# UNIT_5_CST_Apex_Learning_-_Courses - Copy.pdf - Apex...

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2/20/2021 Apex Learning - Courses 1/75 Test (CST): Computer-Scored Unit Test Total Questions: 25 Question 1 Depth Of Knowledge: None Bloom Level: Application Category: Calculating Momentum 1a ) 2543926 A dog of mass 18 kg runs at a speed of 4 m/s. What is the momentum of the dog? # Choice Feedback A. 4.5 kg•m/s B. 18 kg•m/s C. 36 kg•m/s D. 72 kg•m/s Correct! SHOW MORE Incorrect Feedback The correct answer is: 72 kg•m/s.
2/20/2021 Apex Learning - Courses 2/75 1b ) 2543927 A rat of mass 0.25 kg runs at a speed of 1.25 m/s. What is the momentum of the rat? # Choice Feedback A. 0.313 kg•m/s Correct! B. 0.875 kg•m/s C. 1.0 kg•m/s D. 5.0 kg•m/s SHOW MORE Incorrect Feedback The correct answer is: 0.313 kg•m/s.
2/20/2021 Apex Learning - Courses 3/75 1c ) 2543928 A cat of mass 1 kg runs at a speed of 2.5 m/s. What is the momentum of the cat? # Choice Feedback A. 0.4 kg•m/s B. 1.0 kg•m/s C. 2.5 kg•m/s Correct! D. 5.0 kg•m/s Question 2 Depth Of Knowledge: None Bloom Level: Application Category: Calculating Momentum SHOW MORE Incorrect Feedback The correct answer is: 2.5 kg•m/s.
2/20/2021 Apex Learning - Courses 4/75 2a ) 2543929 A skydiver has a mass of 61 kg. At what speed will she have a momentum of 3300 kg•m/s? # Choice Feedback A. 42.3 m/s B. 54.1 m/s Correct! C. 61.9 m/s D. 79.5 m/s SHOW MORE Incorrect Feedback The correct answer is: 54.1 m/s.
2/20/2021 Apex Learning - Courses 5/75 2b ) 2543930 A skydiver has a mass of 140 kg. At what speed will she have a momentum of 10,000 kg•m/s? # Choice Feedback A. 28.3 m/s B. 31.2 m/s C. 55.3 m/s D. 71.4 m/s Correct! SHOW MORE Incorrect Feedback The correct answer is: 71.4 m/s.
2/20/2021 Apex Learning - Courses 6/75 2c ) 2543931 A skydiver has a mass of 110 kg. At what speed will she have a momentum of 1000 kg•m/s? # Choice Feedback A. 2.1 m/s B. 9.1 m/s Correct! C. 14.3 m/s D. 28.6 m/s Question 3 Depth Of Knowledge: None Bloom Level: Application Category: Momentum and Impulse SHOW MORE Incorrect Feedback The correct answer is: 9.1 m/s.
2/20/2021 Apex Learning - Courses 7/75 3a ) 2543932 A bobsled has a momentum of 4000 kg•m/s to the south. Friction on the track reduces its momentum to 2500 kg•m/s to the south. What impulse is applied to the bobsled by the friction? # Choice Feedback A. 1500 kg•m/s north Correct! B. 1500 kg•m/s south C. 6500 kg•m/s north D. 6500 kg•m/s south SHOW MORE Incorrect Feedback The correct answer is: 1500 kg•m/s north.
2/20/2021 Apex Learning - Courses 8/75 3b ) 2543933 A bobsled has a momentum of 3000 kg•m/s to the east. After the rider gives it a push, its momentum increases to 5500 kg•m/s to the east. What impulse is applied to the bobsled? # Choice Feedback A. 2500 kg•m/s west B. 2500 kg•m/s east Correct!
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