What is Height: Definition and 1000 Discussions

Height is measure of vertical distance, either vertical extent (how "tall" something or someone is) or vertical position (how "high" a point is).
For example, "The height of that building is 50 m" or "The height of an airplane in-flight is about 10,000 m".
When the term is used to describe vertical position (of, e.g., an airplane) from sea level, height is more often called altitude.
Furthermore, if the point is attached to the Earth (e.g., a mountain peak), then altitude (height above sea level) is called elevation.In a two-dimensional Cartesian space, height is measured along the vertical axis (y) between a specific point and another that does not have the same y-value. If both points happen to have the same y-value, then their relative height is zero. In three-dimensional space, height is measured along the vertical z axis, describing a distance from (or "above") the x-y plane.

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  1. R

    How do i account for the height for projectile motion

    Homework Statement A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00 m above the ground and experience negligible air resistance. (a) How far from where the child is standing does the ball hit the ground? (b) How...
  2. FactChecker

    Damage height versus waterline when ships collide

    I am curious. There have been two collisions recently between a military ship and a large commercial ship. Both times, the military ship was damaged at the waterline and the other ship was damaged far above the waterline. How does that happen?
  3. M

    Thin film interference—find the height of a wedge

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  4. Pushoam

    At what height does this plank leave the wall

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  5. Alexanddros81

    Compute the angle θ that will maximize the height of h of the impact point

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  6. S

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  7. J

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  8. Alexanddros81

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  9. C

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  10. J

    Off center fed dipole input impedance vs height above ground

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  11. J

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  12. R

    Energy required to slow mass falling from "X" height

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  13. AdrianMachin

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  14. Const@ntine

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  15. binbagsss

    A Valence formula- fundamental domain- why truncation height?

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  16. Vital

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  17. H

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  18. F

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  19. Superman123

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  20. O

    Calculate circle radius with segment height and perimeter

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  21. J

    I Help in calculating the orbiting height of a satellite?

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  22. K

    LaTeX How to make an adjusting height integral sign

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  23. aatari

    Projectile Motion: Height of hammer thrown downwards

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  24. L

    Does My Height Make Sense for My Genetic Makeup?

    Me: 6'0.125" Elder brother: 6'2.7" Sister: 5'9.25" Father: About as tall as my brother Grandfather (paternal side): I don't know his height due to him having passed away long before I was born, but he looked about as tall me in a picture Mother: 5'4.5" Grandmother (maternal side): Used to be...
  25. Ashley Leong

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  26. EthanVandals

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  27. Sam 1998

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  28. mamadou

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  29. Ian Baughman

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  30. Vitani11

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  31. Q

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    Homework Statement A ball is thrown upwards. Its velocity at 3/5 its max height is 16.0m/s What is its initial velocity? What is its max height? Homework Equations vf^2 = vi^2 -2g(yf-yi) define up as positive The Attempt at a Solution I ran through numerous attempts on paper but can't...
  32. R

    Kinematic equations for max height

    Homework Statement Homework EquationsThe Attempt at a Solution So (i) was easy enough and I got a time of 0.67 seconds. For (ii), since the horizontal time is 0.67 seconds this means the TOTAL time spent in air is also 0.67 seconds, so to calculate max height we split this time in half...
  33. M

    MHB Height : Normal distribution

    Hey! :o I am looking at the following: The average tallest men live in Netherlands and Montenegro mit $1.83$m=$183$cm. The average shortest men live in Indonesia mit $1.58$m=$158$cm. The standard deviation of the height in Netherlands/Montenegro is $9.7$cm and in Indonesia it is $7.8$cm...
  34. fresh_42

    Helicopters and operational height limits

    I know that helicopters cannot fly arbitrary high and 5,000 m are considered as the average limit. In a quick search I also found out, that a AS 350 B3+ has been landed on the Everest (8,848 m, 2005) and another AS 350 has (unofficially) reached 12,954 m in 2012 (official record: 12,442 m by a...
  35. G

    B Height measurement on other planets

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  36. R

    A Change in the height of a fluid vortex

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  37. J

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  38. S

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  39. N

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    Homework Statement Two blocks are free to slide along a frictionless wooden track ABC as shown below. The block of mass m1 = 5.09 kg is released from A. Protruding from its front end is the north pole of a strong magnet, repelling the north pole of an identical magnet embedded in the back end...
  40. Const@ntine

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    Homework Statement Physics for Scientists and Engineers, 8th Edition, Ex. 47 M4 A spacecraft flies from 24.000 ft to 31.000 ft, in which it enters a parabolic trajectory with a velocity of 143 m/s at an angle of 45, above the horizontal. It exits with a velocity of 143 m/s at an angle of 45...
  41. Sciencelover91

    How do you find object's velocity and height using energy?

    Homework Statement In the diagram above, a box of mass .385 kg is sliding at the right at 1.55 m/s across a frictionless surface when it falls into the hole shown. a) How fast is it moving when it passes point P? b) How fast is the box moving when it passes through the bottom of the hole the...
  42. G

    How Does Earth's Longitude Affect Free Fall Equations?

    Homework Statement Solve free fall from height h to the Earth´s surface in the place longitude φ. During solving, Consider gravitation acceleration as a constant for the whole trajectory, so g=constant. (consider a homogeneous gravity field) and variables which are including angular speed ω...
  43. G

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    Hi, I would need some help with my homework. I am lost. Solve free fall from height h to the Earth´s surface in the place with geographical width φ. During solving, omit addiction gravitational acceleration to the distance. (consider a homogeneous gravity field) and variables which are...
  44. G

    How Does Coriolis Force Affect Free Fall at the Equator?

    Hi, I would need some help with my homework. I am lost. Solve free fall from height h to the Earth´s surface in the place with geographical width φ. During solving, omit addiction gravitational acceleration to the distance. (consider a homogeneous gravity field) and variables which are...
  45. D

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    Homework Statement A pumpkin was dropped from a balcony of a skyscraper. The pumpkin happened to land on a sidewalk force sensor and the below data was collected. The pumpkin weighs 2.7kg. a) From what height was the pumpkin dropped? b) From what floor of the skyscraper was the...
  46. physicsEnthu_123

    I Why Sea Level sometimes gives an illusion being at height

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  47. G

    Finding maximum height of a string before it goes slack

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  48. S

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    Homework Statement In order for the enterprise to use its transporter it must be in synchronous orbit over the beam-down point. What heigh above the planet Mars must the enterprise be for a synchronous orbit? Homework Equations Please, can someone tell me for future reference what I should use...
  49. FallenApple

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    So Imagine a ball moving off a frictionless cliff with a velocity v to the right, at the bottom of the cliff the surface has friction. So after the collision, the x component of the velocity would be reduced, and the angular momentum would be fixed clockwise because the frictional impulse...
  50. I

    Finding the best height for windmill towers

    To approximate windspeeds we normally use the natural logarithm relation: u_air = V ln [ (z-d) / z_0 ]Where: V - Characteristic speed, constant z - height from the ground z_0 - roughness length, constant d - zero plane displacement, constant The Betz limit tells us that in theory that the max...
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