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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Light intensity from a source on a solar panel at different distances
- corduroyyy
- · Replies 2 ·
Calculating Distance Traveled: Motion Exam Question Solution in 7.4 Seconds
- mouk92
- · Replies 5 ·
Sabine's reverberation time equation and large spaces
- peter mcc
- · Replies 2 ·
Food value of a peanut from water temperature change with 40% efficiency
- ashvuck101
- · Replies 9 ·
Speed and acceleration of a stone on a rotating tire
- Lord Dark
- · Replies 4 ·
Steady State Ideal Gas Where Do I start
- CRich
- · Replies 13 ·
What is the formula for finding initial velocity from acceleration and distance?
- mcryder16
- · Replies 3 ·
Calculate the tension in the tie-rope between the rod and the wall
- Lord Dark
- · Replies 3 ·
Calculating Particle Speed with Relativity
- GingerToast21
- · Replies 2 ·
Projectile Motion (Ball thrown Hortizonally)
- talaroue
- · Replies 3 ·
Some electrodynamics questions (waves)
- twotaileddemon
- · Replies 10 ·
How Is Force Calculated When an Object Hits the Ground?
- cd19
- · Replies 6 ·
How Long Does It Take for Two Rocks Thrown from a Bridge to Hit the Water?
- mcryder16
- · Replies 1 ·
Toy train with sticking wheel: finding deceleration
- mcryder16
- · Replies 1 ·
Centroid,centre of mass and centre of gravity
- monty37
- · Replies 5 ·
How Far Will a Car Coast Up a Hill After Running Out of Gas?
- mcryder16
- · Replies 1 ·
EMF, Power Output, and Terminal Voltage
- phm
- · Replies 1 ·
Time to reheat coffee in microwave using power delivery rate
- ashvuck101
- · Replies 10 ·
How Far Should the 70-cd Lamp Be to Match the 10-cd Lamp's Intensity?
- bnwchbammer
- · Replies 1 ·
Which Battery Configuration Produces More Power?
- orthovector
- · Replies 2 ·
Rotational Dynamics/moment of inertia/frictional torque
- xdevinx
- · Replies 4 ·
How Much Mass is Needed for a Counterweight to Balance a Truck on an Incline?
- xdevinx
- · Replies 1 ·
What distance is the magnitude of gravity equal between earth and moon?
- zakh4527
- · Replies 3 ·
When Does the Marble Detach from the Hemisphere?
- aranud
- · Replies 18 ·
How Do Tractive and Braking Forces Affect Vehicle Motion on Different Gradients?
- paul7776
- · Replies 1 ·
Cloth purchase unit conversion problem
- magma_saber
- · Replies 1 ·
Why Use Full Distance in Capacitor Electric Field Calculation?
- fwFAWFSERG
- · Replies 1 ·
How Do You Calculate the Power of a Heater in a Vending Machine?
- RoryP
- · Replies 1 ·
Clockwise or counterclockwise rotation about a fulcrum
- invadertak
- · Replies 1 ·
What Is the Final Temperature When Ice Melts in Water?
- cugirl
- · Replies 1 ·
What is the velocity and kinetic energy of a rolling disk on an inclined plane?
- cugirl
- · Replies 15 ·
How intensity and frequency affect photoelectric current and voltage
- 385sk117
- · Replies 1 ·
Work done pushing 185-kg refrigerator up a 10m ramp at 11 degrees
- treycarver
- · Replies 1 ·
Finding the Speed of a Falling Ball with Constant Acceleration
- vivienwest
- · Replies 2 ·
Carnot Freezer Engine Efficiency Calculation
- reb659
- · Replies 7 ·
Calculating work output of an engine, using ideal gas
- lagwagon555
- · Replies 3 ·
What physics should I research for a gravity car EEI project?
- Walker-J
- · Replies 5 ·
Optics: Thin Lens and Image Formation
- crzcrcketer89
- · Replies 3 ·
Why Might Ay Be Bigger Than Ax in a Triangle?
- Make
- · Replies 1 ·
How to Solve Elastic Collision Problems?
- ashvuck101
- · Replies 7 ·
Calculating Current in a Multiloop Circuit
- pilot-piper
- · Replies 4 ·
How do zero error and calibration error affect uncertainty in μ calculation?
- Shukie
- · Replies 5 ·
Physics 11 - What is the relationship between the weight (N) vs mass (g)?
- alliereid
- · Replies 1 ·
Who took the AP Physics C exam today?
- k_endall
- · Replies 2 ·
Determine Tension and Length of 50g Guitar String Oscillates at 1280Hz
- Ry122
- · Replies 1 ·
Average velocity from home to lamppost in 9 minutes
- kp270
- · Replies 4 ·
Electric field from uniformly charged semicircle at center point
- Nimmy
- · Replies 15 ·
Proving that r(t) is perpendicular to dr/dt when ||r(t)|| is constant
- Dvsdvs
- · Replies 5 ·
Finding the mass after gaining elctrons
- MRGE
- · Replies 1 ·
How Far Will the Cord Stretch When a 2kg Block is Suspended?
- Ry122
- · Replies 3 ·
Dispersion relations and Plasma
- Moham1287
- · Replies 3 ·
Cylinder rotating; coeff of friction?
- cugirl
- · Replies 10 ·
How much energy is released in the explosion?
- Lord Dark
- · Replies 10 ·
Specific parts of the emission spectrum of a sodium lamp
- Einstein2nd
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Finding ideal energy transferred to a projectile.
- helloabhihere
- · Replies 13 ·
Inelastic collision and Hook’s law
- yellowmax31
- · Replies 5 ·
Calculating Acceleration in Air Track System
- leo037
- · Replies 1 ·
Solve Using Conservation of Energy
- joemama69
- · Replies 1 ·
How can you tell that this iron operates using the mains supply?
- chessie273
- · Replies 1 ·
Calculating Velocity and Acceleration for Circular Motion
- milan666
- · Replies 2 ·
Finding the Angle of Incline for a Block Sliding Down a Frictionless Surface
- cugirl
- · Replies 3 ·
Normal force with angled force and static friction on 2kg block
- cugirl
- · Replies 3 ·
Calculating absolute magnitude
- edoarad
- · Replies 1 ·
Relativistic momentum football problem
- Cheezay
- · Replies 3 ·
How Do You Calculate Forces and Accelerations in a Two-Block System?
- Dweirdo
- · Replies 3 ·
Using inertia tensor in conservation of angular momentum
- Mark24
- · Replies 3 ·
Isothermal Expansion: Heat Transfer in a Confined Ideal Gas
- jetpackman
- · Replies 3 ·
How Do You Calculate the Resultant Force on a Mass on an Inclined Plane?
- nigelhowie
- · Replies 8 ·
Understanding MCAT Question Confusion: Energy and Force on Steep Hills
- mrlucky0
- · Replies 3 ·
Calculate the electric field in the middle of half sphere
- en.yokhai
- · Replies 9 ·
Building height from free fall distance in final second
- abhikesbhat
- · Replies 5 ·
Acceleration of Rollercoaster hill?
- alliereid
- · Replies 3 ·
Tangential Acceleration and Coefficient of static friction
- Pureness
- · Replies 10 ·
Fluffy clouds XD - pressure n height
- vorcil
- · Replies 2 ·
Calculating Power Loss in a 300 MW Power Station
- jgens
- · Replies 4 ·
To find rocket's acceleration and velocity
- brunettegurl
- · Replies 16 ·
Maximum energy stored in the capacitor = 0.85 Joules
- SoulofLoneWlf
- · Replies 1 ·
Velocity when leaving a bucking bull in simple harmonic motion
- jjlandis
- · Replies 4 ·
Calculating heat of fusion and specific heat in a calorimetry lab with ice
- fuzmaster
- · Replies 1 ·
How Do Magnetic Fields Interact at Point P Between Parallel Wires?
- GDGirl
- · Replies 2 ·
Mean free path and molecular separation of oxygen at different altitudes
- kidsmoker
- · Replies 1 ·
How Do You Calculate the Charge of a Point Charge Near a Charged Plane?
- Nimmy
- · Replies 13 ·
Finding equivalent capacitance with dielectric
- MeSS2342
- · Replies 3 ·
Find Thevenin Equivalent Resistance for Network
- qwerty2x
- · Replies 3 ·
Potential difference across a car axle in Earth's magnetic field
- nightwing237
- · Replies 1 ·
How to approach physics exam problems
- tnutty
- · Replies 2 ·
Solving an Equilibrium Problem
- Domestikus
- · Replies 2 ·
Calculating Telescope Length: Refracting Telescopes
- edoarad
- · Replies 1 ·
What is the Largest Radius of an Asteroid from Which You Can Escape by Jumping?
- jjlandis
- · Replies 10 ·
How Does Submerging a Sphere Affect Scale Readings?
- jaded18
- · Replies 38 ·
What Is the Moment of Inertia of a Square Plate About Its Diagonal?
- Lopina
- · Replies 4 ·
Focal Length of Converging Lens: 10.03 cm
- whitehorsey
- · Replies 2 ·
Doppler Radar Relative Velocities
- Anony-mouse
- · Replies 3 ·
Determining the Magnetic Force on a Moving Charged Particle
- robera1
- · Replies 7 ·
Physics Midterm: Calculate Electric Field at Origin
- Nimmy
- · Replies 1 ·
Differences between angle of incidence, reflection, and refraction
- aimslin22
- · Replies 1 ·
Thermodynamics quiz using ideal gas law
- CRich
- · Replies 20 ·
Estimating Speed Using Work and Energy Equations
- chaostheory1
- · Replies 6 ·
Homogeneization of physic formula of electromagnetic field and velocity
- Plott029
- · Replies 2 ·
Fluid mechanics Reynolds number equation query
- smegal
- · Replies 3 ·