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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Cannon recoil velocity with angled projectile
- Xamfy19
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How Strong is the Electric Field Between Two Charged Plates?
- tandoorichicken
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Pendulum with Water-Filled Sphere: Does it Change the Period?
- Physicsisfun2005
- · Replies 2 ·
Electric field problems literally
- robert135
- · Replies 3 ·
Smiple circuit with just one resistor
- adamg
- · Replies 2 ·
What is the acceleration of a 20kg pail being pulled upward with 300N force?
- celect
- · Replies 2 ·
How to Calculate Velocities and Momentum in an Elastic Collision of Bumper Cars
- Drakon25th
- · Replies 5 ·
Solving Problem 14-54: Force on Box - Rope Tension
- jjiimmyy101
- · Replies 4 ·
Magnetic Force: Work or No Work?
- broegger
- · Replies 2 ·
Calculating the Speed of a Block After Moving Downward: Work and Energy Equation
- jjiimmyy101
- · Replies 3 ·
Proving simple harmonic motion for a floating weighted cylinder
- hbanana
- · Replies 5 ·
What Are the Characteristics and Effects of Electromagnetic Forces and Fields?
- nautica
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Which side of the triangle gives it maximu area?
- MathLete
- · Replies 6 ·
Show that the electric field outside the shell is everywhere
- tandoorichicken
- · Replies 2 ·
What is the field outside the shell?
- tandoorichicken
- · Replies 2 ·
Carnot cycle, heat and monatomic ideal gas
- frznfire219
- · Replies 3 ·
Finding tangent points where a box's sides touch an ellipse
- ACLerok
- · Replies 9 ·
Finding spring constant, frequency, and wavelengths
- mustang
- · Replies 2 ·
Proving a heat engine more efficient than Carnot violates the second law
- jlmac2001
- · Replies 2 ·
Intuitive explanation of gravity outside a sphere?
- jacobfreeze
- · Replies 4 ·
Solving Pressure with Gases in a Diving Bell
- Antepolleo
- · Replies 2 ·
Hat is the value of the second capacitor?
- liljediboi
- · Replies 4 ·
Electric potential of insulating rod
- pattiecake
- · Replies 3 ·
Question concerning rotation etc
- JamesL
- · Replies 3 ·
Measuring the Angle of Refraction in a Triangular Prism Lab
- UrbanXrisis
- · Replies 2 ·
Understanding the Hall Effect: Comparing Germanium and Copper Magnetometers
- Casey_Switzer
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Uniform Magnetic Field Causes Induced Current in Loops
- broegger
- · Replies 6 ·
Electromagnetic induction and EMF in wire
- adamg
- · Replies 7 ·
How Deep is the Well When Humming Establishes Standing Waves?
- hbng02
- · Replies 2 ·
How to find water velocity in a rocket from ejection data
- Db75
- · Replies 3 ·
Mass of H Atom: 1.673x10^-27 kg
- jazzchan
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A bit of direction is needed, if possible
- Calliah
- · Replies 3 ·
Why are roads banked on curves and ramps?
- i speak french
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Proving dy/dx = (a+4b)x^(a+4b-1) for y = x^(2a+3b)/x^(a-b), a and b Integers
- tofu
- · Replies 2 ·
Finding constants k and n in athletic record equation t = kd^n
- JPR
- · Replies 2 ·
Solving for Time and Velocity in Hot-Air Balloon and Ski Jumping Scenarios
- hyen84
- · Replies 6 ·
What Determines the Flight Time of Projectiles with the Same Horizontal Range?
- MaximumTaco
- · Replies 4 ·
Kinetic friction on a moving object
- KingNothing
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Materials for a homemade drum and how tension affects sound
- BrainFreeze
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Minimize tent cost with spherical cap of 150 cu ft
- Muon12
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Calculating Mass Using Newton's Laws
- Beretta
- · Replies 3 ·
Gravitation/circular motion problem
- Moebius
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Why Is Calculating the Speed of the 0.89g Particle Post-Collision Challenging?
- Xamfy19
- · Replies 2 ·
How Do You Calculate Eigenvalues for a 2x2 Symmetric Matrix?
- ilikephysics
- · Replies 3 ·
A man, a boat, and the tractrix formed
- Prodigy Girl
- · Replies 3 ·
Find the final speed of the heavier particle
- Aerospace
- · Replies 6 ·
How to Correctly Apply Newton's Laws to Determine Forces on a Dragged Log?
- Beretta
- · Replies 7 ·
How Far Does a Magnetic Field Extend?
- Xion
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Derive Parallel-Plate Capacitance w/ 2 Dielectrics
- broegger
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Two particles elastic glancing collision, m deflected downward
- Mac13
- · Replies 12 ·
What is the relationship between force and velocity in relativity and calculus?
- samoth
- · Replies 11 ·
Finding angular momentum from mv and radius in a magnetic field
- eku_girl83
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Gas isobaric conditions problem
- moonlit
- · Replies 9 ·
Finding charge, potential, and field of a rod with charge density λ=3x²
- oooride
- · Replies 5 ·
What is the tension required to raise a crate using frictionless pulleys?
- jamdr
- · Replies 4 ·
Drawing and naming molecular shapes: CO3^-2 and SF2
- decibel
- · Replies 8 ·
Data analysis for Advancing Physics AS level coursework
- vezzer
- · Replies 30 ·
Measuring Depth of Water in a Tank: Course Help
- Jay_102
- · Replies 2 ·
Rearranging Formula with t as Subject - Grace
- physicsgirl_nz
- · Replies 4 ·
Why is the centripetal force perpendicular to the path of a circular motion?
- garytse86
- · Replies 4 ·
Inclined Planes and Acceleration
- itinerantphysicist
- · Replies 8 ·
Find Work done by a force field
- wakingrufus
- · Replies 5 ·
Physics teacher is bad, can I teach myself?
- SparkimusPrime
- · Replies 7 ·
Why Do Different Sized Balls Travel the Same Distance in a Physics Experiment?
- amurray
- · Replies 5 ·
Solve Collision Problem: 1300kg Car A vs 1200kg Car B
- Bling
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How do I calculate current, power, and force in a circuit with given variables?
- KingJaymz
- · Replies 2 ·
Electric Fields charge problem
- oooride
- · Replies 6 ·
Force between two alpha particles from decaying Be-8 nucleus
- radmonovic
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What Type of Gas Can Be Used for Isothermal and Adiabatic Energy Storage?
- Claire84
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A proton colliding with a stationary carbon nucleus
- HandcuffedKitty
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How Do You Calculate the Internal Resistance and EMF of a Solar Cell?
- incubusguy88
- · Replies 2 ·
Minimum dart speed for ballistic pendulum to complete circular loop
- freshpulp
- · Replies 2 ·
What is the skier's launch speed?
- hyen84
- · Replies 3 ·
Calculating Free Electron Density in a Metal Wire
- NINHARDCOREFAN
- · Replies 9 ·
Why Is My Calculation of Work for Sliding a Crate Up a Ramp Incorrect?
- Xamfy19
- · Replies 2 ·
Calculating Heat of Vaporization for Solid CO2 in Water
- nsw
- · Replies 12 ·
What is the total electrical potential energy
- Moose352
- · Replies 2 ·
Converting a galvanometer to an ammeter with shunt resistor
- eku_girl83
- · Replies 2 ·
Deriving the Maxwell Stress Tensor for a Spherical Charge Distribution
- mark9696
- · Replies 2 ·
True or False on kinetic energy
- PhysicsPhun
- · Replies 6 ·
Still no confident with these answers.
- nautica
- · Replies 6 ·
Just one harmonic motion problem
- mustang
- · Replies 7 ·
Ping-pong ball in zero-g water blob and train window breakage
- holly
- · Replies 3 ·
Differentation Problem (involves product rule)
- Cod
- · Replies 3 ·
Solving the Integral: $\int_{0}^{\ln 2} e^{-2x} \,dx$
- tandoorichicken
- · Replies 5 ·
Electromagnetic Forces and Fields: Ranking, Ratio, and Distance Calculations
- nautica
- · Replies 5 ·
What Is the Magnetic Field Between Two Parallel Wires Carrying Current?
- nautica
- · Replies 4 ·
Solving Calc AP Problem 1: Total Distance 0-2
- tandoorichicken
- · Replies 2 ·
Towing a 25.0 kg suitcase at constant speed with handle at an angle
- PrudensOptimus
- · Replies 4 ·
How Well Do You Understand Inductive Circuits and Magnetic Fields?
- nautica
- · Replies 4 ·
Project ideas for statics and dynamics
- ermines
- · Replies 2 ·
Finding voltage and current across five resistors in a diamond circuit
- i_hate_physics
- · Replies 3 ·
Speed of an object thrown down a hole to the center of the earth
- qpt
- · Replies 2 ·
Calculate Center of Mass for 1.05cm Baseball Bat with Linear Density Formula
- HandcuffedKitty
- · Replies 2 ·
Ideal gas law problems: hemoglobin mass, water moles, helium blimp, tire pressure
- moonlit
- · Replies 9 ·
How Do You Convert Momentum from MeV/c to kg-m/s?
- gnome
- · Replies 2 ·
Finding the mass of the earth's atmosphere
- deltabourne
- · Replies 2 ·
How Do Material Thickness and Thermal Conductivity Affect Heat Loss in Clothing?
- moonlit
- · Replies 2 ·