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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Flux through a nonconducting shell
- reising1
- · Replies 8 ·
Angular acceleration of blender blades from rest to 2.2×10^4 rpm
- BikeSmoth
- · Replies 1 ·
Can a charged capacitor act like a smaller EMF battery in a circuit?
- clavin
- · Replies 7 ·
Direction of Rolling/Sliding Friction
- brendan3eb
- · Replies 5 ·
Work Bicycle Problem: Calculate Work Done in Each Stroke
- timficker
- · Replies 3 ·
How Is Impulse Calculated in Volleyball Spiking?
- sheepcountme
- · Replies 3 ·
What is the Direction of the Magnetic Field Needed to Levitate a Copper Rod?
- matt72lsu
- · Replies 1 ·
How Long Can the Climber Hang Before the Rock Falls?
- pediepit
- · Replies 3 ·
Induced current in moving Mercury
- RoyalCat
- · Replies 3 ·
How Do You Calculate the Mass of a Trailer Using Newton's Second Law?
- SeanGillespie
- · Replies 1 ·
Calculating Current and Torque in a Rectangular Loop
- matt72lsu
- · Replies 4 ·
Carnot Engine Work Output w/Monatomic Gas: 288K to 497K
- brockjensen
- · Replies 4 ·
Maximum altitude of a rocket in 2D motion and free body motion
- optoracko
- · Replies 1 ·
Surface integral of A·n dS on plane 2x+y=6 bounded by z=4
- bon
- · Replies 2 ·
Acceleration direction for a car turning at constant speed
- Callistal
- · Replies 1 ·
Calculating Forces When Bouncing a Ball
- Sirsh
- · Replies 17 ·
Solve Kinematic Problem: Mountain Climber Throws Stones
- optoracko
- · Replies 1 ·
Gravitational Forces and Motion in a System of Four Bodies
- whiteway
- · Replies 3 ·
Determining the weight of an object, given force to move it
- Bearbull24.5
- · Replies 3 ·
How to Convert a 8V Voltmeter to 20V with Same Ohms per Volt Rating?
- kihr
- · Replies 4 ·
Finding tungsten filament diameter from resistance
- bob12345
- · Replies 1 ·
Distance after pushoff between two objects
- spider3367
- · Replies 5 ·
Perpendicular Inelastic Collision
- sheepcountme
- · Replies 2 ·
Deriving Projectile Motion Equations from Initial Conditions
- charris316
- · Replies 1 ·
How Is Work Calculated in Gravitational Fields?
- 3.141592654
- · Replies 2 ·
How do I find the acceleration of a crate based on weight?
- spider3367
- · Replies 6 ·
Magnetic Fields and Two circular loops of wire
- PhilCam
- · Replies 9 ·
Deriving Projectile Motion Equations
- charris316
- · Replies 1 ·
What is the acceleration when the spring compression is greatest?
- contlee
- · Replies 3 ·
Charges betweenand outside parallel sheets
- Linus Pauling
- · Replies 6 ·
Magnetism (Current-Carrying Wires)
- Charanjit
- · Replies 6 ·
Hanging box - radius, length, mass, speed
- mybrohshi5
- · Replies 15 ·
What is the average force exerted on the ball by the floor during the bounce?
- recoil33
- · Replies 1 ·
Kinematics, Acceleration on negative side of x axis
- PSchoenburger
- · Replies 1 ·
Capacitance: 24µF, 30V - Calculate Charge
- isuck@physics
- · Replies 2 ·
Circular Motion and Banked Curves
- erin.grae
- · Replies 1 ·
A problem with finding torque and power associated with two flywheels
- TeaCup
- · Replies 3 ·
Charge density-related question
- Linus Pauling
- · Replies 1 ·
Calculating centripetal acceleration between moon and satelite
- okgo
- · Replies 1 ·
Charge on a glass bead derived from potential difference between 2 points
- samdunhamss
- · Replies 2 ·
Solving for initial velocity Projectile Motion
- clark1089
- · Replies 1 ·
How Do Conservative Forces Affect Potential Energy and Velocity?
- PennStateFan1
- · Replies 1 ·
Calculating angular displacement of clockhands
- DeeAussie
- · Replies 1 ·
Why Do α and ω Lack Vector Signs in My Professor's Derivation?
- jumbogala
- · Replies 1 ·
Finding net charge on ball in electric field with string at angle
- Number1
- · Replies 1 ·
Magnitude and direction of resultant force from two perpendicular forces of 10N and 15N
- waterwalker10
- · Replies 3 ·
Energy conversation and friction
- cdotter
- · Replies 2 ·
What Torque is Needed to Prevent a Rod from Rotating?
- aligass2004
- · Replies 12 ·
What Is the Maximum Velocity of a Particle on a Tensioned String?
- oldunion
- · Replies 7 ·
Net work problem (attempted solution)
- tyger_eyes
- · Replies 4 ·
Number of Nodal Lines in Two-Point Interference Pattern
- caramel22
- · Replies 1 ·
Frequency, Time, Wavelength = Doppler Effect
- UMDstudent
- · Replies 3 ·
Is there a way to find out the theoretical stretch of an elastic band?
- kodadra
- · Replies 1 ·
Finding the periods of red and blue light waves
- jimmer
- · Replies 1 ·
Mass-spring system on an incline
- easchwen
- · Replies 1 ·
Potential Function from a simple conservative force
- K29
- · Replies 2 ·
Can You Catch the Bus If It Starts Accelerating While You're Running to It?
- mat331760298
- · Replies 1 ·
Normal force increasing friction to stop a sliding block
- SoulInNeed
- · Replies 4 ·
Coefficient of static friction with radius, speed, etc. given
- MissPenguins
- · Replies 18 ·
What is your acceleration towards the end of the cliff?
- mat331760298
- · Replies 1 ·
What is the tension in the cord connecting the two blocks at this instant?
- huybinhs
- · Replies 4 ·
Football Throw - Could be Relative Motion?
- erok81
- · Replies 10 ·
What is the Coefficient of Static Friction for a Car on a Circular Track?
- Bearbull24.5
- · Replies 9 ·
Kinetic Energy and Magnetic Fields
- PhilCam
- · Replies 2 ·
Can Helicopters Use Earth's Rotation to Save Time?
- optoracko
- · Replies 2 ·
Jet Engine Sound Intensity Calculation with Absorption Effects
- JazzCarrot
- · Replies 2 ·
Fluid Force Direction on Airfoil: Compressor vs. Turbine Design
- krnhseya
- · Replies 2 ·
Force exerted by a magnetic field
- apt8
- · Replies 2 ·
Adding a dielectric to capacitors
- Physics197
- · Replies 3 ·
What is the tension in a hanging chain problem?
- huybinhs
- · Replies 27 ·
Finding Reactions on Members Supported by Forces
- 385sk117
- · Replies 4 ·
How much water does the cube displace?
- STLFAMILY
- · Replies 1 ·
Real Life Applications of Circular Motion involving Liquids
- yik-boh
- · Replies 5 ·
Determining metres that a frequency produces
- SoConfused__
- · Replies 4 ·
A block of mass m1 = 2.40kg is connected to a second block of mass m2 = 1.80kg
- krystek01
- · Replies 2 ·
What is the force exerted by one crate on the other?
- huybinhs
- · Replies 5 ·
Determine the coefficient of friction
- retracell
- · Replies 2 ·
Compute the resulting acceleration
- huybinhs
- · Replies 1 ·
SHM/Pendulum Prob: Solving Last 2 Parts of the Problem
- Koncept
- · Replies 2 ·
Friction Forces (Static Friction)
- huybinhs
- · Replies 10 ·
Finding velocity and kinetic energy for a marble on a roller coaster segment
- DanialD
- · Replies 3 ·
Solving the Capacitor Circuit: Final Charge on 1.00 micro-F Capacitor
- azure kitsune
- · Replies 2 ·
Physics Lab Uncertainties: Natural Log Method
- CINA
- · Replies 1 ·
Magnetic field at center of square from four perpendicular wires
- Nyasha
- · Replies 1 ·
Find the coefficient of friction
- huybinhs
- · Replies 6 ·
Saturation of Y-Shaped Iron with Permanent Magnet
- samjesse
- · Replies 3 ·
Four Wires and y component of magnetic field at center
- skibum143
- · Replies 2 ·
Vertical deflection of aluminum nail supporting 25.5 N load
- ambnj99
- · Replies 9 ·
Dielectric Constant Computation
- cjX
- · Replies 7 ·
Finding phase difference based on distance
- Eigengrau
- · Replies 1 ·
Thermo and Projectile Motion: Bathtub Bather Launch Calculation
- jbyrd5014
- · Replies 1 ·
How much work is done to move 1.7 microCoulombs ?
- csimon1
- · Replies 3 ·
Initial Velocity of Dog Jumping 0.20 m: 0 m/s
- boneill3
- · Replies 4 ·
How to interpret kinematics problems quickly and correctly
- ryan8642
- · Replies 6 ·
How Fast Will Ms. Reach the Top of the Ramp?
- renee1234
- · Replies 1 ·
Understanding the Behavior of a Parallel Plate Capacitor: True or False?
- Physics197
- · Replies 3 ·
Fluid statics specific gravity question
- oates151
- · Replies 6 ·
In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms.
- csimon1
- · Replies 9 ·
Electric field strenth question
- dev-hud
- · Replies 1 ·
Charging a conducting sphere with two currents to reach 5 V
- raindrops
- · Replies 5 ·