Replies 2 ·
Question regarding resistors and potentiometer
- Sanosuke Sagara
- · Replies 3 ·
What Was the Initial Velocity and Direction of Object m1 Before Collision?
- Jameson
- · Replies 2 ·
Mass on a spring and GravityPain in the neck
- saltrock
- · Replies 9 ·
Tension in string attached to two fixed points
- fluz
- · Replies 2 ·
Grade 12 Electromagnetic Problem
- Dan17
- · Replies 2 ·
How Does a Flywheel Power a Car?
- Drey0287
- · Replies 2 ·
Point on a line and shifting a linear equation left
- vee123
- · Replies 6 ·
Where is the normal force located on a rollercoaster loop?
- JimmyRay
- · Replies 3 ·
Solving Wave Equations: Length, Frequency, Velocity
- SnowOwl18
- · Replies 8 ·
Differential Eqns. (checking an answer + some questions)
- DivGradCurl
- · Replies 5 ·
What are the charge options for baryons?
- NYROCKFAN
- · Replies 7 ·
OUNT OF POWER IN SOUND WAVESThe Intensity of Sound Waves
- Kawrae
- · Replies 6 ·
Rock dropped off cliff, sound heard 3.4 seconds later
- DrZoidberg421
- · Replies 2 ·
Work done by friction and normal force on an inclined crate
- tigerseye
- · Replies 4 ·
Block on smooth 15° incline with 20N gravity force
- thomasrules
- · Replies 2 ·
Final velocity vs. horizontal velocity for a car rolling off a desk
- JWest
- · Replies 2 ·
Finding magnitude and direction of vector sums with A and B
- rsixtyone
- · Replies 4 ·
Solving Complex Eigenvalues w/ Matrix System
- cepheid
- · Replies 5 ·
Finding the characteristic polynomial of a 3×3 symmetric matrix
- cepheid
- · Replies 9 ·
Solving log(base5)36 using log2 and log3
- seiferseph
- · Replies 10 ·
Doppler effect for reflected sound waves from approaching truck
- GingerBread27
- · Replies 2 ·
Hydrogen Atom in n=1 State: Magnetic Field Splitting of .000093 eV"
- Physicsiscool
- · Replies 2 ·
What Determines the Velocity in a Perfectly Inelastic Collision?
- JinSu
- · Replies 4 ·
Understanding Li's Outermost Electron Ionization Energy
- Physicsiscool
- · Replies 2 ·
Energy difference in p-level with 3.4 T magnetic field
- Physicsiscool
- · Replies 2 ·
Finding x-intercepts and local extrema of x^4-4x^3-x^2+12x-2 on TI-83
- jai6638
- · Replies 7 ·
Is Friction Involved in the Work Done on a Book by a Man Walking?
- primarygun
- · Replies 14 ·
Two Questions with Sound Waves
- Kawrae
- · Replies 4 ·
Day of the Week Puzzle: Solving with Modular (Clock) Arithmetic
- Maw615
- · Replies 3 ·
1 kg mass sliding down 30° ramp, across friction surface, compressing spring
- Addie
- · Replies 3 ·
4 kg steel ball accelerated to 62 m/s and experimental train kinematics
- jai6638
- · Replies 6 ·
Calculating Isothermal Expansion Work - 2 Moles Ideal Gas, 380K
- BlackMamba
- · Replies 5 ·
Universal Gravitation - Satellites
- BbyBlue24
- · Replies 3 ·
Effect of water temperature on fish respiration
- aisha
- · Replies 5 ·
Bob and Jack's 1000 km bike race with a flat tire
- aisha
- · Replies 7 ·
Having a brain fart about permutations
- semidevil
- · Replies 5 ·
Are My Calculus Derivatives Correct?
- eeyore81
- · Replies 2 ·
Theorem of maximum work (Thermo)
- Feynmanfan
- · Replies 2 ·
Solving Homework Q: Bullet & Block Impact Velocity
- Afro_Akuma
- · Replies 6 ·
Complicated But Fun Try It See What U Get
- aisha
- · Replies 10 ·
Reciprocal Function Graph: How to Determine the Equation?
- aisha
- · Replies 3 ·
Distance between centers of inscribed circles in adjacent squares
- Chikawakajones
- · Replies 3 ·
Problem with two review problems
- maverick99
- · Replies 6 ·
Why does the amplitude of a loudspeaker cone change with frequency?
- saltrock
- · Replies 3 ·
Spring compression in hydraulic system with rock on output plunger
- foggy
- · Replies 2 ·
Solving Review Questions for Test: Bernoulli's Principle, Buoyancy, and More
- Haftred
- · Replies 2 ·
Checking elastic energy and gravitational potential calculations
- Raza
- · Replies 2 ·
Calculating Projectile Range at a 50 Degree Angle with Given Velocity and Height
- kreil
- · Replies 2 ·
Building a newspaper bridge to hold 3 kg over 1 meter
- ms. confused
- · Replies 2 ·
What is the Impact of a Time-Dependent Force on an Object's Velocity?
- BbyBlue24
- · Replies 8 ·
What Causes Voltage Drops Across an Inductor in an R-L-C Series Circuit?
- Moore65
- · Replies 1 ·