Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
What is the Speed of the Lowest Bead as the Upper Bead Passes Over the Peg?
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Magnitude of electric field at a point
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Trying to find the equation of motion of a model
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What Is the Oscillation Period of a Pendulum Suspended by an Inclined Wall?
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Finding the diameter in the walls of a pipe (related to current)
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How Does Wave Motion Affect the Path of a Point on a Wave?
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How do I find the acceleration of gravity
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Field inside a finite solenoid - At the ends and in the middle
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Applied Force to a Sliding Frictionless Ramp
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What takes more energy rolling a ball up a hill or carrying it up
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Calculating Forces and Friction in a Moving Package
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Solving Pulley System Questions: Tensions, Weights, and F=ma
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Formation of the Solar System (Astrophysics Homework Help)
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How Do You Calculate the Velocity of a Soccer Ball Relative to the Ground?
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What is the Potential Difference Across the 4.50-kΩ Resistor?
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Down an Incline with Spring: Finding Distance and Maximum Speed
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Solve Collision Questions: Cannonball Speed & Dog Mass
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Find the Current After the Capacitors Have Lost 80% of Stored Energy
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Is There an Error in the r+-r- Expression?
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A Woman Running Towards a Bus Which Pulls away
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Solving for Density: Buoyant Force & Force of Gravity
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A 1.2 kg block is pushed under water and held there. What is the buoyant force?
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Velocity, Work, and Energy of a Falling Meteor
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Two small beads having positive charges 3q and q are fixed
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What is the final speed of the cork in a spring loaded cork gun?
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Showing that a near earth orbit is P = C(1 + 3h/2R_E)
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What could T^2 be? Pendulum lab
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Mass of a suspended ball and a force
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Force of block pushed against wall
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Work done when dragging a crate 15m at 37° angle
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1-dimensional non-conservative force that depends on position?
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Statics Questions involving finding forces
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What Is the Ball's Average Speed During the First 2.7 Seconds?
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What Is the Final Velocity of the Larger Ball After Collision?
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How Does Kinetic Friction Affect a Skier's Ascent Up a Hill?
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Relation between Signal to Noise ratio and Logical Interference
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Finding the Initial Velocity and Angle of a Cannon Ball Launched from a Cliff
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What is meant by no gas enters or leaves the cylinder ?
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Calculating Swing Angle for Equal Kinetic Energy: Man vs Car
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Calculating KE Gain with Velocity Vectors: Explained and Simplified
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A force acting on a particle moving in the xy plane is given by
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An object under water has mass 100 kg. What is the buoyand force?
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Calculating Volume of Water Displaced by 12 kg Wooden Block
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Force Exerted by 20,000N Boulder in 0.4m^3 Tank
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Muscles opperating with efficiency of 18%
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How Do You Calculate Initial Velocity Components Given Angle and Distance?
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Projectile Motion - Finding theta
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Magnetic Field at the centre of Spiral
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Find the entropy for the process
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Multiplication using dot product.
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Questions on phase space and CanonicalMicrocanonical ensembles
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Basic kinetic friction and mass quesion?
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Find velocity of a moment before terminal velocity is reached?
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Mass hanging on a spring - find acceleration
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How Do You Write the Wavefunction for Two Electrons in Quantum States?
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Cable tension force from applied force
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Elastic potential energy of vertical spring
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What is the tension in the string?
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How Do You Solve 2D Equilibrium of a Rigid Body?
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How does the tension in a pulley system change with different masses?
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Underdamped harmonic oscillator with a sinusoidal driving force
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Find Distance: Skydiver Jumping from 36000m in Stratosphere
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Perpendicular Forces and Change in Momentum
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How Far Will You Travel Before Hitting the Mosquito?
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What is the total displacement of a delivery truck given its route and time?
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How do you find delta X using Voy and Vox?
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How far does the object travel horizontally? Two-Dimensional Motion
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Circular motion under gravity; a car travelling on hills
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Difference Between Bound and Free charge
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Calculating the Speedbump Radius to Stop a Car: A Homework Challenge
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Normal Force during centripetal acceleration
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Liquid oscillating in a U-tube problem
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Was My Approach to Solving the Physics Problem Correct?
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2 dimensional projectile motion
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What is the Energy of a Photon Released in Atom Decay with a Change in Mass?
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Ampere's Law and Magnetic Fields
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How Do You Calculate the Flow Rate of Air Through the Trachea?
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2 people pulling on ropes or cables with a third person trying to equal out
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Physics Question involving a person pulling himself up
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Gauss's Law: Finding Electric Field of Line of Charge
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Solving for Tension in Rope: A & B Blocks, Theta=30°, us=.25
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What Is the Takeoff Angle for a 7.5m Long Jump?
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Vectors as Paths with measuring degrees
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Why classical physics work in quantum mechanics
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Finding Velocity on a Position/Time Graph
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How to Find the Magnetic Field Gradient from Four Parallel Wires?
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How Does Newton's Third Law Apply to Motors and Elevators?
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Help Needed: Solving Ramp Problem with Inclined Wedge and Block
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Determining initial velocity of an electron
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Calculating Charge with Capacitors in Series
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Finding the magnitude of Torque
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Solve for Pulling Force for Sled w/ Mass, Angle, & Coeff. of Friction
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Moment of Forces about Point A help.
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Is the Net Force Zero in Constant Velocity and Other Physics Queries?
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Acceleration for Masses on a slope/plane connected by a string
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Conserving Angular Momentum: Solving a Cockroach Problem
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What is the speed of the ambulance based on its siren's frequency?
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Net Acceleration: Is it Ever OK?
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Find Tension of the rotating rod at a distance x
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Rejecting the Semiclassical Bohr Model: Examining the Uncertainty Relation
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