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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How Many Ways to Get Three of a Kind in a Four-Card Hand?
- blue_soda025
- · Replies 2 ·
Setting up triple integrals with region bounds
- stunner5000pt
- · Replies 7 ·
How Can Car C Gain on Car D Despite Both Accelerating?
- jhson114
- · Replies 2 ·
Calculating Potential Height of Kinetic Energy Jump
- Linco
- · Replies 14 ·
Chemical Tests for Identifying Sodium Carbonate and Sodium Chloride
- maccaman
- · Replies 4 ·
Induced EMF in moving square loop with Faraday's law
- robert25pl
- · Replies 6 ·
How Does Spring Compression Vary with Different Methods of Loading?
- phazei
- · Replies 5 ·
How does weight change in an accelerating elevator?
- yeshli2nuts
- · Replies 6 ·
Light ray at 45° through equilateral prism with n=1.5
- iamnotbatman
- · Replies 2 ·
Solving Refrigerator Problem: Calculating COP and Work
- sportsrules
- · Replies 3 ·
Relatively simple friction problem
- flower76
- · Replies 2 ·
How Do You Set Up Limits for a Triple Integral Involving a Cylinder and Planes?
- VinnyCee
- · Replies 8 ·
How Does Projectile Motion Affect a Ball Thrown from a Cliff?
- Naeem
- · Replies 2 ·
Angular frequency - how is it derived?
- UrbanXrisis
- · Replies 7 ·
Power series for ln(1+x) and x*ln(1+x)
- tandoorichicken
- · Replies 2 ·
Average force on baseball bat hitting 120 mph fastball
- Azytzeen
- · Replies 8 ·
Calculating Time of Flight for Ball Thrown at 45° with Initial Speed 31 m/s
- unfortunate
- · Replies 16 ·
Conceptualizing two tangent lines to an ellipse
- ktpr2
- · Replies 14 ·
Why can't adenine and cytosine pairs form?
- joejo
- · Replies 6 ·
Man walking on frictionless sledge toward shore
- ColdFusion85
- · Replies 3 ·
Can an Adiabatic Process be Isothermal?
- flythisforme
- · Replies 5 ·
Sum to infinity of x^n/(n(n+1))
- crazedbeat
- · Replies 27 ·
How Do You Calculate the Average Force Exerted by a Gas Molecule in a Flask?
- dalitwil
- · Replies 4 ·
How Fast Do Entwined Movie Foes Slide After a Stuntman Swings?
- janiexo
- · Replies 3 ·
Transitional state of electrons.
- airkapp
- · Replies 2 ·
Electric flux through a square surface at 35° to the field
- Rave Grrl
- · Replies 5 ·
Solving Two-Pendulum Collision: Find Max Angle
- ProBasket
- · Replies 2 ·
Frog and Horse Trough Questions
- imnotsmart
- · Replies 9 ·
Solving simultaneous equations with logarithms
- roger
- · Replies 7 ·
Checking net ionic equations for Cr, Al, and Zn reactions
- joejo
- · Replies 15 ·
How Do You Calculate the Velocity of Two Colliding Cars That Stick Together?
- ~angel~
- · Replies 19 ·
Integrating z over a tetrahedron bounded by x+y+z=1
- Alem2000
- · Replies 2 ·
Evaluate Surface Integral: Solve x^2 + z^2 = 9, x=0, y=0, z=0 and y=8
- Hoofbeat
- · Replies 2 ·
What is the energy loss per second for a wall with two different materials?
- dalitwil
- · Replies 2 ·
What is the emf induced in the loop?
- BillytheKid
- · Replies 2 ·
Why is apparent weight less than true weight at the equator?
- naren11
- · Replies 12 ·
Find the terminal speed of a 750-kg rocket
- ProBasket
- · Replies 3 ·
Finding the more massive block's mass in an Atwood machine
- WY
- · Replies 9 ·
Calculating Angular Acceleration for a Solid Cylinder on a Frictionless Bearing
- Punchlinegirl
- · Replies 9 ·
Physics of Catapults: Seeking Advice
- Angelica
- · Replies 3 ·
Convergence tests for series with restricted digits and nested radicals
- matrix_204
- · Replies 2 ·
Sample optics exam with solutions for thin lenses and diffraction
- Physicsme
- · Replies 2 ·
Tracking the Ball's Motion After a Throw at Ground Level
- Naeem
- · Replies 5 ·
Calculating Wavelength and Intensity in Opposing Phase Vibrations
- SwAnK
- · Replies 2 ·
Integration by parts with x³e^x² and xe^x/(x+1)²
- mad
- · Replies 5 ·
Check my algebra homework answers
- dagg3r
- · Replies 2 ·
Solving for Electric Field with Gauss' Law
- robert25pl
- · Replies 4 ·
How Is Work Calculated When Lifting an Object with a Tension Force?
- NoHeart
- · Replies 2 ·
Why am I getting probability greater than 1 for rolling a 4 twice?
- huan.conchito
- · Replies 2 ·
Integration of X^2 exp(-aX^2) from 0 to infinity
- Rachael_Victoria
- · Replies 4 ·
Angular acceleration of a pulley
- cosmokramer
- · Replies 3 ·
Calculating Power Output: A Homemade Ice Cream Maker
- shawonna23
- · Replies 2 ·
First and last terms in the nth bracket of integers grouped by powers of 2
- al_201314
- · Replies 2 ·
Determine divergence/convergence of an integral?
- crazedbeat
- · Replies 6 ·
How Fast Will the Spacecraft Crash into the Lunar Surface?
- bmoran08
- · Replies 2 ·
Calc. Double Integrals: Setting Limits
- mkkrnfoo85
- · Replies 2 ·
Force components on a rolling sphere at the top of a loop
- kambrian
- · Replies 3 ·
Finding P(B) using complement and union rules
- huan.conchito
- · Replies 3 ·
What Spring Constant Fires a 10g Mass to 100m When Compressed to 10cm?
- NoHeart
- · Replies 13 ·
Two skaters pushed apart by spring: find Al's mass
- shawonna23
- · Replies 3 ·
Solving dy/dx = (4y - 3x)/(2x - y) and verifying the solution
- DivGradCurl
- · Replies 9 ·
How do I find the satellite's altitude above the earth's surface
- bmoran08
- · Replies 2 ·
Finding the Scalar for a Vector in a Linear Combination
- shan
- · Replies 9 ·
Problems concerning magnetic fields, induced current, emf
- Prototype
- · Replies 2 ·
Conservation of momentum - Collision of pool balls
- crazedbeat
- · Replies 5 ·
Direction of magnetic force on moving charged particle using cross product
- Soaring Crane
- · Replies 2 ·
Calculus II Problem: Dams and intergration by slicing
- JasonJo
- · Replies 3 ·
Calculating Boat Speed with Rainfall Accumulation
- ProBasket
- · Replies 10 ·
Show Global Min. of f(x,y): x>= 0.1, y>= 0.1
- ArnfinnS
- · Replies 1 ·
Where Can I Find Extra Calculus Practice Questions Online?
- laker_gurl3
- · Replies 2 ·
Calculating Heat Requirements for Phase Changes
- momtonate
- · Replies 2 ·
Understanding Maxwell's Equations
- robert25pl
- · Replies 12 ·
Find the volume of the solid with base bounded by y=x²-2 and y=4 and square cross-sections
- bigskilly
- · Replies 2 ·
Thermodynamics Block of Copper Problem
- flythisforme
- · Replies 6 ·
Does the Series Converge Pointwise and Uniformly for Certain Values of x?
- quasar987
- · Replies 2 ·
Solving Maximum Range Throw for Astronaut on Earth and Planet with g1
- Naeem
- · Replies 2 ·
Question on induced emf in a loop
- Giuseppe
- · Replies 4 ·
Lim -> inf, x(sin(1/x)) = 1, why?
- ktpr2
- · Replies 26 ·
How Do You Determine the Direction of Oscillation in Differential Equations?
- stunner5000pt
- · Replies 2 ·
Recent astronomy telescope diagram
- Mafer
- · Replies 2 ·
TA: Calculating Induced EMF in a Square Loop with a Uniform Magnetic Field
- Giuseppe
- · Replies 2 ·
Find a vector c that bisects the angle
- particleaccelerater
- · Replies 18 ·
Can velocity components be determined from force in magnetic fields?
- Soaring Crane
- · Replies 2 ·
Projectile motion particle question
- misogynisticfeminist
- · Replies 2 ·
What is the new force between two charges after they touch?
- six789
- · Replies 14 ·
Solving Question: Speed of Ball with Rigid Cannon
- srhly
- · Replies 3 ·
What do the notations in NMR spectral data mean?
- VDX
- · Replies 2 ·
Viscosity of Honey decreases. But why?
- NuGG
- · Replies 6 ·
How Do You Solve a Vector Calculus Integral Over a Sphere?
- Hoofbeat
- · Replies 8 ·
Rod + 2 Particle masses = angular acceleration
- ninjagowoowoo
- · Replies 5 ·
Calculating Impact Speed of a Wrecking Ball: A Quick Energy Question
- ProBasket
- · Replies 2 ·
How Do Mass and Charge Affect Particle Trajectories in a Magnetic Field?
- sinas
- · Replies 2 ·
Calculating Force in a Dynamics Problem
- jen333
- · Replies 3 ·
How Do Damping Constants Affect Amplitude in Simple Harmonic Motion?
- kodee vu
- · Replies 2 ·
How to Linearize a System of Differential Equations with Equilibrium Points?
- stunner5000pt
- · Replies 2 ·
Proving Inequality with Cosine Rule and Schwartz Proof
- SeReNiTy
- · Replies 4 ·
Arithmetic series sum 610, three terms form a geometric series
- misogynisticfeminist
- · Replies 2 ·
Two People, One Fly: How Far Will It Fly?
- TSN79
- · Replies 2 ·
Need to show function {f(x)= x + cos x} has an inverse w/out the use of a graph
- mmlm01
- · Replies 18 ·
What is the width of the Hudson River?
- yoyomaboy
- · Replies 8 ·