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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Baseball: Rising and Falling speed
- Trizz
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How much work is required to stop a moving block?
- ddn87
- · Replies 5 ·
Finding Current in a Long Solenoid
- missyc8
- · Replies 2 ·
How Do Weight Distribution and Torque Affect Scale Readings?
- jibjab
- · Replies 1 ·
Car rolling off cliff and falling package kinematics
- Trizz
- · Replies 5 ·
Particle Motion with Constant Acceleration
- Loppyfoot
- · Replies 8 ·
Circular Motion Conceptual Physics - Space Station
- Dysprositos
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How do you calculate circular acceleration and force for a racing car?
- itsmarasilly
- · Replies 6 ·
Finding resultant magnitude and location of a distributed load system
- Dellis
- · Replies 4 ·
Rocket equation: what fraction remains after reaching 1100 m/s exhaust speed?
- gadabout1018
- · Replies 3 ·
Heat needed to double gas volume at constant pressure
- Quelsita
- · Replies 5 ·
How Can You Solve a Linear Kinematics Problem Involving Two Accelerating Cars?
- andysmax
- · Replies 3 ·
Drag Racing Cars: Physics Project Ideas
- breakdown904
- · Replies 3 ·
How far does Sam land from the base of the cliff?
- xstetsonx
- · Replies 4 ·
Center of mass of two metal solids.
- chenying
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Calculating the Spring Constant for a 9.10 kg Mass on a Vertical Spring
- BHFCBabe
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Radial Acceleration and Gravitational Force of the Sun in the Milky Way Galaxy
- crazuiee
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Finding coefficient of friction for mass on incline pulled by hanging mass
- fishfish
- · Replies 1 ·
Solving a Two-Puck Collision on an Air Hockey Table
- physics10189
- · Replies 3 ·
Finding v(t) and x(t) for motion with quadratic drag force
- joemama69
- · Replies 1 ·
Physics Lab Question - Where To Begin
- Danneskjöld
- · Replies 4 ·
Wedge and block system with friction
- wing_88
- · Replies 2 ·
Find tensions in two strings supporting a rotating mass
- joemama69
- · Replies 1 ·
Electric field sphere with inner cavity
- jackxxny
- · Replies 13 ·
Calculating Acceleration of Connected Blocks on a Wedge
- wing_88
- · Replies 2 ·
Inelastic collision between 2 objects
- wing_88
- · Replies 2 ·
Calculating Maximum Height and Horizontal Range of 0.25kg Skeet
- wing_88
- · Replies 1 ·
Force per unit length on the wire in the bottom left hand corner.
- missyc8
- · Replies 1 ·
Maximum resolution by quantum mechanics
- lagwagon555
- · Replies 1 ·
How Is Average DC Output Calculated for a Half-Wave Rectified Sine Wave?
- zigg
- · Replies 1 ·
How Much Thrust Does a 1W Flashlight Emit?
- jacobgong
- · Replies 3 ·
Work done by gravity on block sliding down incline
- TheNextOne21
- · Replies 3 ·
How Much Power Does an 8.00A, 115V Circuit Generate?
- dramaqueen
- · Replies 1 ·
Basketball game problem- projectile motion
- mmoadi
- · Replies 1 ·
How Does Tension Affect Motion in Atwood's Machine?
- Chandasouk
- · Replies 3 ·
Which reacted faster, foot or hand?
- lostsummer
- · Replies 1 ·
How Much Acceleration Can a Man Generate While Towing an Airplane?
- wanos
- · Replies 6 ·
Static Electricity on metal sphere
- DarkPhoenix
- · Replies 3 ·
Spin and gravity of earth, no math
- fenixbtc
- · Replies 1 ·
Analysis of an L-R-C Series Circuit
- sully677
- · Replies 3 ·
Centripetal acceleration problem (very easy)
- coding_delight
- · Replies 5 ·
Which of these possibilities will produce emf
- songoku
- · Replies 6 ·
Conservation of Energy fusion reaction
- crybllrd
- · Replies 1 ·
A block sliding up a ramp, solve for acceleration
- acid234
- · Replies 2 ·
Finding capacitance per unit length
- tnutty
- · Replies 1 ·
How to Calculate the Length of a Copper Wire Based on Resistance?
- dramaqueen
- · Replies 1 ·
Ball thrown from window at 9 m/s, 16° below horizontal, lands after 5 s
- xjasonx1
- · Replies 3 ·
Simple harmonic motion with an amplitude
- physics_geek
- · Replies 3 ·
Kinematics Final Velocity Question
- SkiingAlta
- · Replies 13 ·
Drawing a free body diagram problem
- Chandasouk
- · Replies 3 ·
Work Done on 10kg Cart on Frictionless Surface: 11m
- r34racer01
- · Replies 3 ·
Determine the depth of a swimming pool filled with water
- Sammiebaby966
- · Replies 8 ·
How Much Power Does a Cheetah Generate During Acceleration?
- triplel777
- · Replies 8 ·
What Are the Frictional Forces in a Modified Atwood's Machine Experiment?
- krazy19812
- · Replies 4 ·
Motion of two trains physics problem
- ur5pointos2sl
- · Replies 8 ·
Movement of particles in Magnetic Field
- Suy
- · Replies 5 ·
Tension in rope supporting a climbing gymnast
- Chandasouk
- · Replies 4 ·
Conservation of Energy Possibly
- Heisenberg.
- · Replies 7 ·
Is the Capacitance of a Twin Lead TV Antenna Cable Within Specifications?
- tnutty
- · Replies 3 ·
How Is Momentum Conserved in a One-Dimensional Collision?
- Soph
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Dot product and cross product problem
- tballs
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Why Are My Elevator Tension Calculations Incorrect?
- ur5pointos2sl
- · Replies 7 ·
Finding Speed on an incline when Power is known.
- ddn87
- · Replies 4 ·
What is the speed of an athlete landing in a long jump with known range, angle, and height?
- zman2011
- · Replies 1 ·
Inclined plane w/ friction problem
- peachy112girl
- · Replies 1 ·
How Can Engineers Design a Temperature-Independent Resistor?
- ktobrien
- · Replies 7 ·
What is the change in kinetic energy of block A as it moves up the incline?
- madcat1090
- · Replies 7 ·
Projectile Motion: Calculate the speed of the plane
- ntox101
- · Replies 4 ·
AP Physics C: Solving Energy Homework Equation
- SHawking
- · Replies 2 ·
What Speed Does the Athlete Land in Long Jump?
- zman2011
- · Replies 8 ·
Minimum Wavelength of Electron Accelerated in TV at 30,000 V
- zoner7
- · Replies 3 ·
Acceleration plus velocity question? ?
- bobsagget
- · Replies 2 ·
Calculating Average Acceleration in an Acceleration Test
- CraZyFanAtiC
- · Replies 2 ·
Acceleration of a Block on pulley
- KillerZ
- · Replies 5 ·
Quantum energy level, calcualting total energy
- lagwagon555
- · Replies 2 ·
How Do Forces Affect Motion in Different Scenarios?
- xgrape01
- · Replies 1 ·
Applied force on two blocks on a horizontal frictional plane
- lilaznjewel
- · Replies 6 ·
Work done by forces pulling a sled at constant speed
- Jac8897
- · Replies 2 ·
Acceleration of two masses and tension.
- cruisx
- · Replies 2 ·
How the coefficient of static friction works
- mvantuyl
- · Replies 2 ·
Ship moving at constant velocity between two radar positions
- Loppyfoot
- · Replies 4 ·
How Much Should a Spring Be Compressed for a Roller Coaster to Complete a Loop?
- stella77
- · Replies 3 ·
How Is the Shortest Stopping Distance Calculated for a Wet Road?
- 94strat
- · Replies 9 ·
Determining Yellow Light Timing for Intersection Safety
- ilovephysics9
- · Replies 6 ·
Roller coaster minimum speed around loop and effective weight
- and9
- · Replies 1 ·
Force acting on a block against a wall
- phm
- · Replies 4 ·
Determining the density of Silicon
- weston_sagle
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Why Are My Calculations for the Window Washer's Pulley System Incorrect?
- VVV
- · Replies 5 ·
Exciting an electron in a hydrogen atom.
- weston_sagle
- · Replies 1 ·
Maximum angular velocity of coin on turntable before sliding
- Mirole
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Circular motion problem no idea what's going wrong ><
- irNewton
- · Replies 1 ·
Can Standing Up Change How We Measure Earth's Size?
- SimpliciusH
- · Replies 10 ·
Simple Spring Question (Hooke's Law)
- Gotejjeken
- · Replies 2 ·
Solving Online Motion Problems: Understanding Velocity and Slope
- sickphysic
- · Replies 5 ·
Biot Savart, Intersecting Currents, and Calculating Magnetic Fields
- cwatki14
- · Replies 5 ·
Velocity of a satellite in an elliptical orbit
- ehilge
- · Replies 8 ·
Calculating Negative Electric Charge of Oxygen Gas at STP
- dtrain121
- · Replies 3 ·
How Do Two Blocks Collide Again After an Elastic Collision?
- stella77
- · Replies 2 ·
How Do You Calculate the Slope Angle of a Road When a Car Ascends?
- Bryon
- · Replies 6 ·
Calculating Angle of Elevation & Initial Speed of Projectile from a Gun Fire
- ur5pointos2sl
- · Replies 10 ·