Introductory Physics Homework Help Forum

How Efficient Can a Heat Engine Be Between 1200 K and 300 K?

Thermodynamics: Finding Specific Heat of Ice

Max distance of resolution from 2 point sources of light

Where Will the Final Image Be Located in a Two-Lens System?

R1 350 Ohms: What Current Flows at 50V?

Finding contact force between two blocks pushed together

Roational Inertia of a triangle

Finding EMF, internal resistance, and power dissipated in a cell circuit

Finding the capcitance of this capacitator

Finding Period with Double Stars

Determining Uncertainty in Position using Heinsburg's Uncertainty Principle

What Frequencies Form Standing Waves in a Microwave Cavity?

What Is the Acceleration of the Inclined Plane with an Ice Cube Sliding Down?

How Do Kepler's Laws Explain Satellite Orbits in Simulated Experiments?

How Do You Calculate the Electric Potential at Point X Relative to Point Y?

R Network- finding total resistance.

Fundamental Frequency of Open and Closed Tube

Solve Torque Question: Will Free Point B Go Up?

Is My Method for Calculating Pressure Difference in a Venturi Meter Correct?

Calculating Centrifugal Force of a Car on a Curved Road

Thin film light interference question

What is the difference between an induced emf and a back emf?

Elastic Collision: 1kg Object, 0.7kg Object, 0.2s Interval

How Do You Calculate Thermodynamic Quantities for a Compressed Diatomic Gas?

Why do magnetic poles always occur in north-south pairs?

Which Hand Rule Determines Current Direction in Magnetic Fields?

Thevenin's equivalent circuit problem

Rocket changing direction by perpendicular gas ejection

What Is the Final Velocity of a Mass Accelerated by a Force?

Galileo's incline plane experiment: proving distance proportional to time squared

Seperation of the induced charge

Can a strong external field reverse magnetism in a bar magnet using domain theory?

How to Calculate New Resistance in a Stretched Wire with Uniform Cross Section?

Pendulum speed with only height from equilibrium

Why are voltages across resistor and inductor out of phase in an RL circuit?

How Does Charging by Induction Work with a Positive Object?

Air Pressure and Net Force on a Door in a Tornado

At what angle should a flashlight be aimed to illuminate a penny on a pool bottom?

What is the net torque on a wheel with given dimensions and direction?

Centripetal force on amoeba in centrifuge

Determining Natural Length of a Spring

Calculating Average Intensity of a laser blackboard pointer

Work to Stretch Spring from 35cm to 40cm

Solve Circular Motion: Satellite Height, Speed, Location

Heating power of two radiators in parallel and series

What is a Suitable Projectile for a Small Trebuchet?

Does a body accelerate or move at constant speed once it starts sliding down a slope?

Solving for Unknown Frequency: Tuning Fork Beats

Why are electric field equations E = Kq/r and E = Kq/r² both used?

Where Can I Find Sinusoidal Problems for RC and RL Circuits?

Special Relativity: Why is Length Contraction Inverse of Time Dilation?

What Is the Distance Traveled by a Disc on a Block Before Coming to Rest?

How much charge stored in capacitor ?

Child on merry-go-round: angular and centripetal acceleration

Tension and acceleration in pulley system with rotating pulley

The Dot Product and Cross Product: Finding the Angle Between Two Vectors

Parachutist free fall with drag coefficient change at t=10s

What Is the Coefficient of Static Friction for a Ladder Leaning Against a Wall?

Accelerating an electron in the y-direction with electric and magnetic fields

Finding the coefficient of kinetic friction using impulse/momentum

What Is the Speed of the Second Puck After a Head-On Collision?

Thermal Expansion Ethanol Problem

Rotational Mechanics(The concept of spinning)

Potential difference in parallel - capacitors

Impossible heisburg uncertainty question that makes no sense

Force exerted on inside of a box by a gas

Calculate Tension in String: m1=4.50 kg, m2=7.50 kg, a=1.4 m/s^2

What is the Minimum Uncertainty in Block's Speed on a Frictionless Surface?

Estimate the density of the water

Object Lifted By Cord (Stress/Tension Problem)

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How to get the critically damped vibration equation

Help with Spring Problem - Find a Function & Position at t=pi/12

Thermodynamic Work: Find w P, V, T Not Constants

Angular position, speed, and acceleration

Calculating Width of Single Slit Diffraction Pattern

What Angles Do Colliding Pendulums Reach Post-Elastic and Inelastic Collisions?

I used to be good at phyics, but

B-field Component of Electromagnetic Wave After Change in Time

What Is the Efficiency of a Monoatomic Ideal Gas Cycle?

Tuning fork frequency in a resonating water tube

Using energy conservation to find forces between two particles

Why is the magnetic field zero at the center of a square loop?

How Do You Calculate the Radius of a Copper Cable Using Ohm's Law?

Focal length of her contact lenses

Normal force and friction on a parked car on a 20° slope

Calculating Probability of Particle in a Box

Voltage/current in circuit with two temperature sensors

Calculating earth's speed using radius and speed of light, etc.

Point charges arranged as a trianngle

Temperature and Kinetic Energy question

Distance between lense and film to get a focused picture

Measuring power output of solar cells and panels

Question on heat transfer of a plane wall

What Is the Pressure on an Object 10m Below Sea Level?

Easy Acceleration / Friction question

How Do You Calculate Rotational Inertia for a Solid Block?

How to Calculate Initial Radioactive Activity for Patient Treatment?

Why Does the Tension in the Lower Rope Not Depend on Mass M1?

Maximum Height Reached by Block on Spring

Heat Pump Q: Cost of Winter Heat w/ 75% CoP