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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What Is the Initial Momentum of the System?
- Maiia
- · Replies 3 ·
Minimal force to move a 20 kg block at constant speed
- liz777
- · Replies 1 ·
Is 1/2ln(a+4)+ln(b)-5ln(c) equal to ln(b/(c^5(a+4)^(1/2)))?
- elie_girl
- · Replies 3 ·
1 Billard Ball Into Middle of 2 Others
- agross
- · Replies 1 ·
Why Should the Power Output Be 47.7 Horsepowers?
- davedave
- · Replies 1 ·
Finding Tensile Force in Pulley Problem
- Ryino
- · Replies 23 ·
Calculating Impulse and Average Force in a Softball Pitching Problem
- Maiia
- · Replies 6 ·
"Lowest Child B: Why Dropping Rocks is Best Choice
- jeremy smith
- · Replies 1 ·
Movement of an electron between two plates
- asi123
- · Replies 1 ·
Determine the linear acceleration of the tip of the rod
- shimizua
- · Replies 1 ·
Calculating Mass of 1 Cubic Meter of Water in Kilograms
- shimizua
- · Replies 1 ·
Where are these rational expressions undefined and how to simplify complex fractions
- elie_girl
- · Replies 2 ·
Inclined slope with acceleration
- devanlevin
- · Replies 20 ·
Simple experiments to measure gyroscope precession
- starlet
- · Replies 5 ·
Conceptual Rotational Motion and angular velocity
- JPhillips
- · Replies 9 ·
Length of the box based on the fringe pattern? I think I'm close.
- spaghed87
- · Replies 1 ·
Calculating a Planetary Year for Krau?
- omgitsmonica
- · Replies 4 ·
Detecting Mass Changes with a Hydraulic Balance
- tacoman326
- · Replies 5 ·
Water fountain height 4.23 m, find flow rate in gallons per minute
- lalalah
- · Replies 1 ·
Equilibrium Temperature and composition
- RedBarchetta
- · Replies 1 ·
How Do You Calculate Work on a pV Diagram When Pressure Varies?
- doggieslover
- · Replies 7 ·
Refraction index vs. wavelength?
- jaejoon89
- · Replies 1 ·
Momentum Problem: Final Momenta, Kinetic Energies Compared
- Maiia
- · Replies 3 ·
Syringe: probably a really simple mistake that I can't seem to catch
- bellekirst23
- · Replies 1 ·
Air Balloon ( 5.5 inch diameter) vs Helium gas balloon ( 11 inch diameter )?
- redhot209
- · Replies 1 ·
Dark fringes in air wedge with glass plates and fibre
- erinec
- · Replies 4 ·
Isobaric, Isochoric, Isothermal, and Adiabatic Processes
- doggieslover
- · Replies 2 ·
Solve 870 kg Sports Car Collision Speed at Impact
- sumitmanhas
- · Replies 3 ·
Angular acceleration and power of a 2.08 m airplane propeller
- JWDavid
- · Replies 3 ·
Determining pressure in the pot.
- Micko
- · Replies 4 ·
Finding Velocity Using Work-Energy Principle
- Bones
- · Replies 5 ·
Finding moment of inertia for problem 8
- jimbo71
- · Replies 1 ·
Deviations from the Ideal Gas Equation
- doggieslover
- · Replies 2 ·
Standing wave in string with four segments at 120 Hz
- Husker70
- · Replies 1 ·
How Does Radioactive Decay Affect Isotope Ratios Over Time?
- Sublime74
- · Replies 1 ·
Calculating Age of Old Sample with Carbon 14 Dating
- Sublime74
- · Replies 1 ·
How Much Acceleration Is Needed to Prevent a Fishing Line from Breaking?
- liz777
- · Replies 1 ·
Find frictional force from mass and acceleration
- liz777
- · Replies 1 ·
Energy required to accelerate a mass
- Stellar1
- · Replies 1 ·
Where is the electric field zero for four equal charges at corners of a square?
- bap902
- · Replies 3 ·
How long does it take for the 4.0 kg block to reach the floor?
- booboo21407
- · Replies 8 ·
Calculating the Starting Angle of a Pendulum Using Geometry and Trigonometry
- ptdreamer
- · Replies 3 ·
Phase difference of reflected sound waves in a hallway
- Husker70
- · Replies 21 ·
Frequency of Harmonic Oscillators on Earth and the Moon
- Naldo6
- · Replies 9 ·
How Do Phase Shifts Affect Resultant Wave Amplitude and Frequency?
- Husker70
- · Replies 1 ·
What is the acceleration of a toy car rolling down a ramp at a 20 degree angle?
- fk378
- · Replies 3 ·
Bernoulli's Principle: How Does Water Flow in a Tower with Multiple Holes?
- bmandrade
- · Replies 3 ·
Calculating U-235 Requirements for a 707 MW Nuclear Fission Reactor
- haxxorboi
- · Replies 3 ·
What is the acceleration of a cylindrical shell rolling down an inclined plane?
- Amlung
- · Replies 3 ·
How can I calculate the electric field using the voltage and gradient?
- abcdefg10645
- · Replies 1 ·
What Is the Impulse Given to a Ball by the Floor in a Bounce?
- Mikejax
- · Replies 1 ·
First Law of Thermodynamics Question
- bap902
- · Replies 1 ·
What Is the Average Acceleration of a Bird Flying from Point A to B?
- lanvin
- · Replies 11 ·
Disk falling while rope unwinds from it
- physicalerror
- · Replies 3 ·
Doppler effect and frequency of the horn
- Naldo6
- · Replies 15 ·
Orbital problem giving answer much smaller than choices
- jimbo71
- · Replies 6 ·
What Are the Effects of Rigid Body Force and Torque?
- jimbo71
- · Replies 6 ·
Light Interference Webassign question
- nickredsox
- · Replies 6 ·
Where Should You Place a Pump to Extract Water from a Deep Mine?
- TFM
- · Replies 14 ·
Significance of spring mass in SHM.
- hjalte
- · Replies 1 ·
Practical - Stress-Strain graph of an elastic band
- JanineSamson
- · Replies 1 ·
5m beam with 80N and 180N loads: where to apply 100N force to balance?
- phys1618
- · Replies 4 ·
Solving Simple Fluid Problems: Bernoulli's Equation
- Machodog
- · Replies 3 ·
.Achieving a Successful Rocket Lab in Physics Class
- CARTERfails
- · Replies 1 ·
What Are the Correct Units for p in the Equation R=pl/A?
- phyuk2
- · Replies 1 ·
Why doesn't a stove increase air's internal energy in a cabin?
- jdstokes
- · Replies 4 ·
Calculating Current in a Direct Current Circuit with Kirchhoff's Rules
- Mister V
- · Replies 6 ·
Solving for Acceleration and Friction in Rolling Motion
- iitjee10
- · Replies 2 ·
Electrostatics Multiple Choice Questions
- bap902
- · Replies 4 ·
Maximum speed of string particles from wave equation
- Naldo6
- · Replies 10 ·
How Does the Law of Conservation of Momentum Apply in a Firework Explosion?
- sumitmanhas
- · Replies 2 ·
Force due to gravity homework problem
- jimbo71
- · Replies 1 ·
Calculate the Density of a Block Floating in Olive Oil
- Naldo6
- · Replies 6 ·
Calculating Weight and Sliding Force on a Roof | Statics Problem Solution
- phys1618
- · Replies 2 ·
How Do You Calculate the Density of LiCl in a Face-Centered Cubic Structure?
- roeb
- · Replies 1 ·
How to Convert Mass and Weight on Earth to Mass and Weight on the Moon?
- Dandy Candy
- · Replies 4 ·
Equilibrium - Flagpole vs Rope Tension
- Shambles
- · Replies 1 ·
Temperature Variation Coefficient
- Pochon
- · Replies 1 ·
Does Rotational Kinetic Energy Differ for Objects Like Fans in the Air?
- kmikias
- · Replies 1 ·
What is the Volume of the Floating Object?
- Naldo6
- · Replies 13 ·
Fluid Physics; Finding the Density of an Unknown Liquid
- Jinthe1st
- · Replies 3 ·
The Rotational Kinetic Energy of the Earth
- soupastupid
- · Replies 1 ·
Find the magnitude of acceleration of the puck on the ramp
- ScullyX51
- · Replies 1 ·
Find the acceleration in terms of friction
- ScullyX51
- · Replies 1 ·
What is the Maximum Energy and Velocity in Spring Oscillation?
- Naldo6
- · Replies 1 ·
How Much Air Must a Fish's Bladder Contain to Achieve Neutral Buoyancy?
- Physicsdude13
- · Replies 3 ·
Potential energy and a pendulum
- Mikejax
- · Replies 10 ·
How do momentum, impulse, and GPE factor into solving physics questions?
- ballaholic8
- · Replies 2 ·
Determining Impending Motion with Coefficients of Friction
- jaredmt
- · Replies 4 ·
Is Calculating 69g's as 676.89 m/s² Correct?
- Oblivion77
- · Replies 1 ·
Simple harmonic motion amplitude, frequency, period and energy
- Naldo6
- · Replies 2 ·
What is the tension in the string at the top of the ball's path?
- Toxage
- · Replies 2 ·
Simple Harmonic Motion - Finding max speed of an oscillator
- KEØM
- · Replies 2 ·
What Height Must the Granite Cube Start From to Propel a Steel Cube to 150 cm/s?
- mrjoe2
- · Replies 6 ·
Finding spring constant from two equilibrium lengths
- Naldo6
- · Replies 11 ·
Solved: Spinning Situation: What Happens to the Merry-Go-Round?
- soupastupid
- · Replies 2 ·
Solving Static Problem: Help Needed
- phys1618
- · Replies 2 ·
Calculating the time of stopping distance
- chaz699
- · Replies 2 ·
Terminal velocity when falling through the atmosphere
- JimT
- · Replies 2 ·