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 Much Work is Needed to Push a Car Up an Incline?
- Interception
- · Replies 1 ·
Work and kinetic theorem problem using friction
- Qedpower
- · Replies 8 ·
Electrostatics (Gauss’s law for sphere)
- roam
- · Replies 3 ·
Sign convention in the Schrödinger wavefunction exponential
- sarvesh0303
- · Replies 3 ·
How would you go about solving this Work-kinetic energy thorem?
- Merlan114
- · Replies 1 ·
Work and energy of block of mass
- phospho
- · Replies 7 ·
Can You Solve This Physics Problem on Kinetic and Potential Energy?
- riseofphoenix
- · Replies 14 ·
Collision and Conservation of Momentum
- maulucci
- · Replies 4 ·
Work-Energy Incline Problem with Two objects
- mcmahc
- · Replies 1 ·
Gravitational Effects of a Hollow Spherical Shell
- johnhuntsman
- · Replies 2 ·
Calculating Aircraft Range and Endurance Using De Breguet Formula
- AlphaCharlie
- · Replies 1 ·
Displacement/ Velocity/ Acceleration Clock Question
- popmop2
- · Replies 5 ·
Different Tensions Acting on a Weight
- student34
- · Replies 1 ·
Calculate Force Constant of Spring: Vibrational Frequency 7.00/s
- XwakeriderX
- · Replies 1 ·
Finding the minimas from EM radiation.
- sg001
- · Replies 5 ·
Position equation x = 3.00t² - 2.00t + 3.00: find speed and acceleration
- Ammar w
- · Replies 6 ·
Extra Credit- Taco Cannon Projectile (how do I find the function of the curve?)
- ChiralWaltz
- · Replies 4 ·
What Is the Main Force Driving a Car's Acceleration?
- davon806
- · Replies 2 ·
Kinetic energy of roller coaster at 11 m height
- slcxow
- · Replies 1 ·
How to Solve for atan when an object turns 60 degrees
- TamuNinja
- · Replies 1 ·
Is the net torque calculated correctly in both pictures?
- davon806
- · Replies 9 ·
Horzontal Massive Pulley Problem with Friction
- Kristenx2
- · Replies 7 ·
Finding acceleration when a 5kg mass is doubled in a pulley system
- jk13
- · Replies 4 ·
Finding force from work done pushing refrigerator up ramp
- Merlan114
- · Replies 5 ·
Calorimetry Problem, calculating the specific heat of a unknown substance
- klawlor419
- · Replies 2 ·
Calculating EMF in Windings of a Cylinder (60cm x 5cm) for 6mV
- Chemist@
- · Replies 2 ·
Find unknown EMF magnitude in circuit
- sabak22
- · Replies 13 ·
Spring constant from mass released by compressed spring
- CAPA
- · Replies 3 ·
Net torque on pulley system with two counterclockwise pulleys
- pmalayavech
- · Replies 13 ·
How Do Two Masses and Three Springs Interact with a Dashpot?
- a.man
- · Replies 9 ·
Bernoulli Equation and flow loss
- danny_smith
- · Replies 10 ·
Why does power series expansion show limits between quantum and classical formulas?
- CAF123
- · Replies 3 ·
Verify (or Disprove) the Solution to a Physics Problem
- Syrus
- · Replies 1 ·
Ladder leaned against a wall; forces
- kffd
- · Replies 11 ·
Power Plants Storing Energy in Massive Flywheels
- Treefolk
- · Replies 6 ·
Find the speed of a knot on rope
- VHAHAHA
- · Replies 29 ·
Calculating Electric Potential at a Point
- swrs92
- · Replies 7 ·
Balancing Moments: Solving for Distance in a Force System Resultant
- overside
- · Replies 1 ·
Small mass attached to a string sliding between two circles
- sharkmanic
- · Replies 1 ·
Forces in equilibrium. Tension, ring on string.
- afrocod
- · Replies 13 ·
Calculating equilibrant in regular hexagon
- sareba
- · Replies 4 ·
Calculating Acceleration and Tension in a Rope and Pulley System
- PhysicsNoob76
- · Replies 5 ·
Quidditch projectile motion homework
- AmyPond
- · Replies 1 ·
Atwood's Machine: Calculating Velocity and Angular Velocity
- icf927
- · Replies 12 ·
Central mass in pulley system: vertical displacement vs horizontal distance
- Violagirl
- · Replies 14 ·
Why does the air flow faster over the top of the aerofoil than underneath?
- 06mangro
- · Replies 20 ·
Physics Introductory Diffraction Pattern Problem
- RandallK
- · Replies 1 ·
Conservation of Energy/Force in Bungee Jumping
- dtseng96
- · Replies 8 ·
Box moving on a decelerating truck?
- dtseng96
- · Replies 3 ·
Sound Intensity Level of Three Objects
- songoku
- · Replies 14 ·
Physics problem using Newton's laws how to solve?
- ax308
- · Replies 3 ·
What does KE equal in this impossible physics problem?
- riseofphoenix
- · Replies 13 ·
Depth of a finite square potential problem
- aglo6509
- · Replies 3 ·
What Is the Speed of a Rolling Disk's Center of Mass?
- MG5
- · Replies 16 ·
Centripetal acceleration/ angular velocity question
- carsonk152
- · Replies 1 ·
Graviational acceleration given mass and radius
- gh_pluvilias
- · Replies 2 ·
How much gold did the goldsmith steal from King Hero's crown?
- Workout
- · Replies 1 ·
Resultant Force on an object during Non-Uniform Motion
- mldavis086
- · Replies 5 ·
Can Kinetic Energy be Generated without Initial Speed?
- sgstudent
- · Replies 5 ·
Solving the Synchronized Oscillation of Two Pendulums
- idkgirl
- · Replies 4 ·
How would you go about finding the force of this object?
- Merlan114
- · Replies 1 ·
Centripetal Acceleration of two masses when one mass is half a radius away
- anomalocaris
- · Replies 9 ·
Child jumping onto spinning merry-go-round rotation rate
- icf927
- · Replies 9 ·
Is the conservation of energy being applied correctly in this scenario?
- Kuklinski
- · Replies 1 ·
How Long Until 24Na Decays from 5μg to 1μg?
- kkid
- · Replies 3 ·
Finding acceleration of 9N block relative to pulley
- pcpssam
- · Replies 1 ·
Solve Pendulum Swing Angle Problem - Physics Adorers
- phunphysics2
- · Replies 4 ·
Does a falling ball have constant acceleration of 9.8 m/s² from the start?
- ASidd
- · Replies 2 ·
Potetial energy change during heating
- sgstudent
- · Replies 7 ·
Pressure of gas when temperature and volume increases
- sgstudent
- · Replies 6 ·
Calculating Escape Velocity of the Moon
- ASidd
- · Replies 1 ·
Calculating Sound Velocity and Time Dilation in General Relativity
- Physicist1231
- · Replies 20 ·
Proving c = acosB + bcosA in Triangle ABC using Vector Method
- Dumbledore211
- · Replies 18 ·
Are the Final Velocities of Two Blocks After an Elastic Collision Correct?
- phunphysics2
- · Replies 1 ·
Velocity of snapium given constant and weight
- nlingraham
- · Replies 1 ·
Resultant of three forces about a point O
- BigJon
- · Replies 1 ·
Energy inside a cyclotron, and the frequency of circular motion
- Parad0x88
- · Replies 2 ·
What are the components of force on a swinging bar at a specific instant?
- renn12
- · Replies 1 ·
Having trouble with a center of mass problem
- Syrus
- · Replies 3 ·
Physics lab; deriving for μs and μk
- Tuccimane
- · Replies 1 ·
Rotational Dynamics, Torque, and Tension
- mirahj
- · Replies 4 ·
Forces between two blocks on a frictionless surface
- Carmey
- · Replies 5 ·
Calculating Gravitational Potential and Energy for Earth and Mars
- athymy
- · Replies 18 ·
Where exactly is the battery in this diagram
- jey1234
- · Replies 2 ·
Car collision with momentum conservation in 2D
- Arooj
- · Replies 3 ·
How Do You Calculate Braking Force Without Kinetic Energy?
- rokr32
- · Replies 1 ·
What Is the Time Constant and Potential Difference in This RC Circuit?
- letsgo
- · Replies 6 ·
Req of this series/parallel circuit?
- letsgo
- · Replies 5 ·
Simplifying Complex Resistor Circuits
- jey1234
- · Replies 5 ·
Elastic Collision Problem - pretty sure my answer isn't right.
- gh_pluvilias
- · Replies 4 ·
Impulse problem about a medical biopsy needle.
- tbarker5
- · Replies 6 ·
Newtons 3rd Law (Ropes, Pulley)
- PhysicsNoob76
- · Replies 6 ·
Ball thrown horizontally from window: finding initial velocity
- SigFig
- · Replies 1 ·
What is the Final Velocity of Cart A After an Elastic Collision?
- SherBear
- · Replies 12 ·
Spring launches 0.1kg ball: kinetic energy, momentum, collision
- bobo2210
- · Replies 5 ·
How Does a Compressed Spring Affect a Ball's Motion and Energy?
- bobo2210
- · Replies 4 ·
Rip time of a string or thread pulled from both sides
- ninuzzo
- · Replies 8 ·
Dynamics. Inclined plane with friction coefficient
- Pepealej
- · Replies 5 ·