An object moving at a constant speed in a circular path is constrained to that path due

Question

An object moving at a constant speed in a circular path is constrained to that path due

to:

A. an inwardly directed centripetal force.

B. an outwardly directed centrifugal force.

C. a force that is directed tangent to the circular path.

D. No force acts on objects that move in circular paths because the speed is constant.

Under a set of simplifying assumptions, Newtonian Physics is a special simplified case of:

A. relativity.

B. quantum mechanics.

C. both of the above choices.

D. none of the above choices.

Which element has an isotope with 43 neutrons and a mass number of 76?

A. Sulfur

B. Arsenic

C. Technetium

D. Osmium

E. Uranium

Thank you!

Science