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Virus Structure and Dimension

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Questions and Answers

What is the total mass of the six spikes, given that each spike has a mass of 139 kDa?

8.34 × 10^-24 kg (correct)

8.34 × 10^-26 kg

8.34 × 10^-25 kg

8.34 × 10^-23 kg

What is the moment of inertia of the spherical virus about the axis of rotation, given that the density of water is 1000 kg/m³?

3.14 × 10^-20 kg m²

2.10 × 10^-21 kg m² (correct)

1.05 × 10^-21 kg m²

5.23 × 10^-22 kg m²

What is the angular velocity required for the virus to complete one full rotation within 10 ms?

3.14 × 10^5 rad/s

1.26 × 10^6 rad/s

1.57 × 10^5 rad/s

6.28 × 10^5 rad/s (correct)

What is the kinetic energy of the rotating virus, given that the moment of inertia about the axis of rotation is 2.10 × 10^-21 kg m²?

4.20 × 10^-19 J Signup and view all the answers

What is the angular momentum of the rotating virus, given that it has a moment of inertia of 2.10 × 10^-21 kg m² and an angular velocity of 6.28 × 10^5 rad/s?

4.20 × 10^-15 kg m²/s Signup and view all the answers

What is the radius of the spherical virus, given that its diameter is 100 nm?

50 nm Signup and view all the answers

If the total mass of the six spikes is 8.34 × 10^-22 kg, what is the mass of a single spike?

1.39 × 10^-22 kg Signup and view all the answers

What is the length of a spike in meters, given that it is 9 nm long?

9 × 10^-9 m Signup and view all the answers

If the angular velocity of the virus is 6.28 × 10^5 rad/s, what is the frequency of rotation in Hz?

10^5 Hz Signup and view all the answers

What is the total kinetic energy of the rotating virus, given that it has a moment of inertia of 2.10 × 10^-21 kg m² and an angular velocity of 6.28 × 10^5 rad/s?

2.07 × 10^-15 J Signup and view all the answers