TAMU PHYS 1401  UNIT TEST #1 (6 pages)
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UNIT TEST #1
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 6
 School:
 Texas A&M University
 Course:
 Phys 1401  COLLEGE PHYSICS 1
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State how many significant figures are proper in the results of the following calculations 106 7 90 46 210 1 01 ANSWER 1 State how many significant figures are proper in the results of the following calculations 5 9 2 ANSWER 2 State how many significant figures are proper in the results of the following calculations 7 80 x 10 19 3712 ANSWER 3 Tectonic plates are large segments of the earth s crust that move slowly Suppose one such plate has an average speed of 5 50 cm per year What distance m does it move in 60 0 seconds at this speed Put your answer in scientific notation in the following way 2 07e 12 no units ANSWER 1 05e 7 Tectonic plates are large segments of the earth s crust that move slowly Suppose one such plate has an average speed of 5 50 cm per year You also should know the distance it traveled in 60 0 s previous question What is its speed in miles per million years ANSWER 34 2 Assume that an MX missile goes from rest to a suborbital velocity of 6 50 km s in 40 0 s What is its average acceleration in m s 2 ANSWER 163 Assume that an MX missile goes from rest to a suborbital velocity of 6 50 km s in 40 0 s What is its average acceleration in m s 2 What is its average accelerationin multiples of g ANSWER 16 6 Which of the following is a scientific statement Select one a The moon is made of green cheese Testable b There are things we will need know about c Matter is filled with undetectable particles d There are parts of the universe that will never be found by man ANSWER A What is the acceleration of a car that maintains a constant velocity of 100 km h for 10 seconds Select one a 0 b 10 km h s c 10 m s s d 1000 km h s ANSWER A In an attempt to escape his island Gilligan builds a fact and sets to sea The wind shifts a great deal during the day and he is blown along the following straight lines 2 50 km 450 north of west then 4 70 km 600 south of east then 5 10 km straight east then 7 20 km 55o south of west and finally 2 80 km 100 north of east What is his final position relative to the island ANSWER 8 8 KM What is angle of the final result ANSWER 60 8 KM The gain in speed each second for a freely falling object is about Select one a 0 b 5 m s c 10 m s d 20 m s e Depends on the initial speed ANSWER C Roll a bowling ball off the edge of a table As it falls its horizontal component of motion Select one a Decreases b remains constant c increases ANSWER
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