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 Does Pipe Expansion Affect Water Pressure?
- omgitsmonica
- · Replies 1 ·
Differential cross section/simple integral
- jonwell
- · Replies 5 ·
Sphere rolling down rough hill then sliding on ice
- mschoen
- · Replies 2 ·
Can gravitational potential energy of a system be negative?
- meredith
- · Replies 1 ·
B Field in Semicircle Conductor
- Telcron
- · Replies 2 ·
How Does the Boy Balance the Forces While Carrying the Sack?
- lacar213
- · Replies 1 ·
Initially charged capacitor disharged through a resistor
- Mike88
- · Replies 4 ·
When does Kathy overtake Stan in the drag race?
- jp0108
- · Replies 3 ·
Euler's Equations for Extremas of J: y=C*e^x
- lylos
- · Replies 1 ·
How Do You Calculate the Vertical Acceleration of a Unrolling Disk?
- veronicak5678
- · Replies 14 ·
Coefficient of friction of a sitting block
- teababy
- · Replies 4 ·
Maximum Compression of buffers for a Train
- JamesC
- · Replies 3 ·
Vacume technology at pressure;molecules in amount of volume
- Mugen112
- · Replies 1 ·
Torque on a Pulley Homework: Find Speed & Average Torque
- veronicak5678
- · Replies 17 ·
What is the coefficient of static friction in this scenario?
- yoleven
- · Replies 6 ·
How can different distances and speeds result in the same velocity?
- BUTTER-BENZ
- · Replies 5 ·
Is the Decimal .83333333 a Constant Value?
- BUTTER-BENZ
- · Replies 1 ·
Calculating speed for 10 meters in 15 seconds
- BUTTER-BENZ
- · Replies 3 ·
What Is the Maximum Reaction Time for a Ranger to Avoid a Deer?
- jp0108
- · Replies 1 ·
Electrons subjected to a continuous force
- abotiz
- · Replies 2 ·
Velocity question i can't figure it out
- BUTTER-BENZ
- · Replies 5 ·
Conservation of energy theorem problem
- fishingspree2
- · Replies 5 ·
Compute the mass of the marble?
- Max CR
- · Replies 7 ·
Finding the distance a spring compresses
- dal11
- · Replies 3 ·
How long would it take to walk 10m ?
- BUTTER-BENZ
- · Replies 2 ·
How Do You Calculate Instantaneous Speed from a Speed-Time Graph?
- BUTTER-BENZ
- · Replies 2 ·
Finding loop radius from apparent weight at bottom of loop
- Physics197
- · Replies 9 ·
Equilibrium Pulley Tension Problem
- livewire852
- · Replies 1 ·
What Is the Reaction Force to Gravity on a Book Resting on a Shelf?
- steve0827
- · Replies 4 ·
Painter falling ladder: let go or hang on
- gabee
- · Replies 8 ·
Find the Acceleration of the Aar Going Downhill
- Trix
- · Replies 1 ·
Pulleys - find force to accelerate a block
- Pakbabydoll
- · Replies 15 ·
Net Force on airplance cabin surface
- tbstar
- · Replies 7 ·
What physics will you use to find the speed?
- deanine3
- · Replies 5 ·
Write expressions for simple harmonic motion
- RedBarchetta
- · Replies 2 ·
Why does car 2 shoot farther off the cliff if both cars experience equal force?
- deanine3
- · Replies 2 ·
How high do you need to be to weigh 69.7 percent of your surface weight?
- shabut NAA
- · Replies 5 ·
Which car has greater momentum at the cliff's edge?
- deanine3
- · Replies 11 ·
Does the Divergence Theorem Apply to Complex Vector Fields and Hemispheres?
- lazyluke
- · Replies 5 ·
Solving an Equilibrium Problem: Finding the Maximum Angle
- DD31
- · Replies 4 ·
Calculating Charge on Capacitors in Series
- slammer
- · Replies 5 ·
Gravitational Forces on Ship Stranded Near Black Hole
- rpcarroll
- · Replies 5 ·
Maximum distance spring compressed.
- AnnieD
- · Replies 1 ·
What is the average force exerted on the putty by the surface?
- *intheclouds*
- · Replies 10 ·
Sledgehammer on pivot, using inertia, center of mass, finding speed
- bocobuff
- · Replies 3 ·
Electrons transferred when balloon acquires -0.60 nC charge
- soulembracer
- · Replies 3 ·
How Does a 10% Reduction in Sun's Power Affect Earth's Temperature?
- aforce20
- · Replies 5 ·
Momentum (airplane landing, word problem)
- mickeymouseho
- · Replies 1 ·
The coefficient of static friction on an unbanked curve
- apt8
- · Replies 2 ·
How much horsepower are you applying?
- Max CR
- · Replies 6 ·
Thermo problem causing me to hemerage
- csingham
- · Replies 1 ·
What Speed Do Ice Skaters Reach After a Collision?
- sweedeljoseph
- · Replies 5 ·
Work done by air resistance and gravity
- Maiia
- · Replies 3 ·
Force applied by tree in car crash (1015 kg at 32 m/s)
- sweedeljoseph
- · Replies 6 ·
How Do You Calculate the Original Velocity of a Cannonball in a Collision?
- sweedeljoseph
- · Replies 2 ·
Linear acceleration of bicycle
- bocobuff
- · Replies 3 ·
Power Stairs Problem: 690 W Needed for 44 kg Person to Climb 12 Flights in 15s
- sweedeljoseph
- · Replies 4 ·
Work and energy with normal force
- Maiia
- · Replies 3 ·
Radioactive Decay Differential Equation Question
- TFM
- · Replies 31 ·
Can You Solve These Conservation of Energy Equations?
- blayman5
- · Replies 2 ·
When do I use cos and sin in a free body diagram?
- emoseman
- · Replies 12 ·
Find gravitation on Mard and the Earth
- DollarBill
- · Replies 3 ·
Calculate Moment of Inertia at Point A
- asi123
- · Replies 9 ·
Chain sliding off a table, find the function a(t)
- packers7
- · Replies 14 ·
What is the equation for calculating power output?
- Max CR
- · Replies 3 ·
Find the force applied to you by the rubber bands?
- Max CR
- · Replies 2 ·
If there were more friction present, how would your results change?
- teababy
- · Replies 1 ·
Angle between two refraction angles
- goWlfpack
- · Replies 2 ·
Velocity of two gliders after inelastic collision
- MrPickle
- · Replies 25 ·
How Do You Calculate the Flux of a Vector Field Through a Parametric Surface?
- lazyluke
- · Replies 1 ·
Scalar factors of parabolic cylindrical coords
- lazyluke
- · Replies 1 ·
Potential energy of 2 sprinds on a single point
- dal11
- · Replies 7 ·
Do Physics Misconceptions Affect Exam Scores?
- voidofidea
- · Replies 8 ·
Torques exerted by Gravity (CONFUSING)
- avenkat0
- · Replies 8 ·
Angle of refraction through ice into water
- goWlfpack
- · Replies 2 ·
Determining the Mass of Jupiter Using Io's Orbital Parameters
- Husker70
- · Replies 17 ·
How do drums relate to Newton's laws and two other physics topics?
- FunkyStickers
- · Replies 3 ·
Finding the reaction angle at point A in a statics problem
- JosephR
- · Replies 1 ·
Angular acceleration of a rod released from horizontal
- asi123
- · Replies 7 ·
Calculating Propagation Velocity with MATLAB
- maths08
- · Replies 5 ·
How Do You Calculate the Force Needed to Move a Block Up an Inclined Surface?
- blue-steel
- · Replies 1 ·
Intensity of polaroids at an angle
- Sasha26
- · Replies 1 ·
How Does Temperature Affect Water Overflow and Gas Behavior in Physics Problems?
- Kickbladesama
- · Replies 1 ·
How Does Helium Affect the Fundamental Frequency of an Organ Pipe?
- kristibella
- · Replies 2 ·
Not sure how to do this angular momentum, torque?
- Raylyn
- · Replies 1 ·
Torque problem involving rolling disk stopped by a force
- xregina12
- · Replies 1 ·
How do I determine the distance between two lenses in a telephoto lens system?
- creative_wind
- · Replies 3 ·
Electric Potential in a region of space
- quietriot1006
- · Replies 5 ·
Proving T-W=(mv²)/L from conservation of energy
- blayman5
- · Replies 1 ·
Photon energies from hydrogen atoms excited by 12.8 eV electrons
- lebprince
- · Replies 26 ·
Rolling ball on curved track: finding horizontal distance x
- Kamkazemoose
- · Replies 1 ·
Find the magnitude of the horizontal force exerted by the lower hinge
- angel120
- · Replies 1 ·
Why Doesn't Momentum Conservation Apply to a Cart with a Sail?
- #H34N1
- · Replies 5 ·
What is the force exerted on a 380 kg piano on a ramp with an incline of 27*?
- lemonlee
- · Replies 5 ·
Friction problem involving 2 blocks sliding in 2 directions with 2 frictions
- 2FAST4U8
- · Replies 1 ·
Finding vertical force on beam with cable-supported floodlight
- xregina12
- · Replies 1 ·
What is the net torque on the system
- Guruu
- · Replies 2 ·
Calculate Change in Volume of Seawater at 10.9 km Depth
- asleight
- · Replies 10 ·
How Is Displacement Calculated in a Shear Strain Scenario?
- asleight
- · Replies 1 ·
Young's Modulus: maximum depth of mine
- mmylo
- · Replies 1 ·