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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Balancing Forces: Solving 2 Problems
- Hollysmoke
- · Replies 3 ·
How to combine two equations with FAC to get 1.732Vb - Hb = 19.32
- PhysicsApprentice
- · Replies 7 ·
Work Done by the Gravitational Force problem
- kappcity06
- · Replies 15 ·
What is the required force to lift a 15.0 kg child on a teeter-totter?
- jhrnndz1
- · Replies 1 ·
Calculating Work and Kinetic Energy: A Ski Slope Scenario
- kappcity06
- · Replies 3 ·
Why Does It Take More Suction to Drink a Can With 1 Straw?
- PhysicsN00b
- · Replies 3 ·
Motion In the Presence of Resistive Forces
- webren
- · Replies 4 ·
Understanding Harmonics in Music: The Physics Behind Playing Flute Notes
- dt19
- · Replies 2 ·
How Does Friction Affect Rock Climbing Stability?
- mikejones2000
- · Replies 1 ·
Finding the point where electric force on a third charge is zero
- jairusgarcia
- · Replies 10 ·
Maximum force before upper block slips on lower block
- Tensaiga
- · Replies 10 ·
Optics (refracting light) and (mirrors)
- Jehuty
- · Replies 6 ·
Energy created by a falling object
- emandelli
- · Replies 6 ·
How can I solve the current in a circuit quickly using Kirchhoff's Law?
- meczs
- · Replies 12 ·
What is the Angle Between Two Forces When Their Resultant is Equal in Magnitude?
- crazyguy12
- · Replies 1 ·
Soleniod Field Direction With Battery
- adabistanesoophia
- · Replies 2 ·
Why do capacitors in series have the same charge but different voltages?
- adabistanesoophia
- · Replies 3 ·
Calculating spring potential energy for bicycle pedal assistance
- Kevin Jones
- · Replies 1 ·
Uniform Circular Motion - Find Force
- webren
- · Replies 4 ·
When Will Ships P & Q Be Closest to Each Other?
- dopey9
- · Replies 5 ·
Finding weight of ground above tunnel and number of support columns needed
- mikejones2000
- · Replies 1 ·
Optimal Acceleration for Long Jump on the Moon
- kristen151027
- · Replies 11 ·
Object exerts an opposing force of equal magnitude
- Ukitake Jyuushirou
- · Replies 45 ·
Magnetic forces on two current carrying wires
- endeavor
- · Replies 3 ·
Trampolinist spring constant: textbook answer 3.9 kN/m vs my answer 3.5 kN/m
- Ukitake Jyuushirou
- · Replies 6 ·
Calculating Maximum Distance of Object in Gravity-Free Fall
- mlazos
- · Replies 5 ·
Testing different coolant mixtures for water-cooled CPUs
- mbengtson
- · Replies 7 ·
How Does Tarzan Accelerate Towards the Cliff in a Frictionless Scenario?
- Tensaiga
- · Replies 7 ·
How Does the Principle of Superposition Apply to Forces in a Spring System?
- chandran
- · Replies 1 ·
Potential Difference b/t 2 points
- rjnara
- · Replies 4 ·
V= at or velocity = acceleration x time square
- sweet_gen03
- · Replies 3 ·
Flow Rate of Water with Pressure Difference
- Idea04
- · Replies 8 ·
What is the net charge of a metal sphere after adding 7.0 x 10^13 electrons?
- MD2000
- · Replies 3 ·
Gauss' law-thin spherical shell
- app
- · Replies 3 ·
Question concerning Fluid Mechanics.
- lawtonfogle
- · Replies 4 ·
Slinky springs and eq of motion.
- JoshuaR
- · Replies 1 ·
Solving Bungee Jump Problem with No Air Resistance or Damping
- dopey9
- · Replies 6 ·
GM - M mass of earth , G gravitational constant
- dopey9
- · Replies 3 ·
Linear/angular momentum formulas
- dopey9
- · Replies 3 ·
Solving Air-Water-Glass Problem
- ccl4
- · Replies 5 ·
Probability of puck bouncing of wald
- whoelsebutme
- · Replies 2 ·
Circular motion, forces, magic mountain ride.
- JoshuaR
- · Replies 4 ·
Fusion of Deuterium Nuclei: Equation, Unknown Nucleus, and Energy Calculation
- fabbo
- · Replies 5 ·
Electric Field Lines: Symmetry between Opposite Charges
- ness9660
- · Replies 1 ·
Acceleration of object - how much time does it take
- lumtesm
- · Replies 2 ·
Flux through Gaussian surfaces around charged shells
- rjnara
- · Replies 1 ·
Question concerning Electric Field
- momomo_mo
- · Replies 2 ·
What are the tension and acceleration in this pulleys and rope problem?
- Teegvin
- · Replies 4 ·
Finding Earth's orbital momentum around the sun
- Natalya18
- · Replies 3 ·
What is the resistance of the heater?
- endeavor
- · Replies 4 ·
How can you use a winch to pull a car?
- webren
- · Replies 8 ·
Finding elementary charge from Millikan oil drop data
- al_201314
- · Replies 20 ·
Can weever have dispersion of a wavegroup with a unique frequency?
- Kolahal Bhattacharya
- · Replies 1 ·
Finding tension between 9.00-kg weight and 5.00-kg block on table
- webren
- · Replies 8 ·
Problem involving tension, circular motion and equilibrium
- walker
- · Replies 7 ·
Conical Pendulum: A Level Maths Required?
- dt19
- · Replies 3 ·
Solving the Problem of a Block Sliding Up an Inclined Plane
- webren
- · Replies 5 ·
Tennis ball hit at angle hitting wall at distance d
- dopey9
- · Replies 2 ·
Why is 2a1 = a2 in this pulley system?
- Harmony
- · Replies 1 ·
What does II mean in math notation?
- Lorens
- · Replies 2 ·
Why does charge lose potential energy in a circuit with a light bulb?
- boris16
- · Replies 3 ·
Can Initial Speeds of 0m/s Solve This Kinematics Problem?
- Ukitake Jyuushirou
- · Replies 31 ·
Electric Field and Infinite Plane
- verd
- · Replies 9 ·
Is air drag proportional to speed or speed squared?
- ExitSeven
- · Replies 2 ·
Average acceleration of a bird changing direction and speed
- highc
- · Replies 9 ·
Difference between people 'doing the wave', and a transverse wave?
- Byrgg
- · Replies 11 ·
Calculate the velocity of the eight ball after collision
- aarietta
- · Replies 5 ·
How do you calculate relative permeability in a loud speaker?
- copresh1
- · Replies 5 ·
Projectile motion of 2 dimensions
- Musicman
- · Replies 2 ·
What is the final temperature of the lead bullet?
- aechols1
- · Replies 3 ·
Calculating the Force Required for an Exceptional Vertical Jump
- Tensaiga
- · Replies 7 ·
How Much Kinetic Energy Does the Heavier Piece Acquire in an Explosion?
- MD2000
- · Replies 21 ·
What is the flash wattage for a camera flash with a 765 µF capacitor at 345 V?
- StudentofPhysics
- · Replies 4 ·
A couple questions - need answers to for final
- Atomos
- · Replies 8 ·
Calculating Temperature and Wavelength of Sound with Distance
- MD2000
- · Replies 13 ·
Conservation of Energy rollercoaster
- jhrnndz1
- · Replies 3 ·
Solve Dynamics Problem for Particle on Semicilinder
- Paquete
- · Replies 12 ·
Electric Force Question and Spheres
- delongk
- · Replies 2 ·
Calculating Capacitance of a Neuron Axon Using Parallel Plate Capacitor Formula
- StudentofPhysics
- · Replies 3 ·
How much flux passes through a spherical surface around a point charge?
- delongk
- · Replies 13 ·
Resistor Change from Aorta to Capillaries
- Alcyon
- · Replies 24 ·
Determining the Location of Zero Electric Field in a Three-Charge Configuration
- overkill
- · Replies 5 ·
Calculating Work Done in Lifting a Weight with a Spring
- willydavidjr
- · Replies 20 ·
Solving Circuits: Understanding Parallel and Series Connections
- smarthbehl
- · Replies 3 ·
Friction problem on inclined plane
- jhrnndz1
- · Replies 3 ·
What is the amount of work required to compress the spring?
- jhrnndz1
- · Replies 4 ·
Parallel plate capacitor capcitance question?
- mazinse
- · Replies 5 ·
Oscillations of a water-filled pendulum when water freezes
- durt
- · Replies 6 ·
Finding where electric field equals zero for three collinear charges
- verd
- · Replies 25 ·
In what direction should the plane head?
- Riya
- · Replies 5 ·
Calculating Current in a Coil with Given Magnetic Field and Parameters
- endeavor
- · Replies 4 ·
Understanding Coulomb's Law and Vector Components
- verd
- · Replies 8 ·
Calculate the speed of impact at the ground
- Karma
- · Replies 4 ·
Calculating Force Between Two Moving Crates
- Hollysmoke
- · Replies 2 ·
Understanding Fractions in Scientific Instruments
- physicsgal
- · Replies 24 ·
Calculating Force and Thickness of a 8.0g Bullet Passing Through Wood
- Hollysmoke
- · Replies 8 ·
Current vs power and voltage in photoelectric effect
- al_201314
- · Replies 9 ·
How Do You Calculate Torque in a Beam Suspended by a Rope?
- mcdelilah
- · Replies 1 ·
How Does Tension Affect Electric Charge Calculation?
- verd
- · Replies 1 ·