A particle vibrates according to the equation x= 20cos(16t) where x is in centimeters. determine the amplitude and frequency of the oscillation and also the position when the kinetic energy is at a maximum. a. A=20 cm, f=5.1 Hz, x=20 cm
b. a= 20 cm, f= 2.5 Hz, x= 20 cm
c. A=20 cm, f= 2.5 Hz, x= 0 cm
d. A= 20 cm, f= 16 Hz , x=0 cm
e. the correct information is not listed in the answer selection.
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  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..