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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Finding applied force on 50 kg block accelerating up a 20° incline
- ssh222
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Bomb explodes at rest, conservation of motion problem
- T531
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Calculate the magnitude of the net force
- ninaw21
- · Replies 2 ·
Inverse relationship between radius and resistance
- Navras
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Box on an incline with friction, min and max forces involved
- smsport
- · Replies 4 ·
Determining Dipole Rotation: Clockwise vs Counterclockwise
- nishantve1
- · Replies 1 ·
Determine the acceleration of a rocket.
- Squizzel
- · Replies 39 ·
Finding observer latitude from zenith distance and altitude measurements
- andreea_a
- · Replies 10 ·
Newton 2nd law, forces and vectors
- roovid
- · Replies 2 ·
Rotational speed of a coil in a magnetic field
- pc2-brazil
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Rate of change of momentum. Newton 2nd law
- roovid
- · Replies 8 ·
Electric field amplitude of a sphereical wave
- sklotz
- · Replies 1 ·
Variable Resistor connected to parallel resistors
- ordem
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Find angle given tension and friction?
- theintarnets
- · Replies 7 ·
Ideas for physics experimental investigation
- FiggelHorn
- · Replies 1 ·
What is the acceleration of the runner?
- bee-gee
- · Replies 4 ·
Finding charge magnitude from tension and kinetic energy with electric force
- CombatVetUSMC
- · Replies 1 ·
Find the moment of inertia of a solid sphere.
- Squizzel
- · Replies 4 ·
Newton's Law of Cooling for Multilayers
- wally2938
- · Replies 1 ·
What Is the New Pulling Force When Wooden Blocks Are Stacked?
- utkarshakash
- · Replies 2 ·
Electric field of a ring and beads
- wbetting
- · Replies 1 ·
Finding magnitude of new electric fields
- wbetting
- · Replies 1 ·
KE realated to translational motion
- helpmeplzzz
- · Replies 5 ·
General relationship for springs connected in series
- Vandetah
- · Replies 18 ·
What Are Some Long-Term Research Questions in Particle Physics?
- david76
- · Replies 2 ·
Simplifying a resistor network using pi-T (Y-delta) conversion
- JJBladester
- · Replies 4 ·
Finding the distance given the intital velocity and the coefficient of friction
- lenalee.9520
- · Replies 9 ·
Why does friction act upward on the wire if there's no motion?
- synkk
- · Replies 5 ·
Why Does the Integral Equal Zero in Parallel Axis Theorem Proof?
- serverxeon
- · Replies 1 ·
Displacement and acceleration ( SHM? )
- Vandetah
- · Replies 7 ·
Why Does Average Speed Calculation Differ for Uphill and Downhill Travel?
- guppster
- · Replies 7 ·
Find the angula aceleration of the pulley
- Hernaner28
- · Replies 14 ·
What is the Electric Field and Spring Constant for Two Charges on a Spring?
- jdmarquardt
- · Replies 3 ·
Find the acceleration of a space station
- cabiggs22
- · Replies 2 ·
Constructive interference between two 2000Hz speakers 1.5m apart
- amit25
- · Replies 3 ·
Finding final velocity of ball and box after inelastic collision
- Squizzel
- · Replies 9 ·
Insulating Cylindrical Shell, Potential at edge
- wohzah
- · Replies 1 ·
Thermal Physics question regarding the thermal expansion coefficients
- Stolbik
- · Replies 1 ·
Makes no sense as theta is obviously obtuse
- synkk
- · Replies 2 ·
Double Atwood Machine and acceleration
- y3nx3ng3a
- · Replies 12 ·
Safe to remove inner wall of pond or will it burst?
- peter2108
- · Replies 1 ·
Instantanoeus axis of rotation
- Saitama
- · Replies 4 ·
Energy Dissipation Across a Resistor
- boredbluejay
- · Replies 3 ·
Why do we take the axis at the ground contact point in rolling motion?
- Saitama
- · Replies 13 ·
Charge moving in elliptical orbit under Coulomb field.
- AGNuke
- · Replies 2 ·
Why is 2340-100 = 2200 instead of 2240 in significant figures?
- meowers
- · Replies 6 ·
Displacement with a velocity time graph that is a parabola
- einstein101
- · Replies 1 ·
How to determine material of metal (magnetism)
- sgstudent
- · Replies 4 ·
Speed of proton parallel to insulating sheet
- GogumaDork
- · Replies 2 ·
Flux through a cube at an angle
- nilesthebrave
- · Replies 2 ·
Potential at Center of Insulating Spherical Shell
- waters
- · Replies 1 ·
1-Dimensional Motion Helicopter Problem (PPB)
- Joshpho
- · Replies 3 ·
Coefficent of friction for a box moving at cosntant speed
- jwxie
- · Replies 3 ·
Moment of Inertia for a Square and a pipe of variable density
- PrestonBlake
- · Replies 13 ·
Emissivity, radiation and heat transfer
- CeeCoops
- · Replies 1 ·
Electrostats, Gauss Theorem qusetion: Struck in middle
- PrashntS
- · Replies 1 ·
Notation for Velocity Gradient
- swmmr1928
- · Replies 3 ·
A wonderful lens-a glass of water(highschool physics)
- jadelamlam
- · Replies 1 ·
Calculating the velocity of muons as they leave an accelerator. (Info is given)
- Pinchy444
- · Replies 3 ·
Translational Motion Equation Derivation
- helpmeplzzz
- · Replies 5 ·
Conservation of momentum of two particles
- synkk
- · Replies 9 ·
Problems with acceleration results established from equations of linear motion
- Agrech
- · Replies 15 ·
Force of gravity involving astrology
- problemswithp
- · Replies 5 ·
Why is the (1/2) in the Gravity Force Term for Fluid Mechanics?
- swmmr1928
- · Replies 4 ·
True/false questions about torque and angular momentum
- rustyshackle
- · Replies 2 ·
What is the calculation for work in an adiabatic process?
- mps
- · Replies 4 ·
How much water can evaporate from a room with given humidity and temperature?
- TrpnBils
- · Replies 5 ·
Which Cart Would be Easiest to Push and Fastest on an Incline Plane?
- Oneinamill
- · Replies 3 ·
Pulleys and Mass becoming infinitely large
- puma7
- · Replies 5 ·
How Does a Calor Engine Power a 200V Generator at Different RPMs?
- wiraimperia
- · Replies 1 ·
Using Blue Laser Light for CD Players: Manufacturing Implications
- addiec206
- · Replies 1 ·
Equilibrium Position of Charged Ball near Charged Plate
- VictorWutang
- · Replies 8 ·
Force and Electric field within a cubic lattice
- VictorWutang
- · Replies 3 ·
Physics 117 problem about circuits and bulbs
- VictorWutang
- · Replies 5 ·
Calculating Electric Field for 2 Test Charges
- jprforester
- · Replies 1 ·
What Is the Height of a Particle at Momentary Rest After an Inelastic Collision?
- Ashu2912
- · Replies 6 ·
Cambridge Physics Problems: Simple Electric Circuit
- johnconnor
- · Replies 3 ·
Determining magnitude of net force with three parallel wires
- mevalle
- · Replies 3 ·
Dynamics of a particle moving in a straight line question
- synkk
- · Replies 2 ·
Calculate Velocity from a P vs T graph
- twalk353
- · Replies 2 ·
Center of mass of half square without a half circle
- SergioQE
- · Replies 17 ·
Plotting Points on a Graph (4, 0°) and (3, 27°)
- maali5
- · Replies 13 ·
Why integrating sin^2(wt) gives the half-period?
- blanxink
- · Replies 3 ·
Position at any one point on Velocity-Time Graph
- smsport
- · Replies 7 ·
Point of application of magnetic torque.
- anmol21
- · Replies 4 ·
EMF induced in solenoid by current in a loop.
- bobred
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Mass falling from spool: calculating time to floor
- cngest
- · Replies 3 ·
Find Max Compression of a Spring
- Twiggy92
- · Replies 7 ·
Spaceship trip to distant stars with relativistic speed
- catgoesmeow
- · Replies 3 ·
Electric Field inside an insulating sphere
- zgs
- · Replies 3 ·
Basic Avg Speed/Constant Acceleration train question
- smsport
- · Replies 5 ·
Distance traveled by train using forces and kinetic friction
- Mg53
- · Replies 3 ·
Finding the Minimum Kinetic Energy of Electrons in an Electric Field
- nks27
- · Replies 6 ·
Resultant velocities from 2D collision
- Hurpadurp
- · Replies 3 ·
A line charge with variable charge density
- nilesthebrave
- · Replies 7 ·
Rigid body (rectangular) collision with wall
- alterecho
- · Replies 17 ·
Calculate Power from 100mm Rotating Shaft
- John78
- · Replies 2 ·
Alert driver vs Sleepy Driver distance traveled
- smsport
- · Replies 1 ·
Gauss's law and nonuniform electric field
- boredbluejay
- · Replies 3 ·