An Alpha Particle Is a Nucleus of Helium

question 48

Multiple Choice

An alpha particle is a nucleus of helium. It has twice the charge and four times the mass of the proton. When they were very far away from each other, but headed toward directly each other, a proton and an alpha particle each had an initial speed of 0.0030c, where c is the speed of light. What is their distance of closest approach? Hint: There are two conserved quantities. Make use of both of them. (c = 3.00 × 10⁸ m/s, k = 1/4πε₀ = 8.99 × 10⁹ N ∙ m²/C², e = 1.60 × 10^-19 C, mproton = 1.67 x 10^-27 kg)

• A) 2.1 × 10^-13 m
• B) 3.3 × 10^-13 m
• C) 2.6 × 10^-13 m
• D) 2.9 × 10^-13 m

Identify the symptoms of different communicable diseases.

Match diseases with their modes of transmission.

Understand the incubation periods for various communicable diseases.

Recognize appropriate treatments for different communicable diseases.

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Definitions:

Rapport Stage

A phase in relationship development where mutual trust and understanding are established, facilitating smoother communication.

Intimacy

The sense of a close personal bond and deep emotional connection with someone, which can be physical, emotional, intellectual, or a combination of these.

Passionate

Exhibiting or characterized by intense emotions or strong feelings towards a person, activity, or cause.

Intimate

Intimate refers to a close, familiar, and usually affectionate or loving personal relationship with another person or group.