An object travels in a circular path at speed v and experiences a centripetal acceleration Ac, What will be the object's new centripetal acceleration, if its speed is increased to 2.02 A. 2.0 ac
B. 4.0 ac
C. 1.4 ac
D. 0.71 ac

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the body's situation won't change the forces are equal opposit and on the same body

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it