find: (a) The initial speed of the grasshopper (b) The height of the cliff. [pic] Identify: From the figure in the text‚ we can read off the maximum height and maximum horizontal distance reached by the grasshopper. Knowing its acceleration is g downward‚ we can find its initial speed and the height of the cliff (the target
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indicated on the chart above. Therefore‚ the phenotypic ratio of F2 offspring is 9 horizontal stripes with triangle-hair shape to 3 horizontal stripes with rectangle-hair shape to 3 vertical stripes with triangle-hair shape to 1 vertical stripes with rectangle-hair shape. Provided that there are 40 F2 offspring‚ we expect that there are 9/16 x 40=22.5 horizontal stripes with triangle-hair shape to 3/16 x 40=7.5 horizontal stripes with rectangle-hair shape to 3/16 x 40=7.5 vertical stripes with triangle-hair
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theodolite is an instrument which is capable of measuring angles to the nearest whole second [Figure 4.1]. This can be done for both vertical and horizontal angles. Vertical angles are required for the calculation of elevation of points for example the reduction of slope distance to the horizontal. Figure 4.1: Atheodolite Source: SouthGeosystems Horizontal angles are required to obtain the relative direction to a survey control station or points of detail. Basically there are two types of modern
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PLASTIC COLLAPSE OF A PORTAL FRAME AIM The purpose of this experiment is to find out how a portal frame deflects when horizontal and vertical external loads are applied to it. This experiment will then help in the comparison between what is theoretically expected to happen to the portal frame and what is actually recorded to happen during the experiment. The portal frame in this experiment is part of a statically indeterminate structure. BACKGROUND INFORMATION For any material‚ there
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ASSORTED REVIEW NOTES IN BUILDING MATERIALS Cripple stud 1. In a building frame‚ a structural element that is shorter than usual‚ as a Cogged joint stud above a door opening or below a window sill is called 2. A carpentry joint by two uneven timbers‚ each of which is notched at Bull-nosed step the place where they cross 3. A step usually lowest in a flight‚ having one or both ends rounded to a Gravity wall Quoin semi-circle and projecting beyond the face of the stair string/s
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stockroom worker pushes a box with mass 11.2 kg on a horizontal surface with constant speed of 3.50 m/s. The coefficient of kinetic friction between the box and the surface is 0.20. a. What horizontal force must be applied by the worker to maintain the motion? b. If the force calculated in part a is removed‚ how far does the box slide before coming to rest? 3. 4. In physics lab experiment‚ a 6.00-kgbox is pushed across a flat table by a horizontal force F. a. If the box is moving at a constant speed
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*monitor History of Monitor A long time has passed since the first computer monitors were introduced. Way back when these units were first introduced‚ they were available in monochrome only and most of the computer monitors used to have a bright green display on a jet black background. These were known as monochrome monitors and they did not use to have high quality displays. The displays that we see on the monitors are caused by the electrons directed on a phosphor coating on the screen by the
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m/s2 9. A ball is thrown vertically upward at 20 m/s from a height of 30 m above the ground. What is its speed on impact with the ground below? A. 14 m/s B. 24 m/s C. 31 m/s D. 44 m/s 10. Which of the following graphs best illustrates the horizontal displacement of a projectile as a function of time? Ignore friction. 11. What is the range of the projectile launched horizontally at 25 m/s from the 18 m-high cliff edge as shown in the diagram below? A. 18 m B. 30 m C. 46 m D. 48 m
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table that is high and lands from the base of the table. a. How much time passed between the moment the car left the table and the moment it hit the floor? b. What was the horizontal velocity of the car when it hit the ground? 3. A hawk in level flight above the ground drops the fish it caught. If the hawk’s horizontal speed is ‚ how far ahead of the drop point will the fish land? 4. A pistol is fired horizontally toward a target away‚ but at the same height. The bullet’s velocity is . How
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wells.Fracking as a method for oil and gas extraction is also more economically viable than conventional or horizontal drilling. The last reason is that the process has driven down gas prices and offered gas security to both the United States and Canada for about 100 years. This is why we should keep fracking.
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