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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Force on a bead due to a rotating wire
- Pushoam
- · Replies 23 ·
Twins Paradox: Solving for Total Time Lapse
- Vrbic
- · Replies 17 ·
Why does earthing a conductor change charge attraction in this insulator problem?
- Cici2017
- · Replies 8 ·
Magnitude of force on charged particle
- Cici2017
- · Replies 6 ·
Minimum velocity for puck to slide off 1-meter wooden panel
- OlicityFangirl
- · Replies 14 ·
Resistance of a water heaters heating element?
- Rijad Hadzic
- · Replies 8 ·
Tension in a rope placed on a cone
- Vibhor
- · Replies 7 ·
RLC circuit with 15Ω resistor, 200μF capacitor, 12mH inductor
- Chemmjr18
- · Replies 2 ·
Electric field in the center of an arc
- SetepenSeth
- · Replies 3 ·
Conservation of Energy: Pulley and Springs
- OlicityFangirl
- · Replies 1 ·
Current between concentric cylinders with dielectric
- Rijad Hadzic
- · Replies 4 ·
What happens to a cylinder in a closed tube as angular velocity increases?
- giokrutoi
- · Replies 17 ·
Estimate average speed of electrons in gas?
- Rijad Hadzic
- · Replies 1 ·
How Long to Reach Maximum Height for a 70 m/s Projectile at 45 Degrees?
- Cortana
- · Replies 5 ·
Rod and garage paradox: different fitting outcomes in different frames
- Umrao
- · Replies 7 ·
Velocity and Acceleration Relationship
- Ash_Sdr
- · Replies 13 ·
Resistance, Voltage, and current
- Cici2017
- · Replies 6 ·
Finding Vmax of a Block in SHM: Mass, Spring Constant, and Distance
- Litdaze
- · Replies 5 ·
TV signal interference from airplane reflections at 75 MHz
- Charlestonprince
- · Replies 1 ·
Electron deflected in parallel plate capacitor
- gbajwa
- · Replies 2 ·
Relative velocity and water skier
- dirk_mec1
- · Replies 7 ·
Cord Oscillates, Tension Changes
- Const@ntine
- · Replies 7 ·
Direction of the magnetic field
- Cici2017
- · Replies 5 ·
Which point has the strongest electric field strength in this scenario?
- Cici2017
- · Replies 1 ·
Finding the North Pole of a Magnet Using the Right Hand Rule
- Cici2017
- · Replies 7 ·
Calculating the Total Energy of a Transverse Wave on a String
- gimak
- · Replies 6 ·
Why do magnetic fields above and below a current have the same strength?
- Cici2017
- · Replies 6 ·
Force on an electron in a magnetic field
- chopnhack
- · Replies 7 ·
Capacitance and Dielectrics in Parallel Plate Capacitors
- Rijad Hadzic
- · Replies 2 ·
Direction of friction acting on a rolling cylinder
- Pushoam
- · Replies 9 ·
Finding mass of charged particle in magnetic field with kinetic energy and radius
- kbraith3
- · Replies 8 ·
Conservation Laws in Elastic Collision of Particle with Rotating Square
- Fibo112
- · Replies 9 ·
Three points at the vertices of equilateral triangle
- Pushoam
- · Replies 8 ·
Year 11: Centripetal Acceleration/Force "Challenging" questi
- jstretto
- · Replies 1 ·
Maximum distance the car accelerates in a circle without skidding
- Pushoam
- · Replies 16 ·
Center of Mass (Subtraction over addition)
- Ignitia
- · Replies 7 ·
Standing wave in stick with resonant tube length
- Const@ntine
- · Replies 6 ·
Tension in a chain with circular motion
- Pushoam
- · Replies 1 ·
Calculate charge and capacitance
- Saundaz
- · Replies 1 ·
Distance between two events w.r.t. two frames
- Pushoam
- · Replies 5 ·
Minimum value of coefficient of friction
- Jahnavi
- · Replies 3 ·
Force between parallel wires carrying 1.0A current 1.0m apart
- Cici2017
- · Replies 4 ·
Tuning a Violin's Chord (Frequencies)
- Const@ntine
- · Replies 9 ·
Why is the gradient of a V-I graph equal to resistance for ohmic materials?
- Cici2017
- · Replies 2 ·
Difference between mean speed and mean velocity vector magnitude
- Pushoam
- · Replies 19 ·
Calculating a bolt's free fall time in an accelerating elevator
- Pushoam
- · Replies 17 ·
Magnetic moment and torque equations for current loops
- J6204
- · Replies 1 ·
Runner coinciding with train fronts and backs in special relativity
- tobix10
- · Replies 13 ·
Determining the direction of torque
- J6204
- · Replies 14 ·
Using the right hand rule in physics
- J6204
- · Replies 2 ·
Pytels Dynamics 12.26: Block moves along the x-axis
- Alexanddros81
- · Replies 4 ·
Projectile motion, radii of trajectory
- Pushoam
- · Replies 9 ·
Δt between consecutive frequency configurations
- Const@ntine
- · Replies 20 ·
Wave Confluence: Ship & Radiotowers (Check Needed)
- Const@ntine
- · Replies 6 ·
Calculating distance, angle bet. velocity and acceleration
- Pushoam
- · Replies 7 ·
KE+PE when a rocket's speed is less than escape velocity?
- GrimReaper
- · Replies 8 ·
Calculating the distance to turn off the highway
- Pushoam
- · Replies 11 ·
Calculating Incidence Angle for Tilted Plate and Light Source
- Yani
- · Replies 4 ·
Fireman sliding down pole with friction over distance d
- BBA Biochemistry
- · Replies 5 ·
Pytels Dynamics 12.25: Plane tracked by radar stations
- Alexanddros81
- · Replies 23 ·
Velocity of a particle kicked into four point charge square
- jlmccart03
- · Replies 1 ·
Do two particles moving on the same line have different position vectors?
- Pushoam
- · Replies 11 ·
Change in potential energy of air in a piston-cylinder system
- Pripyat
- · Replies 2 ·
How to Calculate F1 and F2 for a Balanced Beam?
- Buns_of_Steel
- · Replies 9 ·
Is My Physics Calculation on Bullet and Block Interaction Correct?
- epiccy
- · Replies 14 ·
Calculate electric potential from a graph
- jlmccart03
- · Replies 2 ·
Two speakers interfering: minimum intensity on a hyperbola
- Const@ntine
- · Replies 6 ·
Magnitude of the electric field
- Rijad Hadzic
- · Replies 4 ·
Pulley system, calculate acceleration
- dodo lee
- · Replies 16 ·
Magnitude and Direction of the Force on a Charge
- Physistory
- · Replies 6 ·
Calulate the distance of objects in Earth's orbit
- VinnyO
- · Replies 1 ·
Basic torque/static equilibrium problem
- epiccy
- · Replies 12 ·
Why does Venturi effect equation P2=P1+ρgh work when pipes are at different heights?
- Olly Vogel
- · Replies 2 ·
Wavelengths, Flux Density, Irradiance from a temperature measurement
- Natalie Johnson
- · Replies 10 ·
KVL/KCL with two sources - can a loop have both sources?
- chopnhack
- · Replies 5 ·
Investigation about the emission spectrum of Mercury
- Zibi04
- · Replies 4 ·
Free energy Helmholtz using only the equation of state
- Dario SLC
- · Replies 8 ·
Find the electric field at the origin
- Rijad Hadzic
- · Replies 3 ·
What Is the Acceleration of Block B in a Two-Mass Pulley System?
- Neolight
- · Replies 18 ·
Free fall distance with non-constant g
- DavidTheGreat
- · Replies 16 ·
Frequency of Trucks Overtaking a Cyclist
- Const@ntine
- · Replies 16 ·
What charge is carried by sphere c?
- Rijad Hadzic
- · Replies 18 ·
Sound Intensity (Level) - Hearing Aid
- Const@ntine
- · Replies 5 ·
How Does the Delta Function and Its Derivative Interact with Shifted Functions?
- gimak
- · Replies 1 ·
Calculating Potential Difference in an Electric Field with Given Field Equation
- chopnhack
- · Replies 4 ·
Solving Volumetric Expansion of Water in Glass
- chopnhack
- · Replies 6 ·
What is the Electric Field at Two Points?
- jlmccart03
- · Replies 11 ·
Electrical forces, application of Colomb's law
- Rijad Hadzic
- · Replies 3 ·
Packet dropped from a rising balloon at 65 m height
- AlphaA
- · Replies 7 ·
Explain speed limits on curved ramp with Newton's Laws
- Mayp
- · Replies 3 ·
How Fast Will the Rocket Travel After Using All Its Fuel?
- Asad Raza
- · Replies 7 ·
Magnetic Field of a Line between two wires
- Litdaze
- · Replies 7 ·
RC circuit -- finding the charge on each capacitor
- fedecolo
- · Replies 18 ·
Electricity (Potential difference between points in circuit)
- Suyash Singh
- · Replies 2 ·
Finding time between two arrivals at y = 0.175m in transverse wave
- Const@ntine
- · Replies 5 ·
Find the current flowing through the 3 ohm resistor.
- prakhargupta3301
- · Replies 4 ·
Finding Velocity Components given Speed and Heading
- Ash_Sdr
- · Replies 6 ·
Interference of Waves, Sound Diminution
- alingy1
- · Replies 2 ·
Finding the magnitude of electric field
- jlmccart03
- · Replies 4 ·
How to find max velocity in a spring-mass system?
- Helly123
- · Replies 5 ·