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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Minimum Electric Potential Difference Required to Bring Alpha Particle to Rest
- Mspike6
- · Replies 4 ·
Determing wavelength of sound wave from steel string
- LBRRIT2390
- · Replies 1 ·
Solve Tension Problem: 3kg Mass, 5.4kg Brick, 12.01N Friction
- David999
- · Replies 3 ·
How Do You Solve a Uniform Cantilevered Beam Problem?
- shah4u19
- · Replies 3 ·
Intensity of sound wave when given sound intensity level.
- Ericv_91
- · Replies 2 ·
Acceleration problem-how to incorporate head starts?
- sean-820
- · Replies 13 ·
What Are the Launch Angles for Half the Maximum Range of a Projectile?
- mullets1200
- · Replies 1 ·
Collision Problem: Masses, Speed, Force
- ges9503
- · Replies 1 ·
Determining the change in temperature
- blackdog666
- · Replies 1 ·
Finding distance to stalled car with train braking data
- Physuph
- · Replies 1 ·
Finding launch angle for maximum range when landing 3 meters lower
- larryboi7
- · Replies 4 ·
Find Tension in Rope: 45deg, No Moments @A
- krnhseya
- · Replies 1 ·
What is the Relationship Between Currents in Three Branches of a Circuit?
- lampshader
- · Replies 2 ·
Overcoming fear
- sstangle73
- · Replies 1 ·
Height of the two balls collision
- larryboi7
- · Replies 1 ·
Simple Harmonic Motion of a Block on a Spring
- Neodudeman
- · Replies 2 ·
Where does the 6 come from in F24 calculation
- Gemy4
- · Replies 4 ·
Using Acceleration to Calculate Gravity
- zx95
- · Replies 4 ·
What is the final speed of a ball thrown from a window 3.6m above the ground?
- ryan8642
- · Replies 1 ·
How to Calculate the Required Flux Density for Maximum Voltage Induction?
- Kev1n
- · Replies 1 ·
Tension force with pulleys and weights
- seehuendchen
- · Replies 2 ·
Two questions about Newton's law
- cyspope
- · Replies 6 ·
Jump rope: time in air for 14.3 cm jump height
- mybrohshi5
- · Replies 17 ·
What is the Maximum Horizontal Distance for a Rooftop Escape?
- xupe33jrm
- · Replies 2 ·
Finding the Ratio of Initial Speed and Angular Speed for a Struck Snooker Ball
- JazzCarrot
- · Replies 4 ·
Dew Point Calculation and Cloud Formation in Mountain Wind Flow
- Sunshin3
- · Replies 1 ·
Electric force on charge in right triangle with Coulomb's law
- kavamo
- · Replies 6 ·
Linear velocity at equator with respect to the sun
- deathcap00
- · Replies 3 ·
Why Is a Voltmeter Connected in Parallel?
- moomoocow
- · Replies 3 ·
Electric Potential of 3 point charges
- Kittlinljd
- · Replies 6 ·
What is the frequency of the tuning fork?
- K3nt70
- · Replies 9 ·
Net Gravitational Force on Object #1 with Distances A and B
- madasrabbits
- · Replies 1 ·
Number of molecules on human's body
- songoku
- · Replies 9 ·
Calculating Force in a Frictionless System with Inclined Mass and Wheel
- BoldKnight399
- · Replies 3 ·
Finding boat speed after wind gust accelerates it 40° north of east
- Squall
- · Replies 1 ·
Young's double slit experiment with white light and in water
- songoku
- · Replies 7 ·
Linear/Angular Velocity and Acceleration
- deathcap00
- · Replies 2 ·
Finding tension in wire AB supporting a 75N bird feeder
- Messiah19
- · Replies 3 ·
Solving Damped Oscillator: Time to Reduce to 0.50 Energy
- zhenyazh
- · Replies 2 ·
Calculate the spring constant k
- zhenyazh
- · Replies 2 ·
Newton's Law and Frictional Forces
- victorc
- · Replies 2 ·
Why Is the Left Bank of a River Higher Than the Right Bank?
- hhegab
- · Replies 11 ·
Finding power when a student lifts 60kg 2.5m in 4 seconds
- dois
- · Replies 4 ·
Derivation of the potential of a charge
- fluidistic
- · Replies 4 ·
Angular acceleration of a rock, in a tire, on a car
- deathcap00
- · Replies 7 ·
Why Does a Superconductor Create a Stronger Magnetic Field?
- seriuqs
- · Replies 3 ·
Finding the electric field at a point on the x axis due to two charges.
- MelodyE427
- · Replies 16 ·
Maximum Speed and Height of Mass on Spring
- negatifzeo
- · Replies 11 ·
Surface Charge Density on an infinite sheet
- reising1
- · Replies 5 ·
Center of Mass of a Right Triangle
- the4thcafeavenue
- · Replies 2 ·
String in equilibrium with particle attached at point P
- eqreal
- · Replies 2 ·
Derivitive of the X final equation?
- Unsettledchim
- · Replies 1 ·
Acceleration at the center of circle
- songoku
- · Replies 2 ·
.Calculating Power Output of 1.8-g Spider
- Precursor
- · Replies 2 ·
Finding current through an inductor with sinusoidal voltage
- mmmboh
- · Replies 9 ·
Projectile Motion pitching speed
- charan1
- · Replies 3 ·
Finding torque of a rotating cylinder with given mass and angular acceleration
- BoldKnight399
- · Replies 7 ·
Simple Harmonic Motion: Unknown Spring Constant
- JJackson09
- · Replies 1 ·
By how much does the speed change each second?
- kremit
- · Replies 7 ·
Submerged Diver Apparent Height
- Nevertheless
- · Replies 4 ·
Force between blocks in a three-block system with 2 kg, 3 kg, and 4 kg masses
- mybrohshi5
- · Replies 6 ·
Calculating Electric Field of Cylindrical Rod and Shell
- hover
- · Replies 3 ·
Ballistic Pendulum Problem: Determining Speeds of Bullet and Block
- ges9503
- · Replies 3 ·
Find the buoyant force on a hot air balloon
- PHart111
- · Replies 2 ·
How Do Mass and Speed Affect Kinetic Energy?
- starwars89625
- · Replies 3 ·
Charged sphere accelerating along the axis of a charged ring
- warfreak131
- · Replies 2 ·
Tension force, acting about a pivot
- urbanyoung
- · Replies 1 ·
Ball into cup off ramp, need to derive equation
- nawor
- · Replies 2 ·
How Do You Calculate Acceleration and Deceleration Distances in a Cab Ride?
- dxlogan187
- · Replies 4 ·
Minimum constant speed to catch a train accelerating away
- zero_infinity
- · Replies 14 ·
Superpositon and Standing Waves problem
- weezer13578
- · Replies 2 ·
Electric Fields of horizontal sheets
- sdoug041
- · Replies 1 ·
How Do Friction and Inclination Affect Rock Movement on a Hill?
- SoulInNeed
- · Replies 7 ·
Stop a .22 Bullet: Average Speed Calculation
- mybrohshi5
- · Replies 3 ·
Solve Change in Voltage: Why is V=ED?
- collegeconfid
- · Replies 2 ·
What Happens if Earth Had a Net Surface Charge Density?
- gwenle1
- · Replies 3 ·
How to derive the mass formula for a uniform sphere
- aloshi
- · Replies 11 ·
How Many Logs Are Needed to Keep Children Afloat?
- bearhug
- · Replies 7 ·
How many times will a 0.65 kg ball bounce if dropped from a height of 2.5 m?
- songoku
- · Replies 2 ·
Thermodynamic Processes: Ideal Gas Expansion and Compression
- sdoug041
- · Replies 3 ·
How does changing frequency affect wave speed?
- MZET
- · Replies 4 ·
Find Energy Stored in Two Parallel Springs
- c7ng23
- · Replies 2 ·
Magnetic field: the Banebridge velocity selector
- Karol
- · Replies 4 ·
Point charge at the center of a spherical conductor
- snoweangel27
- · Replies 17 ·
Gravitational Force on an object
- coffeecake
- · Replies 2 ·
Why Do Angular Accelerations Differ for Two Pivoted Rods of Varying Lengths?
- zhenyazh
- · Replies 1 ·
Initial speed and acceleration problems with kinematics
- AbovenBeyond
- · Replies 7 ·
Which Conservation Law Do I Use for a Hanging Rod Hit by a Particle?
- zhenyazh
- · Replies 1 ·
Acceleration on Lowest and Highest Points (Vertical Circular Motion)
- yik-boh
- · Replies 12 ·
Tension in rope supporting two masses accelerating upward at 0.4 m/s²
- physics_newb
- · Replies 16 ·
Calculating Spring Constant Using Energy Conservation
- zhenyazh
- · Replies 7 ·
When to use different kinetic energy equations
- zhenyazh
- · Replies 1 ·
Combination of 3 springs at given angles
- watermlon
- · Replies 2 ·
Time needed for superman to stop the train
- zhenyazh
- · Replies 1 ·
Troubleshooting a Physics Calculation: Identifying the Problem
- zhenyazh
- · Replies 1 ·
Direction of work of block colliding with spring
- zhenyazh
- · Replies 2 ·
Parallel/Series Circuit w/ Capacitors
- littlebilly91
- · Replies 2 ·
Electric force on a charged plastic stirrer near a wire
- hover
- · Replies 3 ·
Decrease in amplitude with distance from source
- wrongusername
- · Replies 8 ·
Is the Magnetic Field Causing Issues? Find Out Here!
- byyao
- · Replies 1 ·