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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Solving Two D Kinematics: Find Acceleration Vector
- Grapz
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Net force and speed for skier on 35-degree slope
- Oliviam12
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Normal force on dolly and floor with unknown dolly mass
- jlk
- · Replies 1 ·
How much would the earth recoil or move if (energy/collision?)
- gills
- · Replies 1 ·
Really on simple energy and spring on incline
- B-80
- · Replies 4 ·
Designing an RC passive high pass filter with 3 kHz cutoff
- bengaltiger14
- · Replies 4 ·
How can the charge of an ion be determined using the equation F = qv x B?
- wiz0r
- · Replies 5 ·
Kinetic Energy Exploding Question
- shell4987
- · Replies 5 ·
Why Doesn't an Egg Break When Caught in a Sheet?
- kmax12
- · Replies 2 ·
Maximum height of stone thrown upward with constant drag force
- sheri1987
- · Replies 4 ·
How Do You Calculate the Thrust of a Rocket at Takeoff?
- kmax12
- · Replies 2 ·
What Determines the Direction of Force on a Car Traveling in a Circle?
- kris_h41
- · Replies 2 ·
Max Dist Frame Moves Down from Initial: 15m
- princessfrost
- · Replies 3 ·
Calculating New Period of a Shrinking Star with Uniform Mass Distribution
- BuBbLeS01
- · Replies 12 ·
Voltage drops across inductors, capacitors and resistors
- gatorgrl1118
- · Replies 2 ·
Calculating Displacement for a 2-D System
- shell4987
- · Replies 2 ·
Resonance and understanding what a resonant is?
- Spookie71
- · Replies 6 ·
Calculating Fragment Speed in an Exploding Object
- chaotixmonjuish
- · Replies 4 ·
Thread Spool Resting on Table: Understanding Lever Arm and Torque
- kris_h41
- · Replies 3 ·
Calculating Acceleration: Basic Question on F=ma in AP Physics
- Oliviam12
- · Replies 2 ·
Is the Path Difference Calculation Correct for Destructive Interference?
- rteng
- · Replies 8 ·
Speed of ball shot from spring gun with 1.5 m drop
- Jtappan
- · Replies 1 ·
Finding minimum wire angle to hang a 30N sign from ceiling hooks
- KatieLynn
- · Replies 1 ·
What Is the Initial Speed of a Bullet Fired into a Block?
- Rubi22
- · Replies 1 ·
Calculate Tension in rope pulled up a hill
- winston2020
- · Replies 5 ·
Forces involving a pulley sysem.
- grouchy
- · Replies 2 ·
Trunk pulled up 20° incline: normal force, constant velocity, and acceleration
- KatieLynn
- · Replies 1 ·
Conservation of momentum of a boxcar
- kmax12
- · Replies 3 ·
How Far Up an Incline Does a Released Spring-Compressed Object Travel?
- Jtappan
- · Replies 1 ·
Calculating Vehicle Speed at Impact: The Equation and Variables
- ninjaattackcat
- · Replies 2 ·
Calculating Height of a Pebbled Launched by a Catapult
- Jtappan
- · Replies 1 ·
Relating Momentum and Kinetic energy in collision
- gills
- · Replies 15 ·
What are the possible directions for cross products involving three vectors?
- Ryo124
- · Replies 4 ·
Superman stopping a moving train with momentum
- BuBbLeS01
- · Replies 8 ·
How Much Work Does Friction Do on a Skateboarder Descending a Ramp?
- Jtappan
- · Replies 2 ·
Calculating Force Exerted on Football Tackler
- mathcrzy
- · Replies 5 ·
How Is Work Done by Friction Calculated on a Quarter Circle Ramp?
- Jtappan
- · Replies 1 ·
Work Energy Problem: Calculating Distance with Friction
- Jtappan
- · Replies 1 ·
Calculating the Vertical Displacement of a Block After a Bullet Collision
- mathcrzy
- · Replies 5 ·
Police car catching speeding car with time-dependent acceleration
- jryan422
- · Replies 3 ·
In what direction does a compass needle point?
- Ryo124
- · Replies 2 ·
Circular Motion of a ball Problem
- cse63146
- · Replies 6 ·
What is the average force exerted on a falling diver?
- BuBbLeS01
- · Replies 14 ·
Spring Constant Homework: Find Block's Speed, Compression, and Height
- Jtappan
- · Replies 1 ·
Calculating Speed of Cart at Positions 1, 2, and 3
- Jtappan
- · Replies 1 ·
Thermal Expansion of Gas in a Tank
- slong89
- · Replies 2 ·
Calculating Sliding Friction Coefficient (μ) for Car on Icy Road
- lim
- · Replies 5 ·
Force (object is suspended connected to a block on table and pulled up)
- ~christina~
- · Replies 8 ·
Finding the third particle position for a given center of mass
- shell4987
- · Replies 9 ·
Calculating Maximum Speed of a Child on a Swing
- pinkyjoshi65
- · Replies 10 ·
Tv electron and earth magnetic field
- Winzer
- · Replies 3 ·
Why does a mass hitting a hinged rod rotate in a single plane?
- captainjack2000
- · Replies 3 ·
Calculating Work and Kinetic Energy in Uniform Circular Motion
- captain.joco
- · Replies 4 ·
Train/Car acceleration/speed problem
- jtbcreek
- · Replies 1 ·
What Is the Change in Momentum of a Golf Ball During Impact?
- BuBbLeS01
- · Replies 1 ·
How Is Spring Displacement Calculated with Zero Acceleration?
- Paulbird20
- · Replies 1 ·
Find the x Coordinate of the Center of Mass of 3 Chocolate Blocks
- Heat
- · Replies 4 ·
Calculating Vertical Height in Ballistic Pendulum Experiment
- princessfrost
- · Replies 2 ·
Will the rope break when the man swings?
- dnt
- · Replies 5 ·
Solving Two Crashing Cars Problem - 11.3152 m/s
- KMjuniormint5
- · Replies 5 ·
Optics, resolution problem sheet
- hayze2728
- · Replies 1 ·
Roller coaster with radius 127 m staying on track at point A
- megaforcetkd
- · Replies 8 ·
Energy niagra falls problem water
- mshah3
- · Replies 1 ·
Why is a particle at rest while accelerating?
- bourne
- · Replies 7 ·
Finding initial velocity with friction and final velocity zero
- Bobalandi
- · Replies 2 ·
Projectile Motion- SPH4U Grade 12 Physics
- AkadouYoroi
- · Replies 1 ·
How Far Does a Rocket Sled Travel with Variable Acceleration?
- eluu
- · Replies 3 ·
Why does 60° give three times the height but same range as 30°?
- pooface
- · Replies 1 ·
How Does Friction Affect the Acceleration and Movement of Stacked Blocks?
- rocomath
- · Replies 2 ·
Thermal energy in boiling water
- mshah3
- · Replies 7 ·
What is the energy consumption at a different temperature?
- mshah3
- · Replies 3 ·
Gravitational Potential Energy of 75-kg Pilot at 1.2 km Height
- pinkyjoshi65
- · Replies 1 ·
Energy from falling water at Niagara Falls (45 m)
- mshah3
- · Replies 9 ·
I'm blind when it comes to angles
- rocomath
- · Replies 1 ·
Calculating Force for 5.0g Object at 11000 g's
- Paulbird20
- · Replies 4 ·
What Angle Causes a Sphere to Begin Sliding?
- Paulbird20
- · Replies 3 ·
Why cars must reduce speed in towns with pedestrians
- pinkyjoshi65
- · Replies 1 ·
Area under a Voltage-against-Resistance graph
- gleeman
- · Replies 7 ·
Calculating Distance Between Two Aircrafts Using Radar Data
- stunning
- · Replies 4 ·
What Are the Tensions Required to Steady a Piano Being Lowered by a Crane?
- TonkaQD4
- · Replies 9 ·
How Does Increasing Inclination Affect Particle Acceleration?
- CathyLou
- · Replies 3 ·
Finding cable tension and moment around point A in a crane
- pooface
- · Replies 9 ·
Rutherford scattering calculation
- strangequark
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What is the maximum reaction time to avoid hitting a deer on the road?
- jello
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Calculate the athletes's velocity
- to143
- · Replies 6 ·
Maximum speed of flatbed truck with copper block before sliding
- apnut821
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When do you use m/s versus m/s²?
- JBemp
- · Replies 2 ·
Average power consumption from 2000 kcal diet and energy to climb Mount Everest
- mshah3
- · Replies 2 ·
Tension in rope holding a hanging 61 kg box at rest
- TonkaQD4
- · Replies 12 ·
The physics of a tea cup on an accelerating airplane
- jess_08
- · Replies 5 ·
Power Generated by 2.5x10^10cc of Rain Falling 1000m in 1 Hour
- bnelson
- · Replies 1 ·
Frictional coin sliding on turntable
- Umphreak89
- · Replies 1 ·
Tennis Racket Dynamics: Impacts, Forces & Weight
- aligass2004
- · Replies 1 ·
Angular momentum of a rotating disk
- aligass2004
- · Replies 4 ·
Solving Collision of Billiard Balls: Speed and Direction
- aligass2004
- · Replies 19 ·
Maximum rpm for coin not to slide on rotating turntable
- Umphreak89
- · Replies 5 ·
20g clay ball at 3.0 m/s east collides with 30g ball at 2.0 m/s north
- aligass2004
- · Replies 13 ·
Finding support forces for a beam with a student standing on it
- aligass2004
- · Replies 19 ·
Conservation of energy in rotational motion
- mit_hacker
- · Replies 5 ·
Why Is Friction Subtracted in Rotational Motion Calculations?
- mit_hacker
- · Replies 3 ·