Introductory Physics Homework Help Forum

Train car coasting up a 3.73 degree incline without friction

How do I graph 2x+y=1?

Find Earth's charge using Gauss's Law

What Causes the Amplitude Increase on an Oscilloscope When Touching the Lead?

Charge on Ion After 10V Potential Difference: Calculate?

What is the wavelength of the helium-neon laser beam in the liquid?

Electric field inside a sphere of charge

DC Circuits Question (internal resistance)

Calculating Work and Speed of Elevator with Broken Cable

What does q in the voltage equation ΔV = ΔU/q represent?

How Far from Origin to Position Third Charge?

Speeds of tennis balls after collision

Initial Mass Function - how many stars are born

How Do You Calculate Displacement and Tension in a Mass-Pulley System?

Finding Dimensions for Period of a Planet

Force that's acting on the truck

Projectile Motion: How to Calculate Velocity and Position Over Time

Why do standing waves need opposite directions, not different frequencies?

Why do stationary waves not act like destructive ones?

Boat and person round trip between two piers with river current

Finding the orbital height of a satellite

Electric potential of a configuration of charges

Turning Acceleration into g's - Is 40 g's a lie?

Rocket problem (time is wrong )

What are the forces acting on a hinge?

Calculating Angular Velocity and Time for Insect on Rotating Rod

Finding potential between plates

Charge within an electric field

Solving for Lunar Landing Craft Thrust

Force Measurement Histogram: Vertical vs. Horizontal Axis

Angle between swimmer's velocity and riverbank

How Does Current Flow Differ in Parallel vs Series Light Bulb Circuits?

Finding X and Y Components of a Vector

Normal force between blocks in a three-block system pushed by 103 N

Kinematics Problem on a particle

Navigating Wind: Flying East in a Light Airplane

Question involving projectiles in motion.

Diffraction from a single slit.

Ideal monatomic gas engine problem

How Do Judges Evaluate Science Fair Projects on Electromagnets?

D What is the Missing Step in this Electrostatic Algebra Equation?

Instrument attached to wire - Newton's laws

Calculate KINETIC ENERGY of proton traveling close to speed of light

Distance Traveled by Hummingbird: Solving for Height

Determine the acceleration of the 80 kg block

Problem related to power of engine and resistance

Velocity required to reach star in 10 onboard years

Football Player Kicking Ball: Find Clearance of Uprights

Small amplitude oscillations of a ball with water

How to Calculate the Spring Constant from Frequency and Mass

Finding max. height of object thrown vertically upard

• Poll

Volume Charge Density of an infinite cylinder.

Calculate DILATED LIFETIME of muon traveling close to speed of light

Calculating Net Work with Friction on a Long Shish Kebab Delivery

What is the Relationship Between Focal Length and Distance in the Human Eye?

Two forces applied to object in space find the minimum and maximum acceleration

Why is the charge split evenly between the two capacitors in a series?

Calculating Equilibrium Position of a Spring with a Hanging Mass

How Does Gravity Affect a Stone Thrown Downward?

Finding voltage across a parallel plate capacitor with 4 μC charge

Calculating Net Electric Field at y=2.5m from 3.3μC and 3.9μC Charges

How can I find the relationship between E and r in this scenario?

Why does radial acceleration have opposite sign to centripetal acceleration?

Why is the moment along AB pointed in the negative y direction?

Antique telescope magnification and eyepiece focal length

Flow rate to maintain equal pressure in pipes of different radii

Why is Gauss's law written with a closed integral symbol?

Speed change per second with acceleration in km/h²

Find Weight of 800 kg Turtle Raised 5.45 m

Having trouble with this canoe/relative velocity problem.

Change of Frequency Through Different Medium

Changing the Variable of Integration

Electrical Potential Energy Converted to Kinetic Energy

Finding the moment of inertia and torque for a spinning ball

Calculating Force Exerted on a Block in a Vertical Lift

Kinetic Energy speed and a car

Do Cars Falling Off a Cliff Land Simultaneously Regardless of Speed?

How to apply Newton's second law with a free body diagram

How Far Did the Cannonball Roll?

Swimmer crossing river at angle with current velocity vectors

What is the Mass of M1 in a Pulley System with Given Parameters?

Staple spacing on assembly line with moving gun and parts

Flying: Calculating Wind Direction from Airspeed & Ground Speed

Determine the resultant internal loadings in the crane

Solving For Unknown Vector Components

Calculating Centrifugation Distance and Acceleration for Blood Plasma Separation

Calculating the Depth of a Lake Using a Dropped Ball

Equilibrium of forces on an inclined plane

What Causes the Spikes in X-ray Spectra?

Centrifuge - find centripetal acceleration

Need a Topic For Experimental Investigation

Factors affecting inductance experiments

What is the uncertainty in y for given angular velocity and position values?

Force components pulling a trunk up a 20° ramp

Equation for the power a light bulb would radiate

Gravitational Energy and Kepler's Law

Circular Motion and human blood

Problems to overcome installing elevators in tall skyscrapers

Free expansion of a Van der Waal's Gas

Linear spring and non-linear spring