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 Minimum Distance Between a BMW and a Camper to Avoid Collision?
- jojo711
- · Replies 2 ·
Wind velocity component when angle is east of north
- Physics697
- · Replies 2 ·
Finding velocity given radius and coefficient of friction
- Mooshk
- · Replies 3 ·
How Much Charge is Needed for an Ink Drop to Deflect in an Inkjet Printer?
- gp0015
- · Replies 1 ·
Calculating Power from Torque and Rotor Speed
- littlesohi
- · Replies 5 ·
How Many Wavelengths Between a Node and an Antinode in a Standing Wave?
- mtreichl
- · Replies 1 ·
3 particles A,B,C of masses m,2m,3m lie at rest in that order on
- jiboom
- · Replies 1 ·
Finding displacement amplitude given frequency and pressure
- leinad0213
- · Replies 1 ·
What is the Speed and Time for a Stone Thrown Downward?
- jojo711
- · Replies 7 ·
Finding the Net Torque of a Circular Object
- DrunkApple
- · Replies 3 ·
How far along the incline is the highest point from the release point?
- helpmeimdumb
- · Replies 1 ·
Why are members AC and DC two-force members with 600 N applied force?
- eurekameh
- · Replies 9 ·
What I consider to be a very hard spring-potential energy problem
- Patdon10
- · Replies 5 ·
Semantics regarding Work problems
- PigletChops
- · Replies 5 ·
Elementary Physics - Energy Related Problem
- Valedictorian
- · Replies 2 ·
Electric field at point P from a uniformly charged rod
- Latios1314
- · Replies 6 ·
What is the Relationship Between Mass of Earth and Velocity of Orbit?
- Kyle91
- · Replies 22 ·
Two masses attached to a spring
- guru1323
- · Replies 7 ·
Roller coaster speed at top of 46m loop with normal force equal to weight
- SherBear
- · Replies 8 ·
How much force is needed to tip a box with given dimensions and weight?
- poyganhunter
- · Replies 2 ·
A block of mass 100 kg is being moved steadily by pulling on a rope at
- jigoku_snow
- · Replies 1 ·
What is the coefficient of performance of this refrigerator?
- sltungle
- · Replies 2 ·
Two trains travel. Based on their leghths, mesure
- MissJewels
- · Replies 1 ·
What Must Superman's Initial Velocity Be to Save the Falling Student?
- ash312
- · Replies 1 ·
Physics Riding a loop-the-loop?
- Eats Dirt
- · Replies 1 ·
How much additional altitude can rocket obtain with launch assist.
- Futabo
- · Replies 1 ·
Einstein's train (simultaneity)
- sunrah
- · Replies 1 ·
Basic electrostatics's potential difference question.
- vkash
- · Replies 2 ·
Find the angle the boat has to head
- Goopy17
- · Replies 1 ·
How Do Capacitors Charge in a Circuit with Multiple Batteries?
- sabak22
- · Replies 3 ·
The arm of a crane at a construction site is 15.0 m long
- DrunkApple
- · Replies 3 ·
How do transformers affect power transmission in a circuit?
- titanium90
- · Replies 5 ·
Calculating Change in Kinetic Energy for a Crate Pulled Up an Incline
- BallerRegis
- · Replies 3 ·
Pendulum Problem with unknown angle
- jg727
- · Replies 3 ·
Kinetic Energy Change of a Cart on a Frictionless Surface
- DavidAp
- · Replies 4 ·
Understanding Buoyancy: Answering the Question on Stone Immersion
- physics kiddy
- · Replies 5 ·
What is the radial acceleration of a pendulum at a given angle?
- jg727
- · Replies 1 ·
Launch speed to reach a given orbital altitude
- horsecandy911
- · Replies 1 ·
Finding Work along a displacement
- c42
- · Replies 4 ·
Phase difference between radio wave sources at detector
- KingBigness
- · Replies 3 ·
Why do the centripetal and gravitational force equal each other in orbit?Also
- MakeItThrough
- · Replies 2 ·
Projectile Motion on a Ramp: Solving for Distance, Time, and Velocity
- Becca93
- · Replies 1 ·
Finding distance through a velocity-time
- Becca93
- · Replies 1 ·
A question involvingn safe working voltage and capacitors?
- jackcie
- · Replies 1 ·
Solving tension equations with trig.
- sdoi
- · Replies 1 ·
Estimating Heart Power Output for Humans Standing/Lying Down
- gunster
- · Replies 1 ·
How Is the Radius of Curvature 8.68 mm Calculated for a Lens?
- roam
- · Replies 1 ·
Comparing acceleration and impulse in car collisions with different masses
- jsr219
- · Replies 1 ·
Finding distance with Kinematics
- Becca93
- · Replies 6 ·
Diameter and Fundamental Frequency
- mtreichl
- · Replies 1 ·
Where to place vent holes for third and fourth modes in an open pipe
- mtreichl
- · Replies 1 ·
Settting up force problem with only mass and velocity provided
- Zontar
- · Replies 1 ·
What does this equation mean? Physics Work.
- DavidAp
- · Replies 3 ·
Changing Magnetic field inducing an electric field
- Silversonic
- · Replies 1 ·
Why does camera flash make images brighter but the background dark?
- Celluhh
- · Replies 13 ·
What is meant by lateral displacement?
- misz_sunshine
- · Replies 2 ·
Finding distance from sonic boom
- leinad0213
- · Replies 2 ·
FBD of centripetal acceleration
- loopsnhoops
- · Replies 4 ·
Signal and Time Displays in Everyday Devices
- Badger33
- · Replies 1 ·
Finding length with two given frequencies
- leinad0213
- · Replies 1 ·
Sonic boom heard in how much distance x?
- leinad0213
- · Replies 1 ·
Atwood Machine: Find m1's Descent and Velocity
- physics_geek
- · Replies 2 ·
How far does Joe fall when Anastasia falls from a tree?
- jojo711
- · Replies 1 ·
Two dimensional collision. Center of mass reference frames?
- yigh
- · Replies 1 ·
Finding moment of inertia for a right circular cone
- jforce93
- · Replies 2 ·
Work, tension and conservation of energy
- ex81
- · Replies 1 ·
Calculating Stopping Distance with Spring Forces and Friction
- wxscientist
- · Replies 1 ·
How Does a Particle's Kinetic Energy Affect Its Wave-Particle Duality?
- hxcguitar101
- · Replies 3 ·
Model rocket constant acceleration reaching 76 m in 7.2 s
- jojo711
- · Replies 18 ·
Why does a spherical lens/mirror have spherical aberration.
- wyosteve
- · Replies 2 ·
Graphing the superposition of three waves
- Jettaisthebes
- · Replies 15 ·
What is the Maximum Height of a Vertically Thrown Rock?
- jojo711
- · Replies 10 ·
Motion in a plane II, Coin on a turntable with Vmax
- SherBear
- · Replies 8 ·
Differential Equation of a moving car with drag
- santais
- · Replies 7 ·
Calculating Magnetic Force on Bent Wire in a Magnetic Field
- blackbyron
- · Replies 1 ·
Coulomb's law and electric fields
- BobRoss
- · Replies 18 ·
Conservation of linear momentum and acceleration due to gravity.
- vkash
- · Replies 7 ·
Pushing block C so block A rises at 3 m/s²
- robkom
- · Replies 5 ·
Angle of Tension b/w 2 Dogs Pulling Ropes?
- Nano-Passion
- · Replies 3 ·
Maximum Height of Vertically Thrown Rock
- jojo711
- · Replies 2 ·
What is the Tension and Stretching of Spider Silk in Equilibrium?
- michael1291
- · Replies 7 ·
A 30 kg child moving at 4 m/s jumps onto a 50 kg sled that is initiall
- chicagobears
- · Replies 2 ·
Can force in Newtons be negative?
- zoezoehzoe
- · Replies 4 ·
Finding Velocities of Two Points on a Ladder at a 60-Degree Angle
- karkas
- · Replies 6 ·
Simple Harmonic motion of buoyant force
- Jake4
- · Replies 3 ·
Weird 2-spring problem with VERY limited data
- McFate
- · Replies 3 ·
Coefficient of kinetic friction on wooden plane question
- Daved
- · Replies 2 ·
Solving a Friction Problem with a 32° Ramp
- egrus8
- · Replies 3 ·
Answer Conical Pendulum: Determine Angle in Car Traveling Circular Road
- neoh147
- · Replies 3 ·
Standing waves and banjo string
- phyzeek
- · Replies 5 ·
Deriving acceleration equation for two-block pulley system
- punyhuman92
- · Replies 6 ·
Why can't i see people on the other side of tinted windows?
- Celluhh
- · Replies 5 ·
What Happens to Induced EMF When a Magnet is Placed in the Middle of a Coil?
- jsmith613
- · Replies 2 ·
Can 3 Force Members Be Collinear?
- pyroknife
- · Replies 1 ·
Finding radius of satellite in orbit given mass and rotational period
- csgirl504
- · Replies 2 ·
Finding spring constant of mass
- Smartguy94
- · Replies 8 ·
How Do You Integrate When F and r Are Vectors?
- Sefrez
- · Replies 1 ·
Solving for velocity in a time dilation round trip problem
- erincaldwell
- · Replies 2 ·
Calculating the change of momentum in a system
- cheetogrease
- · Replies 1 ·
Finding Force then converting to work
- cjknowland
- · Replies 1 ·