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 maximum current in a RL circuit using V=IR?
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Q2: In a relative non-inertial reference frame, why is fluid velocity zero?
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Calculate the spring constant of oscillating mass on a spring colliding with a wall
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Why can we move the spring with constant speed when we apply a force?
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29
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Pearson HW23, The Little Prince
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Relation between Mutual information and Expectation Values
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Write boolean expression describing this circuit
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Sinusoidal Radiation Statements (T/F)
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Q: In a relative non-inertial reference frame, the fluid velocity is zero?
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Spring Problem Involving Variables and Constants Only
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How would we define a value for acceleration if only the direction is changing?
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998
Show that the Poiseuille field of flow is rotational
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Make 2 launchers that shoot a straw with clay at the end
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What can I add to a Taekwondo body protector scoring systeme to be more stable?
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Is the Final Velocity of a Fly Impacted by an Elephant's Mass?
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Torque in a parallel combination of springs
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1999 AP Physics C Mech: Conservation of momentum and energy
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Find the linear speed of the particle when system rotates about axis
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Find the equation of state of each gas
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Scarf modelled as a pulley system / F=ma exercise
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855
Challenging problem about an impact with a smooth frictionless surface
2
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Energy of a water tank with compressed air
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Inflating a Balloon (elastic balloon vs. paper balloon)
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Confused about resolving Tension and Weight
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4
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796
The biomechanics of elbow extension
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815
Minimum force required to keep two blocks from not falling
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4
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899
Derivation of angular velocity using the unit circle
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5
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854
Interesting question: design of a truck-based crane
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23
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How Does Induced Current Change with Loop Acceleration Through a Magnetic Field?
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T-Shaped Pendulum: Find the Total Mechanical Energy
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Conservation of Energy with Gravitational Potential Energy
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Homework help : The difference between these 2 circuits
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Static vs Kinetic Friction on an Unbanked Ramp
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Moment of Inertia of a Disc: Is it paradoxical?
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Calculating Forces in a Leg: Gait Analysis and Joint Reaction Force
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Would one be pushing as much as their weight?
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903
Confusion in using the continuity equation here
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4
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Vector Operators: Grad, Div and Curl
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White light passing through prism
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Speed of a mass falling into a star given the mass and radius of the star
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Calculate the focal length of a thin convex lens
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Friction Forces on 2WD vs 4WD Vehicles
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Different sunset times due to elevation ##h## at a point on the Earth
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Conservative forces in circular motion?
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Semi-infinite + finite potential well QM
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Calculating the Average speed given two speeds
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Distance traveled when decreasing velocity
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951
How Do Two Rotating Rods Interact?
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What is the right formula to use in this context? (momentum conservation)
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Help with science project to launch a projectile
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Does Heating a Metal Wire Change Its Properties?
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Kinematics: 100 meter dash when one runner starts 3 seconds later
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14
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How to correctly round in physics?
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Spring with mass hangs from the ceiling
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22
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Electric field between capacitor plates when a dielectric slab is inserted
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14
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Understanding Ultrasound and Aluminum Plate Interaction: Factors to Consider
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671
Is the Molar Specific Heat of Air Similar to Hydrogen?
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Mathematical model for drag on tether
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Thermodynamics - Hot copper block dropped in ice water
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Why is there a resistor in a MOSFET-based inverter?
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9
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Calculating Net Force on a Wheel: Magnitude and Direction | 0.350 m Radius
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4
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Spring constant formlula for Force and Work Done
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Graphing the Superposition of Two Standing Waves
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I have a Lab Report on Centripetal Force
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If tension provides the torque to this pulley, what is its equation?
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5
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Movement of the water level in the barrel - calculate its velocity, etc.
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Conservation of energy and momentum for a bullet fired into a block
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What is a focal length of a thin convex lens?
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Height of a stable droplet on a perfectly wetting surface
2
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Why Does the Force Meter Show Different Readings in Similar Situations?
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Solving for Masses in an Atwood Machine
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Kirchhoff's law: Find the current I3 through the Amp meter
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Calculations for accelerating particles in a Cyclotron
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Average Angular Acceleration of a Music CD over 75 minutes
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Is My Understanding of Angular Momentum and Trigonometry Correct?
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The period of a simple pendulum
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What minimum speed do we need to give a charged ball?
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Graphically determining the focal length of a converging lens
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4
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Two networks described by v-i graph: Find voltages when interconnected
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Frequency & Wavelength of a Vibrating Wire
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5
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Find the Electric field due to an electric dipole at the origin
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Why do I keep getting friction coefficient as a negative?
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Two equations "combined" don't give the desired result
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Electrons enter charged capacitor
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Relationship between horizontal force and friction in an exercise
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Classical mech. - inelastic collision
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Find the unkown tensions and masses in the situation below
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8
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Is Solar Radio Flux dependent on Spectral Class?
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The normal force on a thin stick being lifted on a surface
2
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Magnetic Field due to a curved wire
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What was the mistake in solving for the speeds of two marbles after a collision?
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5
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Why is the square root of x^2 = |x|?
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14
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Finding an open-cicuit voltage, why is resistor in series ignored?
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What helium mass in a balloon to make it bouyant in air?
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Graphing Elastic Potential Energy
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Why Isn't the Right Side Negative in a Vertical Spring-Mass System Equation?
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3
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Point particle model for a person pushing a block on ice
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What Are the Differences Between Black Body Radiation Formulas?
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Misunderstanding Work-energy theorem and center of mass properties
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Tension in a string being pulled from both ends
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Intro Physics Homework Help

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