3. True or False. The sound of a cat purring is vibrations. O False
O True

(Science quiz)

its first and third is your answer i did the qustion the fourth isnt right

b.false that your answer

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.