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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How Do You Derive the Work Formula for a Mass Moving Against Gravity?
- metalmagik
- · Replies 8 ·
A bullet droppet and a bullet fired
- TSN79
- · Replies 4 ·
Why does v = d/t give wrong time for horizontal baseball motion?
- Kildars
- · Replies 15 ·
Calculating the Speed of Hoops: A Physics Problem
- John O' Meara
- · Replies 3 ·
Potential energy and kinetic energy confusion
- roxas
- · Replies 1 ·
How Does Accelerating a Pulley Affect the Force Exerted by the Rope on a Block?
- konichiwa2x
- · Replies 1 ·
How Does F=ma Explain Engine Power and Weight in Racing Cars?
- roxas
- · Replies 11 ·
Resistance in a Wire (coursework Evaluation)
- Jozers
- · Replies 1 ·
Circular motion and tension problem
- VenomHowell15
- · Replies 16 ·
Relationship between centripetal force and radius
- kiss89
- · Replies 9 ·
Electric Circuit Misconceptions
- Noesis
- · Replies 5 ·
Force on 70kg Person Holding Rope onto Pully
- ndogg
- · Replies 16 ·
What is the tension and density of a rope supporting a mass of 15 kg?
- ndogg
- · Replies 2 ·
Calculate Inertial Constant K I for Sphere + 4 Disks
- GreenSabbath
- · Replies 2 ·
Why does a cyclist stop accelerating and reach a maximum speed?
- roxas
- · Replies 2 ·
How to center oscillation graph at zero in Datastudio
- haushofer
- · Replies 7 ·
Deriving Electric Field in a Charged Rod and Shell System"
- chillaxin
- · Replies 3 ·
Can the kinetic energy of a system be negative?
- parwana
- · Replies 5 ·
Solve Step up Transformer: Ratio, Power, Fuse Rating
- nateastle
- · Replies 3 ·
How Do You Calculate Current Amplitude in a Parallel RC Circuit?
- nateastle
- · Replies 3 ·
How Can You Calculate the Ball's Speed Inside an Inverted Cone?
- abeltyukov
- · Replies 1 ·
Tension downward acceleration problems
- dkgojackets
- · Replies 9 ·
Finding Miller indices when Z-axis intersection is unclear
- KenMSE
- · Replies 6 ·
Bullet and a Block: Solve the Problem
- directdelta
- · Replies 5 ·
What is the direction of friction on an object placed on a spinning record?
- ndogg
- · Replies 8 ·
What Is the Velocity of Block M After Mass m Falls 2.5 Meters?
- Selerinus
- · Replies 5 ·
How Is Rotational Kinetic Energy Calculated for a Cylinder Rolling Down a Ramp?
- map7s
- · Replies 1 ·
Does rope weight affect tension and where is friction on a spinning record?
- ndogg
- · Replies 8 ·
Find Equilibrant Force Using Trig Method
- nikmar
- · Replies 2 ·
Calculating Airplane Velocity and Direction with Wind
- Canesfanatic
- · Replies 1 ·
Convert Newtons to Pounds Quickly
- mike_24
- · Replies 2 ·
Elastic Potential Energy Stored
- kevykevy
- · Replies 1 ·
Calculating Forces on a Block with Attached String
- mike_24
- · Replies 4 ·
Osprey dropping trout from 12.76 feet at 4.21 mph
- michelleri
- · Replies 29 ·
Does a bullet fall at a greater force?
- roxas
- · Replies 6 ·
Force on 2 kg block on 30 degree frictionless incline
- rkslperez04
- · Replies 8 ·
Demode cant simplify equations =(
- demode
- · Replies 3 ·
Calculating Work Done by Varying Force on a Moving Block - Easy Physics Problem
- DizBelieF14
- · Replies 8 ·
Does Increasing Horizontal Velocity Affect Projectile Range, Time, or Height?
- mikefitz
- · Replies 1 ·
What is the linear speed of a bowling ball after rolling up a ramp?
- map7s
- · Replies 3 ·
Can I Use My Calculator for the Upcoming Physics Exam?
- Alt+F4
- · Replies 66 ·
Verify Net Force on 810kg Car Accelerating from Rest to 27m/s in 120m
- rkslperez04
- · Replies 2 ·
Average Force on Wall from Ice Cubes' Impact
- SamTsui86
- · Replies 5 ·
How Does Distance Affect Gravitational Force Between Objects?
- physics1234
- · Replies 1 ·
Conservation of Energy block of mass
- SamTsui86
- · Replies 4 ·
Why find current separately for each resistor in a series circuit
- himura137
- · Replies 2 ·
3 Questions in regards to WORK AND ENERGY
- mmiller39
- · Replies 4 ·
How to calculate snowboard acceleration
- h20h
- · Replies 2 ·
Angular acceleration of an axle
- mikefitz
- · Replies 3 ·
Is Neutron to Proton Transformation Possible in Nuclear Reactions?
- semc
- · Replies 2 ·
Force on Two Blocks: Find F, Acceleration
- mbrmbrg
- · Replies 4 ·
How Do You Calculate Distances and Angles for Multiple Treasure Map Routes?
- XPX1
- · Replies 9 ·
Projectile Motion Problem: Calculating Time of Flight and Distance Traveled"
- !!!!!!!
- · Replies 5 ·
Optimal Angle for a Fireman Shooting Water from a 20m High Roof
- Fusilli_Jerry89
- · Replies 2 ·
Surface area of the node during Electrolysis
- benhall2121
- · Replies 1 ·
Finding friction force when an object moves at constant speed
- rofljohn
- · Replies 17 ·
Penny Dropped down Well Problem
- Fusilli_Jerry89
- · Replies 8 ·
Examples of quantized values in physics
- lemonylimes
- · Replies 1 ·
2 blocks connected by a metal pull on an inclined plane
- hannibalisfun
- · Replies 2 ·
What Is the Center of Mass of a System of Moving Cars?
- Soaring Crane
- · Replies 1 ·
Solving a Circular Motion Problem: Find the Center of the Path
- ubiquinone
- · Replies 3 ·
Newton's Theory of Gravity and impact speed
- Kalie
- · Replies 1 ·
Solving a Plumb Bob Problem: Accelerating an Incline with a Diagram
- Dorothy Weglend
- · Replies 5 ·
Projectile Motion Time Calculation
- Destrio
- · Replies 4 ·
Finding diving board length from net torque
- Cheapo2004
- · Replies 2 ·
Kinetic Energy/Momentum from change in direction and speed
- threewingedfury
- · Replies 6 ·
How Much Elastic Potential Energy Was Stored in the Spring Before Release?
- kevykevy
- · Replies 1 ·
Static Friction and calculating distance
- californiadaisy
- · Replies 1 ·
Calculate Torque Needed to Spin an LP Turntable 648 Degrees
- mikefitz
- · Replies 6 ·
How Is Work Calculated and Power Determined in Physics Problems?
- !!!!!!!
- · Replies 4 ·
Rotational Kinetics hardest problem
- shaka23h
- · Replies 1 ·
Finding density of item in a liquid
- PascalPanther
- · Replies 5 ·
Bullet acceleration in barrel and stone falling from rising balloon
- Mike_Winegar
- · Replies 12 ·
Tension in a conical pendulum's string
- mbrmbrg
- · Replies 1 ·
How Much Force Is Needed to Accelerate a 35kg Mass Up a 25 Degree Incline?
- bgoble
- · Replies 1 ·
Power emitted by a star between 500 and 510 nm
- agentsmith1011
- · Replies 6 ·
Coefficient of sliding friction without an Fa
- !!!!!!!
- · Replies 2 ·
Calculate the gravitational potential energy of a rocket
- Moerangi
- · Replies 1 ·
Integral of e^ax·cos²(2bx) and finding all values of i^(2/3)
- Geronimo85
- · Replies 1 ·
Normal force during a push up problem
- Max238
- · Replies 2 ·
How far have u gone on the stationary bike?
- shaka23h
- · Replies 2 ·
3 objects connected by ropes (tension)
- metalmagik
- · Replies 15 ·
Circular Motion-When Will They Meet?
- gaimon
- · Replies 4 ·
Design a Long-Distance Paper Car with Lou-Vee-Air
- cdowney8
- · Replies 1 ·
Is cross section is proportional
- alfredbester
- · Replies 6 ·
Magnetic Flux and Induced EMF in a Coil
- erik-the-red
- · Replies 6 ·
Conservation of Momentum in Women Jumping Off Flatcar
- S0C0M988
- · Replies 3 ·
Energy Conservation Problem W/Ramp
- kmj9k
- · Replies 3 ·
Calculating Average Acceleration
- rachelle
- · Replies 5 ·
Raindrop Physics: Solving for Terminal Speed of Falling Drop
- S0C0M988
- · Replies 3 ·
What is the final distance between two decelerating trains on a straight track?
- ellusion
- · Replies 4 ·
Center of mass y-coordinate of SO2 molecule
- shaka23h
- · Replies 7 ·
Seemingly Simple - How Many Orbits? (Rotational Kinematics)
- kmj9k
- · Replies 1 ·
How Fast Must a Flywheel Rotate to Store 1.4 x 10^9 J?
- mikefitz
- · Replies 4 ·
Derive the entropy of an ideal gas
- Lee
- · Replies 1 ·
Find Force M Exerted by Muscle in Test Apparatus
- mikefitz
- · Replies 2 ·
Energy of a mole of photons at 522nm wavelength
- McMaster_Girl
- · Replies 1 ·
Brief explanation of what entropy is?
- Benny
- · Replies 8 ·
How Does Force Affect Javelin Momentum and Speed?
- almost__overnow
- · Replies 2 ·