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 Do You Calculate the Force of Friction for a Moving Car?
- Koyuki
- · Replies 1 ·
Calculating Heat Loss from an Insulated Cup
- jdog6
- · Replies 8 ·
How Does the Radius Affect Angular Momentum of a Cone?
- dowjonez
- · Replies 1 ·
What are the units for m and Delta m in the spring formula?
- SS2006
- · Replies 4 ·
Deriving the Center of Mass of a Cone with Point Facing Downwards
- dowjonez
- · Replies 4 ·
What are some recommended textbooks for college-level algebra-based physics?
- Werg22
- · Replies 1 ·
Solving these non-numerical problems applying work and energy concepts
- jrd007
- · Replies 5 ·
Conservation of momentum in rockets and inelastic collisions
- allstar1
- · Replies 3 ·
I'm so sick of this. (gravitation problem)
- Kenny Lee
- · Replies 5 ·
Photons, wavelengths, and ionization energy
- confusedbyphysics
- · Replies 1 ·
Relative Velocity and Vector Resolution
- Jacobpm64
- · Replies 4 ·
Train rounding curve with swinging chandelier at 18.0°
- agentd00nut
- · Replies 1 ·
Circular Motion: Centripetal Force Comparison Between Andy and Bella
- dekoi
- · Replies 2 ·
Determine Velocity of Electron in Magnetic Field
- Idea04
- · Replies 9 ·
Newton's Second Law and jetpacks
- suspenc3
- · Replies 1 ·
Calculating Forces in Car Accidents
- PhysicBeginner
- · Replies 6 ·
Relative motion/ Vector Question
- suspenc3
- · Replies 12 ·
What is the average speed for this lap?
- Janelle
- · Replies 13 ·
Calculating Frequency Absolute Error for Oscilloscope Measurements in kHz
- gumpsfu
- · Replies 1 ·
Does a Vertical Force Affect Horizontal Speed on a Frictionless Surface?
- gunblaze
- · Replies 4 ·
Calculating Mass from Acceleration and Net Force
- MissFortune
- · Replies 4 ·
Why use sin for x and cos for y when resolving a vector in quadrant 3
- th77
- · Replies 6 ·
Replacing Resistors in Series: Equivalent Resistance and Calculation
- mich_v87
- · Replies 5 ·
What is the coefficient of static fraction for the book?
- Raiden9
- · Replies 6 ·
Ball thrown upward, car braking, and meter-stick balance
- NMW
- · Replies 11 ·
Does it make since if it takes 675 food Calories to lift me up 17 ft?
- mcca408
- · Replies 3 ·
Closing of switch in series circuit
- mich_v87
- · Replies 2 ·
Derivation of Doppler Effect Equations
- Pseudo Statistic
- · Replies 2 ·
Calculating Voltage Across Capacitors in Series
- Squ33
- · Replies 3 ·
Calculating Distance in Simple Harmonic Motion with Period and Amplitude
- enclosed
- · Replies 3 ·
Design a slow roller device for a 1 meter ramp at 13 degrees
- luvrsofsunydale
- · Replies 13 ·
Finding the Rate of Climb for a Plane
- mr_glass
- · Replies 2 ·
Angular momentum thin string problem
- aquafina
- · Replies 3 ·
Can you decipher what my prof said regarding my hw question towards her?
- badtwistoffate
- · Replies 8 ·
How Long Does It Take a Bullet to Traverse a Wall with Variable Resistance?
- vabamyyr
- · Replies 2 ·
Calculate Resistance of Frustrum Wire
- pizzasky
- · Replies 5 ·
Do two conducting rods on the same rails repel or both move in a railgun?
- bink_02
- · Replies 1 ·
Derive Centripetal Force Expression with T^2, m, R
- thursdaytbs
- · Replies 1 ·
Calculating problems with x and y components and other questions
- iflabs
- · Replies 1 ·
Why is excess fat stored near the stomach and buttocks?
- PhysicBeginner
- · Replies 2 ·
Rotational equilibrium, subtending, and rotational acceleration
- jakeowens
- · Replies 1 ·
Revised Force Calculation Question
- PhysicBeginner
- · Replies 2 ·
Calculating Friction Force on Table from Hammer-Nail Impact
- Werg22
- · Replies 6 ·
Calculate Magnitude of F for 203 kJ Work on Car Moving up 7.34° Hill
- leezak
- · Replies 2 ·
Why Does a Sphere Start Skidding on a Dome at a 30 Degree Angle?
- Wen
- · Replies 1 ·
How Fast Must a Volleyball Be Hit to Clear the Net and Reach the Back Line?
- suspenc3
- · Replies 1 ·
What Determines the Smallest Orbit Radius for a Proton in a Magnetic Field?
- bink_02
- · Replies 1 ·
Help with Mechanics Exam Review: Q1-Q5
- fahd
- · Replies 1 ·
Solve Atmospheric Pressure: Physics AP Edition
- airforce840
- · Replies 3 ·
What Are Common Sources of Error in an Electric Field Mapping Lab?
- mich_v87
- · Replies 1 ·
Formula for capacitance is C=Q/V
- Squ33
- · Replies 3 ·
What to plot against t^1/5 to get a straight line from kinematics data?
- an_mui
- · Replies 1 ·
Connecting resistors in parallel
- mich_v87
- · Replies 1 ·
How Do You Calculate E in Mica for a Capacitor?
- mr_coffee
- · Replies 1 ·
How Do You Determine Heat Transfer and Work in a Thermodynamic Cycle?
- kdinser
- · Replies 1 ·
Calculate Lift Force of 4510 kg Helicopter Accelerating Upward
- decile
- · Replies 4 ·
Force between capacitor plates with 5 μC charge
- mr_coffee
- · Replies 1 ·
Calculating Force of Falling Weight in Closed System
- jesuslovesu
- · Replies 1 ·
Analysis of Experimental Errors on Wavelength and Angle Measurements
- bayan
- · Replies 1 ·
Bat and mirror relativistic problem is my solution good ?
- irrehaare
- · Replies 1 ·
Calculating Net Work for a Car on an Inclined Surface
- leezak
- · Replies 11 ·
How fast was the car traveling?
- PhysicBeginner
- · Replies 1 ·
Calculating Percent Change in Kinetic Energy with Varying Force Angles
- leezak
- · Replies 16 ·
Weight if Earth had twice its radius and mass
- Michaelenetaylor
- · Replies 1 ·
Work and potential energy for a uniform force at angle µ to vertical
- jd102684
- · Replies 2 ·
Check my answers on forces, inclines and projectile motion
- amcavoy
- · Replies 3 ·
Series Circuit Disconnected at Ammeter: Charge Flow?
- mich_v87
- · Replies 1 ·
Physics Motion and Free Fall Equations
- Dome6656
- · Replies 1 ·
What force P makes net work by friction and P equal zero?
- leezak
- · Replies 8 ·
1-Is it correct to say that a toaster "consumes" current?
- mich_v87
- · Replies 2 ·
Finding mass in a confusing problem
- MissFortune
- · Replies 5 ·
How can I find the horizontal distance without knowing the initial velocity?
- kevinlikesphysics
- · Replies 10 ·
What is the net work done on the boat by the two locomotives?
- leezak
- · Replies 5 ·
Max Speed Calculation for a 1600 kg PT Cruiser on a 50m Radius Road
- jtm
- · Replies 6 ·
Question Concerning F=ma and FBDs.
- lawtonfogle
- · Replies 3 ·
Choosing a liquid for viscosity experiment with temperature and terminal velocity
- sueanne
- · Replies 3 ·
Climber efficiency calculation from gravitational potential energy change
- Erwin Schrodinger
- · Replies 1 ·
Elastic and inelastic collisions, impulse, and momentum
- r3dxP
- · Replies 1 ·
Picture hanging on 40 inch wire with eyelets 39 inches apart
- skialta
- · Replies 2 ·
Components of the Moons Acceleration
- neo32
- · Replies 6 ·
Atwood machine tension as m1 approaches infinity
- Meteo
- · Replies 7 ·
Finding minimum and maximum coefficient of friction for a banked curve
- ouse
- · Replies 1 ·
Forces and Friction of sliding blocks
- shawpeez
- · Replies 1 ·
Finding Aphelion Distance After Satellite Explosion
- Kenny Lee
- · Replies 2 ·
Projectile fired on hill at angle
- eku_girl83
- · Replies 3 ·
Can you check my projectile motion answers?
- kevinlikesphysics
- · Replies 2 ·
Solve Power Problem of Grandfather Clock
- SoccaCrazy24
- · Replies 1 ·
Circular Motion question. Need direction
- Mike B
- · Replies 1 ·
Great Pyramid of Cheops (Center of Mass Problem)
- spank_fusion
- · Replies 3 ·
Which Plane Orientation Dissipates the Most Mechanical Energy?
- ViewtifulBeau
- · Replies 1 ·
Car Power to Weight: How Much Extra HP Does Car A Need?
- se7en1976
- · Replies 6 ·
Utter Confusion on Projectile Motion
- marshmallowchicken
- · Replies 3 ·
Calculating Power of a Skydiver at Terminal Speed
- koky0
- · Replies 2 ·
At what rate do electrons flow through any cross section
- mr_coffee
- · Replies 3 ·
Physics/Astronomy power spectrum from waveforms
- fasterthanjoao
- · Replies 1 ·
What Was the Acceleration of the 1852 Crampton Coal-Fired Train Engine?
- thua
- · Replies 3 ·
How Should Direction Be Adjusted in Relative Velocity Problems?
- Jacobpm64
- · Replies 1 ·
Finding coefficient of friction without given mass
- bijanv
- · Replies 5 ·
Three blocks and pulley system with applied force and 2.5 m/s² acceleration
- babbagee
- · Replies 1 ·
Lyman alpha wavelength ranges for different Z in hydrogen-like atoms
- jaidon
- · Replies 1 ·