Introductory Physics Homework Help Forum

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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2

How to find velocity as a function of time?

  • veronicak5678
  • · Replies 10 ·
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What is the density of a block 35% submerged in a liquid?

  • yoleven
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Mean surface level atmospheric density

  • Winzer
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2
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Simple Acceleration and Velocity Problem

  • veronicak5678
  • · Replies 5 ·
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5

Distance and time between 2 train stations

  • sktgurl930
  • · Replies 5 ·
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5

Velocity squared vs position graph

  • azn4lyf89
  • · Replies 3 ·
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3

River and boat velocity problem

  • akbro93704
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What is the magnitude of the uniform electric field

  • salome
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Field Magnitude and force question

  • crh
  • · Replies 5 ·
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5

Average acceleration of golf ball bouncing on concrete

  • Argento7
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1
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1
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Calculating Minimum Trailing Distance in a Reaction Time Scenario

  • Argento7
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Plane drops packages confounded again

  • Phoenixtears
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Work-Energy Theorem in Inertial Reference Frames

  • Quelsita
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3
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Confounded by King Arthur's knights

  • Phoenixtears
  • · Replies 5 ·
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Calculating Velocities of Charged Balls Released from 1m Distance

  • devanlevin
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How high must a shot tower be for 4.0s solidification?

  • Lida
  • · Replies 13 ·
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13
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Centripetal force on a stunt pilot

  • nokia8650
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Conceptual question: Atmospheric pressure

  • johnj7
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2
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What Equations Calculate Ball Trajectory and Force in Physics Problems?

  • crhscoog
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How to Find initial Velocity at 90 degrees with only a time variable given

  • cloakblade5
  • · Replies 1 ·
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Block on incline with friction and applied force

  • sedaw
  • · Replies 8 ·
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Train Collision Stopping distance Problem

  • SharkFin39
  • · Replies 4 ·
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Velocity to jump building to building

  • bmarvs04
  • · Replies 4 ·
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How High Does a Rocket Climb After Fuel Depletion?

  • kurosaki69
  • · Replies 8 ·
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Which answer choices are correct for this physics problem?

  • Miguel89
  • · Replies 8 ·
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Freight wagon collision: find speed, acceleration and force

  • ollieman
  • · Replies 11 ·
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11

Ideal gas in a cylinder closed by a piston connected to a spring

  • amcca064
  • · Replies 6 ·
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6
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How Do You Calculate the Angle of Inclination for a Slide?

  • chronie
  • · Replies 4 ·
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Sketching velocity graph from acceleration graph

  • azn4lyf89
  • · Replies 3 ·
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Simple wave questions- am I right?

  • bcjochim07
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Photon's emmited by a 100w bulb.

  • Seda
  • · Replies 1 ·
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What is the Density of the Earth in Pounds per Cubic Foot?

  • 964js7
  • · Replies 13 ·
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13

Officer overtaking soldiers (tricky problem)

  • FatheadVT
  • · Replies 1 ·
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Calculating Electric Field Due to Multiple Charged Balls

  • cowmoo32
  • · Replies 6 ·
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Accel. of eletron in Electric field.

  • Lance WIlliam
  • · Replies 3 ·
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3
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Vector Addition and Resultant Velocity in Air Travel

  • Morhas
  • · Replies 8 ·
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Calculating Electrostatic Force on a Charge in a Compass

  • mersad
  • · Replies 1 ·
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1

Rock thrown horizontally from cliff, falls half height in last 3 seconds

  • cmsoccer21
  • · Replies 1 ·
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Finding distance with known constant acceleration

  • tater08
  • · Replies 3 ·
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Resultant Vorces and Moment (aircraft problem)

  • clickcaptain
  • · Replies 6 ·
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Current decay in closed circuit with only 1 resistor

  • GarethB84
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Minus signs on Voltage and potential energy

  • blumfeld0
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What is the magnitude of the acceleration of the center of mass

  • noppawit
  • · Replies 5 ·
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Calculating Wing Tip Acceleration and Velocity in a Flapping Fly

  • Larrytsai
  • · Replies 2 ·
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2

How Does Changing a Planet's Radius Affect Its Mass?

  • unseenoi
  • · Replies 3 ·
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Finding Earth's surface area and volume from its radius

  • Darkhrse99
  • · Replies 4 ·
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Dimensional analysis of period formula and energy units

  • Dig
  • · Replies 11 ·
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11

Help with starting a physics problem

  • Jbright1406
  • · Replies 5 ·
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5

What do areas under position, velocity and acceleration graphs represent?

  • azn4lyf89
  • · Replies 1 ·
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Pretty simple distance traveled given acceleration problem

  • BC2210
  • · Replies 2 ·
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Hydrolic Pressure and Bulk Modulus

  • vMaster0fPuppet
  • · Replies 3 ·
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Projectile Motion/Vertex small problems.

  • CDink
  • · Replies 27 ·
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Determining Electric Field at Origin Due to Charges A and B

  • 0338jw
  • · Replies 2 ·
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Golf Displacement: 4.19m, 20° North of East

  • Caitlin.Lolz.
  • · Replies 5 ·
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Electric Forces: Calculating Charge on Two Spheres

  • Kris1120
  • · Replies 4 ·
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4

Can You Avoid Hitting the Tractor on a Country Road?

  • bmiller13
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Solve Angular Problems: Rad/s, Revolutions, Acceleration

  • fate119
  • · Replies 1 ·
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Can You Solve These Physics Puzzles Before Tomorrow's Deadline?

  • emjez15
  • · Replies 6 ·
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6
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Solar power from 100W bulb intensity at 0.1 m

  • shanie
  • · Replies 3 ·
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Which Body Reaches the Bottom First?

  • brainracked
  • · Replies 17 ·
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17

Calculate A for Person's Arms in Oscillatory Motion

  • sheri1987
  • · Replies 1 ·
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How Is the Force on Object B Expressed in Terms of Acceleration a?

  • sedaw
  • · Replies 1 ·
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(kinematics) Is it to derive into radial and transverse components?

  • fociboy
  • · Replies 1 ·
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1

Velocity and Acceleration of Cars

  • mossfan563
  • · Replies 16 ·
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16

How Does a Frictionless Surface Affect Bullet Penetration Depth?

  • Oerg
  • · Replies 1 ·
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Force mechanical oscillator and frequency independent?

  • hemetite
  • · Replies 2 ·
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Answer: Calculating Velocity of 1000kg Rocket After Launch

  • johnlu66
  • · Replies 2 ·
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Average velocity and acceleration

  • Kajayacht
  • · Replies 4 ·
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Finding vector B given F = q(v × B) with Bx = By

  • grosenblatt
  • · Replies 1 ·
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When and Where Do Two Cars Collide? A Velocity Analysis

  • aziegler@uark
  • · Replies 2 ·
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Showing momentum will be conserved in moving reference frame

  • briteliner
  • · Replies 6 ·
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What is the Diameter of an Oil Slick Spreading on a Lake?

  • homeworkboy
  • · Replies 16 ·
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16

How Long Does It Take for a Wrecking Ball to Fall to the Ground?

  • pstfleur
  • · Replies 3 ·
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3

Can a Tourist Outrun a Bear to Reach Safety?

  • Skully7780
  • · Replies 3 ·
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A problem regarding momentum(from an entrance exam to Uni in Japan)

  • fantasy
  • · Replies 12 ·
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12

How Do We Calculate the Mass of Binary Stars Like Centauri A and B?

  • PSEYE
  • · Replies 1 ·
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1
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9
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5

Electric field of a point of charge

  • ibaraku
  • · Replies 3 ·
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How Do You Express Vector C in Terms of A, B, and Theta?

  • swooshfactory
  • · Replies 1 ·
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1

Gravitational Force of Three Identical Masses

  • PSEYE
  • · Replies 1 ·
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Calculating Time for a Ball Rolling Down an Inclined Plane

  • Nuha99
  • · Replies 3 ·
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What is the value of the damping constant?

  • hemetite
  • · Replies 2 ·
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Why Does Faraday's Law of Induction Consider Coil Area Instead of Length?

  • Galadirith
  • · Replies 11 ·
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Model Rocket question regarding height,time,acceleration

  • rsfancy
  • · Replies 2 ·
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Find the geometric relation between vectors A and B

  • pf09
  • · Replies 9 ·
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