Three identical cylindrical disks have a common axis. Initi…
Three identical cylindrical disks have a common axis. Initially one of the disks is spinning. When the three disks are brought into contact, they stick together. Which of the following is/are true? (Choose all that are correct)
Read DetailsA police car is chasing another car that was used in a bank…
A police car is chasing another car that was used in a bank robbery. The police car has a mass that is 1.2 times the mass of the car it is chasing. The police car has a speed of 40.0 m/s, and the other car is traveling at 35.0 m/s. The police car rams the back of the robber’s car. Afterward, the police car is going 35.0 m/s. How fast would the robber’s car be going after the collision?
Read DetailsTwo kids are at a swimming pool. They both start from rest,…
Two kids are at a swimming pool. They both start from rest, one dropping from the high diving board, and the other going down the slide. If the slide starts at the same height as the diving board, which kid is going faster when they hit the water? Ignore friction and air resistance.
Read DetailsProfessor Lewin has a bowling ball (m = 7.0 kg) attached to…
Professor Lewin has a bowling ball (m = 7.0 kg) attached to the end of a 4.0 m long cord. The other end is affixed to the ceiling, allowing the ball to swing freely at the end of the cord. He pulls back the bowling ball so that the cord makes an angle of 60° with the vertical and drops the ball from rest. How fast is the ball going when the cord is vertical, at the bottom of the arc? Ignore air resistance and friction.
Read DetailsIn the blank spaces below, write the output produced by each…
In the blank spaces below, write the output produced by each line of the following program, as it would appear on the console. def claim(hear, good, song): print(hear, “plus”, song, “is greater than”, good) return hear + song def main(): hear = 4 song = 5 good = 12 walk = 90 talk = 19 feel = 23 good = claim(feel, song, feel) again = claim(good, hear, song) claim(talk, 14, feel) talk = claim(talk, again, walk) main() Line 1: [l1] Line 2: [l2] Line 3: [l3] Line 4: [l4]
Read DetailsIn the blank spaces below, write the output produced by each…
In the blank spaces below, write the output produced by each line of the following program, as it would appear on the console. def double_up(ten, two, twenty): ten = ten // 2 print(two, “is half of”, twenty, “plus”, ten); return ten + two def main(): ten = 40 fourty = 30 thirty = 20 fifty = 10 twenty = 50 sixty = double_up(fifty, ten, thirty) fifty = double_up(twenty, 70, sixty) double_up(ten, fourty, fifty) fifty = 10 ten += double_up(sixty, sixty * 2, ten) double_up(fifty, 20, ten) main() Line 1: [l1] Line 2: [l2] Line 3: [l3] Line 4: [l4] Line 5: [l5]
Read DetailsIn the blank spaces below, write the output produced by each…
In the blank spaces below, write the output produced by each line of the following program, as it would appear on the console. def equation(one, four, two): two = two + “two” print(four, “is half of”, two, “plus”, one) return two + “two” def main(): one = “four” two = “two” three = “one” four = “mouse” ten = “cat” five = equation(one, two, three) one = equation(one, “rabbit”, three) equation(one, four, five) ten += equation(five + “++”, four, five) equation(ten, “kitten”, four) main() Line 1: [l1] Line 2: [l2] Line 3: [l3] Line 4: [l4] Line 5: [l5]
Read DetailsIn the blank spaces below, write the output produced by each…
In the blank spaces below, write the output produced by each line of the following program, as it would appear on the console. def claim(hear, good, song): print(hear, “plus”, song, “is greater than”, good) return hear + song def main(): hear = 4 song = 5 good = 12 walk = 90 talk = 19 feel = 23 good = claim(feel, song, feel) again = claim(good, hear, song) claim(talk, 14, feel) talk = claim(talk, again, walk) main() Line 1: [l1] Line 2: [l2] Line 3: [l3] Line 4: [l4]
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