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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Proving T-W=(mv²)/L from conservation of energy
- blayman5
- · Replies 1 ·
Photon energies from hydrogen atoms excited by 12.8 eV electrons
- lebprince
- · Replies 26 ·
Rolling ball on curved track: finding horizontal distance x
- Kamkazemoose
- · Replies 1 ·
Find the magnitude of the horizontal force exerted by the lower hinge
- angel120
- · Replies 1 ·
Why Doesn't Momentum Conservation Apply to a Cart with a Sail?
- #H34N1
- · Replies 5 ·
What is the force exerted on a 380 kg piano on a ramp with an incline of 27*?
- lemonlee
- · Replies 5 ·
Friction problem involving 2 blocks sliding in 2 directions with 2 frictions
- 2FAST4U8
- · Replies 1 ·
Finding vertical force on beam with cable-supported floodlight
- xregina12
- · Replies 1 ·
What is the net torque on the system
- Guruu
- · Replies 2 ·
Calculate Change in Volume of Seawater at 10.9 km Depth
- asleight
- · Replies 10 ·
How Is Displacement Calculated in a Shear Strain Scenario?
- asleight
- · Replies 1 ·
Young's Modulus: maximum depth of mine
- mmylo
- · Replies 1 ·
Centripetal Force Proportionality Check
- Weird Fishes
- · Replies 10 ·
How Does an Impulse Affect Amplitude and Frequency in Oscillatory Motion?
- dsptl
- · Replies 3 ·
When does the ball start rolling without slipping?
- brethman86
- · Replies 7 ·
How Does Amplitude Influence a Pendulum's Period?
- Dynamite
- · Replies 4 ·
Calculate the work done by the force
- pph1011
- · Replies 3 ·
How Does Firing a Machine Gun Affect the Movement of a Flatcar?
- subwaybusker
- · Replies 2 ·
How Much Work Does a Machine Perform Between 9s and 18s?
- pph1011
- · Replies 1 ·
Solving for Torque, Angular Momentum, and Acceleration in Rotational Motion
- angel120
- · Replies 3 ·
Elastic collision 2 dimension unequal masses not at rest
- grrrphysics
- · Replies 2 ·
Friction - Coin on Rotating LP (solving for mu)
- asc3nd
- · Replies 16 ·
Belt friction - determining angles
- O011235813
- · Replies 3 ·
How Far Must a Sound Source Move to Create Silence Due to the Doppler Effect?
- beastysk8er
- · Replies 1 ·
Angular Momentum of a candy dish
- al86
- · Replies 1 ·
The Magnetic Flux through a Solenoid
- marrone
- · Replies 1 ·
Find the final velocity of the railroad car.
- ScullyX51
- · Replies 2 ·
Solving Quantum Objects to Energy-Level Diagrams
- lebprince
- · Replies 1 ·
Finding amplitude of 12.5 kg mass on spring with initial conditions
- ultrapowerpie
- · Replies 1 ·
Maximum overhang of top brick before tipping
- future_vet
- · Replies 7 ·
Friction on top of object with frictionless surface?
- lax1113
- · Replies 6 ·
Finding the Threshold Force for a Bike Wheel and Step to Lose Contact
- plutonium
- · Replies 3 ·
Non-Uniform Bar Torque and Tension Calculation
- Inertialforce
- · Replies 5 ·
Ball rolling down a frictionless plane?
- physics_liker
- · Replies 6 ·
How to Calculate the Velocity and Impact Speed of a Ball Launched by a Spring?
- bmandrade
- · Replies 4 ·
Simple (Frustrating) Combined Gas Law Problem
- DDNow
- · Replies 3 ·
Steel beam tipping point with person walking toward end
- halo9909
- · Replies 3 ·
Minimum Diameter for Steel Wire: Solve It Now
- asleight
- · Replies 4 ·
Time it takes to hit the ground
- SunKissedGal1
- · Replies 2 ·
Compression of a sphere underwater
- ultrapowerpie
- · Replies 7 ·
Charge by Contact: Net Charges on Each Sphere?
- kiplings01
- · Replies 2 ·
Electroscope leaves: charges after rod, grounding, and discharge
- kiplings01
- · Replies 2 ·
What Affects the Electric Field on Point P on a Charged Sphere?
- kiplings01
- · Replies 2 ·
Finding Time when throwing an object up
- SunKissedGal1
- · Replies 3 ·
Where should Harris lift a surfboard if Paul lifts with 85 N?
- halo9909
- · Replies 2 ·
Magnitude of Acceloration problem
- SunKissedGal1
- · Replies 8 ·
Centripetal Force: Tire Radius Calculation for 5.0 10-3 kg Stone
- bblake2010
- · Replies 3 ·
Tensions in a beam supported by cable and hinge
- asleight
- · Replies 7 ·
Calculating Final Velocity in a Totally Inelastic Collision
- bmandrade
- · Replies 3 ·
Calculating Speed in an Inelastic Collision
- jessguy
- · Replies 5 ·
S.I.N. 72 Question - Angular Velocity?
- Suck at This
- · Replies 1 ·
Total extension of steel and brass wires under 80 N load
- chaz699
- · Replies 4 ·
Conservation of energy of a roller coaster car problem
- bmandrade
- · Replies 5 ·
Momentum and impulse of a volleyball
- *intheclouds*
- · Replies 9 ·
Why is total system momentum zero when a ball falls to h/2?
- Husker70
- · Replies 1 ·
Calculating Forces in a Static Equilibrium Bridge System
- akan
- · Replies 5 ·
How Does Impulse Affect the Horizontal Speed of a Softball?
- *intheclouds*
- · Replies 11 ·
Solving Momentum and Speed: 1500kg Car Moves 25 m/s
- Husker70
- · Replies 2 ·
Dog walking on a boat: how much closer to shore?
- Kudo Shinichi
- · Replies 1 ·
Forces and laws of motion worksheet-Newtons first law
- meredith
- · Replies 1 ·
What Limits a Car's Acceleration at Zero Velocity?
- fk378
- · Replies 3 ·
Calculating Ek At a specific point
- Articulum
- · Replies 6 ·
Impulse and momentum of a sled
- Jennifer001
- · Replies 4 ·
What is the peak force between two pool balls in a pool shot?
- fk378
- · Replies 3 ·
Angular velocity of a small object
- maevis18
- · Replies 3 ·
Minnie and Mickey elastic collision on a wedge and table
- dban33
- · Replies 3 ·
How to Calculate the Elongation of a Spring with a Submerged Block?
- dban33
- · Replies 3 ·
Calculating Angular Velocity and Torque of Big Ben's Hands
- dban33
- · Replies 3 ·
Collision of Balls - Coefficient of Restitution
- prateek_34gem
- · Replies 3 ·
Can someone check my answers (Closed and open tubes)
- viciousp
- · Replies 3 ·
D)We can use the same formula as in part A. L = 343 m.s / 466.2 HzL = 0.737m
- SEEDS
- · Replies 13 ·
Solving Mappings Problem: Onto, One-to-One and Co-domain
- jackiemoon
- · Replies 1 ·
Damped Oscillator Problem - Very Hard
- Dillio
- · Replies 2 ·
Calculating the Final Image Location in a Compound Lens System
- jcvince17
- · Replies 3 ·
Calculate Local g on Small Planet: 3.70g Wire, 3.00kg Mass, 43.6ms Pulse
- lulu16
- · Replies 1 ·
Calculating coefficient of kinetic friction through angular acceleration
- xregina12
- · Replies 2 ·
What Is the Speed of a Ball After Bouncing Off a Charging Elephant?
- vortec135
- · Replies 1 ·
How Do You Calculate Rocket Propulsion and Acceleration?
- redred7
- · Replies 1 ·
Tension in a conical pendulum with 500g ball and 1.0m string
- pammy345
- · Replies 1 ·
Finding activity of potassium-40 in the human body
- pearlblack
- · Replies 2 ·
How Does Angular Momentum Affect Projectile and Rod System Post-Collision?
- jessedevin
- · Replies 1 ·
Help with physics problems 2, 6, 7, and 8
- asdfsystema
- · Replies 7 ·
Water squirting from dyke hole: projectile motion and continuity equation
- dban33
- · Replies 3 ·
Freezing Water: 100cm³ of Water vs. Ice Cube
- nyrychvantel
- · Replies 5 ·
How Do You Calculate Initial Velocity from Jump Height?
- btr94
- · Replies 1 ·
Solving for Angular Velocity and Torque: Big Ben Minute and Hour Hands
- dban33
- · Replies 1 ·
Finding spring elongation with spring constant, mass and density
- dban33
- · Replies 3 ·
Electrical energy to heat energy
- jaredmt
- · Replies 1 ·
Solve Snell's Law Problem: Determine θ
- haxxorboi
- · Replies 3 ·
Calculating Angular Momentum: Uniform Rod and Point Mass Collision
- avenkat0
- · Replies 1 ·
Finding Tension and Acceleration on Frictionless Surfaces
- m.piet
- · Replies 1 ·
Torque. I thought i understood it. Obv I don't.
- DDRchick
- · Replies 8 ·
How Do You Calculate Tension and Reaction Forces in a Leaning Broom Problem?
- ultrapowerpie
- · Replies 1 ·
Finding mass ratio and combined acceleration from force and accelerations
- physics_geek
- · Replies 2 ·
Work done pulling a 50 kg crate with a monkey jumping on halfway up
- sweedeljoseph
- · Replies 1 ·
Integration, where am i going wrong here?
- devanlevin
- · Replies 4 ·
Momentum Change and Impulse in Colliding Balls
- soupastupid
- · Replies 1 ·
Coefficient of friction along an inclined plane
- Ulti
- · Replies 7 ·
Solving for Magnetic Field Strength given Induced voltage in a coil
- under_par_00
- · Replies 1 ·
Trampoline stretch from 10m vs 20m height
- vpv
- · Replies 11 ·