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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Time it takes for a rocket to reach maximum acceleration
- becky_marie11
- · Replies 4 ·
Is work done by friction the same as thermal energy?
- Supernejihh
- · Replies 3 ·
Box on a sphere is nudged- when does it fall off?
- Aesops
- · Replies 2 ·
Three approaches to magnitude of average velocity
- LearninDaMath
- · Replies 17 ·
Calculating Motion of a Mass Attached to a Spring on an Inclined Plane
- emc92
- · Replies 5 ·
Solving for Time When a Ball is Dropped 85 Feet
- hatelove
- · Replies 8 ·
How do you find time given vi, acceleration, and displacement
- xcfzm94
- · Replies 1 ·
Position and acceleration vector - parallel and perpendicular
- logearav
- · Replies 2 ·
Determine the time required for a missile to reach its maximum altitude of 21 km
- goracheski
- · Replies 1 ·
Max Speed of 0.20 kg Mass on Rotating Turntable
- kenau_reveas
- · Replies 3 ·
What Is the Focal Length and Magnification in Multi-Lens Systems?
- sz0
- · Replies 3 ·
How Does a Motorcycle Exert Force Backward to Accelerate?
- whereitsbeen
- · Replies 3 ·
Two boxes connected by strings at an angle
- dban
- · Replies 1 ·
How to find velocity relative to air when wind velocity is given
- nesan
- · Replies 2 ·
Solving for time with the quadratic formula in d=vit+½at²
- goracheski
- · Replies 1 ·
I must be wrong, instantaneous speed-Conceptual ?
- CherryXBOMB
- · Replies 5 ·
Wave on a string general theory
- ObviousManiac
- · Replies 1 ·
Convert 17,660 ft/min to mi/hr: Math Error?
- cwalker8184
- · Replies 2 ·
Radioactvity - Specimen CCEA papers
- borysek01
- · Replies 1 ·
Eastward Velocity, But A Westward Acceleration?
- FriskyPanda
- · Replies 2 ·
Calculating Acceleration of a Mass in 2D Plane
- PhysicsCCR
- · Replies 1 ·
Center of Mass/Moment of Inertia Question
- Victorzaroni
- · Replies 5 ·
Surface Charge Density of a Neutral Conducting Cube
- inevitable08
- · Replies 1 ·
Calculating Percent of Kinetic Energy Lost
- Caps1394
- · Replies 6 ·
Tension in elevator cable stopping from 3.89 m/s over 2.70 m
- PhysicsCCR
- · Replies 2 ·
Normal force always point perpendicular to the plane?
- aaaa202
- · Replies 9 ·
Motion, Power, Energy Questions
- ZorAxe
- · Replies 4 ·
Can the Period of a Damped Oscillator Be Detected Accurately?
- kgal
- · Replies 4 ·
Calculating Young's Modulus for a Rod Using Pressure and Diameter Measurements
- aby217
- · Replies 2 ·
Why Capacitors Store Half The Charge They Are Given
- Dark Red Rose
- · Replies 3 ·
How Does Lens Focal Length Affect Image Size on a Wall?
- Darth Frodo
- · Replies 1 ·
Finding the Right String Length for a Dropping Mass
- Masaharustin
- · Replies 5 ·
Calculate acceleration of gravity using chi-square
- bznm
- · Replies 1 ·
Forces, vectors and acceleration
- netrunnr
- · Replies 6 ·
Balance of a car on an inclined plane
- okh
- · Replies 8 ·
Gauss's Law - Insulating Material
- forestmine
- · Replies 13 ·
Why Does the Block Rise to a Different Height After Being Struck by a Bullet?
- sid123
- · Replies 3 ·
Voltage Drop over Constant Current Circuit
- chronotied
- · Replies 4 ·
Advanced Forces Question, Air Resistance and Friction.
- Victorzaroni
- · Replies 12 ·
E Field Magnitude at Origin due to Single Charge 5cm Above
- sasuke07
- · Replies 28 ·
Gravitational force between the Earth and the Sun
- yumito
- · Replies 3 ·
Magnitude of an electric field at two points
- zeroeclipse
- · Replies 1 ·
Baseball hit at 60 m/s at 30 degrees: finding time and range
- PinguNinja
- · Replies 6 ·
Solid cylinder with nonuniform volume charge density?
- LumiKnight
- · Replies 5 ·
How to calculate position and velocity?
- pill
- · Replies 3 ·
Half-Life of He-6 Nucleus: 40 GeV
- sawhai
- · Replies 5 ·
Calculating Magnetic Field Due to a Current at a Given Point
- GeorgeCostanz
- · Replies 6 ·
Thermodynamics-how to tell if a gas is an ideal gas?
- pyroknife
- · Replies 2 ·
Rate of Field Change for Induced Current of Loop
- tevatron1
- · Replies 13 ·
How Does Connecting Two Spheres Affect Charge Distribution?
- jaguar7
- · Replies 8 ·
Angular Velocity/Motion Question
- Victorzaroni
- · Replies 12 ·
(UCM) Maximum Rev. Per Minute Using Length and Acceleration
- oziemaster
- · Replies 1 ·
Converting 8.2 × 10^19 pm to miles
- cwalker8184
- · Replies 3 ·
Does Internal Energy of an Ideal Gas Change with Heat Transfer?
- jean28
- · Replies 1 ·
Why is a free piston process isobaric for refrigerant-134a?
- pyroknife
- · Replies 3 ·
Calculating Time Interval and Speed of Inertial Clock
- rh23
- · Replies 1 ·
Find Wave Crest Separation Near Shore
- AdkinsJr
- · Replies 3 ·
Determine speed of bar and average frictional force
- shinchung24
- · Replies 1 ·
Horizontal projectile, NOT GIVEN INITIAL VELOCITY
- xannaxiero
- · Replies 11 ·
Kinetic energy and momentum (Conceptual Question)
- ScienceGeek24
- · Replies 3 ·
How Do You Calculate the Electric Field at a Point Near a Charged Thin Rod?
- chris_avfc
- · Replies 20 ·
Spring toy(Kinematics) check my solution(s)
- supernova1203
- · Replies 4 ·
Time it takes a 3-body gravitational system to complete one orbit?
- UTlonghorn
- · Replies 3 ·
What is the Average Speed Computation Problem on a Hill?
- Bashyboy
- · Replies 2 ·
Mass sliding down surface of a sphere
- Victorzaroni
- · Replies 1 ·
Radial resistance of coaxial cable
- azaharak
- · Replies 2 ·
How Does Faraday's Law Apply to EM Plane Waves in Conducting Loops?
- jegues
- · Replies 3 ·
Electrons hitting a charged copper sphere
- AnthroMecha
- · Replies 2 ·
Conservation of Energy/Motion Question
- Victorzaroni
- · Replies 4 ·
Finding electrons needed to change iron arrowhead charge from 2.1 μC to -2.82 μC
- Snape1830
- · Replies 9 ·
Capacitors in Series: Finding Charge on Each After Reconnection
- funoras
- · Replies 2 ·
Applied force increase/decrease kinetic energy
- kerrynet32
- · Replies 3 ·
Design a human-powered machine
- seve
- · Replies 5 ·
Temperatures of concentric spherical shells with central radiation source
- eric.mercer92
- · Replies 7 ·
What is the strength of the magnetic field
- warrior2014
- · Replies 2 ·
Conservative and non-conservative systems
- mpkannan
- · Replies 1 ·
Relationship betwen SHM frequency and harmonic oscillator freq.
- songbird7
- · Replies 1 ·
What charge must a spherical raindrop of diameter 1.0 mm carry if it remains suspend
- duggielanger
- · Replies 10 ·
Forces and acceleration - two masses instead of one
- iJamJL
- · Replies 11 ·
I cant figure out what the potential difference between this two points is.
- aznking1
- · Replies 8 ·
Satellite falling to Earth after collision at orbit 2R
- vivekrai
- · Replies 9 ·
Discharging capacitor, the differential equation
- Sefrez
- · Replies 4 ·
Stable equilibium of a potential
- rbwang1225
- · Replies 2 ·
Why Do Different Conservation Laws Give Different Results in SHM Problems?
- kushan
- · Replies 3 ·
Magnetic Field at center of circle on rectangular circuit
- soccerscholar
- · Replies 1 ·
Electric field and potential of 2 point charges
- soccerscholar
- · Replies 2 ·
DFT Symmetry Property: Why Does the Answer Not Void This Property?
- Shaheers
- · Replies 1 ·
Two boxes sliding down a 20° ramp.
- twils_21
- · Replies 2 ·
Work calculation for isothermal compression
- PNGeng
- · Replies 1 ·
Addition of 2-D vectors and relative velocity
- Bruce_Wayne
- · Replies 1 ·
Change in length of aluminum and steel bars compressed end to end
- Angie_Agnes
- · Replies 11 ·
Force of a parachute on parachutist
- testme
- · Replies 2 ·
Motion of particle in an electric field
- Falken_47
- · Replies 2 ·
Will sound be affected by gravity in this simple problem?
- iJamJL
- · Replies 2 ·
Vine breaks during tarzan's swing at what angle?
- Koscher
- · Replies 10 ·
3 boxcars moving along frictionless track hits a motionless boxcar
- chaotiiic
- · Replies 2 ·
Does the mass in the SHM period equation include the spring mass?
- Peter G.
- · Replies 1 ·
What is the deviation angle in optics?
- trivk96
- · Replies 1 ·
At what point on the x-axis is the Electric Potential zero?
- Minhtran1092
- · Replies 1 ·
Max distance of rectangle that electron beam can pass through
- kkcolwell
- · Replies 3 ·