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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Solving Part (a) of Lamp Mass in Descending Elevator w/ Deceleration of 1.4 m/s2
- shell4987
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Solving for Unknown Force with Two Given Forces and Constant Velocity
- shell4987
- · Replies 2 ·
Finding the angle of 3-dimensional vectors.
- niyati
- · Replies 3 ·
Net Force Calculation Using Velocity Graph
- aligass2004
- · Replies 8 ·
Net force on driver in head-on collision with and without seat belt
- aligass2004
- · Replies 8 ·
Calculating Tension in Suspended Loudspeaker Cables
- aligass2004
- · Replies 24 ·
What is the magnitude of the force of the car on the truck?
- aligass2004
- · Replies 21 ·
Electric Potential - first concepts
- mitleid
- · Replies 8 ·
What constant force must Bob exert on the rock to throw it with this speed?
- aligass2004
- · Replies 15 ·
Tension in rope with 100N weight sagging 0.25m
- willpower101
- · Replies 4 ·
How to Solve an Old Speed/Trajectory Problem When Standard Methods Fail?
- HeLLz aNgeL
- · Replies 4 ·
Single Slit/Diffraction Problem
- Huskies213
- · Replies 1 ·
How Does Projectile Motion Calculate Distance and Height?
- tdusffx
- · Replies 6 ·
Constant acceleration question
- DawnJohn
- · Replies 5 ·
Forces involving static friction
- america8371
- · Replies 1 ·
What is the acceleration of an object moving with a constant acceleration?
- CoverlessTech
- · Replies 3 ·
Velocity of Motorist with Respect to Police Car at Intersection
- sylenteck0
- · Replies 5 ·
What is the tension in the cord of a helium balloon tied to a child's wrist?
- physicsperson
- · Replies 9 ·
What is the acceleration of an object with two given forces acting on it?
- mslena79
- · Replies 3 ·
Calculate the Volume of an Iceberg
- PaulFehr
- · Replies 13 ·
Forces between 3 charged particles
- Badger
- · Replies 2 ·
Ionic Bonding p.2: Na+¹ + O-² to Na2O?
- jleposky
- · Replies 2 ·
After what time interval does the ball strike the ground
- 012435
- · Replies 5 ·
Find an FM Radio station's wavelength, frequency given
- aliaze1
- · Replies 2 ·
Combining ions to make ionic compounds
- jleposky
- · Replies 2 ·
Some more angles and refraction a little twist this time
- aliaze1
- · Replies 2 ·
A toy car has a mass of 120g, including two 1.5V batteries connected in series.
- Xaspire88
- · Replies 9 ·
Charged Aluminum Spheres: Determining Number of Electrons
- Badger
- · Replies 2 ·
Solve Drowsy Cat Flower Pot Height Question
- rootX
- · Replies 1 ·
Understanding Venturi Pump: Calculating Fluid Flow and Suction Speed
- Idea04
- · Replies 1 ·
Solve Engineering Problem: Air Flow Speed in Duct for 3x4.5x6m Room
- physicnow
- · Replies 3 ·
Newton's Third Law: Understanding Forces Between Compact Cars and Vans
- Tennisgrl
- · Replies 1 ·
Speed and magnitude of velocity
- mit_hacker
- · Replies 1 ·
Block on 30.3° incline connected to hanging mass over pulley
- shell4987
- · Replies 3 ·
How High is the Arrow at 150 Meters Downrange?
- physicnow
- · Replies 1 ·
Boat's acceleration as rain accumulates
- mit_hacker
- · Replies 1 ·
What is the Minimum Speed for a Diver to Clear a Cliff Ledge?
- Ecterine
- · Replies 3 ·
Can someone check my precision for a meter stick, vernier cailper, and micro
- twotaileddemon
- · Replies 2 ·
Where Should the Third Mass Be Placed to Experience No Net Gravitational Force?
- sheri1987
- · Replies 1 ·
Do two coplanar couples with equal and opposite moments balance each other?
- darklide
- · Replies 6 ·
How Do Hyperbolic Functions Relate to Trigonometric Functions?
- Oblio
- · Replies 44 ·
What is the speed of the crossbow arrow when it is released?
- Ryo124
- · Replies 8 ·
Resolving power on an inclined slope
- ZeuZ
- · Replies 3 ·
Integrating Newton's second law for projectile motion position
- Oblio
- · Replies 54 ·
Car acceleration calculation problem
- AraProdieur
- · Replies 3 ·
The addition of three simple harmonic motion
- smithg86
- · Replies 2 ·
Calculating Distance and Height of a Tossed Ball in 2D Motion
- tdusffx
- · Replies 2 ·
Calculating Car Speed After Sudden Braking
- 012435
- · Replies 1 ·
Find the electric field produced by the atom at the Bohr radius
- indigojoker
- · Replies 9 ·
Force needed at each end to support a 10 ft rod with 20 lb weight 6 ft from end
- Mike McCue
- · Replies 15 ·
Tension is horizontal rope tied to hooks at each end
- Jwill
- · Replies 4 ·
Calculate the Resultant Vector of 3D Vectors
- chemguy990
- · Replies 3 ·
A Mass on a Turntable: Conceptual
- Vivee=)
- · Replies 2 ·
Impact of a ball due to gravity and momentum
- lacrias
- · Replies 1 ·
Thin Lens Equation - Hypothesis
- J-Wang
- · Replies 1 ·
Rocket with variable mass and constant thrust for 1 minute
- Sean77771
- · Replies 8 ·
Refraction problem, involving mirrors
- aliaze1
- · Replies 1 ·
Car collision after braking with reaction time delay
- saber1357
- · Replies 9 ·
(special relativity) derivation of gamma with approximation of v c
- msimmons
- · Replies 8 ·
Will a Passenger Slide Off the Seat Without a Seat Belt?
- Sean77771
- · Replies 6 ·
Solving for Speed of Blocks in Uniform Pulley System
- Littlemstrouble
- · Replies 2 ·
How Do You Calculate Direction in Vector Displacement Problems?
- kraaaaamos
- · Replies 2 ·
Excess electrons on a lead sphere
- save the ape
- · Replies 2 ·
Ice mass to cool 350 g water from 69.7°C to 33°C
- lostinphysics44
- · Replies 15 ·
Dolphin swimming home against a southeast current
- Jtappan
- · Replies 9 ·
Net displacement after Jim walks 100m south, 60m east, 20m north
- kraaaaamos
- · Replies 7 ·
What Is the Resultant Force When Two People Pull on Ropes Attached to an Object?
- motoxtremechick
- · Replies 2 ·
Solve for Theda: sin2theda = 0.339
- mathcrzy
- · Replies 2 ·
Rocket Force - Max Range vs. Time
- bphysics
- · Replies 5 ·
Can't remember how I got these answers
- chaotixmonjuish
- · Replies 9 ·
Finding the Angle of Release for a Dive-Bomber in 2D Motion
- missbinky
- · Replies 3 ·
Relative Velocities with angles
- Jtappan
- · Replies 1 ·
Size and direction of the change in velocity
- coconut88
- · Replies 3 ·
How Do You Solve for Time and Final Velocity in Physics Equations?
- kraaaaamos
- · Replies 1 ·
Calculating Bee Motion: Speed, Distance and Time
- kraaaaamos
- · Replies 1 ·
Thermal Expansion on Pendum- Period related question
- joeyscl
- · Replies 8 ·
Moment of inertia of wooden sphere with lead coating
- azila
- · Replies 8 ·
How Do Squared Vector Components Relate to the Dot Product?
- Oblio
- · Replies 4 ·
Ice Skating Collision: Solving a Physics Problem
- shell4987
- · Replies 2 ·
Ball Freefall Problem: Calculating Distance Traveled by Ball and Stone in m"
- AraProdieur
- · Replies 2 ·
Finding the Magnitude of Pushing Force with Kinetic Friction?
- jr4life
- · Replies 14 ·
Displacement: Magnitude and Direction
- kraaaaamos
- · Replies 1 ·
Minimum acceleration for plane to take off on 950 m runway
- Spikyhed
- · Replies 8 ·
Worker lifts sign with 250 N rope force at 50 degrees
- motoxtremechick
- · Replies 6 ·
Uncertainty propagation for sum divided by product
- lapo3399
- · Replies 3 ·
Ball and stone thrown upward at different times—where do they meet?
- AraProdieur
- · Replies 2 ·
How Fast is the Car When It Passes the Train?
- AraProdieur
- · Replies 1 ·
Motion of a projectile thrown from a plane
- drewbie55
- · Replies 10 ·
Speed of a helicopter determined by sonar
- raman911
- · Replies 3 ·
Solving an Angle with Trigonometry
- klm
- · Replies 1 ·
Is My Calculation of Centripetal Force Correct?
- quickclick330
- · Replies 1 ·
What Are the Maximum and Minimum Resultants of Vectors with Magnitudes 4 and 5?
- brittbratt117
- · Replies 5 ·
Momentum of child running problem
- quickclick330
- · Replies 5 ·
Man jogging at 1.5 m/s with dog chasing at 3.8 m/s
- AraProdieur
- · Replies 4 ·
How Does a Vertical Force Affect the Acceleration of a Two-Block System?
- brriney
- · Replies 2 ·
Why the distance increases is because the car switches lanes?
- brittbratt117
- · Replies 2 ·
Finding angles in a 3D vector problem
- ThomasHW
- · Replies 1 ·
Newton's Laws of Motion on a helicopter
- brriney
- · Replies 1 ·
Two cars passing on opposite directions: is passing speed 0 or 250 km?
- sandy
- · Replies 1 ·