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TAMU PHYS 1401 - Module 1 unit test

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Module #1 – Unit TestPhysics 1401 Question 1State how many significant figures are proper in the results of the following calculations:(106.7) (90) (46.210) (1.01)Answer:1Question 2State how many significant figures are proper in the results of the following calculations:(5.9)^2Answer:2Question 3State how many significant figures are proper in the results of the following calculations:(7.80 x 10^-19) (3712)Answer:3Question 4Tectonic 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:2.9e-11Question 5Tectonic 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:34.18Question 6Assume 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:162.5Question 7Assume 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 acceleration in multiples of g?Answer:16.58Question 8In 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; then4.70 km 600 south of east; then5.10 km straight east; then7.20 km 55o south of west; and finally2.80 km 100 north of east.What is his final position relative to the island?Answer: 8.8 kmQuestion 9In 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; then4.70 km 600 south of east; then5.10 km straight east; then7.20 km 55o south of west; and finally2.80 km 100 north of east.What is angle of the final result? Answer: 60.80 south of eastQuestion 10Which of the following is a scientific statement.Select one:a. The moon is made of green cheese. Testableb. There are things we will need know about.c. Matter is filled with undetectable particlesd. There are parts of the universe that will never be found by man.Question 11What 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/sc. 10 m/s/sd. 1000 km/h/sQuestion 12The gain in speed each second for a freely-falling object is about Select one:a. 0b. 5 m/sc. 10 m/s d. 20 m/se. Depends on the initial speedQuestion 13Roll a bowling ball off the edge of a table. As it falls its horizontal component of motionSelect one:a. Decreasesb. remains constant c. increasesQuestion 14A bullet is dropped from the top of the Willis Tower in Chicago while another bullet is fired downward from the same location. Neglecting air resistance, acceleration is greatest for theSelect one:a. fired bulletb. dropped bulletc. ... is 9.8 m/s/s for each Question 15A ship sets sail from Rotterdam, The Netherlands, heading due north at 7.00 m/s relative to the water. The local ocean current is 1.50 m/s in a direction 40° north of east. What is the velocity of the ship relative to the earth (m/s)?Answer:8.05Question 16Serving at a speed of 216 km/h, a tennis player hits the ball at a height of 2.70 m andan angle below the horizontal. The service line is 11.9 m from the net, which is θ0.910 m high. What is the angle such that the ball just crosses the


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TAMU PHYS 1401 - Module 1 unit test

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