that the velocity going out of the control volume is equal to the velocity coming in. Additionally‚ the elevation difference within the control is assumed to be negligible. The vertical force caused by the jet is balanced by the mass placed on the weight pan. (2) The initial velocity of the jet‚ v0‚ is : (3) From Bernoulli’s equation‚ the jet velocity‚ v‚ in
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CHAPTER 1: Introduction‚ Measurement‚ Estimating Answers to Questions 1. (a) Fundamental standards should be accessible‚ invariable‚ indestructible‚ and reproducible. A particular person’s foot would not be very accessible‚ since the person could not be at more than one place at a time. The standard would be somewhat invariable if the person were an adult‚ but even then‚ due to swelling or injury‚ the length of the standard foot could change. The standard would not be indestructible – the foot would
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10 MIXING AND AGITATION gitation is a means whereby mixing of phases can be accomplished and by which mass and heat transfer can be enhanced between phases or with external surfaces. In its most general sense‚ the process of mixing is concerned with all combinations of phases of which the most frequently occurring ones are A 7. gases with gases. 2. gases into liquids: dispersion. 3. gases with granular solids: fluidization‚ pneumatic conveying‚ drying. 4. liquids into gases: spraying and atomization
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Theory The first experiment focused on the concept of errors and uncertainties that are obtained during measurements. For an experiment to be successful‚ especially those that involve measurements‚ the number of significant figures must be known. Significant figures are the digits required to express a measured quantity and thus reflect the accuracy of the measurement. Uncertainty is defined as the smallest increment that can be measured and is defined by the instrument used. An error is defined
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between B and C in metres per second. Show clearly how you work out your answer. (3) 3 A cyclist is travelling along a straight road. The graph shows how the velocity changes with time for part of the journey. [pic] a Explain how is acceleration found from a velocity–time graph. (1) b Copy and complete the following sentences using the list of words and phrases below. Each one can be used once‚ more than once or not at all. is
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ME 2307 – DYNAMICS LABORATORY Class : V Semester Mechanical Sections : A & B LIST OF EXPERIMENTS 1. Free Transverse Vibration – I – Determination of Natural Frequency 2. Cam Analysis – Cam Profile and Jump-speed Characteristics 3. Free Transverse Vibration – II – Determination of Natural Frequency 4. Free Vibration of Spring Mass System – Determination of Natural Frequency 5. Compound Pendulum – Determination of Radius of Gyration and Moment of Inertia 6. Bifilar Suspension – Determination
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Chug 1-5 1. Calculate the resultant velocity of an airplane that normally flies at 200 km/h if it encounters a 50 km/h tailwind. If it encounters a 50 km/h headwind? 200+50=250km/h 200-50=150km/h 2. Calculate the resultant of the pair of velocities 100km/h north and 75 km/h south. Calculate the resultant if both of the velocities are directed north. 100+75=175km/h 100-75=25km/h 3. Calculate the magnitude of the resultant of a pair of 100 km/h velocity vectors that are at right angles to
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Lab {4} Free Fall Motion Abstract Within this laboratory students used a Macintosh computer‚ scientificwork interface‚ and photogate to measure the acceleration of gravity‚ g‚ in a free-fall experiment. Using a “picket fence” dropped through a photo gate with disregard for air resistance; students calculated the results from the charted data and compared it with the accepted value of 9.8 m/s2 discussing any variations and their
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21. Assessment CRCT Preparation Multiple Choice USE THE DIAGRAM BELOW TO ANSWER QUESTIONS 1–3. |Time (s) |Distance (m) | |0 |0 | |1 |96 | |2 |192 | |3 |288 | |4
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