At what speed should a car enter a curve in order not to slip if the radius is 30 m and the coefficient of friction is 0.3? A mass of 2 kg sits on the edge of a rotating table at a distance of 3 m. The coefficient of friction is 0.15. What is the maximum speed the table can spin and the mass not slip off?

A road has a round hill 12.0 m in radius. What is the maximum speed at which a car can have and just stay on the road?

A mass of 0.12 kg is swinging in a circle with a radius of 2m. The mass travels around once every 1.5 s.
What is the tangential speed of the mass?
What is the centripetal acceleration?

A 40 kg child takes a ride on a Ferris wheel with a diameter of 18 m, and a rotational rate of 2 revolutions per minute.
What is the period of the motion of the Ferris wheel?
What is the tangential speed of the wheel?
What is the normal force on the child at the top of the wheel?
What is the normal force on the child at the bottom of the wheel?

all of the answers are correct.

falsification is manipulating research materials, equipment, or processes or changing or omitting data or results such that the research is not accurately represented in the research record. plagiarism is the appropriation of another person's ideas, processes, results, or words without giving appropriate credit.

explanation:

a person with a mass of 106kg has a weight of 1060n

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.