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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A bucket of water is pulled up in humid air
- Karol
- · Replies 2 ·
Finding intensity from the Poynting vector
- OhNoYaDidn't
- · Replies 4 ·
Acceleration required to cause vehicle skid?
- Ocata
- · Replies 16 ·
What is the Mass Range M/m for the Ring to Rise as the Beads Fall?
- Karol
- · Replies 14 ·
Why does a bulb light up instantly if electron drift speed is so slow?
- Priyank
- · Replies 6 ·
Forces and Friction on a Block and a Beam
- masterchiefo
- · Replies 40 ·
Solving for time when displacement is zero with initial velocity
- Lmp
- · Replies 13 ·
Explosion of connected masses on a frictionless surface
- momo1111
- · Replies 1 ·
What is the Average Power of Energy Loss for a Bouncing Ball?
- momo1111
- · Replies 10 ·
Physical Pendulum Question (Mass on a Grandfather Clock)
- BrettF
- · Replies 6 ·
Static force equilibrium problem involving simply pully syst
- J-dizzal
- · Replies 3 ·
Inclined disk rotating on the ground
- Karol
- · Replies 10 ·
Static friction between 2 blocks and tension of string
- goldfish9776
- · Replies 35 ·
EMF induced in a square frame moving toward a current-carrying wire
- gracy
- · Replies 18 ·
PE, Work, object on inclined plane resting on a spring.
- J-dizzal
- · Replies 11 ·
Why is V_x of a projectile constant?
- NooDota
- · Replies 11 ·
Moment of inertia and the geometric center
- masterchiefo
- · Replies 6 ·
Mass Flow of Snow while Plowing?
- BabyHuey06
- · Replies 8 ·
What is the Work Done on a Rough Incline?
- Sarah00
- · Replies 6 ·
How Does Spring Force Affect Kinetic Energy and Work Done on a Block?
- J-dizzal
- · Replies 27 ·
Direction of reaction force in a circular motion
- goldfish9776
- · Replies 13 ·
Work and force problem with vectors
- J-dizzal
- · Replies 7 ·
Finding the Unknown Force on an Inclined Plane
- Sarah00
- · Replies 6 ·
Work done on an incline plane with friction
- Zsmitty3
- · Replies 6 ·
Value of Charge Q: Why Use Distance not Radius?
- random_user13
- · Replies 3 ·
Why would hot fluid retain more % heat at lower flow rates?
- @PinkGeology
- · Replies 10 ·
Centripetal force is resultant force?
- goldfish9776
- · Replies 6 ·
Open circuit armature voltage of dc machine?
- theone
- · Replies 1 ·
Finding the velocity of a spring
- NooDota
- · Replies 5 ·
Block sliding off movable ramp: why does one momentum-energy approach fail?
- entropist1
- · Replies 6 ·
Kinetic energy and work problem
- J-dizzal
- · Replies 3 ·
What is the Final Speed of the White Ball After an Elastic Collision?
- Drakkith
- · Replies 12 ·
What is the correct speed to keep the cylinder at rest?
- J-dizzal
- · Replies 2 ·
What is the charge (Coulombs) of a nanogram of electrons?
- Luke Cohen
- · Replies 3 ·
Thermal Kinetic Physics Question involving PV diagram
- KaseyKC
- · Replies 1 ·
How can I calculate the strength of a beer can / soda can?
- Mihai Ilie
- · Replies 4 ·
How Does the Coriolis Force Affect a Ball Toss on a Merry-Go-Round?
- Marvin94
- · Replies 18 ·
Electrostatics:Longitudinal charge density of conductors
- gruba
- · Replies 5 ·
Calculating Distance Traveled by a Particle using Differentiation and Graphing
- takando12
- · Replies 6 ·
Value of n for the energy level transition that produce lamb
- mss90
- · Replies 1 ·
Why do we solve i and j components of a vector using trig?
- ALRedEye
- · Replies 3 ·
What Does a Non-Relativistic Approach Mean in Quantum Mechanics?
- gracy
- · Replies 4 ·
What is the magnitude of the final momentum?
- Astraithious
- · Replies 4 ·
Algebra Problem with Capacitators
- dempster
- · Replies 4 ·
Block compressing spring with friction: energy analysis
- sunny17
- · Replies 6 ·
Solve Retardation Problem: 25m from Traffic Light
- takando12
- · Replies 2 ·
How long does the box take to reach the wall?
- radaballer
- · Replies 4 ·
Displacement Problem: Solve 5th & 3rd Turn
- takando12
- · Replies 3 ·
Newton's Third Law -- Normal vs. Tensile as Opposite of mg?
- gravityripple
- · Replies 2 ·
Finding the depth of a well from the sound delay time
- SpaceW
- · Replies 6 ·
Projectile Motion baseball Problem
- J-dizzal
- · Replies 2 ·
Time of flight of projectile motion
- goldfish9776
- · Replies 5 ·
What Is the Shortest Path an Ant Can Take Across a Cube?
- takando12
- · Replies 10 ·
Ratio of rocket's mass at maximum momentum to initial mass
- Karol
- · Replies 48 ·
Position of unknown material on electrostatic series?
- LegitSci
- · Replies 9 ·
Calculating Angular Velocity of Beads on a Rotating Hoop
- Karol
- · Replies 6 ·
Intensity of polarization vector of a plate capacitor
- gruba
- · Replies 8 ·
Solve Resistance Problem: Circuit Total Resistance
- Pwease
- · Replies 5 ·
Force on point mass at distance d from pivot under applied torque
- 24forChromium
- · Replies 9 ·
Induction motor equations question
- theone
- · Replies 1 ·
What is the Height at which the Resultant of Three Forces Acts?
- J-dizzal
- · Replies 2 ·
A circular loop over a magnetic field directed outwards
- Astraithious
- · Replies 11 ·
Circular motion problem gives 6 m/s² but not matching any choice
- Sarah00
- · Replies 2 ·
Using E=mc^2 does thermal energy add to an object's mass?
- svenskaTom
- · Replies 14 ·
Parallel Axis Theorem derived from the Displaced Axes Theorem.
- binbagsss
- · Replies 2 ·
Direction of normal reaction of the Ferriw wheel at the high
- goldfish9776
- · Replies 15 ·
Tension in a rotating ring and centripetal force direction
- Vibhor
- · Replies 19 ·
Gravitational Constant and Velocity
- DameLight
- · Replies 7 ·
Net force on officer in circular turn at 70.9 km/h
- J-dizzal
- · Replies 38 ·
Friction of a sliding box on a slope
- J-dizzal
- · Replies 11 ·
How Does Gauss's Law Apply to a Sphere with a Radial Charge Distribution?
- roam
- · Replies 13 ·
What are the tensions and movements in this force and motion problem?
- J-dizzal
- · Replies 76 ·
2 blocks connected by massless string VS. pulley system
- Ocata
- · Replies 4 ·
Electromagnetic Wave Calculations
- roam
- · Replies 19 ·
Calculating the fall of the moon in one second
- Silversonic
- · Replies 3 ·
Deriving the Hamiltonian of a system
- middleearthss
- · Replies 2 ·
How Do You Calculate the Tension in String A?
- DameLight
- · Replies 1 ·
Why Do My Pulley System Calculations Differ From My Teacher's Measurements?
- MironeDagains
- · Replies 15 ·
Did I find an error in webassign?
- FCguy
- · Replies 10 ·
Voltage across resistors in RC circuit
- Qwurty2.0
- · Replies 3 ·
What is the relationship between uncertainties in position and momentum?
- ehanes7612
- · Replies 8 ·
Find the placement for 4th mass
- leighkla
- · Replies 2 ·
Can the coefficient of friction be as high as 15.5?
- EmanuelPaz
- · Replies 12 ·
Why does increased pressure lower ice's melting point?
- Bassee
- · Replies 1 ·
What is its speed in m/s when x = 8.00m
- gijungkim
- · Replies 14 ·
What is the meaning of the 5 kVa rating in a 240:120 V transformer?
- theone
- · Replies 1 ·
Why is Static Friction Oriented Downwards on an Inclined Plane?
- DottZakapa
- · Replies 36 ·
Solving Vectors & Surfing Problem at Waikiki
- Eugen
- · Replies 11 ·
The Role of Inertia in Friction and Acceleration
- RingNebula57
- · Replies 9 ·
Electric Potential Problem - Fixed Template
- Zackkkkkk
- · Replies 2 ·
Calculating Moments for F = 70 lb
- J-dizzal
- · Replies 23 ·
Where on the X-Axis is the Net Electric Force Zero?
- Zackkkkkk
- · Replies 2 ·
How to find the potential difference with constant charge
- mattz205
- · Replies 1 ·
What is the angle of equilibrium for a rod in a hemispherical bowl?
- Tracyxyzd
- · Replies 3 ·
Energy needed to convert 2.0 kg of water to steam
- MaryBarnes
- · Replies 5 ·
5 blocks suspended from ceiling -- What are the tensions?
- Ocata
- · Replies 6 ·
How Is Tension Calculated in a Lifting Cable?
- rperez1
- · Replies 4 ·
Why Do Two Wires Carrying Currents in the Same Direction Attract Each Other?
- lavankohsa
- · Replies 1 ·
Find electric potential at a center of charged rod
- gruba
- · Replies 28 ·
Show that Newton's 2nd Law is *Not* valid in a reference frame
- Tonia
- · Replies 1 ·