PROJECTILE MOTION PRACTICE QUESTIONS (WITH ANSWERS) * challenge questions Q1. A golfer practising on a range with an elevated tee 4.9 m above the fairway is able to strike a ball so that it leaves the club with a horizontal velocity of 20 m s–1. (Assume the acceleration due to gravity is 9.80 m s–2‚ and the effects of air resistance may be ignored unless otherwise stated.) a b c d e How long after the ball leaves the club will it land on the fairway? What horizontal distance will the ball travel
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Republic of the Philippines DEPARTMENT OF EDUCATION Region IV-A CALABARZON DIVISION OF LAGUNA Santa Cruz Grade 7 - Integrated Science Diagnostic Test – SY 2012-2013 Direction: Choose the letter of the best answer and write it on your answer sheet. If the answer is not among the choices write e. Quarter 1 1. Which of the following is an example of a solution? a. Vinegar b. Halo-halo c. Sand in water d. Oil in water 2. Which statement describes the solute? a. It is the solid formed in solution
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A graph showing the experimental results. Figure 7: shows the relationship between loft angle and linear velocity From the Figure 7‚ there is a negative relationship between the loft angle of golf club and the linear velocity of golf ball. Which means as the loft angle increases‚ the linear velocity of ball decreases. The golf ball travels with relatively fast velocity at 9.2ms-1‚ when the loft angle is 0 degree‚ but it travels relatively slower at 3.7ms-1 when the loft angle is 80 degree. Also
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5 + 550 × 5 = 145.8 N ≈ 146 N 12 146 N 241 N 501 N 315 N 185 N Q4. At what height above earth’s surface would the gravitational acceleration be 0.980 m/s2? Answer: 2 GM g GM / R E = = ⇒h = (R E + h ) 2 10 10 10R E − R E = 1.38 × 107 7 = 1.37737 10 m A) B) C) D) E) 1.38 × 107 m 1.12 × 107 m 7.12 × 107 m 5.82 × 108 m 4.05 × 108 m Phys101 Term: 111 Final Tuesday‚ January 10‚ 2012 Code: 1 Page: 3 Q5. In Figure 4‚ what is the net gravitational force exerted on the 5.00 kg
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briefly explain the process of digestion in ruminants Asked by ANUSHA SHISHIR PA... 3 days‚ 1 hour ago Subject:Science 3 Answers The procees of digestion is completedd through four chambers 1)Rumen 2)Reticulam 3)omasumn 4)abomasum In the first two chambers‚ the rume and the reticulum‚ the food is mixed with saliva and separates into layers of solid and liquid material. Solids clump toget her to form the cud or bolus. The cud is then regurgitated and chewed to completely mix it with saliva and
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Describe the abyss and the food web of the abyss. * Immeasurably deep chasm‚ depth‚ or void. Explain the difference between the theories of Plate tectonics and Continental drift. * Continental drift: The movement‚ formation‚ or re-formation of continents described by the theory of plate tectonics. * Plate tectonics: A theory that explains the global distribution of geological phenomena such as seismicity‚ volcanism‚ continental drift‚ and mountain building in terms of the formation
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What is sound? Sound is a wave‚ a pattern—simple or complex‚ depending on the sound—of changing air pressure. Sound is produced by vibrations of objects. The vibrations push and pull on air molecules. The pushes cause a local compression of the air (increase in pressure)‚ and the pulls cause a local rarefaction of the air (decrease in pressure). Since the air molecules are already in constant motion‚ the compressions and rarefactions starting at the original source are rapidly transmitted through
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Phonetics Symbols English Speech Sounds: Vowel Sounds Front Vowels 1. / i: / ي - it is found in the words like; eat‚ tea‚ seen (long high front spread vowel) 2. / ɪ / - it is found in the words like; bit‚ pin‚ silly (short high front spread vowel) 3. /e/ - it is found in the words like; bet‚ tent‚ head (short mid front spread vowel). 4. / æ / - cat‚ fat‚ dad (short low front spread vowel). Central Vowels 5. /ɜ:/ ۀ - (Position: Central‚ Lips: Neutral‚ Long vowel); this may also be shown
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sound waves Sound is a series of compression waves that moves through air or other materials. These sound waves are created by the vibration of an object‚ like a radio loudspeaker. The waves are detected when they cause a detector to vibrate. Your eardrum vibrates from sound waves to allow you to sense them. Sound has the standard characteristics of any waveform. Sound is a waveform that travels through matter. Although it is commonly in air‚ sound will rapidly travel
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Dependent Variable: Velocity of wave (wave velocity) Constants: Plastic storage container Piece of wood Height from which the wood is dropped and the way it is held before each time it is dropped Gravel-like substance that creates an uneven bottom—this includes both its physical material and the amount of it that is placed on the bottom of the tank during each treatment Time at which the stopwatch is started after the wooden block is dropped and a wave is created Problem: It is a known
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