State how many significant figures are proper in the results of the following calculations:(106.7) (90) (46.210) (1.01)ANSWER:1State how many significant figures are proper in the results of the following calculations:(5.9)^2ANSWER:2State how many significant figures are proper in the results of the following calculations:(7.80 x 10^-19) (3712)ANSWER:3Tectonic 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-7Tectonic 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 alsoshould know the distance it traveled in 60.0 s (previous question). What is its speed in miles per million years?ANSWER: 34.2Assume 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: 163Assume 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: 16.6Which 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.ANSWER: AWhat 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/sANSWER: AIn 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 KMWhat is angle of the final result?ANSWER: 60.8 KMThe 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 speedANSWER: CRoll a bowling ball off the edge of a table. As it falls its horizontal componentof motionSelect one:a. Decreasesb. remains constant c. increasesANSWER: BA 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, accelerationis greatest for theSelect one:a. fired bulletb. dropped bulletc. ... is 9.8 m/s/s for each ANSWER: CA 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: 7.964 M/SServing at a speed of 216 km/h, a tennis player hits the ball at a height of 2.70 m and an angle θ below the horizontal. The service line is 11.9 m from the net, which is 0.910 m high. What is the angle θ such that the ball just crosses the net?ANSWER: 7.6
View Full Document
Unlocking...