Physics equations/06-Uniform Circular Motion and Gravitation/Q:friction/Testbank

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a06uniformCircMotGravitation_friction_v1
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.15 rad/sec. How many minutes does it take to complete 8.5 revolutions? } -a) 4.49 minutes. -b) 5.16 minutes. +c) 5.93 minutes. -d) 6.82 minutes. -e) 7.85 minutes.

2
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.174 rad/sec. How many minutes does it take to complete 8.5 revolutions? } -a) 3.87 minutes. -b) 4.45 minutes. +c) 5.12 minutes. -d) 5.88 minutes. -e) 6.77 minutes.

3
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.192 rad/sec. How many minutes does it take to complete 12.5 revolutions? } -a) 5.93 minutes. +b) 6.82 minutes. -c) 7.84 minutes. -d) 9.02 minutes. -e) 10.37 minutes.

4
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.188 rad/sec. How many minutes does it take to complete 6.5 revolutions? } -a) 2.74 minutes. -b) 3.15 minutes. +c) 3.62 minutes. -d) 4.16 minutes. -e) 4.79 minutes.

5
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.168 rad/sec. How many minutes does it take to complete 6.5 revolutions? } -a) 2.66 minutes. -b) 3.06 minutes. -c) 3.52 minutes. +d) 4.05 minutes. -e) 4.66 minutes.

6
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.174 rad/sec. How many minutes does it take to complete 12.5 revolutions? } -a) 5.69 minutes. -b) 6.54 minutes. +c) 7.52 minutes. -d) 8.65 minutes. -e) 9.95 minutes.

7
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.192 rad/sec. How many minutes does it take to complete 8.5 revolutions? } -a) 3.05 minutes. -b) 3.51 minutes. -c) 4.03 minutes. +d) 4.64 minutes. -e) 5.33 minutes.

8
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.182 rad/sec. How many minutes does it take to complete 12.5 revolutions? } -a) 5.44 minutes. -b) 6.25 minutes. +c) 7.19 minutes. -d) 8.27 minutes. -e) 9.51 minutes.

9
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.15 rad/sec. How many minutes does it take to complete 9.5 revolutions? } -a) 5.77 minutes. +b) 6.63 minutes. -c) 7.63 minutes. -d) 8.77 minutes. -e) 10.09 minutes.

10
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.16 rad/sec. How many minutes does it take to complete 9.5 revolutions? } -a) 5.41 minutes. +b) 6.22 minutes. -c) 7.15 minutes. -d) 8.22 minutes. -e) 9.46 minutes.

11
{A merry-go-round has an angular frequency, $$\omega$$, equal to 0.198 rad/sec. How many minutes does it take to complete 10.5 revolutions? } -a) 4.83 minutes. +b) 5.55 minutes. -c) 6.39 minutes. -d) 7.34 minutes. -e) 8.45 minutes.

a06uniformCircMotGravitation_friction_v1
{A merry-go round has a period of 0.22 minutes. What is the centripetal force on a 81.2 kg person who is standing 1.64 meters from the center?} -a) 26.2 newtons. +b) 30.2 newtons. -c) 34.7 newtons. -d) 39.9 newtons. -e) 45.9 newtons.

2
{A merry-go round has a period of 0.34 minutes. What is the centripetal force on a 89.6 kg person who is standing 2.25 meters from the center?} -a) 16.6 newtons. +b) 19.1 newtons. -c) 22 newtons. -d) 25.3 newtons. -e) 29.1 newtons.

3
{A merry-go round has a period of 0.38 minutes. What is the centripetal force on a 77.6 kg person who is standing 1.59 meters from the center?} +a) 9.4 newtons. -b) 10.8 newtons. -c) 12.4 newtons. -d) 14.3 newtons. -e) 16.4 newtons.

4
{A merry-go round has a period of 0.26 minutes. What is the centripetal force on a 51.9 kg person who is standing 1.26 meters from the center?} -a) 6.1 newtons. -b) 7 newtons. -c) 8 newtons. -d) 9.2 newtons. +e) 10.6 newtons.

5
{A merry-go round has a period of 0.32 minutes. What is the centripetal force on a 88.1 kg person who is standing 1.73 meters from the center?} +a) 16.3 newtons. -b) 18.8 newtons. -c) 21.6 newtons. -d) 24.8 newtons. -e) 28.5 newtons.

6
{A merry-go round has a period of 0.34 minutes. What is the centripetal force on a 51.4 kg person who is standing 3.09 meters from the center?} -a) 8.6 newtons. -b) 9.9 newtons. -c) 11.4 newtons. -d) 13.1 newtons. +e) 15.1 newtons.

7
{A merry-go round has a period of 0.38 minutes. What is the centripetal force on a 64.8 kg person who is standing 1.76 meters from the center?} -a) 5 newtons. -b) 5.7 newtons. -c) 6.5 newtons. -d) 7.5 newtons. +e) 8.7 newtons.

8
{A merry-go round has a period of 0.26 minutes. What is the centripetal force on a 53.3 kg person who is standing 1.35 meters from the center?} -a) 7.7 newtons. -b) 8.8 newtons. -c) 10.2 newtons. +d) 11.7 newtons. -e) 13.4 newtons.

9
{A merry-go round has a period of 0.22 minutes. What is the centripetal force on a 96.9 kg person who is standing 1.95 meters from the center?} -a) 32.4 newtons. -b) 37.2 newtons. +c) 42.8 newtons. -d) 49.2 newtons. -e) 56.6 newtons.

10
{A merry-go round has a period of 0.36 minutes. What is the centripetal force on a 73.9 kg person who is standing 2.94 meters from the center?} -a) 12.1 newtons. -b) 13.9 newtons. -c) 16 newtons. +d) 18.4 newtons. -e) 21.1 newtons.

11
{A merry-go round has a period of 0.36 minutes. What is the centripetal force on a 67.1 kg person who is standing 1.19 meters from the center?} -a) 4.4 newtons. -b) 5.1 newtons. -c) 5.9 newtons. +d) 6.8 newtons. -e) 7.8 newtons.

a06uniformCircMotGravitation_friction_v1
{A merry-go round has a period of 0.22 minutes. What is the minimum coefficient of static friction that would allow a 81.2 kg person to stand1.64 meters from the center, without grabbing something?} -a) 0.033 +b) 0.038 -c) 0.044 -d) 0.05 -e) 0.058

2
{A merry-go round has a period of 0.34 minutes. What is the minimum coefficient of static friction that would allow a 89.6 kg person to stand2.25 meters from the center, without grabbing something?} -a) 0.019 +b) 0.022 -c) 0.025 -d) 0.029 -e) 0.033

3
{A merry-go round has a period of 0.38 minutes. What is the minimum coefficient of static friction that would allow a 77.6 kg person to stand1.59 meters from the center, without grabbing something?} -a) 0.008 -b) 0.009 -c) 0.011 +d) 0.012 -e) 0.014

4
{A merry-go round has a period of 0.26 minutes. What is the minimum coefficient of static friction that would allow a 51.9 kg person to stand1.26 meters from the center, without grabbing something?} +a) 0.021 -b) 0.024 -c) 0.028 -d) 0.032 -e) 0.036

5
{A merry-go round has a period of 0.32 minutes. What is the minimum coefficient of static friction that would allow a 88.1 kg person to stand1.73 meters from the center, without grabbing something?} +a) 0.019 -b) 0.022 -c) 0.025 -d) 0.029 -e) 0.033

6
{A merry-go round has a period of 0.34 minutes. What is the minimum coefficient of static friction that would allow a 51.4 kg person to stand3.09 meters from the center, without grabbing something?} -a) 0.017 -b) 0.02 -c) 0.023 -d) 0.026 +e) 0.03

7
{A merry-go round has a period of 0.38 minutes. What is the minimum coefficient of static friction that would allow a 64.8 kg person to stand1.76 meters from the center, without grabbing something?} -a) 0.008 -b) 0.009 -c) 0.01 -d) 0.012 +e) 0.014

8
{A merry-go round has a period of 0.26 minutes. What is the minimum coefficient of static friction that would allow a 53.3 kg person to stand1.35 meters from the center, without grabbing something?} -a) 0.019 +b) 0.022 -c) 0.026 -d) 0.03 -e) 0.034

9
{A merry-go round has a period of 0.22 minutes. What is the minimum coefficient of static friction that would allow a 96.9 kg person to stand1.95 meters from the center, without grabbing something?} -a) 0.03 -b) 0.034 -c) 0.039 +d) 0.045 -e) 0.052

10
{A merry-go round has a period of 0.36 minutes. What is the minimum coefficient of static friction that would allow a 73.9 kg person to stand2.94 meters from the center, without grabbing something?} -a) 0.017 -b) 0.019 -c) 0.022 +d) 0.025 -e) 0.029

11
{A merry-go round has a period of 0.36 minutes. What is the minimum coefficient of static friction that would allow a 67.1 kg person to stand1.19 meters from the center, without grabbing something?} -a) 0.006 -b) 0.007 -c) 0.008 -d) 0.009 +e) 0.01

a06uniformCircMotGravitation_friction_v1
{What is the gravitational acceleration on a plant that is 2.37 times more massive than Earth, and a radius that is 1.52 times greater than Earths?} +a) 10.1 m/s2 -b) 11.6 m/s2 -c) 13.3 m/s2 -d) 15.3 m/s2 -e) 17.6 m/s2

2
{What is the gravitational acceleration on a plant that is 2.67 times more massive than Earth, and a radius that is 1.74 times greater than Earths?} -a) 5.7 m/s2 -b) 6.5 m/s2 -c) 7.5 m/s2 +d) 8.6 m/s2 -e) 9.9 m/s2

3
{What is the gravitational acceleration on a plant that is 2.33 times more massive than Earth, and a radius that is 1.49 times greater than Earths?} +a) 10.3 m/s2 -b) 11.8 m/s2 -c) 13.6 m/s2 -d) 15.6 m/s2 -e) 18 m/s2

4
{What is the gravitational acceleration on a plant that is 2.05 times more massive than Earth, and a radius that is 1.56 times greater than Earths?} -a) 4.7 m/s2 -b) 5.4 m/s2 -c) 6.2 m/s2 -d) 7.2 m/s2 +e) 8.3 m/s2

5
{What is the gravitational acceleration on a plant that is 1.83 times more massive than Earth, and a radius that is 1.38 times greater than Earths?} -a) 8.2 m/s2 +b) 9.4 m/s2 -c) 10.8 m/s2 -d) 12.5 m/s2 -e) 14.3 m/s2

6
{What is the gravitational acceleration on a plant that is 2.59 times more massive than Earth, and a radius that is 1.75 times greater than Earths?} +a) 8.3 m/s2 -b) 9.5 m/s2 -c) 11 m/s2 -d) 12.6 m/s2 -e) 14.5 m/s2

7
{What is the gravitational acceleration on a plant that is 1.34 times more massive than Earth, and a radius that is 1.45 times greater than Earths?} -a) 4.7 m/s2 -b) 5.4 m/s2 +c) 6.2 m/s2 -d) 7.2 m/s2 -e) 8.3 m/s2

8
{What is the gravitational acceleration on a plant that is 1.96 times more massive than Earth, and a radius that is 1.62 times greater than Earths?} -a) 4.8 m/s2 -b) 5.5 m/s2 -c) 6.4 m/s2 +d) 7.3 m/s2 -e) 8.4 m/s2

9
{What is the gravitational acceleration on a plant that is 2.13 times more massive than Earth, and a radius that is 1.31 times greater than Earths?} -a) 8 m/s2 -b) 9.2 m/s2 -c) 10.6 m/s2 +d) 12.2 m/s2 -e) 14 m/s2

10
{What is the gravitational acceleration on a plant that is 1.34 times more massive than Earth, and a radius that is 1.88 times greater than Earths?} -a) 2.4 m/s2 -b) 2.8 m/s2 -c) 3.2 m/s2 +d) 3.7 m/s2 -e) 4.3 m/s2

11
{What is the gravitational acceleration on a plant that is 2.21 times more massive than Earth, and a radius that is 1.74 times greater than Earths?} -a) 4.1 m/s2 -b) 4.7 m/s2 -c) 5.4 m/s2 -d) 6.2 m/s2 +e) 7.2 m/s2

a06uniformCircMotGravitation_friction_v1
{What is the gravitational acceleration on a plant that is 2.89 times more dense than Earth, and a radius that is 2.38 times greater than Earth's?} -a) 58.6 m/s2 +b) 67.4 m/s2 -c) 77.5 m/s2 -d) 89.1 m/s2 -e) 102.5 m/s2

2
{What is the gravitational acceleration on a plant that is 1.95 times more dense than Earth, and a radius that is 2.12 times greater than Earth's?} +a) 40.5 m/s2 -b) 46.6 m/s2 -c) 53.6 m/s2 -d) 61.6 m/s2 -e) 70.9 m/s2

3
{What is the gravitational acceleration on a plant that is 1.92 times more dense than Earth, and a radius that is 1.69 times greater than Earth's?} -a) 24 m/s2 -b) 27.7 m/s2 +c) 31.8 m/s2 -d) 36.6 m/s2 -e) 42.1 m/s2

4
{What is the gravitational acceleration on a plant that is 1.94 times more dense than Earth, and a radius that is 2.35 times greater than Earth's?} -a) 38.9 m/s2 +b) 44.7 m/s2 -c) 51.4 m/s2 -d) 59.1 m/s2 -e) 67.9 m/s2

5
{What is the gravitational acceleration on a plant that is 1.29 times more dense than Earth, and a radius that is 1.53 times greater than Earth's?} -a) 12.7 m/s2 -b) 14.6 m/s2 -c) 16.8 m/s2 +d) 19.3 m/s2 -e) 22.2 m/s2

6
{What is the gravitational acceleration on a plant that is 2.98 times more dense than Earth, and a radius that is 1.81 times greater than Earth's?} -a) 30.2 m/s2 -b) 34.8 m/s2 -c) 40 m/s2 -d) 46 m/s2 +e) 52.9 m/s2

7
{What is the gravitational acceleration on a plant that is 1.23 times more dense than Earth, and a radius that is 2.98 times greater than Earth's?} +a) 35.9 m/s2 -b) 41.3 m/s2 -c) 47.5 m/s2 -d) 54.6 m/s2 -e) 62.8 m/s2

8
{What is the gravitational acceleration on a plant that is 1.73 times more dense than Earth, and a radius that is 2.44 times greater than Earth's?} +a) 41.4 m/s2 -b) 47.6 m/s2 -c) 54.7 m/s2 -d) 62.9 m/s2 -e) 72.4 m/s2

9
{What is the gravitational acceleration on a plant that is 1.23 times more dense than Earth, and a radius that is 1.83 times greater than Earth's?} -a) 19.2 m/s2 +b) 22.1 m/s2 -c) 25.4 m/s2 -d) 29.2 m/s2 -e) 33.5 m/s2

10
{What is the gravitational acceleration on a plant that is 1.47 times more dense than Earth, and a radius that is 1.42 times greater than Earth's?} +a) 20.5 m/s2 -b) 23.5 m/s2 -c) 27.1 m/s2 -d) 31.1 m/s2 -e) 35.8 m/s2

11
{What is the gravitational acceleration on a plant that is 2.01 times more dense than Earth, and a radius that is 1.54 times greater than Earth's?} -a) 26.4 m/s2 +b) 30.3 m/s2 -c) 34.9 m/s2 -d) 40.1 m/s2 -e) 46.1 m/s2