The Speed of a Particle Moving in a Circle 2

question 39

Multiple Choice

The speed of a particle moving in a circle 2.0 m in radius increases at the constant rate of 4.4 m/s². At an instant when the magnitude of the total acceleration is 6.0 m/s², what is the speed of the particle?

• A) 3.9 m/s
• B) 2.9 m/s
• C) 3.5 m/s
• D) 3.0 m/s
• E) 1.4 m/s

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Definitions:

Cell-mediated Immunity

A form of immunity that involves the activation of T-cells and other immune cells to defend against pathogens, independent of antibody production.

Antibody-mediated Immunity

A part of the immune response in which B cells produce antibodies after recognizing antigens, leading to the neutralization or destruction of the foreign particles.

T Cells

A type of lymphocyte that plays a central role in cell-mediated immunity, differentiating in the thymus.

B Cells

A type of white blood cell involved in the immune response by producing antibodies to neutralize pathogens.